– HF1R0x interface module follows Raspberry Pi Hat specifications (to the extent possible) and comes with embedded EEPROM programmed with Hat identifiers and related information.

The Raspberry Pi 4-based Computer Module is now available for purchase from $25.

This led him to design a custom PCB to interface with one of the less popular items in the Raspberry Pi line: the Compute Module 3. A hardware comparison between the three platforms is available here.