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- 1Thank you for your answer but I believe you missed something. It's ground that the circuit is connected to, not a positive end. Or did I misunderstand you?Andreas– Andreas2019-09-03 20:20:57 +00:00Commented Sep 3, 2019 at 20:20
- The DF Miniplayer has some internal pullup resistor, yes? So connecting different value resistors from the pin to Gnd via switch creates a voltage divider and results in different voltages at the pin. How is that different than driving the pin with a voltage directly? Setup a few resistors, measure the voltage when pressed. See 3.5 of the Manual to see what buttons do github.com/Arduinolibrary/DFPlayer_Mini_mp3/raw/master/…CrossRoads– CrossRoads2019-09-04 02:23:18 +00:00Commented Sep 4, 2019 at 2:23
- To be honest I dont know. I don't have a clue what the internals are and how that is different. I don't have the knowledge. I can see a benefit of your answer if it works, but since I only need two or three then I'm fine with just using separate pins.Andreas– Andreas2019-09-04 06:06:59 +00:00Commented Sep 4, 2019 at 6:06
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