| 1 |
NC |
Not Connected |
| 2 |
GND |
Ground |
| 3 |
EXT_VDD |
External power pin |
| 4 |
VDD_P3V3 |
Internal power pin |
| 5 |
EXT_VDD |
External power pin |
| 6 |
VDD_P3V3 |
Internal power pin |
| 7 |
P1V8_5V GPIO3 |
General purpose I/O pin |
| 8 |
P1V8_5V GPIO4 |
General purpose I/O pin |
| 9 |
P1V8_5V GPIO1 |
General purpose I/O pin |
| 10 |
P1V8_5V GPIO2 |
General purpose I/O pin |
| 11 |
P1V8_5V_I2C_SDA |
Data pin for I2C interface |
| 12 |
P1V8_5V_I2C_SCL |
Clock pin for I2C interface |
| 13 |
P1V8_5V_UART_S_TX_M_RX |
Receiver pin of the UART host device |
| 14 |
P1V8_5V_UART_S_RX_M_TX |
Transmitter pin of the UART host device |
| 15 |
P1V8_5V_SPI_SS |
Client Select for SPI. This pin must not connect to anything
else. |
| 16 |
P1V8_5V_SPI_MOSI |
SPI host out, client in pin |
| 17 |
P1V8_5V_SPI_MISO |
SPI host in, client out pin |
| 18 |
P1V8_5V_SPI_SCK |
SPI clock pin |
| 19 |
GND |
Ground |
| 20 |
VDD_P3V3 |
Power pin |