HALPI-CM4 Hardware Description
The HALPI computers are based on the following component listed below. The list items link to the respective product documentation.
- Raspberry Pi Compute Module 4 with 4 or 8 GB of RAM, WiFi and no eMMC
- Waveshare CM4-IO-BASE-A Base Board, see also Wiki
- KingSpec M.2 NVMe SSD drive
- SH-RPi v2 Power Management HAT
- Waveshare CM4 3007 Cooling Fan
- Waveshare 2-Channel Isolated CAN HAT for NMEA 2000 connectivity, see also Wiki
- NMEA 2000 Pigtail Connector
- External WiFi antenna (mounted inside the enclosure)
Additionally, several optional accessories can be added to the HALPI-M:
- Waveshare 2-Channel Isolated RS485 HAT for NMEA 0183 connectivity, see also Wiki
- Waveshare MAX-M8Q GNSS HAT for GPS reception, see also Wiki
The HALPI-S does not have space for additional HATs.