The LED circle to decorate you house. It can be programmed as an Arduino Uno using the Arduino software, so you can easily make your own patterns. The LED circle runs from two CR2032 batteries.
Buy 3 kits and you can make 1 red, 1 yellow and 1 green circle. It is also possible to solder the LEDs on the other / back side of the PCB.
Kit contains: 1x PCB (black), 11x red LEDs, 11x yellow LEDs, 11x green LEDs, 1x programmed controller, the other electronic parts, battery is not included.