// Week 6: Electronics Design & Simulation
// HigiBox - Hygiene Product Dispenser Prototype
// Button counter with LED feedback
// XIAO ESP32-S3 Microcontroller

#define BUTTON_PIN D4
#define LED_PIN D3

int count = 0;

void setup() {
  Serial.begin(115200);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  
  Serial.println("Hello world!");
  Serial.println("Hygiene dispenser ready!");
  Serial.println("Counter: 0/10");
}

void loop() {
  if (digitalRead(BUTTON_PIN) == LOW) {
    count++;
    
    // LED blinks 3 times as confirmation
    for (int i = 0; i < 3; i++) {
      digitalWrite(LED_PIN, HIGH);  
      delay(200);
      digitalWrite(LED_PIN, LOW);   
      delay(200);
    }
    
    if (count >= 10) {
      Serial.println("✅ Dispenser activated!");
      Serial.println("⚠️  Limit reached! Resetting...");
      count = 0;
      Serial.println("Counter: 0/10");
    } else {
      Serial.println("✅ Dispenser activated!");
      Serial.print("Counter: ");
      Serial.print(count); 
      Serial.println("/10");
    }
    
    delay(500);  // Debounce delay
  }
}