Tier 1
Arduino Nano 33 BLE Sense Rev2
The classroom board: sensors onboard, zero wiring.
What it can sense
| Signal | Support | Notes |
|---|---|---|
| Motion | Supported | Onboard |
| Sound | Supported | Onboard mic |
| Sensor values | Supported |
Before you choose it: setup on your computer
No admin needed. Uploading resets the board into its bootloader automatically.
Checked on the real part
On 1 October 2026 we generated a reference model for this board and ran it on the board itself. It gave the same answer as our server on 32 of 32 test windows.
Specifications
- Processor
- Cortex-M4F @64 MHz (nRF52840)
- Memory
- 256 KB
- Flash
- 1 MB internal
- Sensors onboard
- BMI270 IMU + BMM150 mag + MP34DT06 PDM mic + baro/temp/light
- Connectivity
- BLE only — no Wi-Fi
- USB
- USB CDC (nRF52840 USBD)
- Usual toolchain
- arduino-cli + ArduinoCore-mbed
- Kernels
- CMSIS-NN (M4 DSP ext)
These are the manufacturer's datasheet figures, not yet measured on our bench.
Build a model for the Arduino Nano 33 BLE Sense Rev2
Collect and train for free, then download the code for this board.