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5V dual use
and the load (heating coil or high voltage package) is connected before powering on
because of the heat sink
better original heat dissipation
Treedix 2pcs CJMCU-606 Raindrop Sensor Rainwater Detector Conductive Liquid Sensor Rain Detection Module 3.3V-5V Compatible with Arduino 5V dual useFeatures: The raindrop sensor is an analog (digital) input module, also called rainwater and rainfall sensor. It can be used to monitor various weather conditions, detect whether it is raining and the amount of rainfall. When the module detects water, the module output pin will output high level, and when there is no water, it will output a Vil. Users can choose to connect LEDs or other triggering devices to better show status when water is detected.
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