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Intermediate Projects

Simple Two Way Amplifier For Microphone And Guitars

A self-made audio power amplifier for a guitar or violin should be simple, low-cost and reliable. It is good to have two separate loudspeakers...

Ultrasonic Distance Meter Using Raspberry Pi 2

Ultrasonic ranging module HC-SR04 provides 2cm to 400cm non-contact distance measurement range. Its accuracy can reach ±3mm with a cycle period of 50ms, which...

Diode Tester Using MATLAB Based GUI

Testing of digital or analogue electronic systems typically needs application of a set of test stimuli to the inputs of the device under test...

Memory Design Using Verilog

Presented here is a memory design project using Verilog hardware description language (HDL). This project is simulated using ModelSim software, and the design is...

Intelligent Water Pump Controller with Water-level Display

Most of the circuits for intelligent level controller for water in tanks employ a bunch of wires running between the circuit and the overhead tank,...

Ultrasonic Transmitter and Receiver

Most ultrasonic transmitters and receivers are built around timer IC 555 or complementary metal-oxide semiconductor (CMOS) devices. These devices are preset-controlled variable oscillators. The...

Digital Speedometer

Tachometer with LED display using Arduino GPS-based Speedometer Microcontroller-based Speedometer-Cum-Odometer This digital speedometer displays the speed of the vehicle in kmph. An...

Arduino Based GSM Home Security System

This project is designed using normally-closed reed switches connected to doors and windows and additional passive infrared (PIR) motion sensors to detect movement of...

12V Battery Charger-cum-Variable Power Supply

The 12v battery charger-cum-variable power supply circuit presented here can charge a 12V lead-acid battery of 50Ah to 80Ah (even up to 100Ah) capacity...

Remote-Controlled Smartfan Using AT89C2051

The remote-controlled smartfans available in the market are very expensive and their operating principles are difficult to understand. Here is a simple circuit for...

Wireless Doorbell

Installing a doorbell in an existing building is a difficult task as it involves wiring that can look shabby if not concealed properly. Presented...

Over/Under Voltage Protection of Electrical Appliances

Presented here is an under/over-voltage protection circuit that protects refrigerators as well as other appliances from under & over-voltage. Operational amplifier IC LM324 (IC2)...

Dual Bridge Driver On Expansion Module With L293P For Arduino

The short article describes simple but useful four-channel driver expansion module with L293P for Arduino. The board can be called power shield, motor shield...

Controlling A Robotic Car Through MATLAB GUI

This project presents the implementation of a MATLAB based graphical user interface (GUI) to control the movement of a robotic car. The commands to...

Arduino Projects: RF Controlled Robot

Want to create a remote-controlled robot? It's easier than you think! This Arduino-based robot can be wirelessly controlled from up to 100 metres distant....

Low-Cost PWM Module For Arduino Or Development Kit With MCU

This short article describes a simple circuit capable to convert a TTL/CMOS PMW signal to an analog signal. The circuit can be used as...

Wristband Based GPS Navigation System

GPS and sensor technologies have been evolved over the past decade in the global market of transport and navigation. These technologies lead the world...

Low-Cost Universal Dual Channel Audio Checking And Troubleshooting Tool

Frequently, we are in need to do audio troubleshooting of electrical and electronic components, installations and equipment. E.g. we may need to check, test and evaluate: ...
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