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Output Cable Length: USB Type C 35cm
but even if you do not have much experience
It is small in size
You can learn how to get the schematic diagram through this document: https://heltec-automation-docs
BEC Input:5V2A
Rain / Raindrop Detection Sensor Kit with Relay Module 2S Output Cable Length: USB TypeThe Rain Raindrops Detection sensor module can be used for both detecting rain and for measuring the intensity of rainfall. It includes a printed circuit board (control board) that collects the raindrops. As raindrops are collected on the circuit board, they create paths of parallel resistance that are measured via the op amp. The lower the resistance (or the more water), the lower the voltage output. Conversely, the less water, the greater the output
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