Rain Drop Detection Sensor Module
                     
ADIY
 Rain  DropDetection  Sensor  Module  
ADIY
 Rain  DropDetection  Sensor  Module  
A rain  sensor  module  is  an  easy  tool  for  rain  detection.  It  can  be  used  as  a  switch  when  a  raindrop  falls
throughthe raining board or for measuring rainfall intensity. The module features, a rain board and a control
board that isseparateformoreconvenience,powerindicatorLEDandanadjustablesensitivitythroughapotentiometer.
ADIY
 Rain  DropDetection  Sensor  Module  
The  analogoutputis  usedin  thedetection  of  drops  in  the  amount  of  rainfall.  Connectedto  a  5Vp o w e r
s u p p l y , the LED wil turn on when induction board has no raindrop, and DO output is high. When dropping a little amountwater, DO output is low, the switch indicator wil turn on.
Brush off the water droplets, and when restored to theinitialstate,outputshighlevel.
ADIY
 Rain  DropDetection  Sensor  Module  
It  includes a  printed circuit  board (control  board)  that  collects  the raindrops.  As  raindrops are collected on
thecircuit  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
voltage ontheanalogpin. Acompletelydryboard,forexample, willcausethemoduletooutput 5V.
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