hapa01

/*
Carlos Soto
check 2/11/10
Manejo LCD
Expansor 
*/


//Este programa maneja la LCD, y el expansor PCF8574 para el 
//manejo de ocho entradas por medio del protocolo i2c, además 
//de realizar la validación para el manejo de las cuatro entradas 
//que se tienen previstas para el HAPA.

#include <Wire.h>

int dd=50;
#define expander B0100000  // Direccion del expansor alpha-num
                           // 0  1   0   0   A2  A1  A0
                           // 0  1   0   0   0   0    0
// Note that the R/W bit is not part of this address.

// include the library code:
#include <LiquidCrystal.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(13, 12, 11, 10, 9, 8);

//Manejo de Entradas
const int inPin01 = 4; 
const int inPin02 = 5; 
const int inPin03 = 6; 
const int inPin04 = 7; 
  //Manejo de Entradas en setup
  int inState01 = 0;
  int inState02 = 0;
  int inState03 = 0;
  int inState04 = 0;

 
                            

void setup() {
  Wire.begin();
  Serial.begin(9600);

  // set up the LCD's number of rows and columns: 
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("HAPA 001");
}

void loop() {

  expanderWrite (B10000000);
  delay(dd);
  expanderWrite (B01000000);
  delay(dd);
  expanderWrite (B00100000);
  delay(dd);
  expanderWrite (B00010000);
  delay(dd);
  expanderWrite (B00001000);
  delay(dd);
  expanderWrite (B00000100);
  delay(dd);
  expanderWrite (B00000010);
  delay(dd);
  expanderWrite (B00000001);
  delay(dd);
  expanderWrite (B11111111);
  delay(dd);


  inState01 = digitalRead(inPin01);
  inState02 = digitalRead(inPin02);
  inState03 = digitalRead(inPin03);
  inState04 = digitalRead(inPin04);


  if (inState04 == LOW) {     
    // turn LED on:    
    lcd.setCursor(5, 1);
    // print the number of seconds since reset:
    lcd.print("cuatro");
  } 
  else
      if (inState03 == LOW) {     
        // turn LED on:    
        lcd.setCursor(5, 1);
        // print the number of seconds since reset:
        lcd.print("tres");
      } 
      else
           if (inState02 == LOW) {     
           // turn LED on:    
           lcd.setCursor(5, 1);
           // print the number of seconds since reset:
           lcd.print("dos");
      } 
           else 
               if (inState01 == LOW) {     
               // turn LED on:    
               lcd.setCursor(5, 1);
               // print the number of seconds since reset:
               lcd.print("uno");
               }
               else
               {
               // turn LED on:    
               lcd.setCursor(5, 1);
               // print the number of seconds since reset:
               lcd.print("       ");
               }
   
  

  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis()/1000);



}


void expanderWrite(byte _data ) {
  Wire.beginTransmission(expander);
  Wire.send(_data);
  Wire.endTransmission();
}