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.
Simple Low-Noise Audio Distribution Amplifier
This article describes a low-cost low noise audio distribution amplifier based on hybrid or mixed technology. Input to the amplifier is from low-noise, high-gain npn...
Multifunction Rechargeable Clock
Building clocks are one of the interesting and easiest projects that can be seen among hobbyists and makers. Presented here is a multifunction rechargeable...
Daytime Running Lights Controller
Auto makers have been gradually switching to light emitting diode (LED) lighting for automotive headlamps because of its features such as high efficiency and...
Anti-Theft Alarm for Vehicles
This simple and inexpensive anti-theft alarm circuit for vehicles sounds an alarm simulating a police siren whenever someone attempts theft of your vehicle. The...
Low Cost Dual Channel Active AC Analog Probe
Introduction
When we are experimenting with AM receivers for LW, MW and SW we are in need of high impedance analog probe with low input...
LM1875 Based Simple Amplifier
LM1875 is a low cost and very popular and useful integrated circuit (IC). It is designed to be stable with gain higher than ten....
Transistorized Microphone Preamplifier With Band Pass Filter
Introduction
The signal from most of the microphones should be amplified before to be send to the interconnection cables.
In order to reduce the noise of...
Sound Operated Device Control System
In movies like Ironman and Players, it is shown that appliances are operated by human speech or sound. Similar concept of a sound operated...
Arduino Based RGB Colour Code Generator
Red, green and blue (RGB) are the basic colours for generating various other colours by mixing colours in a particular proportion. This technique is...
Webcam View Illuminator
By setting up a webcam view illuminator over your laptop’s webcam your online conversations can become more enlightening. This clip-on light improves the quality...
GPS Distance Meter
Presented here is a project based on Global Positioning System (GPS) and ATmega328P-PU microcontroller to measure the distance between two points using Haversine formula....
Raspberry Pi As World Webcam Server
While it is not possible to always keep an eye on your home or business while you are away we can make a world...
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...