| No. | Pin | Pin Direction | Remarks |
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | GND | - | Ground wire, connected to the power reference ground |
| 4 | DIO_0 | input /Output | General IO port, sensor controller (see CC26xx manual for details) |
| 5 | DIO_1 | input /Output | General IO port, sensor controller (see CC26xx manual for details) |
| 6 | DIO_2 | input /Output | General IO port, sensor controller (see CC26xx manual for details) |
| 7 | DIO_3 | input /Output | General IO port, sensor controller (see CC26xx manual for details) |
| 8 | DIO_4 | input /Output | General IO port, sensor controller (see CC26xx manual for details) |
| 9 | DIO_5 | input /Output | High-drive general-purpose IO port, sensor controller (see CC26xx manual for details) |
| 10 | DIO_6 | input /Output | High-drive general-purpose IO port, sensor controller (see CC26xx manual for details) |
| 11 | DIO_7 | input /Output | High-drive general-purpose IO port, sensor controller (see CC26xx manual for details) |
| 12 | DIO_8 | input /Output | General IO port, see CC26xx manual for details) |
| 13 | DIO_9 | input /Output | General IO port, see CC26xx manual for details) |
| 14 | DIO_10 | input /Output | General IO port, see CC26xx manual for details) |
| 15 | DIO_11 | input /Output | General IO port, see CC26xx manual for details) |
| 16 | DIO_12 | input /Output | General IO port, see CC26xx manual for details) |
| 17 | DIO_13 | input /Output | General IO port, see CC26xx manual for details) |
| 18 | DIO_14 | input /Output | General IO port, see CC26xx manual for details) |
| 19 | DIO_15 | input /Output | General IO port, see CC26xx manual for details) |
| 20 | JTAG_TMS | input /Output | JTAG_TMSC, high drive capability (see CC26xx manual for details) |
| 21 | JTAG_TCK | input /Output | JTAG_TCKC, high drive capability (see CC26xx manual for details) |
| 22 | DIO_16 | input /Output | High-drive general-purpose IO port, JTAG_TDO (see CC26xx manual for details) |
| 23 | DIO_17 | input /Output | High-drive general-purpose IO port, JTAG_TDI (see CC26xx manual for details) |
| 24 | DIO_18 | input /Output | General IO port, see CC26xx manual for details) |
| 25 | DIO_19 | input /Output | General IO port, see CC26xx manual for details) |
| 26 | DIO_20 | input /Output | General IO port, please refer to CC26xx manual for details) |
| 27 | GND | - | Ground wire, connected to the power reference ground |
| 28 | DIO_21 | input /Output | General IO port, see CC26xx manual for details) |
| 29 | VCC | - | Power supply, 1.8~3.8V |
| 30 | DIO_22 | input /Output | General IO port, see CC26xx manual for details) |
| 31 | DIO_23 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 32 | nRESET | input | Reset, low level (see CC26xx manual for details) |
| 33 | DIO_24 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 34 | DIO_25 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 35 | DIO_26 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 36 | DIO_27 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 37 | DIO_28 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 38 | DIO_29 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 39 | DIO_30 | input /Output | General IO port, sensor controller, digital-analog (see CC26xx manual for details) |
| 40 | GND | - | Ground wire, connected to the power reference ground |
| 41 | GND | - | Ground wire, connected to the power reference ground |
| 42 | GND | - | Ground wire, connected to the power reference ground |