How to communicate between odrive V3.6 and STM32 Nucleo using uart?

Phankon_Pinkham · January 21, 2025, 1:31pm

I want to use the STM32 Nucleo to control the ODrive V3.6 via UART, but I am facing an issue where I cannot directly send commands to the ODrive V3.6. Has anyone had experience with this setup?

solomondg · January 22, 2025, 2:01am

Hi! Have you verified the baudrates are correct? Can you post a picture of your wiring?

Phankon_Pinkham · January 22, 2025, 6:52am

Thank you so much for replying my question.

solomondg · January 22, 2025, 7:31am

Glad I can help! What’s the specific issue here - is the ODrive not returning a response to your command? How are you checking/polling for this?

stephen · March 5, 2025, 8:22am

Dear Solomondg
This is a confused question for me too. what you mean is we can directly use UART port to send ASCII protocol to communicate with the ODrive 3.6 board? if it is true , we can use Serial assistant instead of STM32 NUCLEO BOARD to do so.
Would you please tell me if it is true?
Thanks a lot.
Best regards
Stephen

solomondg · March 5, 2025, 10:38pm

Yes, the ODrive supports communication over UART. You can see the protocol here: ASCII Protocol — ODrive Documentation 0.5.6 documentation

stephen · March 6, 2025, 1:21am

Dear Solomondg
Thanks a lot again.
Best regards
Stephen