No parameters SRx for telemetry port 4 and 5

ArduCopter Copter 3.5
1

Hi
I am trying to connect alexmoss gimbal to pixhawk 2.1 (cube). On telemetry 1 I have graupner telemetry, on telemetry 2 port I have 433mhz telemetry and sr3 is GPS. In parameters I can see and set serial_protocol for all connectors but I can’t set srx_xxxxxxx parametres for connector 4 and 5. I don’t see any setting with sr for 4 and 5 connector :frowning: I have all settings only for sr1 to sr3 connectors. How can I turn them on ??? Telemetry port 4 is working I check this with graupner telemetry and it sends info to alexmoss but I can’t set

  • SR4_EXTRA1 = 20
  • SR4_POSITION = 5
  • SR4_RC_CHAN = 20
    because they don’t exist in parameters :frowning:
2

Can someone confirm that when he load parameters of the telemetry. He can see sr4 and sr5 like
SR4_EXTRA1
SR4_POSITION
SR4_RC_CHAN
???

3

Can anyone check in his parameters. Doaes he have :
SR4_EXTRA1
SR4_POSITION
SR4_RC_CHAN
???

4

There can be only 4 mavlink connections:
https://discuss.cubepilot.org/t/srx-for-telemetry-port-4-and-5/137

5

I know this thread is old, but any news on using the GPS2 port as mavlink? Did you manage to configure it?

6

Yes it’s working. I have 3 mavlink devices and gps.

7

And how did you solve the issue with the missing SR4 and SR5 parameters?

EDIT: OK, I just saw that SRx parameters map differently:

8

Update to at least ArduCopter 3.6.12. All options are there

9

SRx parameters apply only to the serial ports set to Mavlink. For example SR3 params do not apply to Serial3 if it’s set to GPS, SR3 params would apply to the next (3rd) Serial port set to Mavlink

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