Documentation Center
Connector for WisBlock IO Slot
The WisBlock Module IO Slot connector, as shown in Figure 8, is a 40-pin board-to-board connector.
Figure 8: WisBlock IO slot connector
Pinout definition for IO slot:
Pin
Number
Connector
A
Connector
B
Connector
C
Connector
D
Type
Description
14
3V3_S
3V3_S
3V3_S
3V3_S
S
3.3 V power
supply. Can be
shut down by the
CPU module.
15
NC
NC
NC
NC
NC
Not connected
16
VDD
VDD
VDD
VDD
S
Generated by CPU
module. Used to
power sensor
board if the MCU
IO level is not
3.3 V.
17
NC
NC
NC
NC
NC
Not connected
18
NC
NC
NC
NC
NC
Not connected
19
NC
NC
NC
NC
NC
Not connected
20
NC
NC
NC
NC
NC
Not connected
21
NC
NC
NC
NC
NC
Not connected
22
NC
NC
NC
NC
NC
Not connected
23
GND
GND
GND
GND
S
Ground
24
RXD1
NC
NC
RXD1
I/O
UART RX signal
