I think you have to configure this through raspi-config first, if I'm not mistaken. Otherwise, try changing port on the Pi header to read and write with:
sudo chmod 666 /dev/ttyAMA0
On 8/30/24 10:17, Yann Seznec wrote:
Hello!
I’m hoping to use serial data transmission between a Teensy and a Raspberry Pi using the Pi GPIO pins rather than a USB cable.
I have been using the [comport] object to do this previously over USB Serial, and that works fine. However I have not yet managed to make it work by connecting the TX/RX pins between the Pi and the Teensy.
I am most likely doing something wrong, but before I dig too deep into what that might be I’m wondering if anyone has succeeded with this setup in the past, or is there some specific limitation that makes this not possible?
Many thanks,
Yann
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