int sensorPin = A0;


void setup() {
  Serial.begin(9600); // set up serial port for 9600 baud (speed)
  delay(500); // wait for display to boot up
}

void loop() {
  
  int sensorValue;
  sensorValue = analogRead(sensorPin);
  sensorValue = map(sensorValue, 0, 1023, 0, 100);
  Serial.print("Soil moisture: ");
  Serial.print(sensorValue);
  Serial.println(" %");
  
  delay(500); //wait for half a second, so it is easier to read
}