Pixhawk 6X without IO

I’m designing a carrier board for Pixhawk6X, and hope to avoid having to implement the IO part. DS-010 and DS-012 are not really clear on what is the “standard” method of connecting S.Bus (and analog RSSI) to the FMU? Is such configuration possible at all, or is the IO mandatory, if we want to receive S.Bus control? Can pin 70 of X1 (USART6_RX_FROM_IO__RC_INPUT) be used for this?

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I was looking to do the same. I ultimately decided to invest in the CubePilot modules since their carrier boards actually make sense (no FMU), they have great support, and even reference designs. And currently it’s only one center mounted 80pin connector, not two.

I would definitely use the 6X. In testing I’ve done, it’s a great board.

As for the question, @Vincentpoont2 can prob answer that. Stick with the 6x.

You will not be disappointed.

Vince from HolyBro plans on releasing some schematics shortly.