Better SBUS failsafe detection and reporting #7
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I found that FS does not trigger if my XM+ receiver is set to not send sbus frames while in failsafe. More generally, no FS triggers if the receiver gets disconnected.
Here I monitor the actual reception of frames as returned by sbus.read() and trigger failsafe if a defined number of subsequent frames is missing.
FS is also shown by turning on fixed LED.