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Arduino Nano 33 IoT | WiFi & Bluetoot
Product Overview
The Arduino Nano 33 IoT from Pro Tronix is designed to make IoT development accessible and secure. While it shares the same pinout as the original Nano, it replaces the old 8-bit chip with a significantly faster 32-bit ARM Cortex-M0+ (SAMD21) processor.
This board is a “pico-network” powerhouse, featuring a u-blox NINA-W102 module that handles both WiFi and Bluetooth (BLE). To ensure your data stays safe when connecting to the cloud, it includes a dedicated ECC608A crypto-chip for hardware-based security. With its built-in 6-axis IMU, it can track motion and orientation without any extra components, making it perfect for tiny, smart devices that need to talk to the internet.
Technical Specifications
| Feature | Specification |
| Microcontroller | SAMD21 Cortex-M0+ 32-bit Low Power ARM |
| Radio Module | u-blox NINA-W102 (WiFi / BT / BLE) |
| Secure Element | ATECC608A Crypto-chip |
| Operating Voltage | 3.3V (Pins are NOT 5V tolerant) |
| Clock Speed | 48 MHz |
| Digital I/O Pins | 14 |
| PWM Pins | 11 |
| Analog Input Pins | 8 (12-bit ADC) |
| Analog Output Pins | 1 (10-bit DAC) |
| IMU | 6-axis (LSM6DS3) |
| Flash / SRAM | 256 KB / 32 KB |
| Supplier | Pro Tronix |
Key Features
Native IoT Integration: Fully compatible with the Arduino IoT Cloud, allowing you to create web-based dashboards and control your board remotely in minutes.
3.3V Low Power Design: Optimized for battery efficiency, though it can accept up to 21V through the VIN pin thanks to its high-efficiency DC-DC converter.
Hardware Security: The crypto-chip ensures secure TLS connections to AWS, Azure, and Google Cloud, keeping your WiFi credentials and data encrypted.
Motion Ready: The onboard IMU (accelerometer + gyroscope) is ready to detect tilt, vibration, or movement out of the box.
Dual-Mount Design: Features castellated pads, meaning you can either solder on headers for breadboarding or solder the board directly onto a larger PCB as a SMT component.
Common Applications
Connected Wearables: Building smart watches or fitness trackers that sync data via Bluetooth.
Smart Home Sensors: Monitoring home temperature or humidity and uploading it to a cloud dashboard.
Simple Robotics: Using the IMU for balancing robots or vibration alarms.
Bluetooth Control: Creating a device that can be controlled via a custom app on your smartphone.
⚠️ Critical Note: This board operates at 3.3V. Unlike the classic Nano, it is NOT 5V tolerant. Connecting 5V sensors or power directly to the I/O pins will permanently damage the board.
You can see our available Nano series and IoT solutions from here: Development Boards | Pro Tronix
