TELEMETRY configuration for Companion Computer

GustavFring · July 2, 2023, 11:48pm

I’ve built X500 v2 with Pixhawk 6c and tried to connect PX4 autopilot with raspberry pi.
Connected to pixhawk 6c telem2 port and raspberry pi using TX, RX, and Gound.
Configured parameter like below.

MAV_1_CONFIG: TELEM 2
MAV_1_FORWARD: Enabled
MAV_1_MODE: Normal
MAV_1_RADIO_CTL: Disabled
MAV_1_RATE: 1200 B/s

But, it gave me timed out.
Connected UART and Holybro TELEMETRY RADIO for test.
and connected successfully.

Could anyone know how to connect to Pixhawk 6C with Raspberry Pi 4?

Thanks in advance.

junwoo0914 · July 4, 2023, 11:00pm

This could be a related article, have you checked it out?

GustavFring · July 5, 2023, 7:07am

Thanks for your reply.
Unfortunately, I couldn’t solve the problem by referencing the post.
I connected Pixhawk 6C and Raspberry Pi 4 via a USB C cable for now.

Sincerely,

junwoo0914 · July 5, 2023, 2:47pm

Hi, sorry I think this is more relevant documentation, could you check it out?

GustavFring · July 5, 2023, 3:28pm

HI,

Thanks for the reply.

Wiring
TELEM2 UART5_TX(Pixhawk 6C) - UART RX(Raspberry Pi 4)
TELEM2 UART5_RX(Pixhawk 6C) - UART TX(Raspberry Pi 4)
TELEM2 GND(Pixhawk 6C) - Ground(Raspberry Pi 4)

PX4 Setup
Use the latest firmware which is PX4 v1.14 (not sure, I’ll check it tomorrow)

Ubuntu Setup on RPi
enable_uart=1
dtoverlay=disable-bt
sudo apt remove modemmanager
sudo apt autoremove

MAVLink Communication
MAV_1_CONFIG = TELEM2
MAV_1_FORWARD: Enabled
MAV_1_MODE: Normal
MAV_1_RADIO_CTL: Disabled
MAV_1_RATE: 19200 B/s
SER_TEL2_BAUD = 921600

But, still got a ‘Timed out’ result.

Sincerely,

GustavFring · July 6, 2023, 1:34am

Thanks to @junwoo0914, finally got a connected result.

Build firmware from source, I could upload firmware 1.14, then got connected successfully.

Thanks again.

junwoo0914 · July 6, 2023, 6:35pm

Glad that it worked out!