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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 --> The Flight Controller

I am also using this Fly Sky Remote and Receiver --> 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.

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  • $\begingroup$ Theoretically, I believe that iBus should work on any UART RX pad, but I'm not sure. $\endgroup$
    – ifconfig ♦
    Commented Apr 19, 2021 at 1:12
  • $\begingroup$ Actually, nevermind! The FS-iA6 doesn't support iBus. $\endgroup$
    – ifconfig ♦
    Commented Apr 19, 2021 at 1:14
  • $\begingroup$ @ifconfig what should I do then? Can I not use the FS-iA6 with this flight controller? If so, which Remote and Receiver should I get? $\endgroup$
    – Redgar Pro
    Commented Apr 19, 2021 at 2:34

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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 "SPI RX" 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 <$15 USD FS-RX2A receiver, like this listing on Amazon. This model is featured on your FC's Amazon listing, including a wiring diagram:

enter image description here

It has a serial port output (Flysky iBus), which should be entirely compatible with the FC and Betaflight.

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    $\begingroup$ Thank you so much for this answer! I love the advice. Do you think that I could also return the remote and the receiver (as I had recently purchased it) and just get the receiver that supports the SPI RX pins on the flight controller? Then, I would also separately purchase a remote that supports this? That way, I actually might save some money and ultimately, be able to control the drone. $\endgroup$
    – Redgar Pro
    Commented Apr 19, 2021 at 3:21
  • $\begingroup$ Technically, yes you could! The sold separately SPI RX (betafpv.com/products/spi-frsky-receiver) supports the "D8" FrSky protocol, so you'd need a compatible radio if you wanted to use that. There are many of them, including ones not sold/produced by FrSky, so there isn't one clear recommendation I can make in that regard. $\endgroup$
    – ifconfig ♦
    Commented Apr 19, 2021 at 7:03
  • $\begingroup$ Although, I urge caution if you choose to get a TX made by FrSky. They've pulled some serious shenanigans recently with some of their radios by making versions that don't support some older protocols like D8. I don't have FrSky gear to confirm for myself, but I have it on good authority that you should stay away from "ACCESS"-branded ones for "D8" RXs. (reddit.com/r/fpv/comments/gl3jhg/…) $\endgroup$
    – ifconfig ♦
    Commented Apr 19, 2021 at 7:09
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    $\begingroup$ Thank you so much for your input! This was very helpful. $\endgroup$
    – Redgar Pro
    Commented Apr 19, 2021 at 11:03
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    $\begingroup$ Agree with what @ifconfig has commented. A ~\$15 FS-Rx2A is the cheapest way to get stuff to work. Although I think that if you plan on getting a different radio, consider getting some OpenTx radio instead of FrSky. There are budget options which you can get for as less as ~\$50-70 + Around ~\$10-20 for a receiver. Don't think that's ideal if you don't plan to fly a lot though and are on a budget. FS-i6 would serve you well in that case. $\endgroup$
    – Kritik Agrawal
    Commented Apr 20, 2021 at 18:25

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