/*
StartDC
*/

int DC = 9;               // the PWM pin the DC motor is attached to
int Sensor = A5;          // the Analog Read pin to which the sensor is attached
int MoistureRead;         // sensor value read
int MoistureValue;        // calculated RH value from calibration
const int CriticalLO = 60;  // critical RH percentage to start the pump

void setup() {
  pinMode(DC, OUTPUT);
  pinMode(Sensor, INPUT);
  MoistureValue=70;       // initial value
  Serial.begin(9600);
}

void loop() {
  MoistureRead = analogRead(Sensor);         // read when wet
  MoistureValue = (798-MoistureRead)/3.75;   // values from calibration: 798=air, 424=water
  Serial.println(MoistureValue);
  while (MoistureValue < CriticalLO){
      analogWrite(DC, 70);
      delay(1000); 
      MoistureRead = analogRead(Sensor);     // read when dry
      MoistureValue = (798-MoistureRead)/3.75;
      Serial.println(MoistureValue);
   }
   
   analogWrite(DC, 0);
   delay(1000);
}