The water vapor sensor is a sensor that uses humidity to detect the presence or absence of moisture, andArduino, xbee communication module, Arduino sensor expansion board V5.0Used together, it can detect whether it is raining. Place the sensor outdoors, when rain drops on the petal-shaped detection surface, the humidity will increase, and the voltage will increase, Arduino will know that it is raining, and with an MP3 module, then you can realize Classic bridge section, Tang Seng: “It''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s raining! Get your clothes fast! ”. In addition to detecting rain, fog and moisture can also be detected.
The water vapor sensor sensor can be found inVarious single-chip controllersApplication, especially inArduino controllerIt’s easier to pass3P sensor cablePlug inArduino dedicated sensor expansion boardAbove, interactive works related to environmental perception can be easily realized.
Water vapor sensor
Warning: The connector part is not waterproof, please be careful not to put the connector directly in the water. & nbsp; The S port is connected to the analog input pin of the controller. 5V and GND are respectively connected to +5V and GND of the power supply
1. Working voltage : 3.3V or 5V
2. Working current :<20mA
3. Working temperature range: -10℃~+70℃
4. Interface type: analog signal output
5. Size: 35mm x 23mm
6. Weight: 3g
7. Pin definition:S: Signal output +: Power (VCC) -: Ground (GND)