I built these Framework Expansion Card devices

3.3V UART Framework Expansion Card

Framework Expansion Card

UART interace expansion card for Framework computer.

5.0V UART Framework Expansion Card

Framework Expansion Card

UART interace expansion card for Framework computer.

Cananka Framework Expansion Card

Framework Expansion Card

USB to CAN bus interface.

OLED Framework Expansion Card

Framework Expansion Card

OLED I2C interace expansion card for Framework computer.

RS-232 Framework Expansion Card

Framework Expansion Card

RS-232 expansion card for Framework computer.

RS-485 Framework Expansion Card

Framework Expansion Card

RS-485 interace expansion card for Framework computer.