Pin | Signal | Description |
---|---|---|
1 | USB +5V | connect to PC USB pin 1 |
9 | Gnd | connect to PC USB pin 4 |
10 | USB DATA+ | connect to PC USB pin 3 |
11 | USB DATA- | connect to PC USB pin 2 |
12 | Charge In | should be connected to PC USB pin 1 for charging. Anyway, charging should proceed without this connection in some cases. |