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RFinder M1 Earphone pinout

OK…here are the pinouts for the speaker/mic on the Magnetic connector…it appears from translating the Chinese inset (Google Translator App) you attach a 680 ohm resistor from the mic pin to ground to switch mode of the connector…Again I have tested nothing but you can make an easy cable to interface from the wired headset…you cannot run USB and Spkr/Mic together, of course.

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