I'm throwing together my first build and I'm having trouble with the receiver. The build uses an Omnibus F4 flight controller (this one) and an FS-IA6B receiver. I am trying to use PPM, and I've wired the receiver to the flight controller as shown in the photo below.

The yellow wire goes to the PPM pin (at least according to the pin labels shown in the banggood posting). These wires go to the receiver's PPM port as shown below.

I have tried setting the FC up with betaflight, but the receiver does not seem to be correctly connected. Here is a collection of screenshots of my Betaflight settings.


My receiver page doesn't respond at all to my transmitter, even though the FS-IA6B receiver LED is steady, signifying a proper binding.

Anyone have any ideas as to what I can do to fix this issue? Otherwise, if PPM seems like it won't be working, does anyone know what I should do with these components to setup IBUS?

The yellow wire goes to the PPM pin (at least according to the pin labels shown in the banggood posting). These wires go to the receiver's PPM port as shown below.

I have tried setting the FC up with betaflight, but the receiver does not seem to be correctly connected. Here is a collection of screenshots of my Betaflight settings.


My receiver page doesn't respond at all to my transmitter, even though the FS-IA6B receiver LED is steady, signifying a proper binding.

Anyone have any ideas as to what I can do to fix this issue? Otherwise, if PPM seems like it won't be working, does anyone know what I should do with these components to setup IBUS?