RackPi Raspberry Pi (2B / 3B / 3B+ / 4B) Rack Shield 19' 2U with OLED & Power Switch

EDIT8 Completely reworked the OLED software part to make it work with the newest Raspberry Pi OS Buster and Python3 thank you Dragor for the hints Now it gets CPU and memory information from psutil it seems to give more accurate information ...