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.
Power Resumption Alarm and Low Voltage Protector
The low voltage protector circuit described here protects your electrical appliances like AC motors from damage due to low voltage at power-on. It remains...
Night Alert System
Idea of this night alert system came to me one midnight when my pet dog started barking continuously on sensing a moving shadow, perhaps...
USB Power Socket
Today, almost all computers contain logic blocks for implementing a USB port. A USB port, in practice, is capable of delivering more than 100...
Skin Resistance Meter
Human skin offers some resistance to current and voltage. This resistance changes with the emotional state of the body. The skin resistance meter circuit...
Remote Operated Switch
Generally, a bedside master switch is used to switch on lamps both indoors and outdoors when there is a threat of intruder. This remote...
Fully Automatic Emergency Light
This is a circuit for an emergency light that automatically turns on when the supply is gone and turns off when supply resumes. It is rechargeable and stops charging the battery when the battery is full.
PC Timer
Primarily intended for installation into a desktop PC, this versatile PC timer with adjustable time output provides controlled ‘on’ time for PC peripherals like...
Automated Alarm Circuit
Two automated alarm circuits are presented here. One produces bird-chirping sound and the other British police siren tone. Fig.1 shows the circuit of the...
Multipurpose Power Pulser
The idea behind this multipurpose power pulser is very simple. As shown in the circuit (Fig. 1), it uses a low-frequency oscillator to drive...
Midnight Security Light
Most thefts happen after midnight hours when people enter the second phase of sleep called 'paradoxical' sleep. Here is an energy-saving night security light...
Anti-Sleep Alarm for Students
This anti sleep alarm circuit saves both time and electricity for students. It helps to prevent them from dozing off while studying, by sounding...
Password-Protected Bluetooth Remote Control
This password protected bluetooth based remote control operating at 2.4GHz frequency can be used to control robots, home appliances, machines, etc. Here we have...
Simple 8-Bit Computer for Learning
This project helps you build a 8-Bit computer while also providing an insight into the working of an MPU & its construction mechanism.
Computers take...
Efficient Egg Candler
Candling eggs, while they are incubating, is the proven method to test them for fertility. Often, egg candling is done using a light source...
Micro-Solder Pot
To make a great solder joint, component preparation is a must. It is very important to clean component leads, wires and contact surfaces prior...
DC Motor Starter Using Arduino Uno Board
Motor starter reduces the load, torque and current surge of a motor during startup. On starting, the motor takes more than five times the...
Midget Vibration Detector
This article describes a low-cost sensitive midget vibration detector that can interface directly with any microcontroller. The entire circuit operates off a single 5...
Arduino Ping Pong Game
Ping Pong was the first ever video game that reached mass market. For the first time in history, the concept of a “video game”...