Can't get ELRS receiver working with matek f405 wmn flight controller

Heya, complete noob here and i’ve got what’s probably a simple configuration issue. I’m trying to set up my matek f405-wmn FC to receive controller input from my Matek ELRS-R24-D receiver.
The receiver pairs to my transmitter fine and as far as i can tell i’ve followed everything on the ELRS setup page Ardupilot Setup - ExpressLRS
However viewing the controller inputs in mission planner’s radio calibration panel shows no signs of life. I’ve triple checked that uart is wired correctly and that there’s no shorts. What could i have possibly missed?

ayyyye got it working now! If anyone was wondering, i needed to set BRD_ALT_CONFIG to 1 apparently

it wasn’t mentioned in the matek manual, only on the mapping page

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That’s pretty normal for where it’s stated.

Here’s another good resource for you:

https://ardupilot.org/copter/docs/common-matekf405-te.html

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Aaah I missed the note under default uart order, thanks