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.
Make A Crystal-Locked FM Transmitter
The circuit presented here uses a crystal oscillator and frequency multiplier to generate a highly-stable carrier signal frequency of 96MHz. With 40mW of RF...
Contactless IR Thermometer For COVID-19 Detection
Due to the break out of COVID-19, we need to check our body temperature wherever we go - from hospitals to airports - to...
Build A Universal AC/DC Booster, Audio Amplifier Cum Line Driver
A universal AC/DC booster, audio amplifier and line driver can be used in sensor circuits, audio signal generators, electrical guitars and so on. Most...
Design Your Own Digital Photo Frame
This digital photo frame is designed using Arduino Uno. Smartphones with high-resolution cameras and enhanced features have motivated people to click photos of almost...
Build This IoT-Based Smart Home Controller Using Blynk
Presented here is an Internet of Things (IoT)-based controller for a smart home. This IoT project can be used to control any four home...
Make This Noise Detector For A Noise-Free Zone
‘Please Keep Silence!’ You must have seen this message written in such places as libraries and offices. But some people tend to, intentionally or...
Smart Water Meter To Help Control Water Wastage
Increasing water consumption and wastage is leading to water scarcity. While a large population has no safe drinking water, some people use a lot...
Surround Yourself With Sound From Three-Channel Audio Amplifier
This article presents a simple, low-cost audio amplifier with three channels built around two TEA2025 ICs. The amplifier works from an AC or a...
Stephen Hawking Wheelchair Model Controlled By Eye Motion Part-1
Body paralysis caused by severe neural conditions is one of the most complicated and dreaded things to happen to humans. It makes the daily...
1.5W Power Amplifier
Here we put all the theory to work and present a simple 1.5W power amplifier module that can be easily built with readily available...
Humidity Indicator and Controller
Presented here is a simple humidity controller and indicator. In industries such as textile, the change in moisture content has a direct impact on...
Human-Machine Interface through Electromyography
Electromyography (EMG) is a technique of recording muscular activities by measuring the potential difference across a muscle of interest. EMG signal acquisition is the...
Versatile Audio-Visual Alarm
This circuit uses a NE555 timer IC, some LEDs, a couple of piezo buzzers and a few other components to produce audio-visual effects as...
Alcohol Level Tester
Drunk driving is a big issue. This simple circuit can help prevent accidents by detecting alcohol concentrations. It's simple to use, inexpensive to manufacture,...
Microcontroller Projects: AVR Bootloader Circuit for Trouble-free Programming
Normally, ATMEL’s AVR microcontrollers are programmed using programmers. There are many ways to program the AVR microcontrollers, such as in-system programming, parallel programming and...
Make Your Own Breadboard Switch-Mode Power Supply
Some breadboard power supplies have adjustable voltage linear regulators to control the required output voltages. Efficiency of the linear regulators decrease as output power...
Digital Pressure Gauge
Be it for weather prediction, detecting air flow movement through pipelines or obtaining altitude position with the help of a drone, pressure measurement plays...
Make A Hi-Fi Stereo Audio Amplifier Using LA4601
Here is a simple 4W audio stereo power amplifier using a ten-pin LA4601 IC. Only a few passive components, including ceramic and electrolytic capacitors,...