Arduino Nano 33 BLE Product Reference Manual page 10

Pin Function Type
1 D13 Digital
2 +3V3 Power Out
3 AREF Analog
4 A0/DAC0 Analog
5 A1 Analog
6 A2 Analog
7 A3 Analog
8 A4/SDA Analog
9 A5/SCL Analog
10 A6 Analog
11 A7 Analog
Power
12 VUSB
In/Out
13 RST Digital In
14 GND Power
15 VIN Power In
16 TX Digital
17 RX Digital
18 RST Digital
19 GND Power
20 D2 Digital
21 D3/PWM Digital
22 D4 Digital
23 D5/PWM Digital
24 D6/PWM Digital
25 D7 Digital
26 D8 Digital
27 D9/PWM Digital
28 D10/PWM Digital
29 D11/MOSI Digital
30 D12/MISO Digital
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Description
GPIO
Internally generated power output to external devices
Analog Reference; can be used as GPIO
ADC in/DAC out; can be used as GPIO
ADC in; can be used as GPIO
ADC in; can be used as GPIO
ADC in; can be used as GPIO
ADC in; I2C SDA; Can be used as GPIO (1)
ADC in; I2C SCL; Can be used as GPIO (1)
ADC in; can be used as GPIO
ADC in; can be used as GPIO
Normally NC; can be connected to VUSB pin of the USB connector by shorting a
jumper
Active low reset input (duplicate of pin 18)
Power Ground
Vin Power input
USART TX; can be used as GPIO
USART RX; can be used as GPIO
Active low reset input (duplicate of pin 13)
Power Ground
GPIO
GPIO; can be used as PWM
GPIO
GPIO; can be used as PWM
GPIO, can be used as PWM
GPIO
GPIO
GPIO; can be used as PWM
GPIO; can be used as PWM
SPI MOSI; can be used as GPIO
SPI MISO; can be used as GPIO
Arduino® Nano 33 BLE / Rev. 01 - 26/11/2021
Arduino® Nano 33 BLE