Arduino Shield Boards; Table 11. Connecting With Arduino Shields - ST STM32F051R8T6 User Manual

UM1525
5.3

Arduino shield boards

Arduino™ is an open-source electronics prototyping platform based on flexible, easy-to-use
hardware and software. See http://www.arduino.cc for more information.
Arduino accessory boards are called "Shields" and can be easily connected to the
STM32F0 Discovery according to the following table.
Table 11.
Reset
3V3
5V
GND
GND
Vin
A0
A1
A2
A3
A4
A5
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
GND
AREF
Connecting with Arduino shields
Connecting with Arduino shields
Arduino power connector
Reset from Shield board
VCC 3.3V power line
VCC 5V power line
Reference Ground
Reference Ground
External alimentation
Arduino analog in connector
Analog input or Digital pin 14
Analog input or Digital pin 15
Analog input or Digital pin 16
Analog input or Digital pin 17
Analog input or SDA or Digital
pin 18
Analog input or SCL or Digital
pin 19
Arduino digital connector
Digital pin 0 or RX
Digital pin 1 or TX
Digital pin 2 / External interrupt
Digital pin 3 / Ext int or PWM
Digital pin 4
Digital pin 5 or PWM
Digital pin 6 or PWM
Digital pin 7
Digital pin 8
Digital pin 9 or PWM
Digital pin 10 or CS or PWM
Digital pin 11 or MOSI or PWM
Digital pin 12 or MISO
Digital pin 13 or SCK
Reference Ground
ADC voltage reference
Doc ID 022910 Rev 2
Connecting modules on the prototyping board
STM32F0DISCOVERY
NRST Reset discovery
3V VDD
5V VDD
GND Reference Ground
GND Reference Ground
VBAT Jumper to fit
STM32F0DISCOVERY
PC0 ADC_IN10
PC1 ADC_IN11
PC2 ADC_IN12
PC3 ADC_IN13
PC4 or PF7 ADC_IN14 or I2C2_SDA
PC5 or PF6 ADC_IN15 or I2C2_SCL
STM32F0DISCOVERY
PA3 USART2_RX
PA2 USART2_TX
PB12 EXTI (5V tolerant)
PB11 EXTI (5V tolerant) or TIM2_CH4
PA7 GPIO (3V tolerant)
PB9 TIM17_CH1
PB8 TIM16_CH1
PA6 GPIO (3V tolerant)
PA5 GPIO (3V tolerant)
PA4 TIM14_CH1
PA11 TIM1_CH4
PB5 SPI1_MOSI or TIM3_CH2
PB4 SPI1_MISO
PB3 SPI1_SCK
GND Reference Ground
NC Not connected
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