ST NUCLEO-F031K6 User Manual

UM1956 Rev 4 21/35
UM1956 Hardware layout and configuration
34
6.11 Arduino Nano connectors
CN3 and CN4 are male connectors compatible with Arduino Nano standard. Most shields
designed for Arduino Nano can fit the STM32 Nucleo-32 board.
Caution: The I/Os of STM32 are 3.3 V compatible instead of 5 V for Arduino Nano.
Table 9, Table 10, Table 11, Table 12, Table 13, Table 14 and Table 15 show the pin
assignments of each STM32 on Arduino Nano connectors.
Figure 7 and Figure 8 show Arduino Nano connectors and pin assignments for
NUCLEO-F031K6, NUCLEO-F042K6, NUCLEO-F303K8, NUCLEO-L011K4, NUCLEO-
L031K6 and NUCLEO-L432KC.
SB16 OFF
CN4 pin 7 is used as Arduino Nano analog input A5 without I
2
C
support and CN3 pin 8 is available as Arduino Nano D5.
SB18
ON
STM32 PB7 is connected to CN4 pin 8 for I
2
C SCL support on
Arduino Nano A4. In such case STM32 PB7 does not support
Arduino Nano D4 and PA5 must be configured as input floating.
OFF
CN4 pin 8 is used as Arduino Nano analog input A4 without I
2
C
support and CN3 pin 7 is available as Arduino Nano D4.
1. The default configuration is reported in bold style.
Table 8. Solder bridges (continued)
Bridge State
(1)
Description
Table 9. Arduino Nano connectors on NUCLEO-F031K6
Connector Pin number Pin name STM32 pin Function
Left connector
CN3
1 D1 PA9 USART1_TX
(1)
2 D0 PA10 USART1_RX
(1)
3 RESET NRST RESET
4 GND - Ground
5 D2 PA12 -
6 D3 PB0 TIM3_CH3
7 D4
(5)
PB7 -
8 D5
(5)
PB6 TIM16_CH1N
(2)
9 D6 PB1 TIM14_CH1
10 D7
(3)
PF0 -
11 D8
(3)
PF1 -
12 D9 PA8 TIM1_CH1
13 D10 PA11 SPI_CS
(4)
|| TIM1_CH4
14 D11 PB5 SPI1_MOSI || TIM3_CH2
15 D12 PB4 SPI1_MISO
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ST NUCLEO-F031K6 Specifications

General

Brand	ST
Model	NUCLEO-F031K6
Category	Motherboard
Language	English