Anyone have experience or perhaps insight into how one might get telemetry over softserial to a DJI OcuSync Air Module? I've got one of these connected up with a Matek F411-Wing, iNav 2.1.0, with a serialRX SBUS connection on one of the UARTs configured successfully, such that I can send RC signals from a FrSky X9D+, connected via a PPM trainer cable to the FrSky Race Edition Goggles.
The F411-Wing only has two UARTs, and the other UART is connected to a GPS receiver.
I was able to get smartport telemetry sent from iNav/F411W to the DJI Air Module and see the telemetry data reflected in the goggles OSD (limited to roll/pitch/battery/GPS/time armed) when I used one of the F411W's UARTs, but cannot get softserial to work for telemetry. I've configured the softserial ST1 pad (PA0 pin) for 19200 baud, and connected that one ST1 pin (TX output only) to the RX input of the Air Modules UART port. I left the TX port floating, and also tried pulling it up with a 1KOhm and 10KOhm resistor to no effect.
Hoping someone might have experience with this. I guess I can always go without telemetry, but it would be nice to have. Maybe my pull up setup is wrong with the wrong resistors? It's supposed to be a 3.3V port, but I have no idea what the draw would be.
The F411-Wing only has two UARTs, and the other UART is connected to a GPS receiver.
I was able to get smartport telemetry sent from iNav/F411W to the DJI Air Module and see the telemetry data reflected in the goggles OSD (limited to roll/pitch/battery/GPS/time armed) when I used one of the F411W's UARTs, but cannot get softserial to work for telemetry. I've configured the softserial ST1 pad (PA0 pin) for 19200 baud, and connected that one ST1 pin (TX output only) to the RX input of the Air Modules UART port. I left the TX port floating, and also tried pulling it up with a 1KOhm and 10KOhm resistor to no effect.
Hoping someone might have experience with this. I guess I can always go without telemetry, but it would be nice to have. Maybe my pull up setup is wrong with the wrong resistors? It's supposed to be a 3.3V port, but I have no idea what the draw would be.