Elrs lite Rx does not work at baud rates other than 420000 (?)

[Davide_Lentini]

Hello everyone , I own an elrs lite rx , and a tx module . Very simply my problem is that when I set the baudrate of the rx to the default 420000 everything works perfectly . When I change it to 115200 it no longer works .
My parameters are.
SERIAL4 :
baudrate :115 ( seems indefferent since it says that ardupilot automatically sets the baudrate of the elrs)
option : 0
protocol : 23

rc_protocols : crossfire

RC_OPTIONS :

The version of ardupilot is 4.3.3

[amilcarlucas]

Please retest with version 4.6.0-dev . I think it got fixed a couple of days ago.

[Davide_Lentini]

Thanks ! I’ll try and leave here a feedback

[Davide_Lentini]

first test with 4.6.0 and unfortunately the problem persists , is there by any chance the need to set other parameters with this version ? Thanks

[Janno (Jan Ole Noack)]

Maybe a dumb question, why don’t you want to use 420kbaud?

@Davide_Lentini

baudrate :115 ( seems indefferent since it says that ardupilot automatically sets the baudrate of the elrs)

Actually, Ardupilot automatically sets the baudrate to 416kbaud for crossfire and with RC_OPTIONS bit 13 (which you didn’t check btw) you tell it to set it to 420kbaud for ELRS instead.