Arduino Relogio Despertador

arduino_relogio_despertador.pde

#include <Wire.h>

int state;

byte SW0 = 3;
byte SW1 = 2;
byte SW2 = 1;

byte minutes;
byte hours;

int parar = 12;

int despertar[2];
int despertarFlag;

byte despertador [7][4];
int funcao;
int campo;

void setup () {
  Wire.begin();

  byte minutes = 0;
  byte hours   = 5;

  Wire.beginTransmission(0x68);
  Wire.send(0);
  Wire.send(0x00);
  Wire.send(minutes);
  Wire.send(0x80 | hours);
  Wire.send(0x06);
  Wire.send(0x01);
  Wire.send(0x05);
  Wire.send(0x09);
  Wire.send(0x10);
  Wire.endTransmission();

  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10,OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  
  digitalWrite(13, HIGH);
}

void loop () {
  Wire.beginTransmission(0x68);
  Wire.send(0);
  Wire.endTransmission();

  Wire.requestFrom(0x68, 3);
  byte secs  = Wire.receive();
  byte mins  = Wire.receive();
  byte hrs   = Wire.receive();
  
  digitalWrite(0, HIGH);
  digitalWrite(1, LOW);
  mostra(mins, 1);
  
  digitalWrite(0, LOW);
  digitalWrite(1, HIGH);
  mostra(hrs, 2);

  if ((analogRead(SW0) != 0)) set_time();
  delay(1000);
  toggle(13);
  
  if (mins == minutes && hrs == hours){
    while (parar =! 1){ 
      digitalWrite (12, HIGH);
      delay (300);
      digitalWrite (12, LOW);
      delay (300);
    }
  }
}

void toggle( int pinNum ){
  int pinState = digitalRead(pinNum);
  pinState = !pinState;
  digitalWrite(pinNum, pinState);
}

void mostra(int num, int pos){
  int numEsq, numDir;
  
  int bcd[4] = {0, 0, 0, 0};
  if (pos == 1){
    bcd[0] = 2;
    bcd[1] = 3;
    bcd[2] = 4;
    bcd[3] = 5;
  } else {
    bcd[0] = 6;
    bcd[1] = 7;
    bcd[2] = 8;
    bcd[3] = 9;
  }
  
  int msn = num/10;
  int lsn = num-msn*10;
  
  int mask = 8;
  
  for(int i = 2; i < 11; i++)
    digitalWrite(i, LOW);
    
  for(int i = 0; i<4; i++){
    if(msn & mask != 0)
      bcd[i] = 1;
    mask >>= 1;
  }
  
}

void acendeNo (int no, int pos) {
  int bcd[4] = {0, 0, 0, 0};
  if (pos == 1){
    bcd[0] = 2;
    bcd[1] = 3;
    bcd[2] = 4;
    bcd[3] = 5;
  } else {
    bcd[0] = 6;
    bcd[1] = 7;
    bcd[2] = 8;
    bcd[3] = 9;
  }

  switch( no ){
    case 0:
      digitalWrite(bcd[0], LOW);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], LOW);
    break;
    case 1:
      digitalWrite(bcd[0], HIGH);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], LOW);
    break;
    case 2:
      digitalWrite(bcd[0], LOW);
      digitalWrite(bcd[1], HIGH);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], LOW);
    break;
    case 3:
      digitalWrite(bcd[0], HIGH);
      digitalWrite(bcd[1], HIGH);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], LOW);
    break;
    case 4:
      digitalWrite(bcd[0], LOW);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], HIGH);
      digitalWrite(bcd[3], LOW);
    break;
    case 5:
      digitalWrite(bcd[0], HIGH);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], HIGH);
      digitalWrite(bcd[3], LOW);
    break;
    case 6:
      digitalWrite(bcd[0], LOW);
      digitalWrite(bcd[1], HIGH);
      digitalWrite(bcd[2], HIGH);
      digitalWrite(bcd[3], LOW);
    break;
    case 7:
      digitalWrite(bcd[0], HIGH);
      digitalWrite(bcd[1], HIGH);
      digitalWrite(bcd[2], HIGH);
      digitalWrite(bcd[3], LOW);
    break;
    case 8:
      digitalWrite(bcd[0], LOW);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], HIGH);
    break;
    case 9:
      digitalWrite(bcd[0], HIGH);
      digitalWrite(bcd[1], LOW);
      digitalWrite(bcd[2], LOW);
      digitalWrite(bcd[3], HIGH);
    break;
  }
}

void set_time()   {
  byte minutes = 0;
  byte hours = 0;

  while (analogRead(SW0) != 0)  // set time switch must be released to exit
  {
    while (analogRead(SW1) != 0) // set minutes
    { 
      minutes++;          
      if ((minutes & 0x0f) > 9) minutes = minutes + 6;
      if (minutes > 0x59) minutes = 0;
      Serial.print("Minutes = ");
      if (minutes >= 9) Serial.print("0");
      Serial.println(minutes, HEX);

      delay(750);
    }

    while (analogRead(SW2)!=0) // set hours
    { 
      hours++;          
      if ((hours & 0x0f) > 9) hours =  hours + 6;
      if (hours > 0x23) hours = 0;
      Serial.print("Hours = ");
      if (hours <= 9) Serial.print("0");
      Serial.println(hours, HEX);
      delay(750);
    }

    Wire.beginTransmission(0x68); // activate DS1307
    Wire.send(0); // where to begin
    Wire.send(0x00);          //seconds
    Wire.send(minutes);          //minutes
    Wire.send(0x80 | hours);    //hours (24hr time)
    Wire.send(0x06);  // Day 01-07
    Wire.send(0x01);  // Date 0-31
    Wire.send(0x05);  // month 0-12
    Wire.send(0x09);  // Year 00-99
    Wire.send(0x10); // Control 0x10 produces a 1 HZ square wave on pin 7. 
    Wire.endTransmission();
  }    
  
}