Open-Pi

Attribution: This project will be a derivative of Johanns carrier board the intention is to review that board and release it under a CERN-OHL-P licence

Features

Gigabit Ethernet port
Real Time Clock with 3022 coin cell battery holder
40-pin standard Raspberry Pi GPIO header with mounting holes for Micro-HAT
Hardware watchdog
12V power jack (requires 5.5 x 2.1 mm plug) with integrated buck converters for CM4 (5V) and M.2 slot (3.3V)
HDMI port for audio/ display
2X USB-A ports (driven by internal 4-port USB hub)
Micro SD card slot (works with CM4-LITE only)
M.2 key M slot
2 internal USB ports (driven by internal 4-port USB hub)
2-lane CSI port
2-lane DSI port
Micro-USB-B port for RPI-BOOT (i.e. recovery only)
Fan controller & connector
4-pin “Berg” power connector providing 5V and 12V
2-pin power connector providing 3.3V