Jack Out Port cable color to A7 GPIO?
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drnemo1 commented
What wire or color of wire do you use off the PC/Headphone cable to the Jack Out Port to A7 GPIO? Mine has three wires- red, black and green.
nmrr commented
Hello,
Black is usually used for the ground (sleeve on the schematic). You can use a multimeter to be sure or simply test other wires. GPIO pins have an internal resistance so there is no risk.
