Pin | Signal | Description |
|---|---|---|
1 | GND | Power/signal ground. |
2 | RXD_MIC | UART RXD + Headset microphone. |
3 | PWR_IN_CON | External 5.4 VDC power input. |
4 | TRIG_PTT | Trigger or PTT input. |
5 | GND | Power/signal ground. |
6 | USB-OTG_ID | USB OTG ID pin. |
7 | TXD_EAR | UART TXD, Headset ear. |
8 | USB_OTG_VBUS | USB VBUS |
9 | USB_OTG_DP | USB DP |
10 | USB_OTG_DM | USB DM |
