How to Build a Reliable MQTT I/O Controller with W5500 and Arduino Nano for Home Assistant
An Arduino Nano and W5500 create an MQTT-based 8-channel opto-isolated I/O controller with over 280 days of reported uptime.
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An Arduino Nano and W5500 create an MQTT-based 8-channel opto-isolated I/O controller with over 280 days of reported uptime.