It's a Morse code receiver base on processing the light signals.
A scrolling text display, using 294 LEDs to simulate a stock exchange ticker.
A system that gives my bike front and tail lights, a turn signal, and a speedometer, all in a clean and simple design.
A cool 30 x 10 ft light show which includes 2 Arduino Mega boards, a hundred single-color LED strips and some SMPS full of AMPERES.
A physical and portable LED sign in the shape of the Astralis logo.
I created and 3D printed an Avatar Aang Head and put RGB LEDs inside it to make it glow like he is in the Avatar State.
Home Automation: control various home appliances with the help of voice recognition.
A pencil holder that also functions as a musical flashlight or lamp.
Just a fun prototype I made to facilitate Bluetooth-to-Arduino data controls.