After finishing the RGB LED cube, I had some LEDs over and something had to be done with them. After some consideration, I decided to...

After hearing about the HC-12 operating distance over a kilometer, I wanted to test it by myself. What kind of information one sends is...

Simple Raspberry camera that utilizes a thermal printer

It is a USB charger that turn complacently off after 3.5 hours. After one presses the power button (the red one) a relay is turned ON and...

A simple 3d printed Magic Wand. The images are not very good, nevertheless the school children found it funny.