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Small green circuit board with gold headers and tiny chips

Arduino

Arduino ABX00070 Nano 33 BLE Sense Rev2 development board

SKU CH-642A-RGSXN

Tiny 3.3 V board with IMU, microphone and environmental sensors runs TinyML models for gesture and voice recognition

  • AI-enabled microcontroller runs TinyML models on-device
  • Comprehensive sensor suite includes IMU, microphone, environmental sensors
  • Compact 3.3V form factor suits wearable prototypes
  • Edge computing processes data locally without cloud
  • Flexible connectivity options for IoT integration

Compact AI IoT development board

The Arduino Nano 33 BLE Sense Rev2 is a 3.3V microcontroller board built for TinyML and edge AI projects. Its small form factor suits wearable prototypes and space-constrained smart devices. Developers can run TensorFlow Lite models locally for gesture, voice or motion recognition without cloud dependence.

Pre-soldered headers simplify first use

The board ships with headers already fitted, so you can plug it directly into a breadboard or custom PCB without soldering. Take care to power it only from a 3.3V source; applying 5V to the I/O pins can damage the onboard sensors and radio module.

Bluetooth Low Energy sets the wireless range

The board communicates via Bluetooth Low Energy, which limits reliable data exchange to short distances and low throughput. It is not suited for high-bandwidth streaming or long-range sensor networks. Projects needing continuous cloud sync or Wi-Fi connectivity will require an additional radio module.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $32.99
Cheaper than about 67% of the 1,420 comparable items (median $44.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the 3.3V board is running my AI model correctly after setup?

Upload a simple TensorFlow Lite sketch that reads the IMU or microphone; the on-board LED will blink or serial output will stream each inference result, confirming the edge-computing pipeline works.

Which headers and sensors are already on the ABX00070 and what must I add?

The board ships with headers soldered and includes an IMU, microphone, temperature, humidity, light, color and pressure sensors — no extra modules are required for gesture, voice or environmental projects.

Should I choose the Rev2 33 BLE Sense or an older 70 variant for TinyML wearables?

The Rev2 33 BLE Sense adds the full sensor suite and TensorFlow Lite support in the same compact form factor, making it the appropriate choice for new wearable AI prototypes.

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