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Figure 18.
Arduino
™
and ST morpho connectors pinout
Note:
Arduino
™
Uno V3 D0 and D1 signals are connected by default on USART1 (MCU I/O PC4 and PC5). For details
about how to modify the UART interface, refer to
Section 6.6.5 Virtual COM port (VCP): LPUART and USART
Table 15.
Arduino
™
connectors pinout
Connector
Pin number
Pin name
Signal name
Function
CN6
1
NC
-
-
Reserved for test
2
IOREF
-
-
I/O reference
3
NRST
NRST
PG10-NRST
RESET
4
3V3
-
-
3V3 input/output
5
5V
-
-
5 V output
6
GND
-
-
GND
7
GND
-
-
GND
8
VIN
-
-
7 V - 12 V input power
CN8
1
A0
ADC
PA0
ADC12_IN1
2
A1
ADC
PA1
ADC12_IN2
3
A2
ADC
PA4
ADC2_IN17
4
A3
ADC
PB0
ADC3_IN12 or ADC1_IN15
5
A4
ADC
PC1
/
PB9
ADC12_IN7
/
I2C1_SDA
6
A5
ADC
PC0
/
PA15
ADC12_IN6
/
I2C1_SCL
UM2505
Arduino™ Uno V3 connectors CN5, CN6, CN8 and CN9
UM2505
-
Rev 2
page 30/43