This small, robust and powerful board has WiFi and Bluetoothconnectivity 

that combined with its low power architecture makes it apractical and cost effective solution for your connectedprojects. 

Arduino Nano 33 IoT is fully compatible with the Arduino IoTCloud and supports full TLS secure transport: 

the ATECC608A cryptochip stores the cryptographic keys inhardware, offering a very high level of security for this class ofproducts. 

he integration with the Arduino IoT Cloud offers also a veryefficient way of setting up online dashboards with little codingand minimal effort . 

In the same iconic size of the Arduino Nano, 

the Arduino Nano 33 IoT hosts an Arm Cortex-M0+ SAMD21processor, 

a WiFi and Bluetooth module based on ESP32, 

a 6 axis Inertial Measurement Unit (IMU) and a crypto chip whichcan securely store certificates and pre shared keys. 

The board can either be used in a breadboard (when mounting pinheaders), or as a SMT module, 

directly soldering it via the castellated pads.

Please note: Arduino Nano 33 IoT only supports 3.3V I/Os and isNOT 5V tolerant so 

please make sure you are not directly connecting 5V signals tothis board or it will be damaged. 

Also, as opposed to Arduino Nano boards that support 5Voperation, 

the 5V pin does NOT supply voltage but is rather connected,through a jumper, 

to the USB power input. To avoid such risk with existingprojects, 

where you should be able to pull out a Nano and replace it withthe new Nano 33 IoT, 

we have the 5V pin on the header, positioned between RST and A7that is not connected as default factory setting. 

This means that if you have a design that takes 5V from thatpin, 

it won’t work immediately, as a precaution we put in place todraw your attention to the 3.3V compliance on digital and analoginputs. 

5V on that pin is available only when two conditions aremet: 

you make a solder bridge on the two pads marked as VUSB and youpower the NANO 33 IoT through the USB port. 

If you power the board from the VIN pin, you won’t get anyregulated 5V and therefore even if you do the solderbridge, 

othing will come out of that 5V pin. The 3.3V, on the otherhand, is always available and supports enough current to drive yoursensors. 

Please make your designs so that sensors and actuators aredriven with 3.3V and work with 3.3V digital IO levels. 

5V is now an option for many modules and 3.3V is becoming thestandard voltage for electronic ICs. 

The communication on WiFi and Bluetooth is managed by a NINAW102 ESP32 based module.