Debug; Mechanical Information; Board Outline And Mounting Holes - Arduino ABX00031 Product Reference Manual

Pin Function Type
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

4.3 Debug

On the bottom side of the board, under the communication module, debug signals are arranged as 3x2 test pads with 100 mil pitch
with pin 4 removed. Pin 1 is depicted in Figure 3 – Connector Positions
Pin Function Type
1 +3V3 Power Out
2 SWD Digital
3 SWCLK Digital In
5 GND Power
6 RST Digital In

5 Mechanical Information

5.1 Board Outline and Mounting Holes

The board measures are mixed between metric and imperial. Imperial measures are used to maintain 100 mil pitch grid between pin
rows to allow them to fit a breadboard whereas board length is Metric
11 / 14
Description
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
Description
Internally generated power output to be used as voltage reference
nRF52480 Single Wire Debug Data
nRF52480 Single Wire Debug Clock
Power Ground
Active low reset input
Arduino® Nano 33 BLE Sense
Arduino® Nano 33 BLE Sense
Modified: 29/05/2023