Project 19 Steam Sensor

1.Introduction
When there is drop or vapor adhered to sensing point of vapor sensor, MCU will get a feedback of analog signal from S signal pin of the sensor. You can read out the value from MCU to deduce whether it rains.
2.Hardware Required
Arduino board * 1
V5 Shield *1
USB Cable*1
Steam Sensor*1
Dupont Line*3
3.Circuit Connection

4.Sample Code
void setup()
{
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop()
{
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
Serial.println(sensorValue);
delay(1); // delay in between reads for stability
}
5.Result
After uploading the codes to REV4 board, open serial monitor, and you can see current value. Add drop on the sensing point and the analog value increases.