Datasheet
Arduino UNO click Shield - schematics
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
VCC-3.3V VCC-5V
1
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
VCC-3.3V VCC-5V
2
PC0/AN0 PC1/AN1
PB2/SPI-SS PB1
PB4/SPI-MISO PB4/SPI-MISO
PB3/SPI-MOSI PB3/SPI-MOSI
PB5/SPI-SCK PB5/SPI-SCK
PC4/I2C-SDA PC4/I2C-SDA
PC5/I2C-SCL PC5/I2C-SCL
PD1/UART-TX PD1/UART-TX
PD0/UART-RX PD0/UART-RX
PD2/INT0 PD3/INT1
PD6/PWMA PD5/PWMB
PC3 PC2
1
2
3
4
5
6
7
8
9
10
HD4
N2X10
1
2
3
4
5
6
7
8
HD3
N2X8
1
2
3
4
5
6
7
8
HD2
N2X8
1
2
3
4
5
6
HD1
N2X6
PB4/SPI-MISO
PB3/SPI-MOSI
PB5/SPI-SCK
PB2/SPI-SS
PB1PC4/I2C-SDA
PC5/I2C-SCL
PC3
PC2
PC1/AN1
PC0/AN0
VCC-3.3VVCC-5V
PD6/PWMA
PD5/PWMB
PD3/INT1
PD2/INT0
HDR_TX
HDR_RX
HDR_TX
HDR_RX
1
2
3
4
5
6
SW1
JS202011AQN
PD1/UART-TX
PD0/UART-RX