The Nano 33 BLE Sense (without headers) rev 2 is Arduino’s 3.3V AI enabled board in the smallest available form factor: 45x18mm!

The Arduino Nano 33 BLE Sense rev 2 is a board on a well-known form factor. It comes with a series of embedded sensors:

  • humidity, and temperature sensor: to get highly accurate measurements of the environmental conditions
  • barometric sensor: you could make a simple weather station
  • microphone: to capture and analyse sound in real time
  • gesture, proximity, light color and light intensity sensor : estimate the room’s luminosity, but also whether someone is moving close to the board
  • Addition of VUSB soldering jumper on the top side of the board.
  • New test point for USB on the bottom side.
  • New test point for SWDIO and SWCLK on the top and bottom side of the board.

The Arduino Nano 33 BLE Sense is an evolution of the traditional Arduino Nano, but featuring a lot more powerful processor, the nRF52840 from Nordic Semiconductors, a 32-bit ARM® Cortex®-M4 CPU running at 64 MHz. This will allow you to make larger programs than with the Arduino Uno (it has 1MB of program memory, 32 times bigger), and with a lot more variables (the RAM is 128 times bigger). The main processor includes other amazing features like Bluetooth® pairing via NFC and ultra low power consumption modes.


Embedded Artificial Intelligence

The main feature of this board, besides the impressive selection of sensors, is the possibility of running Edge Computing applications (AI) on it using TinyML. You can create your machine learning models using TensorFlow™ Lite and upload them to your board using the Arduino IDE.

Arduino’s developer Sandeep Mistry and Arduino’s advisor Dominic Pajak have prepared an introductory tutorial to AI on the Nano 33 BLE Sense, but also a more advanced guide on color detection.


An Improved Arduino Nano

If you used Arduino Nano in your projects in the past, the Nano 33 BLE Sense is a pin-equivalent substitute. Your code will still work, but remember, it operates at 3.3V. This means that you need to revise your original design in case it is not 3.3V compatible. Besides that, the main differences to the classic Nano are: a better processor, a micro-USB connector, and all of the sensors mentioned above.

You can get the board with or without headers, what will allow you embedding the Nano inside any kind of inventions, including wearables. The board comes with tessellated connectors and no components on the B-side. These features allow you to solder the board directly onto your own design, minimizing the height of your whole prototype.

Oh, and did we mention the improved price? Thanks to a revised manufacturing process, the Arduino Nano 33 BLE Sense is really cost efficient … what are you waiting for? Upgrade now!


Bluetooth® and Bluetooth® Low Energy

The communications chipset on the Nano 33 BLE Sense can be both a Bluetooth® Low Energy and Bluetooth® client and host device. Something pretty unique in the world of microcontroller platforms. If you want to see how easy it is to create a Bluetooth® central or a peripheral device, explore the examples at our ArduinoBLE library.

* For applications using the Arduino_HTS221 library, customers must use Arduino_HS300X instead.
* For applications using the Arduino_LSM9DS1 library, customers must use Arduino_BMI270_BMM150 instead.


Getting Started

The Getting Started section contains all the information you need to configure your board, use the Arduino Software (IDE), and start tinkering with coding and electronics.

 

Tech specs

The Arduino Nano 33 BLE Sense is based on the nRF52840 microcontroller.

Microcontroller nRF52840 (datasheet)
Operating Voltage 3.3V
Power supply MP2322
Input Voltage (limit) 21V
DC Current per I/O Pin 15 mA
Clock Speed 64MHz
CPU Flash Memory 1MB (nRF52840)
SRAM 256KB (nRF52840)
EEPROM none
Digital Input / Output Pins 14
PWM Pins all digital pins
UART 1
SPI 1
I2C 1
Analog Input Pins 8 (ADC 12 bit 200 ksamples)
Analog Output Pins Only through PWM (no DAC)
External Interrupts all digital pins
LED_BUILTIN 13
USB Native in the nRF52840 Processor
IMU 2 IMUs (BMI270 - 6 axis IMU and BMM150 - 3 axis IMU).
Microphone MP34DT05 (datasheet)
Gesture, light, proximity APDS9960 (datasheet)
Barometric pressure LPS22HB (datasheet)
Temperature, humidity HS3003
Length 45 mm
Width 18 mm
Weight 5 gr (with headers)



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