A water vapor sensor detects the presence of moisture using humidity. It can be used to determine whether it is raining. When placed outdoors, if raindrops fall on the petal-shaped detection area, the humidity increases, resulting in a higher output voltage. Besides detecting rain, it can also detect fog or water vapor.
Schematic Diagram
Module Parameters
Pin Descriptions:
| Pin Name | Description |
|---|---|
| G | GND (Power Input Ground) |
| V | VCC (Power Input Positive) |
| S | Analog Signal Pin |
Specifications:
- Supply Voltage: 3.3V / 5V
- Connection Method: 2.54mm Pin Header
- Mounting Method: Fixed with Double Screws