Model Rocket Launch Controller
Most commercial model rocket launch controllers available to buy are either expensive or do not have desired features. After a lot of Googling, I found nothing that fits my little budget. Actually, I wanted a […]
Sawtooth Wave & 555 Timer
This guide details how to build a simple sawtooth wave generator using the venerable 555 timer chip that can be used to test some of your homemade circuits and projects. Got any questions? I’m happy […]
Door/Window Knock Sensor – Simple DIY Project Ideas
Recently I came across a dirt-cheap knock sensor module labeled as Keyes KY-031 Knock/ Impact/Hit Sensor. The other day I bought a couple of those modules from an online store. It’s pretty small and easy […]
Audio Induction Loop Receiver (Quirky Ideas)
Little version of the audio induction loop receiver presented here can serve a variety of purposes. It is extremely useful for receiving audio from an audio induction loop transmitter or any other source that generates […]
Poor man’s Dog Silencer/Whistle
Everybody knows that a dog barks to get his/her master’s attention, to alert other dogs, to announce that they’re scared or in danger, and for a variety of other reasons too. However, if your dog […]
Musical Doorbell
How to build a cheap and cheerful musical doorbell using a few electronics parts laying around? I recently planned to try one idea, and this week I had the time for that. Now, I would […]
Mains Resumption Alarm & Emergency Light
The common mains power resumption alarm will activate an internal buzzer in the event of a mains power resumption after a power cut or power interruption. Such a portable alarm can be used in and […]
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 […]