Arduino Nano 33 BLE Sense Rev2

The Arduino Nano 33 BLE Sense is an advanced upgrade to the classic Nano lineup, built around a modern low-power processor with integrated Bluetooth connectivity and onboard sensing. It supports Edge Computing through TinyML and TensorFlow Lite, enabling machine-learning models to run directly on the device without external hardware. Its compact Nano form factor, together with full compatibility with the Arduino IDE and specialized libraries, provides a reliable platform for wearable systems, gesture-controlled projects, and short-range interactive automation.

Features

- ARM Cortex-M4 Microcontroller optimized for embedded processing

- Bluetooth 5 Connectivity for reliable short-range communication

- Integrated 9-Axis IMU for motion and orientation sensing

- Environmental Sensor Suite for temperature, humidity, and pressure data

- Ambient Light and Gesture Sensor enabling proximity and color detection

- Digital MEMS Microphone for sound and voice-triggered applications

- 3.3 V Logic Operation suitable for wearable and low-power systems

- Compatible with Arduino IDE for seamless development and deployment

- Multi-Protocol Radio Support through Bluetooth Low Energy features

- Rich I/O Interfaces including SPI, I²C, UART, PWM, and ADC pins

- Onboard Power Regulation Circuit enabling stable 3.3 V operation

- Low-Power Operating Modes suitable for battery-driven applications

- Compact Nano Form Factor for embedded and wearable integration

- Dedicated Sensor Libraries supported within the Arduino ecosystem

- Local Machine Learning Support through TinyML and TensorFlow Lite

Specifications

- Microcontroller: nRF52840, ARM Cortex-M4F, 32-bit, 64 MHz

- Operating Voltage: 3.3 V

- I/O Logic Level: 3.3 V (not 5 V tolerant)

- Flash Memory: 1 MB

- SRAM: 256 KB

- Digital I/O Pins: 14

- Analog Input Pins (ADC): 8 (12-bit resolution)

- PWM Capable Pins: All digital I/O pins

- Communication Interfaces: 1 × UART, 1 × SPI, 1 × I²C

- USB Interface: Micro-USB with native support via nRF52840

- Max DC Current per I/O Pin: 15 mA

- Dimensions: 45 × 18 mm

- On-Board Sensors: 9-axis IMU, barometric pressure sensor, temperature & humidity sensor, ambient light/color/proximity/gesture sensor, digital MEMS microphone

- Supported Platform: Arduino IDE (online and offline)

Links

- Arduino Nano 33 BLE Sense Rev2 Development Board 3D Model

- Arduino Nano 33 BLE Enclosure

- "nRF52840" microcontroller Datasheet

Toutrials

- Machine Learning on Arduino BLE Sense

- Arduino Nano 33 BLE Sense - Setup, Demo and Explanation (Libraries Installation)