Example project using Arduino Nano Matter, Modulino Thermo and Latch Relay publishing temperature and humidity to Matter with optional relay control

Official Hardware Nano Family Nano Matter
1

Hi everyone,

I created a working example using the Arduino Nano Matter with Modulino modules.

Hardware used:
• Arduino Nano Matter
• Nano Connector Carrier
• Modulino Thermo
• Modulino Latch Relay (optional)

The sketch publishes temperature and humidity to Matter and can optionally
control a relay based on a temperature threshold.

Full project and sketch available on GitHub:

Features:
• Matter temperature sensor
• Matter humidity sensor
• Optional thermostat-style relay control
• Reduced Matter traffic (values are only published when they change)

Notes from development:
• Modulino.begin() must be called before accessing modules
• Some Matter examples reuse the same device ID, so a previously
commissioned board may need to be decommissioned before uploading
a new sketch
• Google Home displays humidity as integer percentages

Hopefully this helps others getting started with the Nano Matter + Modulino ecosystem.

Feedback or improvements welcome!

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