RGB LED Color Mixing & Crossfades – A Quick Primer
When you want beautifully smoother color transitions, a better way to do it is to try HSL or HSV rather than just driving LEDs via RGB colors. So, this little post is about controlling RGB […]
Automatic Shutdown Circuit for Arduino (v1)
Some time ago I had posted a couple of Arduino projects that work in conjunction with external power supply circuits. If you have not already got those ideas yet, you may simply go through the […]
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 […]
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 […]
Arduino NeoPixel LED Light Bar
As an active electronics hobbyists, I get to see a lot of applications for NeoPixel LEDs. In fact, this new breed of smart LEDs is great for a large number of fabulous hobby projects that […]
Arduino Digital Start/Stop Power Switch Box
Lately, I started thinking about a digital start/stop power switch box. Sure, I could buy one easily but where is the fun in that? In this post, you will find an outline of that small […]
Pro Mini Pull-Pin Alarm
Here you can find the project details of a simple and low-cost pull-pin security alarm. While travelling, rig the alarm unit to your luggage using the alarm security cable. If so, when somebody tries remove […]
Laser Monkey Scarer v1
There has been a drastic and steep increase in the number of monkeys coming into my backyard over the last few months. Below you can see a shot taken by my surveillance camera. So, naturally […]
Pro Mini Beacon Light
This is an updated version of an old project that was published in EFY Magazine (print) 21 years ago! Now you can see that article here https://www.electronicsforu.com/electronics-projects/solidstate-signal-lamp This time I’m using a minuscule microcontroller to […]
Arduino Optical/Light Theremin – Make it Yourself!
The theremin is an electronic musical instrument with two metal rods (antennas) used to control pitch and amplitude by the human operator using hand gestures. The left rod (a horizontal hoop) reduces the amplitude as […]