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100+ Electrical Projects for Engineering Students

We know that electrical projects are used in many cases in our real life and they require more power when compared with electronics projects. Electrical project circuits use only passive components like capacitors, inductors, resistors, etc. As a result, many people like to get an idea about how electrical projects work and which projects may come under this category. For those people, here we are providing a list of top electrical projects ideas. These project ideas will be more helpful for engineering students also as many of them are showing lot of interest towards these electrical projects. All these projects ideas are collected from different resources and published here for visitors convenience. If any body interested, they may suggest some more project ideas through our contact us page so that we would include those project ideas also in this list.

SNo	Project
1	Star Delta Starter using Adjustable Electronic Timer for Low power Induction Motor: This project aims to provide cost-effective star delta starter for low power three phase induction motor in order to provide low voltage start. This project uses 555 timer in mono-stable mode which drives GTO (Gate Turn-Off) thyristors driver circuit so as to change the mains three phase supply from start to delta.
2	Programmable Switching Control for Industrial Automation in Repetitive Nature of Work: This project implements the programmable load switching control using microcontroller for applications where repetition of nature of work involved. This project operates in three modes namely manual mode, auto mode and set mode. In manual mode, various loads are controlled by the input given by user by switches or remotely through GSM. In auto mode, loads are switched at regular default timings while in set mode loads are controlled based on the timings set by the user.
3	Automatic Induction Motor Starter with Delay Using Microcontroller: This projects implements an automatic induction motor starter using microcontroller which works same as that of DOL starter. The microcontroller continuously monitors the three phases of input supply for over voltage and single phasing conditions and accordingly switches the relays to switch the motor.
4	Microcontroller Based Speed Control of Three Phase Induction Motor using V/F Method: This proposed project implements the microcontroller based hardware design to control the speed of three phase induction motor using V/F method. By receiving the feedback signal of speed, microcontroller will give PWM signals to the IGBT inverter bridge in order to drive the motor at desired speeds.
5	Power Factor Correction Using PIC Microcontroller: This project measures the power factor of the load using PIC microcontroller along with zero voltage and zero current crossing detector circuits. According to the set limits for leading and lagging power factors, microcontroller switches set of capacitors to improve the power factor.
6	Microcontroller Based Protection for Low Voltage Motors using Zigbee Technology: The main aim of this project is to protect and control low voltage motors from low voltage, ground fault, thermal overload and unbalance conditions. Various sensors employed in this design continuously monitors the parameters of the motor. Microcontroller compares all these sensor data with respective set limits and accordingly the switches the relay. This information will be sent to the remote PC using Zigbee communication module.
7	Underground Cable Fault Distance Locator: This project demonstrates a fault locating model which determines the fault that occurs in underground cables using microcontroller. This design uses the concept of Ohms law for detecting the change in voltage across the cable whenever fault or short circuit takes place in the cable.
8	Three Phase Fault Analysis with Auto Reset for Temporary Fault and Trip for Permanent Fault: The objective of this project is to develop an automatic tripping mechanism for both permanent as well as temporary faults that are takes place in three phase system. This project uses 555 timer as a main controller which resumes the load when a temporary fault occurs in three phase system while it makes the load to be remain in tripping mode during permanent fault.
9	Automated Wireless Energy Meter Reading System using GSM: This project implements an Automatic Metering Reading (AMR) System for energy meter without any human intervention for generating the electricity bill. This project uses ARM controller for measuring electricity consumption a given period of time. Further, this billing information is sends to utility companies as well as to the customers using GSM module.
10	BLDC Motor Speed Control with RPM Display: In this project the speed a BLDC motor is controlled precisely using microcontroller unit along with the hall position sensor. The microcontroller is programmed in such a way that it compares the actual speed (get from hall sensor) with desired speed and accordingly genrates the PWM signals to the motor driver unit.
11	PC Based Electrical Load Control: This project uses a personal computer to control various electrical appliances in homes by using microcontroller. Microcontroller acts as a data acquisition and control device which forms the bridge between PC and electrical appliances. Microcontroller receives the command signals from PC and appropriately controls the respective load.
12	Wireless Auto Power Trip during Gas Leakage: This project aims to reduce the fire accidents that are takes place due to gas leakage in the presence electricity. In this project gas sensor monitors the gas leakage which gives the input to microcontroller when it senses the gas leak. Then the microcontroller activates the tripping mechanism to shutdown the power supply. RF module used in this project to transfer the information remotely to the alarm circuit and tripping circuit.
13	Four- Quadrant Adjustable Speed Drive for Series Wound DC Motors: In this project, a four quadrant adjustable speed drive is implemented for series wound DC motors which are mainly employed in electrical traction systems. PIC microcontroller is used in this project to control the speed as well as direction of the motor. This project also includes the current limiting as well as speed limiting protection circuits.
14	Four Quadrant DC Motor Control without Microcontroller: This project deals with the implementation of four quadrant motor controller using 555 timer along with H-bridge driver. 555 timer produces the necessary PWM pulses to control the speed while relays are used for changing the polarities and also to apply the brakes to the motor.
15	Solar Powered Auto irrigation System: The main aim of this project is to implement solar based automatic irrigation system for switching the pumping motor depends on the signal from soil moisture sensor. By receiving the signals from the sensor, microcontroller performs the switching of pump using relay.
16	Zigbee Based Home Automation System: The aim of this project is to implement a home automation system to control the home appliances remotely using Zigbee technology. Sensors like temperature, LDR and gas detection sensors connected to the microcontroller unit continuously monitors the weather parameters. The home appliances are automatically controlled when these parameters exceeds their set limits. Remote monitoring and control is also facilitated with Zigbee communication.
17	Photovoltaic Panels Monitoring and Solar Energy Measurement System: This project monitors the parameters of photovoltaic cells and measures the solar energy generated. A set of sensors along with microcontroller unit continuously monitors the solar energy and also allows the user to access the remote monitoring of these parameters.
18	Smoke and LPG Gas Detection Robot with Wireless Control: The objective of this project is to design an RF robotic vehicle to detect the LPG and smoke for underground mining applications. The RF communication module attached with robot sends the sensed data to the central monitoring area.
19	Remote Monitoring System for Three-Phase Distribution Transformer using Zigbee : In this project, parameters of a three phase distribution transformer are monitored and controlled remotely using Zigbee communication. Transformer parameter like temperature of the oil, oil level, voltage, current, etc are continuously monitored using various sensors. The sensor data is transmitted to the central controller using Zigbee module.
20	Solar Powered LED Street Light with Auto Intensity Control: In this project, an energy efficient method for street lights is implemented to control the LED street lights. The power generated by the solar panels is stored in batteries during the day time and at the night this energy is supplied to the street lights. As the traffic on roads decreases from peak hours to late nights, this projects controls intensity of street lights based on timings.
21	LabVIEW Based Power Analyzer: This project uses LabVIEW software to measure and analyze the power quality parameters such as active and reactive power, harmonics, instantaneous power and power factor. In this a power analyzer VI is implemented using LabVIEW software along with DAQ board.
22	Wireless Power Transfer System using Magnetic Resonant Coupling: This project transfers the electric power from one circuit to the other without using any conducting medium between them. In this project, magnetic resonant coupling method is implemented to transfer the power from the source to a load.
23	Wireless DC Motor Control using DTMF Technology: The idea of this project is to perform wireless speed control of a DC motor from a mobile phone using DTMF technology. DTMF decoder receives the DTMF signals from the remote mobile to control the speed of a DC motor.
24	Cable Inspection Robot using Microcontroller and GPS Tracker: This project implements the underground cable fault detecting mobile robot that can navigate along the underground cable. This inspects fire accidents, obstacles, supply failures, presence of harmful gases, etc of the cable. GPS module facilitates finding of fault location and this information is further transferred to the main controller through the communication module.
25	Induction Motor Speed Control Using Android Application: The objective of this project is to control the speed of a single phase induction motor from Android mobile application. Bluetooth module attached to the control circuit receives the control commands from user mobile. Microcontroller receives these signals and controls the motor speed by varying the triggering pulses to the TRIAC.
26	Wireless Automatic Railway Gate Controlling cum Traffic Signaling: In this project, the level crossing gate as well as railway level crossing traffic lights are controlled using microcontroller unit along with IR sensors. IR sensors at particular positions on the track, gives the input to the microcontroller about the train arrival and departure information. According to these signals microcontroller controls gate operation as well as traffic lights.
27	Wireless Meter with Theft Monitoring and Control System: This project aims provide the automatic energy meter reading and to prevent practice of power theft. In this project, the overloading resulted from power theft is detected and this information is conveyed to the authorities through communication network.
28	Patient Monitoring System using GSM: In this project, human body vital parameters like pulse rate, body temperature and saline level are continuously monitored by various sensors using ARM microcontroller. Further, these monitored values will be sent to the remote mobile using GSM modem.
29	Design of a Low-Cost Contact-Less Digital Tachometer with Added Wireless Feature: This project measures the RPM or speed of a moving object (say motor) without any direct contact with it. The microcontroller receives the IR sensor data, processes it and converts it into RPM. RF communication module transfers this data to remote PC where it is recorded and stored.
30	A Hybrid Wind-Solar Energy System: The main aim of this project is to switch the loads to either wind or solar energy source depending on the maximum power generated. This circuit also uses MPPT system for maximum power generation.
31	Implementation of PID and Fuzzy PD Controllers for DC Servo Motor: This project implements fuzzy based PD and Ziegler-Nichols rule based PID controllers in order to control the DC servo motor position. A DAQ board along with LabVIEW software is used in this project to implement both controllers.
32	Smart Phone Based Home Appliance Control : This project uses the Smartphone to control the various household appliances such as fans, lights, kitchen appliances, etc. The microcontroller unit along with Bluetooth module receives the control signals from user Smartphone and then controls the home appliances.
33	Contactless Sensor based Water Level Controller: The aim of this project is to design a water level sensing device using ultrasonic sensor which measures the water level without any direct contact with water. Ultrasonic sensor gives the sensing information to the ATmega controller which further processes the data and indicates the level information.
34	Electric Power Management using Zigbee Wireless Sensor Network: The main aim of this project is to implement a system which differentiates and controls the devices in a network on the basis of power consumption of individual appliance. Zigbee communication enables the monitoring the various load consumptions and accordingly controls the load depends on the availability of power.
35	Ultra Fast Acting Electronic Circuit Breaker: This project demonstrates the ultra fast electronic circuit breaker that isolates the load circuit from mains supply at extreme faster rate as compared with bimetallic strip based circuit breaker. PIC microcontroller with current sensor unit detects short circuit or overload and appropriately turns the MOSFET in order to switch the load.
36	Design and Development of Microcontroller Based Solar Charge Controller: This project implements the solar charge controller circuit which charges the battery with amount of charge coming from solar panel. This circuit also regulates voltage to protect the battery from overvoltage and do not allow the battery to go into deep discharge.
37	Interactive Voice Response (IVR) System for Educational Institution: This project aims to build Interactive Voice Response (IVR) system for educational institution based on DTMF technology. Using this system, user can access the information stored in the database by pressing corresponding key on his/her mobile. DTMF decoder with microcontroller unit achieves this operation.
38	SCADA Based Monitoring and Controlling Using Zigbee: This project implements the real-time SCADA system using Zigbee communication technology. Zigbee activated microcontroller unit along with set of sensors acts as a Remote Terminal Unit (RTU) while Zigbee transceiver based PC acts as Mater Terminal Unit.
39	Solar Tracking Solar Panel Using ATMEGA8 Controller: The purpose of this project is to generate the maximum solar energy from the PV panel depends on intensity detected by Light Dependant Resistors. Microcontroller adjusts the direction of solar panel towards the sun based on the signals from LDR.
40	Automated Toll Tax Collection Using GSM and RFID: This project implements the automatic toll tax collection by facilitating advance registering through SMS. Microcontroller unit with GSM modem receives the request from vehicle owners and sends the acknowledgement including the password to user mobile. At the time vehicle reaching the toll plaza, microcontroller asks for password, upon authentication it deducts the amount from RFID attached to the vehicle automatically, and then opens the gate.
41	Real Time Data Monitoring of PV Solar Cell Using LabVIEW and DAQ: The data acquisition board (DAQ) along with the LabVIEW software is used in this project for monitoring photovoltaic cells in homes as well as industries. DAQ board acquires the various parameters of solar cells and sends to LabVIEW software where we can monitor those values in GUI.
42	Transient Stability Analysis of Power System Using MATLAB: The objective of the project is to design the stability analysis of power system as simulation model in simulink/MATLAB. For the assessment of transient stability, a multi-machine system is implemented in this project.
43	Direct Torque Control of BLDC Motor : In this project direct torque control technique for controlling the speed of brushless DC motors is simulated in order to attain faster response of torque. This project uses LabVIEW software to develop the fuzzy logic controller for this technique.
44	Data Logger and Remote Monitoring System for Multiple Parameter Measurement Applications: This project aims to build an embedded system that performs data logging and remote monitoring of various parameters. The environmental parameters like temperature and humidity are monitored with sensors. AVR microcontroller acquires the sensor data and makes a record of it in EEPROM. This project also facilitates to monitor the acquired or logged data through GSM module.
45	Touch Screen Based Wheelchair System: This project controls the direction and speed of DC motors which are attached to the wheelchair so that it moves in desired direction. This ARM controller with touch screen enabled design is very helpful for physically disabled persons to control their wheelchair.
46	Simulation Model of Hydro Power Plant Using MATLAB/Simulink: This project implements the simulation model of hydro power plant with hydro turbine and synchronous generator on MATLAB platform. This work is useful for conducting operating tests as well as for analyzing the results.
47	Battery Monitoring System using Microcontroller: This project implements a battery monitoring system for UPS, telephone communication and hybrid electrical vehicle applications. Battery parameters like voltage and temperature continuously monitored using slave microcontroller unit while master controller gathers all the batteries information.
48	Microcontroller Based Inductance Meter: This project is intended to design a microcontroller based inductance meter to measure the unknown value of inductor. This project makes use of resonant frequency of LC circuit principle to achieve this operation using ATmega controller.
49	Data Logger for Solar: The aim of this project is to measure and store the solar energy parameters using Arduino controller. Sensors like LDR, temperature sensor, current sensor and voltage sensor monitors the respective parameters of the solar panel. The acquired data from Arduino controller is transferred to the PC where it is logged.
50	Design and Development of a Parabolic Dish Solar Water Heater: The main aim of this project is to develop the parabolic dish solar water heater for water heating applications. In this embedded electronic circuit is implemented for the parabolic dish to track the sun continuously in order achieve high efficiency.
51	Voice Operated Robotic Vehicle: The main objective of this project is to control the movements of robotic vehicle through voice commands of the user. The Speech recognition module along with RF transmitter sends the voice signals to remote robot. RF receiver in the robot correspondingly receives the signals and controls the robot movements.
52	Design and Simulation of Fuzzy Controlled SVC for Transmission Line: In this project Static VAR Compensator scheme is implemented for transmission line based on fuzzy logic. This system controls the reactive power by implementing the firing angle control scheme in MATLAB.
53	Maximum Power Point Tracking for Low Power Photovoltaic Solar Panels: This project describes the enhancement of power generated by the solar panel using MPPT algorithm. This MPPT (Maximum Power Point Algorithm) implemented on microcontroller in order to maximize the output.
54	Android Mobile Phone Controlled Bluetooth Robot using 8051 Microcontroller: This project involves in the designing of Android mobile application controlled robot using microcontroller. Android application based control commands received by Bluetooth module enables the microcontroller to control the DC motor speed and direction.
55	Street Light Glow on Detecting Vehicle Movement using Sensor : The main aim of this project is to implement an energy efficient street lighting system which controls the street lights based on the movement of vehicles on the road. Microcontroller with set of IR sensor detects the vehicle movement and with this sensed data microcontroller switches the street lights.
56	Implementation of an Omni Wheels Robot: This project builds Omni-directional robot which can move in different directions. Arduino controller with motor driver circuit controls the motion of the robot in different angles.
57	Design of Load Sharing control system using PIC Microcontroller: The main aim of this project is to adjust the availability power with consuming load. This system measures the power using current and voltage sensing circuits for every energy source i.e., for wind, solar, grid and generator source. PIC microcontroller compares the load consumption and then optimally connects the respective load to the healthier source.
58	Simulation of Inverter Fed Induction Motor Drive with LabVIEW: This project simulates the mathematical model of inverter fed induction motor using LabVIEW software. This simulation is helpful for analyzing the dynamic characteristics of motor.
59	Footstep Power Generation using Piezoelectric Sensors: This proposed system presents the usage of piezoelectric sensors to generate the power from human foot pressure. The power generated from the piezoelectric sensors is stored in the battery and inverter converts the battery voltage (DC) to load operating voltage (AC). Microcontroller unit measures the power generated by these sensors and accordingly displays the amount of power generated.
60	Speed Synchronization of Multiple Motors using Microcontroller: This project uses RF communication to synchronize the multiple motors in an industry. In this, all the motors are equipped with RF transceiver module along with microcontroller unit. This arrangement causes to change the speed of remaining motors if speed of the one motor is changed.
61	Head Movements based Wireless Device Switching : The main aim of this project is to switch the electrical loads or devices based on the head movements of a person using MEMS sensor. This type of project is helpful for physically challenged and paralyzed persons.
62	Bidirectional Rotation of an Induction Motor with a Remote Control Device : This project aims to control the speed and direction of induction motor using TV remote. IR sensors and microcontroller unit are used in this project to receive the signals from TV remote. A relay driver is connected to the microcontroller unit to change the direction of motor.
63	Hall Effect Sensor Based Portable Tachometer for RPM Measurement: This project deals with the implementation of portable, accurate and contactless tachometer using linear Hall Effect sensor. This sensor produces the number of pulses per revolution which are given as input to the microcontroller unit. Microcontroller measures these pulses per minute in order to give the RPM display.
64	Power Quality Monitoring and Power Measurements by using Virtual Instrumentation: This proposed project describes the design of power quality measurement and monitoring in LabVIEW environment. Various power quality parameters of voltage, current and power are measured and analyzed in this project using virtual instrumentation techniques.
65	Differential Transformer Protection using Arduino: This project implements the Arduino based differential protection for the transformer in order to protect the transformer from various electrical faults. In this, current transformers along with Arduino controller measure the differential current and if any fault occurs, it operates the relay.
66	Wireless Load Control Device using GSM Module: The intention of designing this project is to make more convenient and time saving method to control the loads from remote places. This project uses GSM module with microcontroller unit to receive user control commands to switch ON/OFF the particular load.
67	Design and Implementation of IGBT Based Single Phase AC Drive using PIC 18F452: This project implements single phase AC drive to control the speed of induction using PIC microcontroller. A constant voltage per hertz technique is implemented in this project by generating PWM pulses to drive the IGBTs.
68	On-Line Monitoring and Analysis of Faults in Transmission and Distribution Lines using GSM: This project uses the GSM technology to convey the fault information of transmission and distribution lines to utility department. In this project microcontroller unit along with sensors detects the faults that are takes place in power lines.
69	Wireless Temperature Data logger Using Zigbee: This project develops a temperature data logger system using microcontroller and Zigbee communication module. A temperature sensor with ADC enables the continuous acquiring of temperature data at the field side where Zigbee transmitter module is employed. At the receiver side, Zigbee receiver with microcontroller unit receives and logs the temperature data.
70	Microcontroller Based Active and Reactive Power Measurement: This design aims to measure and indicate the active and reactive power of an electrical system using PIC microcontroller. With the help of input from zero crossing detector circuit, PIC microcontroller calculates these two parameters and stores the data in EEPROM.
71	Simulation of Extra High Voltage Long Transmission Lines: In this project, simulation of EHV long transmission lines is performed in order to analyze various parameters and circuit condition under normal working conditions.
72	Microcontroller Based Modified SEPIC Converter for Driving Lamp with Power Factor Correction: This project presents a topology of Single-Ended Primary Inductance Converter (SEPIC) with half bridge inverter to feed the electrode less fluorescent lamp. This project improves the power factor and reduces the total harmonic distortion.
73	Substation Monitoring and Control using Zigbee: The objective of this project is to develop the remote monitoring and control system for substation using Zigbee module. Various parameters of the distribution transformer in substation are continuously monitored using Zigbee module. Zigbee receiver at the main station acquires these parameters and takes action accordingly.
74	Interleaved Quadrupler DC ÐDC Converter High Voltage Gain with Low Voltage Stress: In this project implements the interleaved quadrupler voltage DC-DC converter to achieve high voltage gain and to reduce current ripples and conduction losses. This design uses three stage interleaved boost converter with voltage quadruoler circuits.
75	Control of Boiler Operation using PLC-SCADA: This project achieves the automatic control operation of boiler using PLC and SCADA. Boiler temperature and pressure are continuously monitored using temperature and pressure sensor respectively. The PLC acquires these sensor values and depends on the control algorithm, it controls the actuators. SCADA system enables the remote monitoring and control of boiler operation.
76	PLC Based Intelligent Traffic Control System: This project aims to implement an intelligent based traffic control system using sensors and PLC. Photoelectric sensors detect the presence of vehicles on various junctions of the road and give the signals to the PLC. Based on the program in the PLC, it controls the traffic signals.
77	PLC Based Robotic Arm Control System: This project implements the robotic ARM control system using PLC for precise control. Programmable logic controller (PLC) is programmed to perform different ARM movements by giving the corresponding signals to motor driver circuit.
78	Implementation of PLC Based Elevator Control System: This project describes the implementation of elevator control system using PLC. Hall Effect sensor detects the position of the elevator and gives the corresponding signal to the PLC. According to the program in the PLC, it generates the control signals to the DC motor to control the movements of elevator.
79	Design of PLC and SCADA Based Control Panel for Continuous Monitoring of 3-Phase Induction Motor: In this, efficient and versatile tool for controlling the induction motor is proposed which control and monitors the speed with high accuracy. A variable Frequency Drive (VFD) based PLC controls the speed of the motor at better regulation. SCADA system for this project is implemented for remote monitoring and control of the speed.
80	Power System Stability Enhancement by Simultaneous AC-DC Power Transmission : The main aim of this project is to present the simulation of simultaneous AC-DC power transmission by superimposing DC on AC. This project replaces the parallel AC-DC transmission by converting double circuit AC into composite AC-DC transmission line. This work is simulated in MATLAB platform.
81	Analysis of DC-DC Converters for Renewable Energy System: This project analyses the selection of DC-DC converter with transformer to produce the desirable characteristics for electrolyser applications using MATLAB. In this, ripple-free regulated output is produced by the DC-DC converter.
82	PLC Based PID Speed Control System: This project deals with the design of intelligent drive controller for AC motor by implementing PID (Proportional-Integral-Derivative) control scheme. This project achieves the precise control by exactly tuning the PID parameters using Ziegler-Nichols methods.
83	PLC Based Induction Motor Starting and Protection: In this project, slip ring induction motor starting, protection and speed control schemes are implemented using programmable Logic controller (PLC). Rotor resistance control method is implemented as starting method while overvoltages, over current and over temperature protection schemes are implemented to protect the IM.
84	Simulation and Comparison of SPWM and SVPWM Control for Three Phase Inverter: This project deals with the modeling of Space Vector Pulse Width Modulation (SVPWM) technique which effectively uses the DC bus voltage and produce the less harmonic content as compared with Sinusoidal PWM technique. This model is simulated using Simulink/MATLAB and results are compared with SPWM technique.
85	Modeling of Induction Motor and Fault Analysis: In this work, induction machine model is implemented in Simulink/MATLAB to analyze the motor performance and for effectively diagnosing the rotor faults. This analysis is carried out for single, double and three bar broken rotor faults.
86	Improved AC-AC Converter For Induction Heating Applications: This MATLAB based project simulates the single-switch parallel resonant converter (improved AC to AC converter) to produce high frequency currents for induction heating applications. The analyzed results are compared with existing half and full bridge inverter topologies.
87	Solar Powered Mobile Charger Using Buck Converter: This project aims to build solar powered mobile charger circuit using synchronous buck converter. The DC power obtained from the PV array is synthesized and modulated using this buck converter in order to meet the load requirements.
88	Modeling & Simulation of Doubly-Fed Induction Generator for Variable Speed Wind Energy Conversion Systems : The objective of this project is to model and simulate the double-fed induction generator in the MATLAB Simulink environment. Based on the vectorized dynamic approach, DFIG model is described in this project.
89	Automation of Coal Handling Plant of a Power Generation Unit using PIC Microcontroller: This project demonstrates the automation of coal handling plant of a thermal power generation unit using proximity sensors and PIC microcontroller. Based on proximity sensors signal, microcontroller controls the speed of stepper motor which further drives the conveyor belt. This also implements the interlock facility in motors to provide the safety.
90	Distribution Transformer Fuse Failure Detection and Information Passing System: The main objective of this project is to detect the failure of fuse that employed at the distribution transformer. This failure information is intimated to the concerned person through GSM module. In this project LabVIEW based PIC microcontroller is used along with the voltage sensor to detect fuse failure.
91	Wireless Design for Power Theft Monitoring: This project aims to implement anti-power theft monitoring system using wireless sensor networks. This wireless sensor device is a power metering device of the customer which sends the load information periodically to the controlling station. The controlling station aggregates all the user data and automatically detects the power theft user by comparing extra load consumed than that of actual value.
92	Speed Control of Universal Motor Using Microcontroller: A TRIAC and microcontroller based circuit is implemented in this project to control the speed of universal motor. Microcontroller provides the phase angle control of TRIAC which varies the power through universal motor.
93	Conductor Temperature and Sag Monitoring System using Zigbee and GSM : This project aims to measure and monitor the sag and temperature of high voltage overhead conductor using sensors without making any interruption to the continuous power supply. These sensed parameter values are send to the central monitoring station using Zigbee module and also to the authorized persons using GSM module.
94	Implementation of Programmable Automatic Voltage Regulator: The main aim of this project is to implement Programmable Automatic Voltage Regulator (PAVR) using microcontroller. This project achieves the stabilization of output voltage with the deviation of input voltage from 100 to 340 volts.
95	GSM Based Automated Embedded System for Monitoring and Controlling of Smart Grid: This project demonstrates the remote monitoring of smart grid parameters using GSM module. Electrical parameters like voltage, current, power and frequency are acquired by the data acquisition device. These real time values are periodically send to authorized persons through GSM network.
96	Measurement of Air Breakdown Voltage and Electric Field using Standard Sphere Gap Method: In this project, air breakdown voltages and electric field of the high voltage equipment are measured by using sphere gap method for the measurement of high voltages.
97	Calculation and Analysis of Transformer Inrush Current of Transformer: In this work, analytical formulas are implemented to calculate the inrush current in transformer. And then the effect of switching angle variation, remnant flux and energizing circuit impedances on inrush current characteristics are analyzed using MATLAB.
98	Inductance Capacitance and Frequency (LCF) Meter : The main aim of this project is to implement a portable instrument to measure inductance, capacitance and frequency. This two probe device is implemented using PIC microcontroller with additional circuitry for accurately measuring and displaying these parameters.
99	Implementation of Frequency Locked Loop DC Motor Drive System: This project implements the LabVIEW based frequency locked loop control algorithm for controlling the speed of DC motor. This project describes capability to maintain the speed stabilization and regulation in order to recover the rated speed from load change.
100	Circuit Breaker Based Feeder Pillar with Over current and Earth-Fault Protection : This project aims to design and simulate the 415V AC feeder pillar with earth fault, overload and over current protection using earth leakage CB, three phase overload relay and sequence relay. This design and simulation is performed on MATLAB platform.
101	Design Automatic Meter Reading (AMR) Data Logger with Xbee: This project demonstrates the design of Automatic Meter Reading (AMR) data logger to read, collect and store the energy consumption of various consumers remotely using Zigbee technology. This design is implemented using Arduino controller and Zigbee communication module.
102	A Domestic Robot for Security Systems Using Zigbee Technology: This project aims to build a robotic vehicle that can enhance the security at homes. This project achieves the door locking system with active input from ultrasonic sensor and PIR sensors. A camera attached to this system enables the remote monitoring using Zigbee technology. source:ELECTRONICS HUB

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MOBILE ARCHITECTURE LESSON NO.2

Native vs Web vs Hybrid: Which Mobile Architecture is Right for Your App?

Picking the right mobile architecture for your apps can amount to a million dollar decision. And there isn’t a one-size-fits-all architecture to solve all mobile problems.
Based on our years of experience helping our enterprise customers deliver mobile applications, our team of mobile app experts have compiled a guide to help you select the right mobile architecture. The guide includes a decision tree and a set of simple instructions that help explain the benefits and tradeoffs of each type of mobile approach.
We thought everyone could benefit from this expertise, so we are sharing it with our community in the form of the infographic below (and a companion eBook here).
In exchange, please share your experience with the decision tree in the comments section below!

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BEST FOR THE PROJECT PRESENTATION

SPEECH (Language Choices)

The language choices that are made in a technical presentation should be largely dictated by the prior knowledge of the audience.  A presentation that you give to a general public audience will use very different language than a presentation given to a group of colleagues in your lab.

1. Analogies, examples, and stories. The employment of these strategies can often be the difference between a good presentation and a great one. Examples and stories help technical information to “come alive” for an audience and most scientific presentations can benefit from trying to include an example or story.  Analogies are one of the most powerful speech strategies available to a technical presenter. An analogy anchors a complex technical idea to a concept or idea that an audience already understands. When you use an analogy, you are using the audience’s prior knowledge and understandings to explain your technical concept. This is a much deeper form of learning because it is anchored to something that was already in their brain. As a result, the retention of concepts explained with analogies can be much higher because the listener’s brain already has a place to file that information, instead of having to create an entirely new file from scratch.
2. Provide clear definitions for key terms. When you introduce a new term, take just a moment to define it simply and clearly. This doesn’t take long, but it is worth the time in the presentation because it ensures that your audience is on the same page with you.   
3. Anticipate the questions of your audience. An excellent language strategy that will help you engage you audience in your presentation is to consider where they would have questions about your material. When you see these points in your presentation, you can verbally acknowledge this to your audience, “So you might be wondering at this point…” This makes the audience feel as though you are relating this talk to their needs and the result will be that they will be more likely to stay engaged.
4. FOR MORE TIPS VISIT DOWNLOAD SITE PAGE TO DOWNLOAD FILES FOR THE PROJECT PRESENTATION OR CLICK HERE

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ENGINEERING PROJECTS IDEAS

SNO	Electronics Projects
1	Water Level Controller using 8051 Microcontroller: Here we are designing the circuit which is used to detect and control the water level automatically in overhead tank using 8051 microcontroller. It is used in industries to control the liquid level automatically.
2	Car Parking Guard Circuit Using Infrared Sensor: This circuit helps the person in the driving seat in such a way that it gives an alarm if there is any obstacle or a wall while parking or while driving in reverse. It is very useful in our real life.
3	Cell Phone Detector: This is a simple circuit which helps to detect the presence of an activated cell phone by detecting the signals in the frequency range of 0.9 to 3GHz. It helps in mobile phones tracking which are used for spying.
4	Bidirectional Visitor Counter using 8051: This Bidrectional Visitor Counter Circuit is helpful to count the number of persons entering or leaving a room and to display it on a screen.
5	Password based Circuit Breaker: This password based circuit breaker project is built using 8051 controller and is used to switch off the power supply to the line by entering a password.
6	Temperature Controlled DC Fan using Microcontroller: The main principle of the circuit is to switch on the fan connected to DC motor when the temperature is greater than a threshold value.This can be used in home applications and in cpu to reduce heat.
7	Auto Intensity Control of Street Lights: This is a simple circuit that automatically controls the intensity of street lights which is designed using microcontroller and LEDs.
8	Line Following Robotic Circuit using ATMega8 Microcontroller: This line follower robot is a basic robot that follows a specific path indicated by a line having some particular width.
9	Digital Tachometer using 8051 Microcontroller: Here we designed a simple non contact tachometer using microcontroller which can measure speed with an accuracy of 1 rev/sec.
10	5 Channel IR Remote Control System using Microcontroller: This article is aimed to design and demonstrate a simple 5 channel remote control system to drive five loads. This circuit works on the principle of IR communication.
11	Bipolar LED Driver Circuit: This bipolar LED driver circuit is very useful at the places where flashing of light is required, as in beacon flashing. This circuit can be mainly used for indication purposes.
12	Celsius Scale Thermometer using AT89C51: This Celsius Scale Thermometer circuit is designed using at89c51 and lm35. This circuit works on analog to digital conversion principle. It can be used at homes, mobile places like cars to keep a track of the temperature.
13	Density Based Traffic Signal System using Microcontroller: In this system, we use IR sensors to measure the traffic density. We have to arrange one IR sensor for each road; these sensors always sense the traffic on that particular road. All these sensors are interfaced to the microcontroller. Based on these sensors, controller detects the traffic and controls the traffic system.
14	Automatic Washroom Light Switch: This is a simple but very useful circuit in our real life which helps to automatically turn On the lights when a person enters the washroom and it automatically turns Off the lights when he leaves it.
15	Automatic Door Bell With Object Detection: This automatic doorbell with object detection circuit helps to sense the presence of a person or an object automatically and rings the doorbell.
16	Water Level Indicator: This Water Level Indicator project employs a simple mechanism which helps to detect and indicate the water level in an overhead tank or any other water container. It can be used in Hotels, Factories, Homes Apartments, Commercial Complexes, Drainage, etc.
17	Password Based Door Lock System using 8051 Microcontroller: This system demonstrates a password based door lock system wherein once the correct code or password is entered, the door is opened and the concerned person is allowed access to the secured area. After some time, the door would be closed. Read this post completely to get more information.
18	Boolean Algebra Calculator: This Boolean algebra calculator is an interesting project which is more useful in our real life by working as a portable calculator to simplify the Boolean expression on the fly. In our circuit, we use Boolean algebra simplification methods like the Quine-McCluskey algorithm to simplify the Boolean expression and display the output on the display.
19	Auto Night Lamp using High Power LED: This Auto Night Lamp is an interesting circuit which helps to turn ON the LED lights interfaced to it at night time and it turns OFF the lights automatically when it is day.
20	Mobile Jammer Circuit: This circuit is used to block the signals of cell phones with in the range of 100 meters. This circuit can be used in TV transmission and also for remote controlled toys or play things.
21	Unbiased Digital Dice with LEDs: This is a circuit diagram of digital dice which is nearly unbiased. By using this circuit, there is no chance to cheat as the circuit operates at such a high speed that the circuit is almost imperceptible to the human eye.
22	Metal Detector Circuit: This is a simple metal detector circuit which is very useful for checking the person in shopping malls, hotels, cinema halls to ensure that person is not carrying any explosive metals or illegal things like guns, bombs etc.
23	Panic Alarm: This panic alarm circuit helps us to intimate others regarding our bad situation without any delay. It is more useful when an intruder entering our house or bad health status at which we are unable to intimate to the people around us.
24	Wire Loop Breaking Alarm: This circuit works as a continuity tester device which tests the continuity of the wire at hand. It is an indispensable tool to check broken wires and undesired shorting of wires.
25	Rain Alarm Circuit: Rain water detector will detect the rain and make an alert; rain water detector is used in the irrigation field, home automation, communication, automobiles etc. Here is the simple and reliable circuit of rain water detector which can be constructed at low cost.
26	Automatic Plant Irrigation System: This project circuit is more useful in watering plants automatically without any human interference. It is more useful when the owner is not present in the home for few days.
27	Hot Water Geyser Controller Circuit: This circuit is made to turn OFF geysers as soon as our water gets hot and are ready for bathing.
28	Lead Acid Battery Charger Circuit: Lead Battery is a rechargeable battery and is more useful in our real life as it will dissipate very little energy, it has very low energy to weight ratio, it can deliver high current, can work for long time with high efficiency and is very low cost.
29	Motion Detector Circuit: The motion detector is not only used as intruder alarm but also used in many applications like home automation system, energy efficiency system, etc. The motion detector will detect the motion of the people or objects and give the appropriate output according to the circuit.
30	Digital Voltmeter Circuit using ICL7107: Here we designed a analog to digital converter working as a digital voltmeter using a low power three and half digit A/D converter ICL7107 having internal 7 segment decoders, display drivers, a reference and a clock.
31	8 Channel Quiz Buzzer Circuit using Microcontroller: We built the circuit using a microcontroller which scans the input from push buttons and displays the corresponding number on a display device.
32	2 Digit Up Down Counter: The main principle of this circuit is to increment the values on seven segment displays by pressing the button. This circuit can be mainly used in scoreboards.
33	Bike Turning Signal Circuit: The objective of this circuit is to indicate left or right turn for bike/vehicle. Two identical circuits are needed, one is for left and the other is for right. The main heart of this circuit is 555 timer.
34	Automatic Changeover Switch: This is a simple automatic changeover circuit in which DC load like a series of LEDs are driven either by a battery or an AC-DC power supply.
35	UP/DOWN Fading LED Lights: This is a simple up/down fading LED lights circuit which can be used in shopping malls, home and security applications."/>
36	Police Lights using 555 Timer: This circuit simulates the police car lights by alternate flashing. This circuit flashes red LEDs for three times and blue LED’s for three times. This flashing action performs continuously. This circuit uses 555 timer and a decade counter.
37	PWM based DC Motor Speed Control using Microcontroller: Here is a simple DC Motor speed control circuit designed using AVR Microcontroller. Here we use a technique called PWM (pulse width modulation) to control the speed of DC motor.
38	Ding Dong Sound Generator Circuit: This is ding dong sound generator circuit is designed using 555 timer IC in astable mode. It can be used as doorbell. With some modifications, it can be used to produce different sounds. Read this post for complete details.
39	PIR Sensor Based Security Alarm: This article explains about PIR based security system in which PIR sensor is used instead of transmitter or receiver. This saves the power consumption and is low cost. This circuit can be used in the museums to protect the valuable things.
40	TV Remote Control Jammer: This proposed TV jammer circuit confuses the infrared receiver in a TV by producing the constant signal that interferes the remote control signal. If you switch on the circuit once, the TV will not receive any command from the remote. This allows you to watch your own program without anyone changing the channel or volume.
41	Super Sensitive Intruder Alarm: This circuit is designed to alert the user when an intruder enters into the home. If there is any obstacle in front of IR sensor, it generates an interrupt signal. This interrupt signal is given to the speaker to alert the user.
42	Remote Control Circuit through RF without microcontroller: Here we have used RF434 MHz modules to make wireless remote. Using this remote, we can control the appliances within the range of 100 meters. It is used for remote control applications like burglar alarm, car door alarm, calling bell, security systems, etc.
43	High and Low Voltage Cutoff with Delay and Alarm: This high and low voltage cutoff with delay alarm circuit is an advanced automatic voltage stabilizer circuit and is used to protect our home appliances. It's cost is less as compared to voltage stabilizers.
44	Solar Battery Charger Circuit: Here is the simple circuit to charge 6V, 4.5Ah rechargeable Lead-acid battery from the solar panel. This solar charger has current and voltage regulation and also has over voltage cut off facilities. This circuit may also be used to charge any battery at constant voltage because output voltage is adjustable.
45	Car Battery Charger Circuit: This article aims to describe the principle of operation, design and working of a simple car battery charger from AC mains supply and a feedback control section to control the battery charging.
46	Simple 100W Inverter Circuit: This is a small Inverter circuit which converts the direct current (DC) to alternating current (AC).
47	Fire Alarm with Siren Sound: This circuit alerts us when there is a fire accident at home by ringing a siren sound instead of a buzzer.
48	Construction of Basic Logic Gates using NOR Gate: Here, we have shown how to construct the basic logic gates - NOT, AND, OR gates using NOR Gate which is one of the universal gates.
49	Police Siren Circuit using NE555 Timer: This circuit produces a sound similar to the police siren. You may also get detailed information about pin diagram and internal block diagram of NE555 timer.
50	100W MOSFET Power Amplifier Circuit: A power amplifier circuit using MOSFET has been designed to produce 100W output to drive a load of about 8 Ohms.
51	Intelligent Unambiguous Night Lamp Switcher: This is the circuit diagram of unambiguous night lamp switch, which turns ON our domestic lights automatically when it is dark, without human interference. It also avoids repeated frequent switching of the devices which is usually ignored in most similar circuits but may have a detrimental effect on our operating devices.
52	Automatic Railway Gate Controller with High Speed Alerting System: The main aim of this project is to operate and control the unmanned railway gate in the proper manner in order to avoid the accidents in the unmanned railway crossing.
53	LED Flasher Circuit: LED Flasher is a simple circuit which will blink the LEDs in regular time period. This circuit can be used for decoration purpose or can be used for a signaling purpose and many more.
54	Dancing Bi-Color LED Lights Circuit: Generally we use small voltage bulbs in the dancing bulbs. This circuit is mainly used in the occasions, decoration articles or in visual indication sign boards etc. In this project, we use bi-color LEDs for sequential running light.
55	Thermistor Temperature Sensing Alarm: This circuit is a temperature sensing as well as alarm circuit. The circuit raises an alarm whenever the temperature crosses a certain limit.
56	Pull Pin Security Alarm System: This circuit helps us to get alerted when anybody picks our pockets or bags. The circuit is very helpful to prevent our goods getting pick pocketed.
57	Auto Turnoff Soldering Iron Circuit: This circuit helps the soldering iron to turn off automatically when it detects overheating and thereby avoids it from getting damaged.
58	Remote Operated Alarm Circuit: This circuit rings an alarm when you point a TV remote at it and press on any button. This can be used as a calling bell to call your assistant.
59	Battery Charger Circuit Using SCR: Here is the circuit diagram of battery charger circuit using Silicon Controlled Rectifier. SCR can be used in half wave rectifier, full wave rectifier, inverter circuits, power control circuits, etc.
60	FM Bugger Circuit: Here is small circuit with which you can listen to another people conversation from long distance using the normal FM radio set. This FM bugger circuit is kept in room where you want listen the conversation. You can listen to this conversation using the normal FM radio set.
61	Battery Powered Portable Light: This circuit is more helpful in handling unexpected and undesired darkness in our homes or offices. It provides considerable amount of brightness required to do our daily tasks.
62	IR Remote Control Switch: By using this circuit, we can control any house hold appliance with the help of remote. In this project, there are two parts – one is in transmitting section and the other is in receiving section. Receiving section will be in a stable position which is connected to any load and transmitter will act as a normal remote.
63	Cell Phone Controlled Robotic Vehicle: This is simple DTMF based Cellphone controlled robotic vehicle circuit without using microcontroller. It can be used in industries and surveillance systems.
64	Human Detection Robot using 8051 Microcontroller: The main principle of the circuit is to detect the human using human detection sensor. The wireless robot is operated manually using PC. The wireless technology used here is Radio Frequency technology. The data is transmitted to receiver through RF.
65	SMS Controlled Robot: GSM controlled robot or SMS controlled robot is a wireless robot which performs the necessary actions by receiving a set of instructions in the form a Short Message Service (SMS).
66	Remote Password Operated Electronic Home Appliances: This circuit explains you how to control the electrical appliances using an Android device. Here, Bluetooth module is interfaced to 8051 microcontroller. This Bluetooth receives the commands from the Android application device using wireless communication.
67	Metal Detector Robotic Vehicle: Land mines buried under the ground causes threat to the lives and affect the economy of the nation. Detection and removing of these mines manually is a dangerous task. So, we use a metal detection robot which works on RF technology.
68	Water Level Alarm Using 555 Timer: This is a simple and low cost hardware project using a 555 timer circuit. The aim of this project is to design a water level detecting alarm with simple and low cost hardware without compromising on the performance of the device.
69	Speed Control of DC Motor Using Pulse Width Modulation: This pulse width modulation technique is the more efficient way to proceed to manage the speed of our DC motor manually.
70	Sun Tracking Solar Panel: This article describes about circuit that rotates solar panel. This Sun tracking solar panel consists of two LDRs, solar panel, stepper motor and ATMEGA8 Microcontroller.
71	Touch ON and OFF Switch Circuit: This Touch ON/OFF Switch circuit is more useful in such a way that we can automatically ON or OFF any switch by touching a device without moving from our place.
72	USB Mobile Charger Circuit: This circuit is useful in charging the mobiles through USB outlet present in our laptops and PCs. For the charging of your mobile phone, this circuit provides you a regulated voltage of 4.7 volts.
73	Security Alarm Circuit: This circuit helps you to guard your precious documents as well as jewellery from intruders or theft. All you need is to just place this circuit in front of the locker or below the mat so when any unknown person come and walk over the switch, the circuit will trigger and sound of alarm comes.
74	Mosquito Repellent Circuit: Here is the simple electronic mosquito repellent circuit which can produce ultrasound in the frequency range of 20-38 kHz, which can scare away mosquitoes.
75	Simple FM Radio Jammer Circuit: This is a Jammer circuit which is used to block the signals. Jammer circuit produces the high frequency signal which will confuse the receiver of particular system from receiving the signal, even though circuit is working properly, user of the system feels that circuit is not working properly.
76	Automatic Street Light Controller Circuit Using Relays and LDR: This circuit helps in automatically turn ON/OFF the street lights using relays and LDR. The whole circuit is based on IC CA3140.
77	Battery Charger Circuit: This battery charger circuit works on the principle of controlling switching of an SCR based on charging and discharging of battery.
78	PWM LED Dimmer Using NE555: The Pulse Width Modulation (PWM) plays an important role in controlling the circuits. We use this PWM to dim the intensity of light of the LED.
79	Simple Fire Alarm Circuits: Here are two simple fire alarm circuits which are used to detect the fire automatically and inform to the people immediately with an alarm.
80	Wireless Switch Circuit using CD4027: This is a simple circuit which needs no physical contact with the appliance. In this circuit, all you need is to pass your hand above LDR to ON or OFF the switch.
81	Electronic Letter Box: This is a simple circuit which helps in finding out any letter dropped in our box by stopping the LED lights attached in this circuit.
82	Clap Switch Circuit for Devices: This is another simple but very useful circuit which helps to ON or OFF a device without moving from you place and also helps to control the speed of the electric devices like fan, etc.
83	12v DC to 220v AC Converter Circuit: Here is a simple voltage driven inverter circuit which converts 12v DC signal to single phase 220v AC using power transistors as switching device.
84	FM Transmitter Circuit: Here we built a wireless FM transmitter which uses RF communication to transmit the medium or low power FM signal. The maximum range of transmission is around 2 km.
85	100w Subwoofer Amplifier Circuit: Here is the circuit diagram and working of 100w subwoofer amplifier circuit. A Subwoofer is a loudspeaker which produces audio signals of low frequencies.
86	DTMF Based Home Automation System Circuit: This is a simple and very useful circuit in our real life named DTMF controlled home appliances system. It helps to control the home appliances using DTMF technology.
87	Street Lights that Glow on Detecting Vehicle Movement: This article describes about the circuit that switches the street lights on detecting vehicle movement and remains off after fixed time. This system controls the street lights using light dependent resistor and PIR sensor.
88	555 Timer IC Testing Circuit: This is a simple 555 IC testing-circuit which tests your entire 555 timer IC. So before using your IC, you may check whether your IC is good or bad by using this circuit.
89	Curtain Opener/Closer Circuit: This circuit will open and close the curtain of your home and office just by pushing a switch. So with the help of this unique circuit, we do not need to move from one place to open and close the curtain.
90	Variable Power Supply and Charger: This is a circuit which helps to check or test your electronic projects and also to charge the Mobile phone batteries. This circuit can also work as an emergency light.
91	LED Running Lights Circuit: This is a simple circuit consists of 9 LED lights in knight rider scanner mode. It will present an eye catching look as the LED initially travel in the one way and then travel reverse in the similar direction.
92	Luggage Security Alarm: This is a simple alarm circuit which helps in ringing a warning alarm when someone tries to steal the luggage.
93	9 Way Clap Switch Circuit: This circuit helps you to manage your appliances in your home by just clap without moving from your bed.
94	12V to 24V DC Converter Circuit: This is another kind of circuit which helps to convert 12V DC current to 24V DC current.
95	230V LED Driver: Here we design a simple circuit driving a series of LED from 230V AC. This is accomplished using a capacitor based power supply. This is a low cost and efficient circuit and can be used at homes.
96	3X3X3 LED Cube: This is a simple a simple LED cube circuit designed without using microcontroller. It is based on the principle of driving LEDs using the clock pulses.
97	Monostable Multivibrator Circuit Operation: Here is the monostable multivibrator circuit diagram and working. Multivibrator is an electronic circuit which will work as two stage amplifier operating in both stable and astable mode.
98	Interfacing16X2 LCD with PIC Microcontroller: This is a circuit which helps in interfacing 16×2 LCD to PIC18F4550 microcontroller which is of family PIC18F.
99	555 Timer in Monostable Multivibrator Mode: The circuit is triggered by a falling edge, that is, by a sudden transition from HIGH to LOW. The trigger pulse, produced by pressing the button, must be of shorter duration than the intended output pulse.
100	555 Timer as an Astable Multivibrator: In this circuit, There are three resistors named R inside it and all have equal values. These form a voltage divider having reference voltages of 1/3 and 2/3 of Vcc (the power supply). The logic state of the flip flop is controlled by the reference voltage which is given to one of the inputs of both two comparators.
101	Mains Operated LED Light Circuit: This is a simple circuit which is more useful to save our resources, energy and money by installing in your homes.
102	LED Lamp Dimmer Circuit: In this circuit, at the starting LED glows slowly, then grown brighter and once again slowly it became dim. The basis of the whole circuit is an operational amplifier IC named LM358.
103	Variable Voltage Power Supply from Fixed Voltage Regulator: This Voltage regulator circuit is used to get fixed voltage at the output without depending on the input voltage.
104	LED Christmas Lights Circuit: This is a simple circuit used to decorate your house by building christmas lights using LEDs. The lights will get ON at night and OFF in morning time.
105	Audio Equalizer Circuit: The circuit is used to change the tune/melody into a different pitch level by devoid of loss in the tune. It is mainly useful to music lovers.
106	Air Flow Detector Circuit: This Air flow detector circuit can be used to detect the flow of air in areas like car engine. It can also be used as temperature detector.
107	150W Power Amplifier Circuit: Here we designed a power amplifier circuit using push pull class AB configuration to derive a power of 150W to drive a load of 8 Ohms (speaker).
108	7 Segment LED Display Decoder: This is the circuit diagram of display decoder which is used to convert a BCD or binary code into a 7 segment code used to operate a 7 segment LED display.
109	Digital Temperature Sensor: The main principle of this circuit is to display the digital temperature value. These are mainly used in environmental applications.
110	Digital Stopwatch Circuit: This is a simple circuit that displays count from 0 to 59, representing a 60 second time interval. It consists of a 555 timer to produce the clock pulses and two counter ICs to carry out the counting operation.
111	Toy Organ using 555 Timer IC: This is the circuit diagram of simple Toy Piano using 555 Timer IC. It produces different tones or sounds depending on the frequency range.
112	RFID based Attendance System: This simple RFID based attendance system is designed using ATmega8 Microcontroller and is mainly used in educational institutions, industries, etc. where authentication is needed.
113	Low Power Audio Amplifier using 555 Timer: This is a simple low power audio amplification circuit designed using 555 timer. It can be used to develop low power music systems used in vehicles.
114	Interfacing 16X2 LCD to AVR Microcontroller: This is a circuit which helps in interfacing 16X2 LCD with AVR Microcontroller. The Atmega16 belongs to the AVR microcontroller family.
115	Polarity cum Continuity Tester: With the help of this circuit, we can also identify whether the components we are using in our circuit are good or bad before mounting them on the PCB.
116	Reaction Timer Game Circuit: This is a simple and funny game circuit which contains 10 LEDs that are moving in an arbitrary fashion and we have to target a particular LED given by your challenger.
117	Understanding 7805 IC Voltage Regulator: This is a circuit diagram of 7805 IC which is a 5v DC regulated IC. It is very flexible and is employed in many circuits like a voltage regulator.
118	Basic Logic Gates Using NAND Gate: We are all well known that NOT, AND, OR are the basic logic gates. Here we have shown how to design these basic logic gates using one of the universal gates - NAND Gate.
119	Dummy Alarm Circuit: The main principle of the circuit is to flash an LED for every 5 seconds. The circuit consists of 7555 timer IC as main component.
120	Reverse Parking Sensor Circuit: If you are a new driver then it is very difficult to judge the distance while parking the car. Reverse parking sensor circuit solves this problem by indicating the distance with the help of three LED’s. We can easily arrange this system at the back side of the car.
121	Automatic LED Emergency Light Circuit: This is the simple and cost effective automatic emergency light circuit with light sensing. This system charges from main supply and gets activated when main supply is turned OFF. This emergency lamp will work for more than 8 hours.
122	One Transistor Electronic Code Lock System: The main principle of this circuit is that the door lock opens only when the buttons are pressed in an order. The transistor and diode plays a main role in the circuit.
123	Automatic Battery Charger: This charger automatically shut off the charging process when battery attains full charge. This prevents the deep charge of the battery. If the battery voltage is below the 12V, then circuit automatically charges the battery.
124	Light Activated Switch Circuit: The main principle of this circuit is to switch ON the light when the LDR is illuminated. This circuit can be used in security applications like when there is darkness on the LDR, it stops lighting.
125	Remote Operated Spy Robot Circuit: This is a simple spy robot circuit which can be controlled by the remote. The maximum controllable range is 125 meters. It is used to observe the behavior of wild animals where human beings cannot reach.
126	Digital Voltmeter using 8051 Microcontroller: This is a simple digital voltmeter circuit designed using 8051 microcontroller. This circuit measures the input voltage from 0V to 5V. Here, the input voltage should be DC voltage to get the accurate output on LCD.
127	Ultrasonic Rangefinder using 8051: This circuit explains you how to measure the distance using 8051 microcontroller. This ultrasonic range finder system measures the distance up to 2.5 meters at accuracy of 1 cm.
128	Stepper Motor Interfacing with 8051 Microcontroller: The main principle of this circuit is to rotate the stepper motor step wise at a particular step angle. The ULN2003 IC is used to drive the stepper motor as the controller cannot provide current required by the motor.
129	Frequency Counter Circuit: Here we design a simple frequency counter system using two timers and two counters. While one of the Timer IC is used to produce clock signals, the other is used to produce the time limited signal of one second.
130	Interfacing 7 Segment Display to 8051: This article describes you how to interface seven segments to AT89C51 microcontroller. This system displays the digits from 0 to 9 continuously with a predefined delay.
131	LC Meter using 555 Timer: This is a simple LC Meter circuit designed using 555 Timer and 8051 microcontroller. It is mainly used to measure value of a reactive element like a capacitor or an inductor.
132	TV Transmitter Circuit: The main principle of this circuit is to transmit the audio and video signals. Here audio signals are frequency modulated and video signals are PAL modulated. These modulated signals are applied for the antenna.
133	DC Motor Interfacing with 8051 Microcontroller: Here is a simple but very useful circuit in our real life named interfacing DC motor with 8051 microcontroller. It describes you how to control the DC motor using AT89C51 controller.
134	Stun Gun Circuit: This Stun gun circuit is mostly used as a weapon to stun or send shock waves to the target with the intention to weaken or paralyze it.
135	Transistor Intercom Circuit: This transistor intercom circuit is a simple two way intercom circuit which is used for the dual purpose of sending as well as receiving signals.
136	LED Interfacing with 8051: The main principle of this circuit is to interface LEDs to the 8051 family micro controller. Commonly, used LEDs will have voltage drop of 1.7v and current of 10mA to glow at full intensity. This is applied through the output pin of the microcontroller.
137	Wailing Siren Circuit: The main principle of this circuit is to produce a wailing siren. The 555 timer IC is operated in astable mode. When the switch is pressed, speaker produces high pitch siren and when it is released, its pitch decreases and is switched off after 30 seconds.
138	Audio Tone Control Circuit: This article explains you how to design an audio tone control circuit with the gain of around 25. This design needs less number of components and it is cost effective.
139	FM Remote Encoder/Decoder Circuit: This is a simple post which shows you how to design FM remote encoder and decoder circuit using RF600E and RF600D ICs. This pair of encoder and decoder ICs establishes the communication with high level security. The operating voltage of these ICs is from 2V to 6.6V DC.
140	Wireless Mobile Battery Charger Circuit: This circuit mainly works on the principle of mutual inductance. This circuit may be used as wireless power transfer circuit, wireless mobile charger circuit, wireless battery charger circuit, etc.
141	Battery Level Indicator: This article explains you how design battery level indicator. You can use this circuit to check car battery or inverter. So by using this circuit, we can increase the lifetime of battery.
142	FM Radio Circuit: FM Radio circuit is the simple circuit that can be tuned to the required frequency locally. This article describes the circuit of FM radio circuit. This is a pocket sized radio circuit.
143	LED Lamp Circuit using USB Port: This is a simple USB LED Light circuit which produces an output of 5v. It may be used as emergency light and also as a reading lamp.
144	Interfacing GPS with 8051 Microcontroller: In this interfacing of GPS with 8051 circuit, GPS module calculates the position by reading the signals that are transmitted by satellites.
145	How to Interface Real Time Clock with PIC18F: Get an idea about RTC, PIC Microcontroller pin diagram and how to interface RTC with PIC18F. RTC is an integrated circuit which keeps track of current time.
146	Random Number Generator using 8051: This circuit helps to generate a random number in between 0 to 100 when push button is pressed and it may be used in the games like monopoly, snake ladder.
147	Active Audio Crossover Circuit: Audio crossover is an electronic filter used in audio applications to send the appropriate signal to the speakers or drivers. This circuit is used in HiFi audio systems to separate the frequency bands from audio signal.
148	IR Audio Link Circuit: This simple IR audio link circuit is used to transmit audio signals wirelessly. This IR audio link is able transmit audio signals up to 4 meters.
149	Cellphone Controlled Home Appliances: This mobile controlled home automation system is designed without using microcontroller. We can also control a robot using this technology by making some modifications.
150	Variable Voltage Power Supply: This helps to design a variable power supply circuit which will provide 0 to 28V at 6 to 8 amps. It can be used in various power amplifiers and oscillators to provide DC supply.
151	Digital Clock using 8051: This circuit displays the time on LCD. For this clock, we can set the time at any instant. Here the clock works in 24 hour mode and the RTC chip is configured by programming 8051 controller.
152	GSM Interfacing with 8051: The main principle of this circuit is to interface a GSM modem with the microcontroller. The microcontroller used is AT89C51 microcontroller.
153	Multi Channel Audio Mixer Circuit: This audio mixing circuit has 2 MIC inputs and 2 line inputs. If you want to increase the input channels according to the application then add same circuit in parallel with the existing circuit.
154	Puff to OFF LED Circuit: The main principle of the circuit is to turn off the LED by a puff. The puff applied to the mic is converted into a voltage whose value is very small. This voltage is amplified and applied to the circuit in order to make the led turn off.
155	Biometric Attendance System: The main aim of this circuit is to take the attendance using biometric method and display when requested. This can be used in educational institutions, industries, etc.
156	Light Activated Alarm Circuit: The main principle of this circuit is to produce sound depending on the light intensity falling on the circuit. As the light intensity falling on the circuit increases, it produces pulses with more duration and thus producing more sound. The main part of the circuit is 555 timer IC.
157	Electronic Eye Controlled Security System: This is a simple electronic eye controlled security system circuit designed using 7805 voltage regulator and LDR. It is used in security applications.
158	USB Sound Card Circuit: This USB sound card circuit is a device which allows an embedded system to create and record real and high quality sound. Read this post for more details.
159	10 LED VU Meter Circuit: VU Meters are used in many applications like discotheques to measure the level of audio signals. Here is the circuit diagram and working of LED VU Meter.
160	Hi-Fi Dx Bass Circuit: This Hi-Fi Dx Bass Circuit describes the design, principle and operation of a two stage bass boosting circuit using simple high and low pass filters.
161	Wireless Electronic Notice Board using GSM: This wireless electronic notice board using GSM Technology and microcontroller circuit is used to display the data on LCD whatever we sent from the mobile.
162	Working of light dependent resistor
163	Wireless Remote to Control 255 Different Appliances Individually
164	Wireless motor control through RF
165	Wireless message Communication Between Two Computers
166	Wireless Electronic Notice Board Using GSM
167	Wireless Control Of Robotic Arm
168	Wireless Audio Transmitter for TV
169	Water Tank Overflow Alarm
170	Water Sensor Circuit
171	War Field Spying Robot with Night Vision Wireless Camera
172	Voltage Doubler Circuit Using IC 4049
173	Voltage boost by using a resistor with 78XX
174	Voice Controlled WheelChair
175	Visually Camouflaged Vehicles for Military Purposes
176	Visual Monitoring and Alerting System for Restricted Areas
177	Vision Operated Home Automation For the Physically Disabled
178	Video Activated Relay to Control the Load
179	Vibration Alert System for the Deaf
180	Velocity Detector Using Ultrasonic Means
181	Vehicle Indicator
182	Variable power supply and charger with emergency light
183	Using TV Remote as a Cordless Mouse for the Computer
184	User Defined String Display and Marquee Scrolling using LED Array
185	UPFC Unified Power Factor Control
186	Unique Office Communication System Using RF
187	Understanding Decade Counter CD4017
188	Underground Cable Fault Distance Locator
189	UM3561 IC Based Security Alarm
190	Ultra Fast Acting Electronic Circuit Breaker
191	Turn ON at Night Light Controller with Single Sensor Ambiguity Elimination
192	Tsunami Detection and Social Broadcast System
193	Transistor based Security Alarm
194	Transistor Based Secret Bell
195	Transistor as audio amplifier
196	Transformerless Low Loss DC Converter
197	Touch Screen Based Remote Controlled Robotic Vehicle for Stores Management
198	Touch Screen Based Industrial Load Switching
199	Touch Screen Based Home Automation System
200	Touch Controlled Load Switch
201	Tone generator Circuit Diagram
202	Toggle switch using CD4017
203	Toggle flip flop using CD4013
204	Timer Circuit using IC CD 4060
205	Timer Circuit using IC 4026
206	Timer Based Code Lock
207	Timed Switch With User Defined ON and OFF Intervals
208	Time Delay Based Relay Operated Load
209	Thyristor Power Control by IR Remote
210	Thyristor Controlled Power for Induction Motor
211	Thumb Sized Adjustable Voltage Step Up Circuit
212	Three Phase Solid State Relay with ZVS
213	Three Phase Fault Analysis with Auto Reset on Temporary Fault and Permanent Trip Otherwise
214	Thermistor Based Temperature Control
215	Theft Intimation of Vehicle Over SMS to Owner Who Can Stop the Engine Remotely
216	Text to Speech Conversion For Indian Languages
217	Temperature Broadcaster to Twitter Using Arduino Ethernet Interface
218	Tampered Energy Meter Information Conveyed to Concerned Authority by Wireless Communication
219	Synchronized Traffic Signals at Various Junctions Using PIC Microcontroller
220	SVPWM Space Vector Pulse Width Modulation
221	Suitcase Security Alarm
222	Step Up 6 Volt DC to 10 Volt DC Using 555 Timer
223	Stamp Value Calculator for Postage Needs
224	Staircase Light That Turns ON and OFF Automatically When Required
225	Spell Effect Sign Display Circuit
226	Speed Synchronization of Multiple Motors in Industries
227	Speed Checker to Detect Rash Driving on Highways
228	Sound Operated Switch
229	Sound Operated LED
230	Sound Generation using 555
231	Sound generation in audio range
232	Solar Powered LED Street Light with Auto Intensity Control
233	Solar Powered Auto irrigation System
234	Solar Power Charge Controller
235	Solar mobile phone charger circuit
236	Solar Energy Measurement System
237	Smooth Start of a Single Phase Induction Motor
238	Sleep Sensing and Alerting System for Drivers
239	Single Wheeled Self Balancing Bot
240	Single switch motor on/off.. Clockwise/anticlockwise
241	Sine Pulse Width Modulation (SPWM)
242	Simple AC to DC converter using bridge rectifier
243	Short Range Ultrasonic Radar With Distance Measuring Capabilities
244	Shadow Counter Solar Powered Long Range Communication System using Microwave Devices
245	Shadow Alarm using LDR
246	Self Switching Power Supply
247	Seismic sensor
248	Security System With User Changeable Password
249	Security System Using Smartcard Technology
250	Security Alarm for Doors, Almirah, cupboards using Opam
251	Secure room access system
252	Secret Code Enabled Secure Communication Using RF Technology
253	SCADA (Supervisory Control & Data Acquisition) for Remote Industrial Plant
254	Safety Alarm Circuit
255	RFID security access control system
256	RFID Based Passport Details
257	RFID Based Paid Car Parking
258	RFID Based Door Access Control
259	RFID Based Device Control and Authentication Using PIC Microcontroller
260	RF Electrically Directional Antenna Based Tracking System
261	RF Controlled Robotic Vehicle With Laser Beam Arrangement
262	RF Controlled Hovercraft
263	RF based Wireless Remote Control
264	RF based Intruder Alarm
265	RF Based Home Automation System
266	RF based Fire Alarm (Overheat Alarm)
267	Remote Tester Circuit
268	Remote Controlled Toy Car
269	Remote Control For Home Appliances
270	Reminder Alarm
271	Relay operation using Darlington Pair
272	Relay control through mic
273	Relay control by sound
274	Relay activation using TSOP 1738
275	Refrigerator Door Alarm
276	Raspberry Based Home Automation
277	Random Number Generator Using 7 Segment Display
278	Railway Track Security System
279	Railway Level Crossing Gate Control through SMS by the Station Master or the Driver
280	Quadracopter with Video transmission Ability
281	Quadracopter with Six Degrees of Freedom and Obstacle Avoidance Built in
282	Pulse Counter Fed with Infrared Pulses
283	Programmable Switching Control for Industrial Automation in Repetitive Nature of Work
284	Programmable Load Shedding Time Management for Utility Department
285	Programmable Energy Meter for Electrical Load Survey
286	Programmable AC Power Control
287	Pre-programmed Digital Scrolling Message System
288	Predefined Speed Control of BLDC Motor
289	Precision Current Source With Keypad interface to Select the current
290	Precise Illumination Control of Lamp
291	Precise Digital Temperature Control
292	Pre Stampede Monitoring and Alarm System
293	Pre Set Off Timer
294	Power failure alarm
295	Post Encryption Data Scrambling For Maximum Data Security random order
296	Portable Programmable Medication Reminder
297	Porch Light (Auto Turn Off Light) Circuit Diagram
298	Pocket CRO using Android
299	Pin-Pong Ball Board for Eye Catching Marketing
300	Piezo sensor as output
301	Piezo sensor as input
302	Pick N Place with Soft Catching Gripper
303	Phase Sequence Checker for Three Phase Supply
304	Phase Preserving Image Denoising for Maximum Noise Removal
305	Periodically Turning On & Off Mosquito Repellent Circuit Diagram
306	PC Temperature Controller
307	PC Controlled Scrolling Message Display for Notice Board
308	PC Based Wireless Appliance Control
309	PC Based Electrical Load Control
310	Password Based Circuit Breaker
311	Parked Vehicle Indicator
312	Parallel Telephone Lines with Security System
313	Parallel Port Based Home Automation on Linux
314	Panic Sensing and Spontaneous Stabilization System for Cars to avoid Accidents
315	Overheat/Overcooling circuit breaker
316	Over Voltage or Under Voltage Tripping Mechanism
317	Optimum Energy Management System
318	Opamp as comparator
319	Obstacle Avoidance Robotic Vehicle
320	Object Detection by Ultrasonic Means
321	Object Counter with 7 Segment Display
322	Number Guessing Game
323	Notepad Lamp
324	Non inverting amplifier
325	Night Lamp with Timer for Stairs
326	Networking of Multiple Microcontrollers
327	Negative supply using 555 IC
328	NE 555 Timer based Automatic Headlight
329	Music (Data) transfer by IR
330	Multi-Utility Flashing Light
331	Multitone Generator Circuit
332	Multipurpose Timer With Musical Alarm
333	Multimeter Using Android Smartphone
334	Multi Color Lighting
335	Movement Sensed Automatic Door Opening System
336	Motion Detector
337	Mobile Phone Sniffer With Over 10 Meter Range Using An Ultrasonic Device as Antenna
338	Minimizing Penalty in Industrial Power Consumption by Engaging APFC Unit
339	Miniature Photonic Rat Bot
340	Miniature Disguised Location Transmitter for Military Spying
341	Military Grade Video based Steganography
342	Microscope Using A Smartphone
343	Metal Detector Robotic Vehicle
344	MATLAB based Landscape Surveillance System
345	Magic Eye using 555 Timer IC
346	Magic Eye Circuit Using 4049 IC
347	Low pass filter
348	Low Cost Touch Screen For Instant Drawing And Presentations
349	Long range IR
350	Long Range FM Transmitter with Audio Modulation
351	Location Mapping Ariel Vehicle
352	Location Mapping and Routing System for the Blind With GPS Support
353	Location Broadcaster Using Arduino Ethernet Interface
354	Liquid level Alarm
355	Lighting Controller Counts How Many People are in a Room
356	Light sensor using photodiode
357	Light detector
358	Light dependent frequency variation using LDR
359	Life Cycle Testing of Electrical Loads by Down Counter
360	LED Lamp Using CA3140 IC
361	LED Based Pendulum Circuit
362	LDR Based Automatic Lamp
363	Lamp Life Extender by ZVS (Zero Voltage Switching)
364	IR Obstacle Detection to Actuate Load
365	IR Controlled Robotic Vehicle
366	Invisible Image Watermarking in Python
367	Inverting amplifier with signal feedback
368	Inverting amplifier using 741
369	Interfacing 4026 with 7 segment display
370	Intelligent Bot Network for Area Monitoring and reporting
371	Integrated Energy Management System Based on GSM Protocol with Acknowledge
372	Infrared (IR) sensor
373	Industrial Temperature Controller
374	Industrial Power Control by Integral Cycle Switching without Generating Harmonics
375	Industrial Battery Charger by Thyristor Firing Angle Control
376	Induction Motor Protection System
377	Incoming Phone Ring Light Flasher
378	Image Watermarking Using Python
379	IC555 based Multicolor LED Lamp Circuit Diagram
380	IC 555 Based Message Display Circuit
381	Humidity Detector Circuit
382	Home Automation Using Digital Control
383	Hit the Target Game
384	High Voltage DC Upto 2kv from AC by Using Diode and Capacitors in Voltage Multiplier Circuit
385	High Voltage DC by Marx Generator Principles
386	Hidden Active Cell Phone Detector
387	H-bridge using transistor
388	Hardware Level Bit tracing and Data Interpolating Forensic System
389	Hardware Authentication Dongle with Fingerprint Recognition
390	GSM Based Monthly Energy Meter Billing via SMS
391	GSM Based Energy Meter Reading with Load Control
392	GPS enabled Quadracopter
393	Gesture Operated Wheel Chair
394	Generating time delay with 555 IC
395	Full range centigrade temperature sensor
396	Frequency Counter Using Smartphone
397	Four Quadrant DC Motor Speed Control with Microcontroller
398	Four Quadrant DC Motor Control without Microcontroller
399	Flip Flop based Staircase Switch
400	Flash Memory with Self Destroy Master Lock
401	Flash Flood Intimation Over GSM Network
402	Fixed voltage power supply
403	Fire Powered Mini Portable Power Supply
404	Fire Fighting Robotic Vehicle
405	Finger Print Based Security System
406	Fastest Finger Press Quiz Buzzer
407	FACTs by SVC (flexible ac transmission)
408	FACTs (flexible ac transmission) by TSR
409	Facebook Connected Arduino And Intelligent Event Reporting
410	Fabrics That Generate Energy using Dye Based Solar Cells
411	Electronic Timer Circuit
412	Electronic Thermometer for Beverage Temperature Measurement
413	Electronic Soft Start for 3 Phase Induction Motor
414	Electronic Number Game
415	Electronic Notepad
416	Electronic Nose to Indicate gas Leakage in Underground Mines and Industries
417	Electronic Eye Controlled Security System
418	Electronic Dog to Sense The Proximity of a Specific Purpose
419	Electronic Code Locking System
420	Electronic alarm for cash box, lockers
421	Electromagnetic Climbing Robots for Industries
422	Easy to Use Automatic Light Controller to Turn ON Lights In Dark
423	Dual converter Using Thyristors
424	DTMF Decoder
425	DTMF Based Load Control System
426	DTMF Based Car Lock System
427	DNA Based Mathematical Calculator
428	Distance Measurement by Ultrasonic Sensor
429	Display System used in Restaurant
430	Display of Dialed Telephone Numbers on Seven Segment Displays
431	Dish Positioning Control by IR Remote
432	Discotheque Light Stroboscopic Flasher
433	Differential amplifier
434	Detecting Power Grid Synchronization Failure on Sensing Frequency or Voltage Beyond Acceptable Range
435	Darkness Detector Alarm
436	Cyclo Converter Using Thyristors
437	Continuous Speech to Text Conversion for Indian Languages
438	Continuous Speech Processing Using Python
439	Contactless Liquid Level Controller
440	Comprehensive Threat Detection for Offices
441	Combinatorial Digital Circuit Logic Determining Device
442	Color distinguished using LDR/Color sensor using LDR
443	Coin Toss/Flip Simulator Circuit
444	Closed Loop Control for a Brushless DC Motor to Run at the Exactly Entered Speed
445	Clock with LED pendulum with tick tock sound
446	Cell Phone Operated Land Rover
447	Cell Phone Based DTMF Controlled Garage Door Opening System
448	CD4049 Based LED torch
449	CD4001 IC based Lighting System
450	CD 4060IC based Message Display Circuit
451	CD 4060 Based Security Alarm
452	CD 4027 Based Emergency Lighting System
453	CD 4013 Based Two Way Switch
454	CD 4013 based Sound Sensing Module
455	Car Reverse Horn
456	Camouflaged Voice Recording and Transmitting System
457	Burglar alarm based Home Security System
458	Bluetooth Controlled Robot
459	BLDC Motor Speed Control with RPM Display
460	bidirectional Rotation of an Induction Motor with a Remote Control Device
461	Beacon Flasher Using Microcontroller
462	Bathroom Light Off Timer
463	Background Interpolation for Selective Image Cancellation
464	AVR based Heart Rate Monitoring System With Health level Indicator
465	Automatic Wireless Health Monitoring System in Hospitals for Patients
466	Automatic Wash Basin Tap Controller
467	Automatic Vehicle Image Capturing When Overriding traffic lights
468	Automatic Threshold Detection System for Phase Preserving Image Denoising
469	Automatic Surveillance Camera Panning System from PC
470	Automatic Star Delta Starter Using Relays and Adjustable Electronic Timer for Induction Motor
471	Automatic Speed Regulation Depending On Incoming Vehicle On High Ways (Fuel Injection)
472	Automatic Solar Tracker
473	Automatic solar street light controller
474	Automatic Road Level Detection And Alerting System for Cars
475	Automatic Power OFF timer for CD player
476	Automatic light/dark indicator
477	Automatic Light Lamp with Morning Alarm
478	Automatic Light Beam Shifting Of Vehicles On High Ways
479	Automatic Heat Detector
480	Automatic Fan Speed Regulator
481	Automatic Exhaust Fan Control Coupled To Gas Leak Detection
482	Automatic Elevator Light and Fan Controller
483	Automatic Dialing to Any Telephone Using I2C Protocol on Detecting Burglary
484	Automated Vehicle Identification and Toll-Pass System.
485	Automated Traffic Signal Controller
486	Automated Car Parking System
487	Auto turn off battery charger
488	Auto Selection of Any Available Phase, in 3 Phase Supply System
489	Auto Power Supply Control from 4 Different Sources: Solar, Mains, Generator & Inverter to Ensure No Break Power
490	Auto Metro Train to Shuttle Between Stations
491	Auto charging grinding machine with solar power
492	Auto Braking System For Cars Detecting Momentum and Road Irregularities
493	Audio Amplifier using Opamp
494	ATmega644 JTAG Debugger
495	Ariel Red Herrings to Mislead Missile Tracking Systems
496	Arduino Ethernet Interface for Industrial Automation
497	Arduino Based World Intelligent Event Detection and Alert System with Network Interface
498	Arduino based Waveform Generator For Electronics Laboratory
499	Arduino Based Swarm Bots
500	Arduino Based Online Database Interfacing
501	Arduino Based Earthquake Detection Social Network Broadcast system
502	Anti Theft Alarm for Bikes
503	Android Controlled Wheel Chair for the Physically Handicapped
504	Android Based Waveform Generator
505	Android Based Waveform Analyser
506	Amplifier for Musical ICs
507	AES256 bit Highly Encrypted Image Steganography
508	AES128 Encrypted hardware Lock Using AVR ATMEGA-16
509	Active high trigger for 555 in monostable mode
510	Accident Detection and Avoidance System Using Doppler Radar Interfaced with ATMEGA16
511	A Swarm of Mutually Interacting Metal Detecting Robots For Scanning the Area
512	A Multiple Bots Operated with a Single Base Station
513	90 Second Timer
514	555 Timer As Amplifier
515	4 Player Quiz Buzzer
516	3D Notice Board using LED Cube
517	2 to 4 Amp arduino Based Motor Shield

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