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Intermediate Projects

Ultra-Low-Power Sensor Hub Using nRF24L01 Modules

Presented here is an ATmega328P microcontroller-based ultra low power sensor hub using nRF24L01+ radio frequency (RF) transceiver modules having transmitter and receiver units. The transmitter...

Phone Broadcaster

Here is a simple yet very useful phone broadcaster circuit which can be used to eavesdrop on a telephone conversation. The circuit can also...

Smart Stick Using Arduino Uno: Aiding The Visually Impaired

Obstacle detection is one of the major concerns for a fully or a partially blind person (e.g. person suffering from night-blindness, cataracts, glaucoma, albinism...

How to Assemble Your Own 3D Printer

3D printing, getting popular for making usable objects, is the reverse of traditional machining where material is removed from a block by drilling, cutting,...

Stopwatch Using 7805IC

Most of the laboratories and educational institutions in need of accurate stopwatches for precision time measurement and this kind of devices are rare and...

Electronic Tone Generator System

It would be cool to build an electronic tone generator system yourself. Described here is a small tone generator based on pulse-width modulation (PWM)...

Magnetic Proximity Switch

Here is an interesting circuit for a magnetic proximity switch which can be used in various applications. The circuit, consists of a reed switch...

Cyclic Temperature Heating & Cooling Control System

This project proposes a Peltier element based cyclic thermoelectric heating and cooling system with precise temperature control by using PID controller with microcontroller. In...

Make Your Own Remote Controlled Robot

To control a robot, the signal is usually sent through a wireless system using radio frequency (RF) and infrared (IR). To send an IR...

Arduino based Smartphone Controlled Robot Car

Nowadays smartphones can be used to control a host of electrical and electronic devices including motors, music systems and lights. Here we present an...

Precision Stopwatch

Most laboratories and educational institutions are in need of precision stopwatch for accurate time measurement. This simple DIY project focuses on the construction of...

World’s Smallest IoT project!!!!!

IoT has been trending since long in the field of electronics and communications. Many projects, products are daily made under IoT. In this project...

Generic STM32 board with Arduino

Described here is a simple way to load a program without bootloader. An additional thing needed is a USB to Serial/UART/TTL adapter (3.3V level)....

Accurate Electronic Stopwatch Project

A stopwatch is invaluable for events and time based competitions. And keeping in with today's demand, these are available in very fancy designs and...

Wireless Gate Alarm

This wireless gate alarm uses infrared (IR) and 433MHz RF modules. IR transmitter unit emits 36kHz signal and is fitted on one side of...

DIY Countdown Timer

Sometimes there is a need to switch on or off electrical appliances or gadgets after a predetermined time. The circuit presented here can switch...

Arduino Based Digital IC Tester Using MATLAB

Testing of digital electronic systems generally involves applying a set of test stimuli to inputs of the device-under-test (DUT) and analyzing responses of the...

Short-Range FM Radio Station

This article shows you how to build a small radio station at home and share music with others. The station can also be used...
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