title_body: Working on a Quadcopter. Unsure if this flight controller supports an FS-IA6 receiver I am really new to drone building and I have had some awful luck trying to figure out what is compatible with what. Here is the link to the AIO flight controller I chose to use for my build. It won't be a tiny build but I will still use this flight controller --&gt; The Flight Controller
  I am also using this Fly Sky Remote and Receiver --&gt; The Remote and Receiver
  My main concern is using the FS-IA6 receiver with the SPI RX setup on the flight controller. Does anyone have advice on such a configuration? Any advice is greatly appreciated.
upvoted_answer: So, I don't believe the components you have are entirely compatible with one another. The FS-iA6 RX only has PWM/PPM outputs, while the BetaFPV F4 AIO 1-2S FC requires some kind of serial RX. The &quot;SPI RX&quot; module mentioned in the spec sheet appears to just be a small FrSky RC module that BetaFPV sells and not something that would allow you to connect to your RX.
  I think your cheapest mode of recovery is to get a &lt;$15 USD FS-RX2A receiver, like this listing on Amazon. This model is featured on your FC's Amazon listing, including a wiring diagram:
  
  It has a serial port output (Flysky iBus), which should be entirely compatible with the FC and Betaflight.