int soil=32;
int led=4;
int threshold=400;
void setup(){
  pinMode(soil,INPUT);
  pinMode(led,OUTPUT);
  Serial.begin(9600);
}
void loop(){
  int g=analogRead(soil);
  Serial.println(g);
  if(g<threshold){
    Serial.println("Soil moisture is low");
    digitalWrite(led,1);
  }
  else{
    Serial.println("Soil moisture is Normal");
    digitalWrite(led,0);
  }
}