When a circuit has to be controlled (turned on and off) by an independent low-power signal for example the digital I/O pin of a microcontroller. From the technical specifications table you see that a coil voltage of 5V can switch a maximum voltage of 250 V AC. ESP8266 WeMos D1 Mini: 5V; To control the relay module we can use a 3.3V digital In this tutorial you will learn how to turn a Wemos D1 Mini into a web server using the Arduino IDE. If you prefer using Python then you can also use MicroPython, check out this tutorial instead. This is a basic implementation which is suitable for beginners or anyone who wants a quick and easy web server running on their ESP8266. {"payload":{"allShortcutsEnabled":false,"fileTree":{"examples/02.Special/Wire/I2C_Scanner":{"items":[{"name":"I2C_Scanner.ino","path":"examples/02.Special/Wire/I2C ESP8266 Simple WiFi Example Project How to Test the ESP8266 WiFi Connection Conclusion Article Updates Prerequisite You will of course need a Wemos D1 Mini board, USB cable and a Mac/Linux/Windows machine to connect it to. Experience with Arduino is advantageous but not essential. Dịch Vụ Hỗ Trợ Vay Tiền Nhanh 1s.

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