Soil Moisture Tester

// Soil moisture tester

// Set leds numbers
const int verde = 8;          
const int amarillo = 9;
const int rojo = 10;

// Set analog input
const int sensor = A0;

// Variable to store moisture value
int humedad = 0;

void setup() {
  
  //Set name as outputs
  pinMode(verde, OUTPUT);
  pinMode(amarillo, OUTPUT);
  pinMode(rojo, OUTPUT);

}

void loop() {

  humedad = analogRead(sensor); //take the lecture from the sensor

  if(humedad < 300) {             // If the moisture value is less than 300 lights on green led and turns off others.
    digitalWrite(verde, HIGH);
    digitalWrite(amarillo, LOW);
    digitalWrite(rojo, LOW);
    delay(1000);
  }

  else if(humedad > 300 && humedad < 600){    // If the moisture value is more than 300 but less that 600 lights on yellow led and turns off others..
    digitalWrite(verde, LOW);
    digitalWrite(amarillo, HIGH);
    digitalWrite(rojo, LOW);
    delay(1000);
  }

  else {                                    // Any value more than 600 lights on red led and turns off others.
    digitalWrite(verde, LOW);
    digitalWrite(amarillo, LOW);
    digitalWrite(rojo, HIGH);
    delay(1000);
    
  }
  delay(1000);    //Retardo de 1 segundo antes de iniciar el ciclo nuevamente.

}