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Chapter 4. Sensor connection
Pin
Name
Function
1
A0
Primary analog I/0
2
A1
Secondary analog I/0
3
VCC
Power for Grove module
4
GND
Ground for Grove module
Table 4.2: Pin-out of the Grove analog connector
4.3
Grove UART
The Grove UART modules use two signal lines RX and TX. There are, for example, RFID module
that controlled by UART pins TX and RX.
The following table 4.3 shows the pin out of the Grove UART connector:
Pin
Name
Function
1
RX
Serial receive
2
TX
Serial transmit
3
VCC
Power for Grove module
4
GND
Ground for Grove module
Table 4.3: Pin-out of the Grove UART connector
4.4
Grove I2C
The Grove I2C modules use two signal lines SDA and SCL. There are, for example, motion detect
module and environment module that controlled by I2C pins SDA and SCL.
The following table 4.4 shows the pin out of the Grove I2C connector:
Pin
Name
Function
1
SCL
I2C Clock
2
SDA
I2C data
3
VCC
Power for Grove module
4
GND
Ground for Grove module
Table 4.4: Pin-out of the Grove UART connector
