2_tashu.ino

#include<LiquidCrystal.h>
#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>

LiquidCrystal lcd(11,10,9,8,7,6);
SoftwareSerial mySerial(2, 3);

#define sw1 A0
#define sw2 A1
#define sw3 A2
#define sw4 17
#define sw5 18

Adafruit_Fingerprint finger=Adafruit_Fingerprint(&mySerial);
int id =0;
int vote1=0;
int vote2=0;
int vote3=0;
int vote4=0;

/**int fingerinput()
{
  lcd.clear(); 
  lcd.setCursor(0, 0);  
  delay(1000);
  lcd.print("Please place your"); 
  lcd.setCursor(0,1);
  lcd.print("finger");

  id = getFingerprintIDez();
  return id;
}**/

void setup()
{
  pinMode(sw1, INPUT); //setting all the buttons to receive input
  pinMode(sw2,INPUT);
  pinMode(sw3,INPUT);
  pinMode(sw4,INPUT);
  pinMode(sw5,INPUT);
  pinMode(13,OUTPUT); //probably to control the lcd
  pinMode(12,OUTPUT); //led output

  Serial.begin(9600);
  while (!Serial);  // For Yun/Leo/Micro/Zero/...
  delay(100);
  Serial.println("\n\nAdafruit finger detect test");

  finger.begin(57600);

  if (finger.verifyPassword()) 
  {
    Serial.println("Found fingerprint sensor!");
  } 
  else 
  {
    Serial.println("Did not find fingerprint sensor :(");
    while (1) 
    {
      delay(1); 
    }
  }

  finger.getTemplateCount();
  Serial.print("Sensor contains "); Serial.print(finger.templateCount); Serial.println(" templates");
  Serial.println("Waiting for valid finger...");

  lcd.begin(16, 2);
  lcd.setCursor(0,0);
  //delay(3000);
  lcd.print(" VOTING MACHINE ");
  lcd.setCursor(0,1);
  lcd.print("  LCD DISPLAY");
  delay(3000);
  digitalWrite(sw1, HIGH); //ensuring all buttons are initialised to high state
  digitalWrite(sw2, HIGH);
  digitalWrite(sw3, HIGH);
  digitalWrite(sw4, HIGH);
  digitalWrite(sw5, HIGH);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(" A");
  lcd.setCursor(4,0);
  lcd.print(" B");
  lcd.setCursor(8,0);
  lcd.print(" C");
  lcd.setCursor(12,0);
  lcd.print(" D");
}
void loop()
{

  id = getFingerprintIDez();
  lcd.clear();

  if(id>0)
  {
      Serial.println("\nreached vote");
  lcd.setCursor(0,0);
  lcd.print(" A");
  lcd.setCursor(1,1);
  lcd.print(vote1);
  lcd.setCursor(4,0);
  lcd.print(" B");
  lcd.setCursor(5,1);
  lcd.print(vote2);
  lcd.setCursor(8,0);
  lcd.print(" C");
  lcd.setCursor(9,1);
  lcd.print(vote3);
  lcd.setCursor(12,0);
  lcd.print(" D");
  lcd.setCursor(13,1);
  lcd.print(vote4);
do{
    if(digitalRead(sw1)==0)
    { 
      digitalWrite(12,HIGH);
      vote1++;
      while(digitalRead(sw1)==0); //while loop w no body, stops execution of further statements until button is released
      digitalWrite(12,LOW);
      delay(1000);
    }

   else if(digitalRead(sw2)==0)
    {

      vote2++;
      digitalWrite(12,HIGH);
      while(digitalRead(sw2)==0);
      digitalWrite(12,LOW);
      delay(1000);
    }

    else if(digitalRead(sw3)==0)
    {
      digitalWrite(12,HIGH);
      vote3++;
      while(digitalRead(sw3)==0);
      digitalWrite(12,LOW);
      delay(1000);

    }

    else if(digitalRead(sw4)==0)
    {
      digitalWrite(12,HIGH);
      vote4++;
      while(digitalRead(sw4)==0);
      digitalWrite(12,LOW);
      delay(1000 );
    }
    Serial.println("\nreached vote end");
    int v = vote1+vote2+vote3+vote4;
    Serial.print(v);
    lcd.clear();
  }

  if(digitalRead(sw5)==0)
  {
    digitalWrite(13,HIGH); //different output?
    int vote=vote1+vote2+vote3+vote4;
    if(vote)
    {
      if((vote1 > vote2 && vote1 > vote3 && vote1 > vote4))
      {
        lcd.clear();
        lcd.print("A Wins");
        delay(5000);
        lcd.clear();
      }
      else if((vote2 > vote1 && vote2 > vote3 && vote2 > vote4))
      {
        lcd.clear();
        lcd.print("B Wins");
        delay(5000);
        lcd.clear();
      }
      else if((vote3 > vote1 && vote3 > vote2 && vote3 > vote4))
      {
        lcd.clear();
        lcd.print("C Wins");
        delay(5000);
        lcd.clear();
      }
      else if(vote4 > vote1 && vote4 > vote2 && vote4 > vote3)
      {
        lcd.setCursor(0,0);
        lcd.clear();
        lcd.print("D Wins");
        delay(5000);
        lcd.clear();
      }
      else
      {
        lcd.clear();
        lcd.print(" Tie Up Or ");
        lcd.setCursor(0,1);
        lcd.print(" No Result ");
        delay(5000);
        lcd.clear();
      }
    }
    else
    {
      lcd.clear();
      lcd.print("No Voting….");
      delay(5000);
      lcd.clear();
    }
    vote1=0;vote2=0;vote3=0;vote4=0,vote=0;
    lcd.clear();
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
  }
  
}while(vote_taken==0)

}

/**uint8_t getFingerprintID() 
{
  uint8_t p = finger.getImage();
  switch (p) 
  {
    case FINGERPRINT_OK:
      Serial.println("Image taken");
      break;
    case FINGERPRINT_NOFINGER:
      Serial.println("No finger detected");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_IMAGEFAIL:
      Serial.println("Imaging error");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }

  // OK success!

  p = finger.image2Tz();
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
  
  // OK converted!
  p = finger.fingerFastSearch();
  if (p == FINGERPRINT_OK) 
  {
    Serial.println("Found a print match!");
  } 
  else if (p == FINGERPRINT_PACKETRECIEVEERR) 
  {
    Serial.println("Communication error");
    return p;
  } 
  else if (p == FINGERPRINT_NOTFOUND) 
  {
    Serial.println("Did not find a match");
    return p;
  } 
  else 
  {
    Serial.println("Unknown error");
    return p;
  }   
  
  // found a match!
  Serial.print("Found ID #"); Serial.print(finger.fingerID); 
  Serial.print(" with confidence of "); Serial.println(finger.confidence); 

  return finger.fingerID;
}**/

// returns -1 if failed, otherwise returns ID #
int getFingerprintIDez() 
{
  uint8_t p = finger.getImage();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.image2Tz();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.fingerFastSearch();
  if (p != FINGERPRINT_OK)  return -1;
  
  // found a match!
  Serial.print("Found ID #"); Serial.print(finger.fingerID); 
  Serial.print(" with confidence of "); Serial.println(finger.confidence);
  //lcd.clear();
  return finger.fingerID; 
}