Arduino Uno R4 WiFi controls Relay via Web

Learn how to use Arduino Uno R4 WiFi to control relay via Web, how to turn on/off a relay via web browser, how to program Arduino step by step. The tutorial provides the fundamentals that you can easily and creatively modify to achieve multiple relay control via the web and redesign the web UI.

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Arduino Uno R4 WiFi Home Automation: A DIY Local Web Server