Hi everyone — I’m working on a DualSense BDM-050 / BDM-060 and I’m trying to add a single back button that triggers Circle + L3 (stick click) at the same time.
I already have the diode wiring concept (two diodes, striped ends joined, then to the back button, other leg to GND). The problem is finding the correct L3 signal pad and correct ground reference on BDM-050/060. On earlier revisions, L3 can behave differently (sometimes only consistent when powered), and I’m trying to avoid accidentally tapping 3.3V/VCC and creating a short/protection blinks.
What I’m asking for:
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Any BDM-050/BDM-060 pinout / pad map / test points for:
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L3 signal
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L3 ground (GROUND2 equivalent)
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Circle signal pad
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3.3V test point (so I can confirm no shorts)
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If anyone has board scans/photos labeled with these points, that’s perfect.
Goal: stable L3 + Circle back button mod without shorts and with correct diode isolation.