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MEGA COLLECTION OF ELECTRONICS DIY PROJECTS

Every week, we publish 2 to 3 projects, sometimes even more! They range from simple circuits for beginners, to advanced projects that you can use to develop complete innovative products! Most projects have been developed by enthusiasts like you. Some by experts. And, some by our team. Many are tested at EFY Labs, and some are not–but they typically have a proof-of-concept video.

Photo Counter

You can use this photo counter gadget to detect whether somebody opened your cupboard or drawer in your absence. The gadget is small and...

Touch Sensitive Alarm

Security has been a major concern for people for long. Any personal belonging kept out of personal reach is prone to attack and sometimes,...

Emergency Photo Lamp

This emergency photo lamp can be powered either by a rechargeable battery (like 3.6V Ni-Cd) or a non-rechargeable battery (3.0V CR2032). The white LED...

Single-Wire 4×4 Matrix Keypad Using AVR

This tutorial demonstrates a different way of interfacing a 4x4 matrix keypad with ATmega32 AVR microcontroller. Keypad is one of the most important input...

How to Play With Light Using LDR

In electronics, there are many ways to play with light the way you dream. If you are looking for an inexpensive solution, regular light-dependent...

Triple Power Supply From USB

Nowadays, most portable electronic gadgets are powered by USB adaptors. These adaptors have 5V, 1A to 5V, 2.1A output, which is enough to power...

Add-on USB Power Circuit For UPS

Most computer UPS have only 230V output and no USB output. Presented here is a USB power circuit that gives 5V USB output using...

Connected Message Lamps using ESP8266 | IoT Projects

It is not just another Engraved LED lamp that you see on the market nowadays. This is an advanced version of that lamps. In...

Solid State Voltage Stabiliser

In India, we have a large power distribution system with heavy distribution losses and variations in industrial/ domestic load. This results in voltage variations...

Car Stereo Player Circuit

Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful...

1-30 Minute Timer

Using this 30 minute timer circuit you can switch on an appliance for a desired time. The circuit provides selectable time settings of 1,...

Car Fan Speed Controller

Using this fan speed controller circuit you can control the speed of 12V DC fans used in cars. The circuit is built around timer...

Mini UPS System

This mini ups circuit provides an uninterrupted power supply (UPS) to operate 12V, 9V and 5V DC-powered instruments at up to 1A current. The...

Duophone: Multiple Numbers Through One Telephone

This simple circuit of a duophone allows you to access two telephone lines through one telephone set. Each telephone conversation will remain entirely separate...

IR Based Light Control

This IR-based light control circuit turns on the lights at the portico, car parking or other areas when a motorbike or car enters through...

Motion Sensor for Security Light

Here is a motion sensor system based on PIR motion detector module BS1600 (or BS1700) that can be used for security or corridor lighting...

Water Overflow Alarm

This water overflow alarm is built around two BC547 transistors and two 555 timer ICs

Generator Room Light

At night when power fails, one finds it difficult to reach the generator to start it. Here is the circuit for a generator room...
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