The New Arduino Nano 33 IoT Nano board

Arduino unveiled the new arduino nano 33 IoT board which is among the four new arduino boards coming out in mid-June. This small, powerful and robust board has WiFi and Bluetooth connectivity that combined with its low power architecture makes it a practical and cost effective solution for your connected projects.

Arduino Nano 33 IoT is fully compatible with the Arduino IoT Cloud and supports full TLS secure transport: the ATECC608A cryptochip stores the cryptographic keys in hardware, offering a very high level of security for this class of products. The integration with the Arduino IoT Cloud offers also a very efficient way of setting up online dashboards with little coding and minimal effort .

In the same small and portable size of the Arduino Nano, the Arduino Nano 33 IoT hosts an Arm Cortex-M0+ SAMD21 processor, a WiFi and Bluetooth module based on ESP32, a 6 axis Inertial Measurement Unit (IMU) and a crypto chip which can securely store certificates and pre shared keys. Just like the previous nano board it can either be used in a breadboard (when mounting pin headers), or as a SMT module, directly soldering it via the castellated pads. With headers mounted.


  1. This board is based on the SAMD21G18A microcontroller.
  2. Clock up to 48MHz
  3. Flash 256KB
  4. SRAM 32KB

Please note: Arduino Nano 33 IoT only supports 3.3V I/Os and is NOT 5V tolerant so please make sure you are not directly connecting 5V signals to this board or it will be damaged. Also, as opposed to Arduino Nano boards that support 5V operation, the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input. The communication on WiFi and Bluetooth is managed by a NINA W102 ESP32 based module.

Shipment of the product starts from July 2019, for more details or purchase of the Arduino Nano 33 IoT board