Hello all. I am currently making a project that uses a DFPlayer Mini connected to an Arduino. In order to use a speaker and aux cable that I already have, I ordered some cheap 3.5mm jacks from eBay, but am a little puzzled by the pinout I found on Sparkfun (https://learn.sparkfun.com/tutorials/connector-basics/audio-connectors). The image that they have says that the outermost pins are tip/ring, however in disassembling the jacks that I received, they look slightly different.
While pin 1 (see my photo) does, in fact, seem to be tip, I can't tell what pin is ring because it looks like pins 3 and 4 are touching (internally) without any cable plugged in. Indeed, it seems as though pin 3 is the one that actually touches the ring of the cable's plug. So which one should I wire to the DFPlayer Mini, 3 or 4? Lastly, since pin 5 touches the sleeve, do I have to wire that to ground? Thank you in advance!
While pin 1 (see my photo) does, in fact, seem to be tip, I can't tell what pin is ring because it looks like pins 3 and 4 are touching (internally) without any cable plugged in. Indeed, it seems as though pin 3 is the one that actually touches the ring of the cable's plug. So which one should I wire to the DFPlayer Mini, 3 or 4? Lastly, since pin 5 touches the sleeve, do I have to wire that to ground? Thank you in advance!