Unable to receive RC Data

ArduPlane
1

Hi guys,

i am new to this and i can’t seem to get it running:

PLan is to use a Radiomaster Boxer ELRS with Rp4TD ELRS Module on a matek wing h743 V3 Board with Mission Planner.

MP is recieving Data from the Matek (reacts on moving the matek around), The RP4TD is binded with the Radiomaster (purple light indicator).
RP4 is connected on tx2rx2 uart2 port on the matek (inverted as it should be rx→tx). Soldering/cables checked.

I have no idea anymore what to try. ELRS Versions are both rp4 and RM 3.3.1. All “common” mistakes seem to be checked.

Settings on MP:

  1. RP4TD an UART2
  2. SERIAL2_PROTOCOL = 23, options = 0
  3. Baudrate 420000

Thank you very much!

Lu

2

UART2 (TX2/RX2) is actually SERIAL3. So try setting:

SERIAL2_PROTOCOL,0 #You can only have one serial port set to RC
SERIAL3_PROTOCOL,23
SERIAL3_BAUD, 115
3

Also, use the RC_OPTIONS bit to select 420kbaud for ELRS rather than trying to force it with the SERIAL param.

4

Check to make sure RSSI_TYPE = 3.

Make sure you set RC_OPTIONS as mentioned above.