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This water vapor sensor uses humidity to detect the presence of moisture, and can detect whether it is raining. Place the sensor outdoors. When raindrops fall on the petal-shaped detection position, the humidity will increase and the output voltage will also increase. In addition to detecting rain, it can also detect fog.
The push sensor is a digital switch input module for Arduino learning. Through programming, it can realize light control, sounder control, LCD display button selection function, etc. The five-color button caps meet your needs in all scenarios. They are beautiful and practical, and feel comfortable. The button sensors can be applied on various microcontroller controllers, especially on Arduino controllers. It is easier to plug into the Arduino dedicated sensor through a 3P sensor cable. On the expansion board, when the button is pressed, it outputs high level. This button sensor has five colors to choose from, red, blue, green, black, and white. When the button is pressed, it is low level, and when the button is released, it is high. level.
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