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.
Arduino Based Programmable Digital Data Display
LCDs are widely used in applications like token-display machines in smalls and supermarkets, order number displays in restaurants and café, and so on. The...
7×5 LED Matrix Using Arduino
Presented here is a simple 7x5 LED matrix circuit vriven by Arduino Uno (Arduino LED). It can be used to display your name or...
Simplify Solid-State Lighting Dimmer Design
Solid-state lighting is rapidly becoming the most popular lighting option for a broad range of applications. With the U.S. government's mandate to save energy,...
Make Your Own Air Quality Monitoring Device!
Air pollution and concern about air quality is not something new. Complaints were recorded even in the 13th century when coal was first used...
Speed Checker for Highways
While driving on highways, motorists should not exceed the maximum speed limit permitted for their vehicle. However, accidents keep occurring due to speed violations...
Long-range Burglar Alarm Using Laser Torch
Burglar alarm using laser torches, normally work in darkness only. But this long-range photoelectric alarm can work reliably in daytime also to warn you...
Application Of Ultra-Low-Power Converters In The IoT
It is predicted that there will soon be 25 billion permanently-connected sensors to implement the Internet of Things (IoT) in real time. But the...
0-50V Variable Power Supply Using LM317
Presented here is a 0-50V, 1A variable power supply that has been designed using positive-adjustable voltage regulator LM317 IC. This IC normally generates voltages...
Wireless Water Level Indicator Without MCU
A wired water-level indicator uses many wires, whose resistance increases as their length increases. A wireless water level indicator using microcontroller (MCU) is costly...
Arduino-Based FM Receiver
This project is an FM receiver circuit radio based on Philips TEA5767 digital radio-receiver module. The radio receiver uses I2C interface with Arduino UNO...
RF-based Dual mode Robot
Here is a dual-mode robot that can be operated manually using an RF-based remote control and can also move automatically avoiding all the obstacles....
PC Based DC Motor Speed Controller
This PC based DC motor speed controller circuit allows you to control the speed of a DC motor (in eight levels) from your PC’s...
Make Your Own USB Data Acquisition System
Presented here is a USB data acquisition system that can be used to interface six sensors and four digital-to-analogue channels. The acquired voltage levels...
Raspberry Pi Based SMS Server
Until recently, for sending an SMS we had to use third-party services from the Internet. We had to log on to a third-party server,...
Automatic USB-Controlled Power Switch
Almost all electronic gadgets now come with one or more USB ports. You can use the USB port as an automatic switch to control...
Door-Opening Alarm Using Hall Sensor
This simple door opening alarm using hall sensor produces sound when someone opens the door. The circuit can be installed at a workshop, office...
Wireless Baby Monitor Circuit
This wireless baby monitor circuit using FM is designed to operate at a frequency of 100MHz. Its range of transmission is more than 100...
Programmable Power Supply With TL431
TL431 and LM431 are relatively low-noise, stable and low-cost shunt regulators. These can be used to build all sorts of power supplies including programmable...