# Arduino Nano 33 BLE Sense Rev2 > Sensor-packed Nano board with nRF52840 ARM Cortex-M4F at 64MHz, BLE 5.0, 9-axis IMU, microphone, temperature, humidity, pressure, light, and gesture sensors — designed for TinyML and edge AI projects in a 45×18mm form factor. ## Quick Facts - **Brand:** Arduino - **Board Type:** dev-board - **Price:** ~$39.5 - **Product Readiness:** consumer - **CPU:** ARM Cortex-M4F @ 64MHz, FPU, DSP - **CPU Architecture:** ARM Cortex-M4F - **CPU Cores:** 1 - **RAM:** 256KB SRAM - **Flash:** 1MB - **USB:** Micro-USB - **Power:** 5V via Micro-USB or Vin - **Operating Voltage:** 3.3V - **Dimensions:** 45 × 18mm - **Weight:** 5g - **Antenna:** Built-in PCB antenna - **SD Card:** No ## Connectivity - **Bluetooth:** BLE 5.0 ## Open Source - **Firmware:** Yes - **Schematics:** Yes - **PCB Layout:** No ## Compatible Firmware arduino ## Use Cases - educational-platform - wearable - environmental-monitoring - iot ## Components - **nRF52840** (mcu): Nordic nRF52840 at 64MHz with FPU, DSP, 1MB flash, 256KB RAM, and multiprotocol radio supporting BLE 5.0, Thread, and Zigbee. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Finfocenter.nordicsemi.com%2Fpdf%2FnRF52840_PS_v1.1.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **BMI270** (accelerometer): Bosch BMI270 ultra-low-power 6-axis IMU with accelerometer and gyroscope for motion tracking and gesture recognition. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.bosch-sensortec.com%2Fmedia%2Fboschsensortec%2Fdownloads%2Fdatasheets%2Fbst-bmi270-ds000.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **BMM150** (sensor): Bosch BMM150 3-axis geomagnetic sensor for compass heading and magnetic field detection. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.bosch-sensortec.com%2Fmedia%2Fboschsensortec%2Fdownloads%2Fdatasheets%2Fbst-bmm150-ds001.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **MP34DT06JTR** (microphone): STMicroelectronics MP34DT06JTR omnidirectional digital MEMS microphone with PDM output for voice and audio capture. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.st.com%2Fresource%2Fen%2Fdatasheet%2Fmp34dt06j.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **HS3003** (sensor): Renesas HS3003 high-accuracy temperature and humidity sensor with I2C interface. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.renesas.com%2Fen%2Fdocument%2Fdst%2Fhs300x-datasheet&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **LPS22HB** (sensor): STMicroelectronics LPS22HB MEMS barometric pressure sensor with 24-bit output and I2C/SPI interface. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.st.com%2Fresource%2Fen%2Fdatasheet%2Flps22hb.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - **APDS-9960** (sensor): Broadcom APDS-9960 digital proximity, ambient light, RGB color, and gesture sensor with I2C interface. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.broadcom.com%2Fdoc%2FAV02-4191EN&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) ## Protocols - **SPI**: MOSI: D11, MISO: D12, SCK: D13 - **I2C**: SDA: A4, SCL: A5 - **UART**: TX: D1, RX: D0 ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | D0 | UART RX | UART | digital-input, digital-output | | D1 | UART TX | UART | digital-input, digital-output | | D2 | Digital I/O | | digital-input, digital-output, pwm | | D3 | Digital I/O | | digital-input, digital-output, pwm | | D4 | Digital I/O | | digital-input, digital-output, pwm | | D5 | Digital I/O | | digital-input, digital-output, pwm | | D6 | Digital I/O | | digital-input, digital-output, pwm | | D7 | Digital I/O | | digital-input, digital-output, pwm | | D8 | Digital I/O | | digital-input, digital-output, pwm | | D9 | Digital I/O | | digital-input, digital-output, pwm | | D10 | Digital I/O | | digital-input, digital-output, pwm | | D11 | SPI MOSI | SPI | digital-input, digital-output, pwm | | D12 | SPI MISO | SPI | digital-input, digital-output, pwm | | D13 | SPI SCK | SPI | digital-input, digital-output, pwm | | A0 | Analog Input | ADC | digital-input, digital-output, adc | | A1 | Analog Input | ADC | digital-input, digital-output, adc | | A2 | Analog Input | ADC | digital-input, digital-output, adc | | A3 | Analog Input | ADC | digital-input, digital-output, adc | | A4 | I2C SDA | I2C | digital-input, digital-output, adc | | A5 | I2C SCL | I2C | digital-input, digital-output, adc | | A6 | Analog Input | ADC | adc | | A7 | Analog Input | ADC | adc | ## Description ## Overview The Arduino Nano 33 BLE Sense Rev2 is a compact, sensor-rich development board built around the Nordic nRF52840 ARM Cortex-M4F running at 64MHz with 1MB flash, 256KB RAM, and Bluetooth LE 5.0. What makes it unique in the Nano family is its comprehensive onboard sensor suite — no external hardware needed to start building AI-powered projects. Integrated sensors include a 9-axis IMU (accelerometer, gyroscope, magnetometer), digital microphone, temperature and humidity sensor, barometric pressure sensor, proximity/light/gesture sensor, and color detection. This combination makes it ideal for TinyML applications using TensorFlow Lite Micro and Edge Impulse, enabling on-device gesture recognition, voice keyword detection, anomaly detection, and environmental classification. Operating at 3.3V logic with 14 digital I/O pins and 8 analog inputs, the board fits the standard Nano footprint for breadboard compatibility. It's the go-to board for anyone exploring machine learning on microcontrollers without the complexity of connecting multiple external sensors. ## Where to Buy - [Arduino Store (US)](https://openhardware.directory/r?to=https%3A%2F%2Fstore-usa.arduino.cc%2Fproducts%2Fnano-33-ble-sense-rev2&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) — $39.50 - [Arduino Store (EU)](https://openhardware.directory/r?to=https%3A%2F%2Fstore.arduino.cc%2Fproducts%2Fnano-33-ble-sense-rev2&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) — €43.40 - [DigiKey](https://openhardware.directory/r?to=https%3A%2F%2Fwww.digikey.com%2Fen%2Fproducts%2Fdetail%2Farduino%2FABX00069%2F18075936&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) — $44.00 - [Mouser](https://openhardware.directory/r?to=https%3A%2F%2Fwww.mouser.com%2FProductDetail%2FArduino%2FABX00069&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) — $44.00 - [Amazon US](https://openhardware.directory/r?to=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0CHBJNWQY&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) — $44.00 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fstore.arduino.cc%2Fproducts%2Fnano-33-ble-sense-rev2&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.arduino.cc%2Fhardware%2Fnano-33-ble-sense-rev2%2F&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.arduino.cc%2Fresources%2Fdatasheets%2FABX00069-datasheet.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) - [schematics](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.arduino.cc%2Fresources%2Fschematics%2FABX00069-schematics.pdf&ref=openhardware.directory&product=arduino-nano-33-ble-sense-rev2&source=md-export) ## Tags `arduino`, `nano`, `nrf52840`, `ble`, `tinyml`, `imu`, `sensors`, `edge-ai` ## Images ![Arduino Nano 33 BLE Sense Rev2](https://nbg1.your-objectstorage.com/openhardware-directory/entities/arduino-nano-33-ble-sense-rev2/ccced7b5a8b8.jpg) ![Arduino Nano 33 BLE Sense Rev2](https://nbg1.your-objectstorage.com/openhardware-directory/entities/arduino-nano-33-ble-sense-rev2/0a80f7bfa613.jpg) --- [View full device page](https://openhardware.directory/devices/arduino-nano-33-ble-sense-rev2)