The Nano Every is Arduino's 5V compatible board in the smallest available form factor: 45x18mm! The Arduino Nano is the board of choice for many projects that require a small and easy to use microcontroller board. Its small footprint and low price make the Nano Every particularly suitable for wearable inventions, low-cost robotics, electronic musical instruments, and general use to control smaller parts of larger projects. The Arduino Nano Every is an evolution of the traditional Arduino Nano board, but features a more powerful processor, the ATMega4809. This allows you to create larger programs than with the Arduino Uno (it has 50% more program memory) and with many more variables (the RAM is 200% larger). Based on the ATMega4809 AVR processor, the Arduino Nano Every is flexible to apply to different projects. It includes a SAMD11 ARM Cortex M0+ processor that functions as a powerful USB-to-serial converter. It can be reprogrammed by advanced users. The new processor has more memory and new peripherals, it is still suitable for 5V. Thanks to the added memory it is suitable for more complex applications. And the new peripheral set, which includes a second serial port, allows communication with a PC and with peripherals such as a wireless interface or a GPS. The new power supply architecture based on a highly efficient DC-DC converter makes it possible to supply the card with power up to 21V.

The Nano form factor has been a crowd pleaser among makers for years due to its small footprint and ease of integration into any project. The inclusion of an ECC608A crypto chip means it also offers IoT security features not usually available at such a low price. The Arduino offers secure Wi-Fi and Bluetooth connectivity with a 6-axis IMU. It has a certified module with an external processor that ensures RF compliance is maintained when writing application code.
Thanks to the built-in DC-DC power supply, the card can be powered up to 21V, with high efficiency and many external devices without overheating. This is a great improvement over other products on the market that have LDO and heat up quite a bit when powered at high voltages.
The main processor of the board is a low-power Arm® Cortex®-M0 32-bit SAMD21. WiFi and Bluetooth® connectivity is carried out by a module from u-blox, the NINA-W10, a low-power chipset operating in the 2.4 GHz range. In addition, secure communication is ensured by the Microchip® ECC608 crypto chip. In addition, you can find a 6-axis IMU, which makes the board perfect for simple vibration alarm systems, pedometers, relative positioning of robots.
The communications chipset on the Nano 33 IoT can be both a BLE and Bluetooth® client and host device. If you want to see how easy it is to create a Bluetooth® central unit or peripheral, check out the examples at the ArduinoBLE library .

Arduino Nano 33 BLE

The Nano 33 BLE Sense (with headers) is Arduino's 3.3V AI board in the smallest available form factor: 45x18mm! The Arduino Nano 33 BLE Sense is a completely new board with a familiar form factor. It comes with a range of built-in sensors:

• 9-axis inertial sensor: what makes this board ideal for wearable devices
• humidity and temperature sensor: for highly accurate measurements of environmental conditions
• barometric sensor: you could make a simple weather station
• microphone: to capture and analyze sound in real time
• gesture, proximity, light color and light intensity sensor: estimates the brightness of the room, but also whether someone is moving near the board

The Arduino Nano 33 BLE Sense is an evolution of the traditional Arduino Nano, but with a much more powerful processor, the nRF52840 from Nordic Semiconductors and a 32-bit ARM® Cortex™ -M4 CPU running at 64 MHz. This allows you to create larger programs than with the Arduino Uno . The main processor includes other amazing features such as Bluetooth® pairing via NFC and very low power consumption. The main feature of this board, besides the impressive selection of sensors, is the ability to run Edge Computing (AI) applications on it using TinyML. You can create your machine learning models with TensorFlow™ Lite and upload them to your board using the Arduino IDE. The communication chipset on the Nano 33 BLE can be both a BLE and Bluetooth® client and host device. Something quite unique in the world of microcontroller platforms. If you want to see how easy it is to create a Bluetooth® central unit or peripheral, check out the examples in our ArduinoBLE library . If you have used Arduino Nano in your projects in the past, the Nano 33 BLE is a pin-equivalent alternative. Your code will still work, but remember that it operates at 3.3V. This means you will have to revise the original design in case it is not 3.3V compatible. Other than that, the main differences from the classic Nano are: a better processor, a micro USB connector and a 9-axis IMU.