Zigbee modules (TI CC2652, Silicon Labs EFR32) use castellated LCC or stamp module pads for board-to-board soldering, providing 802.15.4 2.4 GHz mesh networking for smart home devices with UART or SPI host interface.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | Supply 3.3V | PWR |
| 2 | GND | Ground | GND |
| 3 | TX | UART transmit from module | BUS |
| 4 | RX | UART receive to module | BUS |
| 5 | RESET | Module reset active low | I/O |
| 6 | GPIO1 | General purpose I/O | I/O |
| 7 | ANT | 2.4 GHz antenna | BUS |