Switched to ELRS Radio Receiver. No movement in Arduplane

ArduPlane Plane 4.2
1

Last night I tried to switch my plane to an ELRS system. I got the radio and receiver bound. But I’m not seeing any pwm movement in the “Radio Calibration” panel in Arduplane.

Hardware:
Speedybee f405 wing - using UART1 for ELRS
RadioMaster Pocket ELRS
RadioMaster RP1

Parameters:

  • SERIAL1_PROTOCOL = 23 (RCIN)
  • SERIAL1_BAUD = 115 (amongst others)
  • SERIAL1_OPTIONS = 0 (and bit 9 for CRSF)
  • RSSI_TYPE = 3 (ReceiverProtocol)
  • RC_OPTIONS bit 13 set for baud rate 420k

From what I can tell from the autopilot documentation no alternate configurations are needed, serial1 should have DMA. I’m sure the problem is something stupid. Does anybody have any ideas?

2

Most often, folks mess up the RX/TX connections. Try swapping them.

4

I will double-check the wiring and my soldering. But right now it’s setup TX to RX.

5

You sure the receiver is bound?

6

Tx says it is bound and I’m getting a solid green light on the rx.

7

If that is the only configured RC interface, it should be working. Check that wiring again. We see it all the time…

8

Bad solder connection :expressionless:

1 Like