#define LIGHT_PIN B0
#define FAN_PIN   B1

#define LDR_PIN   A0
#define TEMP_PIN  A1
#define PIR_PIN   A2

void setup() {
  pinMode(LIGHT_PIN, OUTPUT);
  pinMode(FAN_PIN, OUTPUT);

  pinMode(LDR_PIN, INPUT);
  pinMode(TEMP_PIN, INPUT);
  pinMode(PIR_PIN, INPUT);

  Serial1.begin(115200);

  digitalWrite(LIGHT_PIN, LOW);
  digitalWrite(FAN_PIN, LOW);

  Serial1.println("================================");
  Serial1.println(" SMART HOME AUTOMATION SYSTEM");
  Serial1.println(" STM32 BLUE PILL");
  Serial1.println("================================");
}

void loop() {

  int ldrValue = analogRead(LDR_PIN);
  int tempValue = analogRead(TEMP_PIN);
  int pirValue = digitalRead(PIR_PIN);

  Serial1.print("LDR = ");
  Serial1.print(ldrValue);

  Serial1.print(" | TEMP ADC = ");
  Serial1.print(tempValue);

  Serial1.print(" | MOTION = ");
  Serial1.println(pirValue);

  // Automatic light
  if (ldrValue > 600) {
    digitalWrite(LIGHT_PIN, HIGH);
  } else {
    digitalWrite(LIGHT_PIN, LOW);
  }

  // Automatic fan demonstration
  if (tempValue > 600) {
    digitalWrite(FAN_PIN, HIGH);
  } else {
    digitalWrite(FAN_PIN, LOW);
  }

  delay(1000);
}