پروژه راه اندازی سنسور های سری MQ با استفاده از مجموعه آموزشی AVR WIZARD توسط برد پلاریس به زبان C

				
					#include <mega16a.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <delay.h>
#include <alcd.h>
#include "mq.h"
// Declare your global variables here
float  mq2_value =0.00;
char mq2[16];
void main(void)
{
// Declare your local variables here
 
// Input/Output Ports initialization
// Port A initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRA=(0<<DDA7) | (0<<DDA6) | (0<<DDA5) | (0<<DDA4) | (0<<DDA3) | (0<<DDA2) | (0<<DDA1) | (0<<DDA0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTA=(0<<PORTA7) | (0<<PORTA6) | (0<<PORTA5) | (0<<PORTA4) | (0<<PORTA3) | (0<<PORTA2) | (0<<PORTA1) | (0<<PORTA0);
 
// Port B initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
(0<<DDB0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);
 
// Port C initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRC=(0<<DDC7) | (0<<DDC6) | (1<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTC=(0<<PORTC7) | (0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);
 
// Port D initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 
DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (1<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 
PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
// ADC initialization
// ADC Clock frequency: 125.000 kHz
// ADC Voltage Reference: AVCC pin
// ADC Auto Trigger Source: ADC Stopped
ADMUX=ADC_VREF_TYPE;
ADCSRA=(1<<ADEN) | (0<<ADSC) | (0<<ADATE) | (0<<ADIF) | (0<<ADIE) | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0);
SFIOR=(0<<ADTS2) | (0<<ADTS1) | (0<<ADTS0);
 
lcd_init(16);
lcd_putsf( "   HI Wellcom   " ) ;
lcd_gotoxy( 0 , 1 );
lcd_putsf( "TO REDRONIC.COM" ) ;
delay_ms(2000);
lcd_clear();
lcd_putsf( "   Waitting..." ) ;
lcd_gotoxy( 0 , 1 );
lcd_putsf( " MQ Calibration " ) ;
Ro = SensorCalibration();
lcd_clear();
// Global enable interrupts
#asm("sei")
 
 
while (1)
      {   
         lcd_clear();   
         lcd_putsf("www.redronic.com");
         mq2_value = ReadSensor();               //get sensor value
         mq2_value =mq2_value/Ro;                //turn to scale of  callibrated Ro
         mq2_value = log10(mq2_value);          // according to datasheet chart
         mq2_value = ((mq2_value-SmokeCurve[1])/SmokeCurve[2] + SmokeCurve[0]);
         mq2_value = pow(10,mq2_value);
         if(mq2_value < 10)
           {
            lcd_gotoxy(0,0); 
            lcd_putsf("     "); 
           }
         ftoa(mq2_value,0,mq2);
         lcd_gotoxy(0,1);
         lcd_putsf("MQ:");
); 
         lcd_puts(mq2); 
         lcd_gotoxy(8,1);
         lcd_putsf("ppm"); 
         delay_ms(2000); 
   }
}