Skip to main content

TX1 to PX4 Connections

33 seconds

  • By default, there are two connections from the TX1 to the PX4 enabled.
    • /dev/ttyUSB1 on the TX1 goes to a 57600 baud UART on PX4 device /dev/ttyS1
      • This is used as a Qgroundcontrol channel by default.
    • /dev/ttyTHS2 on the TX1 goes to a 921600 baud UART on PX4 device /dev/ttyS2
      • This is used by default for tealflightd.service on the TX1
      • To use this for other processes, disable tealflightd.service with “sudo systemctl disable tealflightd.service”
  • By default, updating PX4 is done through the USB, but the mavlink USB stream is turned off on our build of PX4 to conserve RAM
    • This connects to /dev/ttyACM0 on the TX1

Was this article helpful?