Raspberry Pi Pixhawk Cube connection

[Nil_DUMAN]

Hi
I am trying to connect raspberry pi 4 to Pixhawk Cube orange via TTL.
I am using /dev/ttyUSB0 and the baud is 57600 and I can’t get a heartbeat.
What am I doing wrong. Please help.
Thank you

[count74 (Sebastian Schürmann)]

Your question is missing a lot of details. Are you using the UART pins on the RPi and a telemetry port on the FC (ttyS0 or ttyAMA0), or a USB cable (ttyACM0), or a USB to UART adapter and a telemetry port (ttyUSB0/1/2…)?
Which software do you use on the RPi?

[Nil_DUMAN]

I am using MAVLink
and the UARTS Pin in RPi 4 directiy to the telem2 port ttyAMA0

[johnmeeel (John Mel Bolaybolay)]

hello, would like to ask if you have resolved this?

[Nil_DUMAN]

I connected raspberry pi to cube via usb cable and it worked. Also read this entry, I think you would be able to solve it as well.

Communicating using RPi through USB

Hi all, I’m building a hex copter that utilises beam riding control system. I checked the document on how to connect the RPi to PixHawk. However, I need the same pins for my sensor system. I want to know what are the changes that need to be done for the commands when connecting the RPi USB port to the PixHawk micro USB port(or telemetry port which I am not sure) and communicate via MavLink. Mentioned Specs: -Raspberry Pi 3B+ -PixHawk Cube I would greatly appreciate the answers!

[johnmeeel (John Mel Bolaybolay)]

You could try connecting through telem ports. You can look the assigned rx tx pins in the telem ports of the cube and connected it to the r-pi’s UART.

The FC on mine is ttyAMA0 and i configured the baudrate to 921600

[coffeepaitt]

If I using telem2 port, should the VCC from telem2 connect to TTL?

[johnmeeel (John Mel Bolaybolay)]

I think that if you don’t have any power source, you can connect the vcc.
But, to allow the follow of the connection, the ground with each other needs to be connected.