//Access: https://wokwi.com/projects/361151259376611329

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Serial.begin(115200);
  pinMode(13, OUTPUT);
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.display();
}

void loop() {
  // Step 1: Display "Please say '1 2 3' for Identity Verification"
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 15);
  display.println("Voices Confirmation");
  display.setCursor(0, 25);
  display.println("for Password and");
  display.setCursor(0, 35);
  display.println("Identity Verification");
  display.display();
  delay(3000);
  display.clearDisplay();
  
  // Step 2: Display "Step 1 Voice confirmation"
  display.setCursor(0, 25);
  display.println("Step 1");
  display.setCursor(0, 35);
  display.println("Voice confirmation:");
  display.display();
  delay(4000);
  display.clearDisplay();

  // Step 3: Read mic value
  int micvalue = analogRead(A0);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);

  // Step 4: Check mic value
  if (micvalue >= 525 && micvalue <= 545){
    // Password is correct
    display.clearDisplay();
    display.setCursor(0, 30);
    display.println("Password is correct");
    display.display();
    delay(2000);
    
    // Step 5: Display "Step 2 Voice confirmation"
  display.clearDisplay();
  display.setCursor(0, 25);
  display.println("Step 2");
  display.setCursor(0, 35);
  display.println("Voice confirmation:");
  display.display();
  delay(4000);
  display.clearDisplay();

    // Step 6: Read mic value again
  micvalue = analogRead(A0);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);

    // Step 7: Check mic value again
    if (micvalue >= 500 && micvalue <= 525) {
      // Password is correct
      display.clearDisplay();
      display.setCursor(0, 30);
      display.println("Password is correct");
      display.display();
      delay(2000);

      // Step 8: Display "Step 3 Voice confirmation"
      display.clearDisplay();
  display.setCursor(0, 25);
  display.println("Step 3");
  display.setCursor(0, 35);
  display.println("Voice confirmation:");
  display.display();
  delay(4000);
  display.clearDisplay();

      // Step 9: Read mic value again
  micvalue = analogRead(A0);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);
  delay(200);
  Serial.println(micvalue);

      // Step 10: Check mic value again
      if (micvalue >= 495 && micvalue <= 515) {
        // Access granted
        display.clearDisplay();
        display.setCursor(21, 30);
        display.println("Access Granted");
        display.display();
        delay(10000);
        display.clearDisplay();

      } else {
        // Mic value is incorrect
        display.clearDisplay();
        display.setCursor(0, 30);
        display.println("Try again");
        display.display();
        delay(3000);
        display.clearDisplay();
      }
    } else {
      // Mic value is incorrect
      display.clearDisplay();
      display.setCursor(0, 30);
      display.println("Try again");
      display.display();
      delay(3000);
      display.clearDisplay();
    }
  } else {
    // Mic value is incorrect
    display.clearDisplay();
    display.setCursor(0, 30);
    display.println("Try again");
    display.display();
      delay(3000);
      display.clearDisplay();
  }
}