Fishing Light Attractor – DIY
Using light is a common way to trap fish in fishery industry. Attracting fish by using artificial light source is to induce them to form a large shoal at night taking advantage of fish’s photo […]
A Junk box 555 PWM Generator
Often you’ll need a simple pulse width modulation generator circuit to test or run small dc lamps and motors in your electronics projects. There’re ways of creating cheap and practical circuits at home, and today […]
An Isolated 1 Key Touch Pad Project
With this article, I’m trying to share one simple idea on how to build a single-key touch pad sensor/switch using a quick and cheap Chinese module. We can easily build a simple touch sensor using […]
Build Your Quick & Dirty Foam Cutter
Let’s make a quick and dirty foam cutter! Foam is an easy and cheap material for various prototype creations, and cutting the common polystyrene/Styrofoam is easy with a hot wire cutter. Now do it yourself […]
An Easy 555 EC Sensor!
Aware that a particular circuit is needed to measure electrical conductivity (EC) of a liquid. Since the conduction of current through a water solution is mainly dependent on the concentration of dissolved ionic substances such […]
Audio Signal Injector
Audio signal injector is a must to have little tool for troubleshooting audio circuits. Connecting the audio signal injector to the circuit under test you should be able to hear its tone in the speaker […]
EL Wire Lamp Driver/Inverter
Aim of this article is to provide a simple circuit to drive EL (Electro Luminescent) components. The minuscule driver design you can find here will render decent power to lights up a few feet of […]
USB Mug Warmer
How to build a USB Mug Warmer? It’s easy if you have a little skill and patience! This article will help you to build your own USB mug warmer using inexpensive components laying around your […]
Poor man’s Door Video Security Camera
This article describes a basic idea that can be used to build your own simple video security systems such as a door video security camera. In these times you can buy astonishingly cheap Car Rear-View […]
LED Strip & Microcontroller
This is a simple design guide for making your own really nice lighting for your home, office, shop, lab, etc. by using the common and inexpensive LED strips available in various colors. The intent is […]