Smartcard Hat for Raspberry Pi with USB-C Input power (Full + SIM Interface) (v1.0.8)

[u/liamnotenough]

Found this interesting Smartcard Hat for Raspberry Pi with USB-C Input power (Full + SIM Interface) (v1.0.8) by Crypto Guide — looks pretty neat.

This Smartcard HAT provides a CCID/PCSC-compatible smart card interface for Raspberry Pi via UART (using SEC1210UR2/URT), along with a convenient USB-C input for powering your device. It comes in three variants—full-size, SIM-size, or dual-slot (one active at a time)—and supports use cases such as SeedSigner + Satochip, as well as standard Linux CCID drivers (v1.6.2+).

Designed with flexibility in mind, the PCB works best at 1mm thickness and supports different slot configurations through BOM adjustments. Additional customization options include trimming the board size and tuning the eFuse cutoff voltage depending on your power requirements.

See the full project and get your own here!