Thank you, please inform me if you upload that sample codes.
I have another question, why there is a CAN controller MCP2515 on the extend module? Does not M5STACK include CAN controller?
Failed to use CAN with M5Stack
返信: M5Stack with CAN
I tried the follow library, changed pin to GPIO17/16
But it does not work. I used oscilloscope to check the output from pin GPIO 17/16, There is no any output.
Could someone give me an example code that works, and a picture of connection.