![](/images/new-backgrounds/1205848/205848231x1.webp)
9Connector pin assignments
Audio-out (headphone)
Pin | Signal |
|
|
1 | Audio out, left channel |
|
|
2 | Audio out, right channel |
|
|
3 | Ground |
|
|
Audio-in (microphone)
Pin | Signal |
|
|
1 | Audio signal in |
|
|
2 | Audio signal in |
|
|
3 | Ground |
|
|
108 Chapter 9 Connector pin assignments