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Small green circuit board with castellated edges and pin headers

Arduino

Arduino Nano 33 IoT development board

SKU CH-PCY5-HYT37

Compact development board with Wi-Fi, Bluetooth, 6-axis IMU and hardware crypto for secure IoT projects

  • Compact IoT board fits breadboard or surface-mount designs
  • SAMD21 Cortex-M0+ processor handles connected applications
  • ESP32-based module adds Wi-Fi and Bluetooth connectivity
  • On-board 6-axis IMU enables motion-sensing projects
  • ATECC608A crypto chip stores keys for TLS security

Compact IoT board

The Arduino Nano 33 IoT is a small development board with built-in WiFi and Bluetooth connectivity. It uses a low-power Arm Cortex-M0+ SAMD21 processor and includes a 6-axis IMU for motion sensing. An ATECC608A cryptochip provides hardware-based security for certificates and keys. The board is fully compatible with the Arduino IoT Cloud platform.

Breadboard or SMT upgrade

This board replaces larger prototypes that need separate wireless modules and sensors. Its castellated pads allow direct surface-mount assembly, while pin headers suit breadboard use. The jump is worth it when a project demands secure cloud connectivity and inertial measurement in the classic Nano footprint. It suits makers moving from wired experiments to connected devices.

Sustained low-power operation

Under continuous load the low-power architecture maintains stable WiFi and Bluetooth links without excessive current draw. The hardware cryptochip handles TLS encryption efficiently, offloading the main processor during long cloud sessions. The 6-axis IMU streams data reliably for extended monitoring tasks. Thermal performance stays consistent in enclosed or battery-powered deployments.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 90% of the 1,420 comparable items (median $44.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What board size and mounting options does the Arduino Nano 33 IoT use?

It matches the classic Nano footprint and can be used on a breadboard with pin headers or surface-mounted via its castellated pads.

How do I connect the SAMD21 board to Arduino IoT Cloud, and what step is often missed?

Install the board package in the IDE, register the device in the cloud, and ensure the ATECC608A cryptochip provisions the certificates — skipping provisioning is the common error.

Which onboard component handles long-term secure key storage and may need attention if certificates expire?

The ATECC608A cryptochip stores keys in hardware; if certificates expire you must re-provision the chip through the Arduino IoT Cloud workflow.

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