search

nmrr / flipperzero-geigercounter

☢☢ A geiger counter application for the Flipper Zero ☢☢
208 stars 7 forks source link

Jack Out Port cable color to A7 GPIO? #2

Closed drnemo1 closed 1 year ago

drnemo1 commented 1 year ago

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 1 year ago

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.