DX9 Crossfire CRSF Protocol Instructions

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Find the pin holes labeled J16. We are using the 2
nd
and 3
rd
holes down for TX and Ground respectively.
Proceed to “tin” these two locations and solder your signal and ground leads to them, being
careful not to bridge the gap. For extra precaution, use a multi-meter to check that you have no
continuity between these points once soldering is complete.