Name: Arduino UNO R4 Minima
Brand: Arduino
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Arduino® UNO R4 Minima

12 / 17 Arduino® UNO R4 Minima Modiﬁed: 19/06/2023

9.1 Analog

Pin Function Type Description

1 BOOT MD Mode selection

2 IOREF IOREF Reference for digital logic V - connected to 5V

3 Reset Reset Reset

4 +3V3 Power +3V3 Power Rail

5 +5V Power +5V Power Rail

6 GND Power Ground

7 GND Power Ground

8 VIN Power Voltage Input

9 A0 Analog Analog input 0 / DAC

10 A1 Analog Analog input 1 / OPAMP+

11 A2 Analog Analog input 2 / OPAMP-

12 A3 Analog Analog input 3 / OPAMPOut

13 A4 Analog Analog input 4 / I²C Serial Datal (SDA)

14 A5 Analog Analog input 5 / I²C Serial Clock (SCL)

9.2 Digital

Pin Function Type Description

1 SCL Digital I²C Serial Clock (SCL)

2 SDA Digital I²C Serial Datal (SDA)

3 AREF Digital Analog Reference Voltage

4 GND Power Ground

5 D13/SCK Digital GPIO 13 / SPI Clock

6 D12/CIPO Digital GPIO 12 / SPI Controller In Peripheral Out

7 D11/COPI Digital GPIO 11 (PWM) / SPI Controller Out Peripheral In

8 D10/CS Digital GPIO 10 (PWM) / SPI Chip Select

9 D9 Digital GPIO 9 (PWM~)

10 D8 Digital GPIO 8

11 D7 Digital GPIO 7

12 D6 Digital GPIO 6 (PWM~)

13 D5/CANRX0 Digital GPIO 5 (PWM~) / CAN Transmitter (TX)

14 D4/CANTX0 Digital GPIO 4 / CAN Receiver (RX)

15 D3 Digital GPIO 3 (PWM~)

16 D2 Digital GPIO 2

17 D1/TX0 Digital GPIO 1 / Serial 0 Transmitter (TX)

18 D0/TX0 Digital GPIO 0 / Serial 0 Receiver (RX)

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Arduino UNO R4 Minima Specifications

General