const int RAIN_SENSOR = PA0;
const int RAIN_LED = PA5;

const int RAIN_THRESHOLD = 500;

void setup() {
  Serial.begin(115200);

  pinMode(RAIN_SENSOR, INPUT);
  pinMode(RAIN_LED, OUTPUT);

  analogReadResolution(10);

  Serial.println("STM32 Rain Detection System");
  Serial.println("System Started");
}

void loop() {
  int rainValue = analogRead(RAIN_SENSOR);

  Serial.print("Sensor Value: ");
  Serial.print(rainValue);

  if (rainValue < RAIN_THRESHOLD) {
    digitalWrite(RAIN_LED, HIGH);
    Serial.println(" | RAIN DETECTED");
  } else {
    digitalWrite(RAIN_LED, LOW);
    Serial.println(" | NO RAIN");
  }

  delay(500);
}