// Shaiful Danish Bin Shaiful Razmiza, 52224122335.
// Dzul Danish Ar-Rahman Bin Khairulaswari, 52224122563.

// Define Blynk template information
#define BLYNK_TEMPLATE_ID "TMPL6DQyQJdru"
#define BLYNK_TEMPLATE_NAME "ps3"
#define BLYNK_AUTH_TOKEN "mNZCOLlq3UvZIBXDzy8_VCXCEAqaqgtc"

// Include necessary library files
#define BLYNK_PRINT Serial
#include <BlynkSimpleEsp8266.h>
#include <ESP8266WiFi.h>

// WiFi credentials
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "FreePalestine_2.4G";  // Enter your WIFI name
char pass[] = "BatmanCeria";         // Enter your WIFI password

// Define sensor and output pin connections
int vibrationSensor = D0;
int soundSensor = D1;
int buzzerOutput = D2;
int ldrSensor = A0;
int ledgreenOutput = D6;
int ledyellowOutput = D7;
int ledredOutput = D8;

// Setup function runs once at the beginning
void setup() {

  // Initialize the Blynk library
  Blynk.begin(auth, ssid, pass);

  // Setup Sensors and Outputs
  Serial.begin(9600);
  pinMode(vibrationSensor, INPUT);
  pinMode(soundSensor, INPUT);
  pinMode(ldrSensor, INPUT);
  pinMode(buzzerOutput, OUTPUT);
  pinMode(ledgreenOutput, OUTPUT);
  pinMode(ledyellowOutput, OUTPUT);
  pinMode(ledredOutput, OUTPUT);
}

// Loop function runs continuously
void loop() {
  // Run the Blynk library
  Blynk.run();

  // Read sensor values
  int vibrationValue = digitalRead(vibrationSensor);
  int soundValue = digitalRead(soundSensor);
  int ldrValue = analogRead(ldrSensor);

  // Update Blynk app with sensor values
  Blynk.virtualWrite(V0, vibrationValue);
  Blynk.virtualWrite(V1, soundValue);
  Blynk.virtualWrite(V2, ldrValue);
  Blynk.virtualWrite(V3, digitalRead(ledgreenOutput));
  Blynk.virtualWrite(V4, digitalRead(ledredOutput));

  // Print sensor readings to Serial Monitor
  Serial.println(vibrationValue);
  Serial.println(soundValue);
  Serial.println(ldrValue);
  Serial.println(digitalRead(ledgreenOutput));
  Serial.println(digitalRead(ledredOutput));
  delay(500);

  // Check if any sensor is HIGH or LDR is more than 150
  if (vibrationValue == 1 || soundValue == 1 || ldrValue > 150) {
    // Call method to indicate the Washing Machine is in use.
    washingMachineOn();
  } else {
    // Buzzer on, LED red lights off. Blinking Yellow LED and LED green on.
    washingMachineOff();
  }
}

// Function to indicate the washing machine is ON
void washingMachineOn() {
  // Buzzer off, LED red lights up.
  noTone(buzzerOutput);
  digitalWrite(ledgreenOutput, LOW);
  digitalWrite(ledyellowOutput, LOW);
  digitalWrite(ledredOutput, HIGH);
}

// Function for blinking Yellow LED
void blinkingYellow() {
  // For loop statement, Yellow LED blinking 5 times
  for (int i = 0; i < 5; ++i) {
    tone(buzzerOutput, 500);
    digitalWrite(ledyellowOutput, HIGH);
    delay(500);
    noTone(buzzerOutput);
    digitalWrite(ledyellowOutput, LOW);
    delay(500);
  }

  // Turn off Blinking Yellow LED
  noTone(buzzerOutput);
  digitalWrite(ledyellowOutput, LOW);
  delay(5000);
}

// Function to indicate the washing machine is OFF
void washingMachineOff() {
  // Blinking Yellow LED
  blinkingYellow();

  // Buzzer off, LED red lights up, Green LED lights up.
  digitalWrite(ledredOutput, LOW);
  digitalWrite(ledyellowOutput, LOW);
  digitalWrite(ledgreenOutput, HIGH);
  delay(500);
}