The budgetcan-fw CAN Bus Card is a community-designed 2x CAN bus expansion card based on the STM32F405 microcontroller and the budgetcan-fw platform. Created by mowoe, it provides two independent CAN interfaces in the Framework expansion card form factor, distinct from the existing Cananka CAN-bus card which uses a PIC18F25K80 and MCP2221A bridge.
The CAN-bus Expansion Card (Cananka) is a community-designed expansion card adding a CAN bus interface to any Framework laptop. Created by Josip Medved (medo64) and first prototyped in March 2022, it uses a PIC18F25K80 microcontroller and an MCP2221A USB-to-UART bridge, supporting SLCAN and SocketCAN.
The RS-485 Expansion Card is a community-designed expansion card adding an RS-485 serial interface to any Framework laptop. Created by Josip Medved (medo64) and published in November 2022, it uses an FTDI FT232RL UART bridge with automatic transmit control and an SP485EN RS-485 transceiver, supporting baud rates up to 3 Mbaud.