Name: Arduino Nano 33 BLE
Brand: Arduino
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Arduino® Nano 33 BLE

11 / 15 Arduino® Nano 33 BLE / Rev. 01 - 26/11/2021

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

1 +3V3 Power Out Internally generated power output to be used as voltage reference

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

Board layout

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Arduino Nano 33 BLE Specifications

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