Arduino ABX00031 - Debug; Mechanical Information; Board Outline and Mounting Holes

Arduino® Nano 33 BLE Sense
11 / 14 Arduino® Nano 33 BLE Sense Modified: 29/05/2023
Pin Function Type Description
15 VIN Power In Vin Power input
16 TX Digital USART TX; can be used as GPIO
17 RX Digital USART RX; can be used as GPIO
18 RST Digital Active low reset input (duplicate of pin 13)
19 GND Power Power Ground
20 D2 Digital GPIO
21 D3/PWM Digital GPIO; can be used as PWM
22 D4 Digital GPIO
23 D5/PWM Digital GPIO; can be used as PWM
24 D6/PWM Digital GPIO, can be used as PWM
25 D7 Digital GPIO
26 D8 Digital GPIO
27 D9/PWM Digital GPIO; can be used as PWM
28 D10/PWM Digital GPIO; can be used as PWM
29 D11/MOSI Digital SPI MOSI; can be used as GPIO
30 D12/MISO Digital SPI MISO; can be used as GPIO
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 Description
1 +3V3 Power Out Internally generated power output to be used as voltage reference
2 SWD Digital nRF52480 Single Wire Debug Data
3 SWCLK Digital In nRF52480 Single Wire Debug Clock
5 GND Power Power Ground
6 RST Digital In Active low reset input
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