Skystars H7 HD IRC Tramp

[tom-ace123]

Skystars H7 HD -

I am having a hard time getting my Skystars H7 HD to recognize an HGLRC 2.5W Zeus VTX on ardupilot 4.6.1

I am on UART 5 but have tested other UARTs. I’m tempted to jumper the PIT mode pad and reset all the relays to default (81,82,83) BUT I was able to get a camera switcher to work, so haven’t wanted to do that.

I have changed the relay settings:
RELAY1_DEFAULT,0
RELAY1_FUNCTION,1
RELAY1_INVERTED,0
RELAY1_PIN,-1
RELAY2_DEFAULT,0
RELAY2_INVERTED,0
RELAY2_PIN,-1
RELAY3_DEFAULT,1
RELAY3_FUNCTION,1
RELAY3_INVERTED,0
RELAY3_PIN,82
RELAY4_FUNCTION,0
RELAY5_FUNCTION,0
RELAY6_FUNCTION,0

SERIAL5_BAUD,115
SERIAL5_OPTIONS,68
SERIAL5_PROTOCOL,44

Any thoughts or ideas? I very well could just have a VTX that won’t communicate.

Update:
I was able to jumper the PIT pad and control PIT via standard RC control. But still no IRC Tramp which is my primary issue.

[Hwurzburg]

@andyp1per any input?

[andyp1per]

Make sure you are using the bdshot version of the firmware - the original port had a load of problems which I fixed in the bdshot version