// aangepast 03-06-2010 nauwkeuriger gemaakt
 // OK 45 218 0 213 0 219 39
 // device 45 lcd temp 23+0*256, bpm temp 213+0*256, 
 // druk= 219+39*256
 // 1 drukknop eerste keer drukken aan 
 // tweede keer drukken uit


 #include <RF12.h>
  #include <Ports.h>
  #include <PortsLCD.h>
  #include <RF12.h>
  #include "PortsBMP085.h"

  PortI2C myI2C (1);
  LiquidCrystalI2C lcd (myI2C);
  BlinkPlug buttons (4);
  byte light = 0;
    
  PortI2C two (2);
  BMP085 psensor (two, 3);

  int readTemp() {
  int result;
  // Read temperature sensor against 1.1V reference
  ADMUX = _BV(REFS1) | _BV(REFS0) | _BV(MUX3);
  delay(1); // Wait for Vref to settle
  ADCSRA |= _BV(ADSC); // Convert
  while (bit_is_set(ADCSRA,ADSC));
  result = ADCL;
  result |= ADCH<<8;
  result = (result - 133) ;
  return result;
}

    void setup(){
      lcd.begin(16, 2);
      Serial.begin(9600);
      rf12_initialize('M',RF12_868MHZ,212);
      rf12_easyInit(5);
      psensor.getCalibData();
      
      
    }  

    void loop(){
      char buf[12];
      byte pushed = buttons.pushed();
      if (pushed) 
      {
        if (pushed & 1)
        {                
          if (light == 0)
          {
           light = 1;
          }
          else 
          {
           light =0;
          }
        }
        
      }
        if (light){
       lcd.backlight();                // always on
        }
      else{
        lcd.noBacklight();              // lights off  
      }

      if (Serial.available()) {         // characters arrive
        delay(100);                     // wait
        lcd.clear();                    // clear screen
        while (Serial.available()> 0) { // read characters
          lcd.write(Serial.read());     // display characters
        }
      }
      int16_t traw = psensor.measure(BMP085::TEMP);
      int16_t praw = psensor.measure(BMP085::PRES);
          
    struct {
    int temp1;
    int temp2;
    int pres;
    } payload;
    int16_t temp2;
    int32_t pres;
    psensor.calculate(temp2, pres);

    payload.temp1 = readTemp();
    payload.temp2 = (temp2-8);
    payload.pres = pres/10; // 900 eraf in deamon 900 erbij

    rf12_easyPoll();
    rf12_easySend(&payload, sizeof payload);
    rf12_easySend(0,0);                                   // added for transmission without changes
}