Here’s the simple circuit of an ultra-sensitive knock sensor for microcontroller-based...
Electronic Circuits
In this section you will learn and build simple electronic circuits projects. You will make interesting analog electronic circuits useful in daily life. Moreover, you will know electronic circuit design using circuit elements.
The circuits include home made electronic circuits, hobbyist circuits and prototypes.
Audio Signal Injector
Audio signal injector is a must to have little tool for troubleshooting audio circuits. Connecting...
Morse Code Practice Oscillator
I have received numerous requests for a simple, cheap and entry-level ham radio world project and...
EL Wire Lamp Driver/Inverter
Aim of this article is to provide a simple circuit to drive EL (Electro Luminescent) components...
USB Mug Warmer
How to build a USB Mug Warmer? It’s easy if you have a little skill and patience! This...
Simple Crystal Tester
A budding electronics hobbyist often needs to pick crystals of right frequency for homebrew...
Electric Aroma Burner/Diffuser
Aroma burners/diffusers let the air around you deliver revitalizing and refreshing fragrance to...
Generic 2A USB Car Charger – DIY
This time I’m going to show you how to build an inexpensive yet very useful generic 2A USB...
Simple Neon Glow Bulb Tester
Neon glow bulb is a nostalgic decorate lamp everybody seems to love. A small version is used still...
Poor man’s Door Video Security Camera
This article describes a basic idea that can be used to build your own simple video security...