Processor; Crypto - Arduino ABX00031 Product Reference Manual

Ref. Description
U5 APDS-9660 Ambient Module
Bottom:
Ref. Description
SJ1 VUSB Jumper
SJ3 3v3 Jumper

2.2 Processor

The Main Processor is a Cortex M4F running at up to 64MHz. Most of its pins are connected to the external headers, however some are
reserved for internal communication with the wireless module and the on-board internal I
NOTE: As opposed to other Arduino Nano boards, pins A4 and A5 have an internal pull up and default to be used as an I
usage as analog inputs is not recommended.

2.3 Crypto

The crypto chip in Arduino IoT boards is what makes the difference with other less secure boards as it provides a secure way to store
secrets (such as certificates) and accelerates secure protocols while never exposing secrets in plain text.
Source code for the Arduino Library that supports the Crypto is available [8]
6 / 14
Arduino® Nano 33 BLE Sense
Board topology bot
Ref.
SJ2
SJ4
Arduino® Nano 33 BLE Sense
Ref. Description
DL2 Led Power
Description
D7 Jumper
D8 Jumper
2
C peripherals (IMU and Crypto).
2
C Bus so
Modified: 29/05/2023