I've started studying and comprehending the ardupilot source code and I've found all of the PCBs. But there is one thing missing. I've been looking for the schematic and PCB for the IR sensors both XY and Z ones. But I have found nothing neither here nor anywhere else in the web. (Exept paparazzi project which have a fairly different PCB)
My question is how can I find the PCB for that?
Thank in advance for any even small help.
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