Webcam Servo Sweep (v1)
A few weeks ago, while working on another project, someone asked me to build a simple sweeping system for a tiny webcam. I set it aside for the next day and built a webcam servo […]
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 […]
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 Traffic Lights (v2) – Crosswalk Button
I finally got around to testing this concept – adding a crosswalk button to the previously published Arduino Traffic Lights project I must admit, I was surprised to find a compact traffic light controller module […]
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 […]
Arduino Touch Sensor/Capacitive Proximity Sensor
A capacitive proximity sensor is a non-contact device that can detect the presence or absence of an object in its close vicinity. It utilizes the electrical property of capacitance and the change of capacitance based […]
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 […]
Quick OLED Thermometer v1
After getting my new soldering iron tip thermometer, I got inspired by that idea and decided to design a quick digital thermometer for general use. By the way, the soldering iron tip thermometer is an […]