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並前往https://www.instructables.com/IoT-Lamp-With-ESP32-Adafruit-MQTT-and-Relay-Module/

IoT Lamp With ESP32, Adafruit MQTT and Relay Module

1. ESP32 dev kit (in this project the Doit ESP32 devkit V1 was used) Breadboard 1 Push button 1 kΩ resistor Wires Relay module (only 1 channel required) Breadboard power supply Note: In this project I used Doit ESP32 Devkit V1, but you can u… 2. Note: If you do not already have an Adafruit account, you must first register. In this project I used the free account. https://io.adafruit.com/ After ... 3. Insert ESP32 in the breadboard. Connect ESP32 3V3 pin to the (+) rail of breadboard. Connect ESP32 GND to the (-) rail of breadboard. Join (only) the ...

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