#include <Servo.h>
int relayInput = 27; int moistSensor = A10; Servo servo1; Servo servo2; 
enum Material {
  dry = 0, wet = 1, metal = 2, none = 4,
};
enum Material material = dry; int timer = -1; int wetTick = 0; int 
wetTickThreshold = 7; void setup() {
  pinMode(relayInput, INPUT); digitalWrite(relayInput, HIGH); 
  pinMode(moistSensor, INPUT); servo1.attach(8); servo2.attach(9); 
  servo1.write(180); servo2.write(90); Serial.begin(9600);
}
void loop() { int metalState = digitalRead(relayInput); int moistState = 
  analogRead(moistSensor); if (timer >= 0) {
    timer--;
  }
  if (timer == -1) { if (metalState == LOW) { servo1.write(135); 
      servo2.write(90); material = metal; timer = 120;
    } else {
      servo1.write(180); if (moistState <= 800) { wetTick++; if (wetTick 
        >= wetTickThreshold) {
          servo2.write(70); material = wet; timer = 100;
        }
      } else {
        wetTick = 0; servo2.write(90); material = dry;
      }
    }
  }
  delay(100); Serial.print("Moisture: "); Serial.print(moistState); 
  Serial.print("; Metal: "); Serial.print(metalState); Serial.print("; 
  Material: "); Serial.print(material); Serial.print("; Timer: "); 
  Serial.print(timer); Serial.print("; wetTick: "); 
  Serial.println(wetTick);
}