Getting started connecting to Telem 2 over UART

Blue Robotics Software
3

Hi @cmarq,

I’ve edited your post to include a code block, so it’s easier to read and understand. You can read about that and more in the How to use the Blue Robotics Forums post :slight_smile:

You don’t seem to have posted your full code, but from what you’ve provided my main guesses are

  1. You’re trying to connect with mavlink.mavlink_connection instead of mavutil.mavlink_connection
  2. You haven’t specified the baudrate you want to connect with, so it’s using Pymavlink’s default of 115200, which won’t work when the port is set to 57600
    → try
    master = mavutil.mavlink_connection("/dev/ttyTHS1", baud=57600)
  3. Perhaps the "/dev/ttyTHS1" device is incorrect
    → you may need to try listing the available devices on your Jetson Nano in case the Pixhawk is showing up at a different one, assuming that’s possible
  4. You may need to send a ping or heartbeat message before it will send messages back
    I don’t expect this is a requirement, but it likely doesn’t hurt to try if nothing else is working

Good that you’ve managed to also find a workaround, in case it doesn’t work to directly use the UART port :slight_smile:

1 Like