Documentation Center
Pin
Number
Pin Name
Type
Description
1
TXD1
I/O
UART TX signal
2
GND
S
Ground
3
SPI_CS
I/O
SPI chip select signal
4
SPI_CLK
I/O
SPI clock signal
5
SPI_MISO
I/O
SPI MISO signal
6
SPI_MOSI
I/O
SPI MOSI signal
7
I2C1_SCL
I/O
I2C clock signal
8
I2C1_SDA
I/O
I2C data signal
9
VDD
S
Generated by CPU module. Used to power sensor board if MCU IO
level is not 3.3 V
10
IOx
I/O
General purpose IO pin. When 3V3_S is used, this pin cannot be
used as an interrupt input.
11
3V3_S
S
3.3 V power supply. This power pin is controlled by IO2 from the
WisBlock Core module.
12
IOx
I/O
General purpose IO pin. When 3V3_S is used, this pin cannot be
used as an interrupt input.
13
NC
NC
Not connected
14
3V3_S
S
3.3 V power supply. This power pin is controlled by IO2 from the
WisBlock Core module.
15
NC
NC
Not connected
16
VDD
S
Generated by CPU module. Used to power sensor board if the MCU
IO level is not 3.3 V.
17
NC
NC
Not connected
18
NC
NC
Not connected
19
NC
NC
Not connected
20
NC
NC
Not connected
21
NC
NC
Not connected
22
NC
NC
Not connected
