Arduino Nano 33 IOT - ABX00027
| ARDUINO NANO 33 IOT || (ABX00027 / with Headers) |+---------------------------+------------------------------------+| MCU | SAMD21 Cortex'M0+ 32bit @48MHz ||---------------------------|------------------------------------|| Memory | 256KB Flash, 32KB SRAM ||---------------------------|------------------------------------|| Wireless | Wi'Fi 802.11 b/g/n & Bluetooth BLE||---------------------------|------------------------------------|| Security | Crypto co'processor ATECC608A ||---------------------------|------------------------------------|| Operating Voltage | 3.3V logic ||---------------------------|------------------------------------|| Power Input | USB or external up to 21V ||---------------------------|------------------------------------|| Digital I/O | 14 pins ||---------------------ulse Pins | 11 PWM capable ||---------------------------|------------------------------------|| Analog In | 8 (ADC up to 12bit) ||---------------------------|------------------------------------|| Analog Out (DAC) | 1 10bit ||---------------------------|------------------------------------|| Built'in Sensor | 6axis IMU (Accelerometer + Gyro) ||---------------------------|------------------------------------|| Interfaces | UART, SPI, I2C &n-----------------|| USB | Native USB support ||---------------------------|------------------------------------|| Size | ~45mm 18mm, ~5g |+----------------------------------------------------------------+
Key Features Explained
Powerful 32bit Microcontroller
This board uses a 32bit ARM Cortex'M0+ SAMD21 processor running at 48MHz much more capable than classic 8bit Arduinos, enabling better performance for IoT tasks and embedded computation.
Integrated Wi'Fi & Bluetooth (BLE)
Bluetooth Low Energy (BLE)
enables communication with phones and sensors.
Connectivity is provided by a
u'blox NINA'W102
module, combining both wireless radios.
Built'in Security
The ATECC608A crypto chip stores keys and certificates securely on'board, helping ensure encrypted IoT communication (e.g., TLS connections).
Inertial Measurement Unit (IMU)
A 6axis IMU (accelerometer + gyroscope) allows you to sense motion, orientation, and dynamic physical changes without external sensors useful for gesture, robotics, wearable, and motion'triggered IoT applications.
Flexible I/O and Peripheral Support
14 digital pins for sensors, relays, and modules.
11 PWM outputs for servo/motor control.
h varying precision.
1 analog output (DAC) for smooth voltage control.
UART, SPI, I2C enable versatile communications.
Connectivity & Software
Works with the Arduino IDE and Arduino Cloud set up dashboards, remote controls, and data logging quickly. Includes native USB support via the SAMD21 useful for debugging and serial communication. Compatible with libraries like WiFiNINA, ArduinoBLE, and cloud SDKs for secure HTTPS connections.
Typical Use Cases
Connected environmental sensors send temperature, humidity, and other data to cloud dashboards. Smart home devices control lights, appliances, or locks via Wi'Fi or BLE apps. IoT controllers & gateways connect and manage remote devices.
Why It Matters
The Arduino Nano33IoT brings a compact, powerful IoT'ready platform to the classic Nano form factor with integrated wireless, security, motion sensing, and ample I/O all backed by the Arduino ecosystem for easy prototyping and deployment in connected applications.

