Can use RP2040?

[spectrespc]

Can use RP2040? STMs have become very expensive :(
https://jlcpcb.com/parts/componentSearch?isSearch=true&searchTxt=rp2040

[bondus]

The major stopper is that the RP2040 does not have CAN bus.
It should be possible to implement using the PIOs, I was hoping the community would have done that already.
Or possibly use an external CAN controller over SPI bus

[wattsie]

Ill just leave these here for reference.
The MCP2518FD is like $2aud on digikey
https://kentindell.github.io/2021/02/16/three-pico-boards/
https://www.cnx-software.com/2021/12/15/canbed-raspberry-pi-rp2040-board-supports-can-bus-obd-ii-protocol/
Cheers.