Moisture sensor on pin A0 and RGB LED on pins 13, 11, 10 with GND on pin 12

PiantaIntelligenteSummerVersion.ino

int rPin = 13;
int gndPin = 12;
int gPin = 11;
int bPin = 10;



void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("ciao");
  pinMode(rPin, OUTPUT);
  pinMode(gPin, OUTPUT);
  pinMode(bPin, OUTPUT);
  pinMode(gndPin, OUTPUT);

  digitalWrite(gndPin, LOW);

  digitalWrite(rPin, HIGH);
  delay(1000);
  digitalWrite(rPin, LOW);
  digitalWrite(gPin, HIGH);
  delay(1000);
  digitalWrite(gPin, LOW);
  digitalWrite(bPin, HIGH);
  delay(1000);
  digitalWrite(bPin, LOW);


}

void setColor(int r, int g, int b) {
  int red = map(r, 0, 255, LOW, HIGH);
  int green = map(g, 0, 255, LOW, HIGH);
  int blue = map(b, 0, 255, LOW, HIGH);

  digitalWrite(rPin, red);
  digitalWrite(gPin, green);
  digitalWrite(bPin, blue);
}

void loop() {
  // put your main code here, to run repeatedly:
  int val = analogRead(A0);
  Serial.println(val);
  if (val < 10) {
    setColor(255, 0, 0);

  } else if (val >= 10 && val < 500) {
    setColor(0, 255, 0);
  } else if (val > 500) {
    setColor(0, 0, 255);
  }
  
  delay(100);
}