int sensorPin = A2                                                                                                                                     ;
void setup (){
  Serial.begin(9600);
  delay(600);
}
void loop(){
  int sensorValue;
  sensorValue = analogRead(sensorPin);
  sensorValue = map(sensorValue,0,1023,0,100);
  Serial.print("Soil moisture:");
  Serial.print(sensorValue);
  Serial.println("%");
  delay(600);
}