Arduino has launched the Arduino Matter Discovery Bundle, an all-in-one development kit designed for building Matter-over-Thread smart home devices. The kit centers around the Arduino Nano Matter board, which features a Silicon Labs MGM240SD22VNA MCU with an Arm Cortex-M33 core running at 78 MHz, 1536 KB flash, and 256 KB RAM. The board supports Matter, Thread, Zigbee, Bluetooth 5.3, and Bluetooth Mesh over 2.4 GHz, with compatibility across Apple HomeKit, Google Home, Amazon Alexa, and Home Assistant.

The bundle includes a Nano Connector Carrier board measuring 4.3 cm (1.7 inches) by 2.8 cm (1.1 inches), which provides Grove and Qwiic interfaces, a microSD card slot, and switchable 3.3V or 5V I/O voltage. Three Modulino sensor nodes come in the box: a Latch Relay supporting up to 30V DC at 5A, a Distance module with a time-of-flight sensor capable of 0 to 1200 mm (0 to 47.2 inches) range, and a Thermo module for temperature and humidity sensing. All three connect via I²C using Qwiic connectors.

Arduino supports the bundle with both desktop and cloud-based development environments, including sample sketches for relay control and sensor integration built into the Matter library. The Nano Matter board is officially supported in Zephyr RTOS, the open-source real-time operating system that Arduino is adopting following Arm's discontinuation of Mbed support. Silicon Labs also debuted the Simplicity SDK for Zephyr at CES 2026, bringing production-grade support to the platform. The Arduino IDE runs natively on Linux alongside Windows and macOS, though users have reported some compatibility issues with the Nano Matter core on ARM64 Linux systems like Raspberry Pi 5.

The company offers a seven-chapter curriculum covering basic network deployment through advanced Matter features, with completion leading to an Arduino Certified Engineer credential.

The Arduino Matter Discovery Bundle is available now for $61 (€56) from the Arduino Store. More technical specifications and tutorials can be found on Arduino's documentation site, with the full announcement posted on the Arduino blog.