Common Cathode and Common Anode RGB LEDs are two different kinds of RGB LEDs whose function is same but working is different.

A little tidbit on how to make smooth, step based colour transitions for RGB LEDs in Johnny-Five!

A simple project to show a clock on a wall with just one small laser and a rotating mirror.

WebUSB enabled LOL shield, so anybody can change the text without any Arduino programming knowledge.

Why limit yourself to an angel on top of the tree when you can have an over sized Christmas ornament with 192 RGB LEDs blinking!

How to hack an ikea dioder to make it an IoT device. The project uses the mysensors opensource libraries.

The solar lamp is charged during the day, and they started to pass. Suitable for yards and corridors.