Nice design by @Izzy_the_Isz:

Electronic Cirtuit Board Menorah for Hannukah
Celebrate The Festival of Lights with this home-designed hand built circuit board Menorah controlled by an Arduino. Limited Run for Hannukah 2020.
Each circuit comes fully assembled and is tested to display a user-adjustable number of lights, and to add a light each time the board is turned on.
