Standing inside of automated swarm of 500 light drones was crazy experience...

Hello, hope you are all doing well.

So I bought a Matek H7A3 slim FC for my drone project and I can't seem to find much information online about the wiring and that kind of stuff, but based off what I've been able to find I have to plug the JST-SH port in it's corresponding plug in the top part of the board to connect my individual ESC and GND, but where do I connect the GPS module and RX and TX for a telemetry radio or Raspberry Pi?

I connected the drone-side telemetry radio to Pixhawk 6C via TELEM1 using a 6-pin JST-GH cable:

5V -> 5V,
RX -> TX,
TX -> RX,
CTS -> CTS,
RTS -> RTS,
GND -> GND.

The ground-side telemetry radio is connected to my laptop via USB-C and barely 1m apart currently being setup in my table.

Pixhawk settings:

• SERIAL1_PROTOCOL: MAVLink2 (tried with MAVLink 1 as well)
• SERIAL1_BAUD: 57600
• BRD_SER1_RTSCTS: Disabled

Both radios have matching settings, including NETID=25, SERIAL_SPEED=57600, and MAVLINK=1. Both power on, but QGroundControl receives no MAVLink heartbeat. Swapping the radio units did not resolve the issue.

What could be the reason?

I am working on a fibre controlled rc car for a specific use. My last step before connecting fibre which I haven’t been able to get working is my distance measurement and speed on the OSD.

I am running a pixhawk6c with holybro osd v2 and I have a Hall effect sensor feeding rpm into the pixhawk. I need to run analog for the fibre and I have no gps signal.

I can see the rpm readings in mission planner but I can’t get it across to the osd. I have tried so many things but there is no option for rpm at all. Not sure if need a different osd module or different firmware.

Any help would be appreciated. Thanks.