Poor man’s Luxury Car Dome Light
If you often drive early in the morning or at night, you spend most of your time in a dark vehicle, and at that time a small interior/dome/cabin light becomes an indispensable widget if you […]
An Eternal LED Scarecrow
Recently, I wanted to try an electronic scarecrow in my lab window to scare off some birds (often nocturnal) that make a lot of noise and dirt. Although there are many options for building one, […]
Self-Lock Delay Switch Module DIY
Self-lock delay switch is a simple timer module that produces a fixed square pulse. It is designed around the 555 timer and uses a tricky negative edge trigger to ‘run and lock’ the timer. The […]
BYO Muddy Water Detector
The goal of this little post is to share an idea to build your own robust mud water detector using readily available inexpensive electronics components. Although unintentional, the sensor component in this design concept is […]
Midget USB LED Lamp – DIY
There is nothing amazing about looking at the design concept of a simple USB LED lamp, I know. But believe me, the midget USB LED lamp presented here has a little power reservoir in the […]
Matchbox Magic Lamp v1
This post is about the construction of a multi-colored matchbox-sized magic lamp for kids using a simple and cheap microcontroller board. The most interesting thing about this build is that it does not require any […]
Mini PCB Drill Speed Controller v1
This post explains how to build a mini PCB drill speed controller using a handful of common components you may already have stocked in your home lab. First off, let me say that this idea […]
Crazy Bomb Timer
In this post, you will find the construction details of a crazy bomb timer that can be built with the help of a handful of common electronics components available everywhere. Well, get ready to entertain […]
Flashing Yellow Gate Light for Automatic Gate/Garage Door
Flashing yellow lights are an essential part of sliding/swing gate and garage door automation systems, since they provide a clear indication that the system is installed and in operation. Thanks to LED technology, the total […]
LED Tap Light/Stick Touch Lamp Mod
This little post is about modifying a standard LED Tap Light/Stick Touch Light to run on the Arduino platform with additional features. Okay, let’s get started! Tap Light? So, what’s a Tap Light? Simply, the […]