Pin assignments¶
Module seen from the top
Pin functions¶
Pin | Name | Pin type | Description |
---|---|---|---|
1 | VSS | Power | Ground (0V) |
2 | MOSI | Digital input | SPI Master Out, Slave In |
3 | N.C. | No connection | Do not connect |
4 | N.C. | No connection | Do not connect |
5 | N.C. | No connection | Do not connect |
6 | MISO | Digital output | SPI Master In, Slave Out |
7 | VSS | Power | Ground (0V) |
8 | UART_TXD | Digital output | UART TXD |
9 | VSS | Power | Ground (0V) |
10 | RS485_DE | Digital output | RS485 driver control signal |
11 | RS485_RE | Digital output | RS485 driver control signal |
12 | nRESET | Digital input | Reset Pin (3.3V Max) (Pull-up) |
13 | N.C. | No connection | Do not connect |
14 | N.C. | No connection | Do not connect |
15 | UART_RXD | Digital input | UART RXD (3.3V Max) |
16 | SCK | Digital input | SPI Clock |
17 | N.C. | No connection | Do not connect |
18 | N.C. | No connection | Do not connect |
19 | N.C. | No connection | Do not connect |
20 | N.C. | No connection | Do not connect |
21 | N.C. | No connection | Do not connect |
22 | N.C. | No connection | Do not connect |
23 | VSS | Power | Ground (0V) |
24 | VSS | Power | Ground (0V) |
25 | VSS | Power | Ground (0V) |
26 | VSS | Power | Ground (0V) |
27 | VSS | Power | Ground (0V) |
28 | IRQ | Digital output | SPI Interrupt signal, active low |
29 | N.C. | No connection | Do not connect |
30 | N.C. | No connection | Do not connect |
31 | N.C. | No connection | Do not connect |
32 | BOOTLOADER | Digital input | Bootloader entry (3.3V Max) (Pull-up) |
33 | CS | Digital output | SPI Chip select, active low |
34 | UART_MGMT_TX | Digital output | UART Management TX |
35 | UART_MGMT_RX | Digital input | UART Management RX (3.3V max) |
36 | VDD | Power | Power supply (3.3V) |
37 | VSS | Power | Ground (0V) |
38 | N.C. | No connection | Do not connect |
39 | VSS | Power | Ground (0V) |
40 | N.C. | No connection | Do not connect |
41 | N.C. | No connection | Do not connect |
ANT | RF ANT | RF | Antenna connector |