Handheld Engraving Pen & A Little Hack
A handheld engraving pen can be used to create permanent and precise designs in hard surfaces like plastic, metal, wood, and the like. Inside the pen, there is a battery and a small electric motor […]
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 […]
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 […]
Infrared Motor Speed Sensor – Refined Primer
A timely review is beneficial to all. So, here’s the long-awaited sequel of my old post about infrared motor speed sensors and motor speed sensor modules. This is the direct link to read that popular […]
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 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 Portable Ultrasonic Distance Meter
After a little bit of research, I discovered that building a portable ultrasonic distance meter using Arduino was indeed a very simple task. I was surprised to discover that integrating a tiny OLED display into […]
Arduino Light up Coaster Ideas (v1)
Now is the time to make something that lights up! As promised in one of my previous posts, I’m sharing some crude design ideas for making your own coaster that wakes up as it listens […]