The PiCAN is a compact, USB drive shaped USB to CAN bus adapter, primarily intended for 3D printers running Klipper firmware.
PiCAN is an alternative to other USB to CANbus adapters such as the BTT U2C designed to be as compact as possible for use in machines where space is limited. eg. Voron 0 etc.
Instructions – Firmware:
- Download the firmware.
- Connect the PiCAN to your PC while holding down the BOOT button on the PiCAN.
- Download and install STM32Cube Programmer. (Do not download the latest version, it is buggy)
USB on the selector in top right of the program (below
Not connected). Click the refresh button next to the port selector. Select
USB1 and click connect.
+ next to
Device Memory, and select
Open File. Select the downloaded firmware file. Click
Download. Firmware will be flashed.
For Klipper CAN instructions, follow the official Klipper docs.
Make sure your Raspberry Pi and your CAN devices have the GNDs connected. If they are powered from the same source, they should already be connected. If unsure use your multimeter’s continuity mode to test.
For more information and printable files please visit the official Github repository here: