Suhu Code.docx

#include <mega32.h> #include <delay.h> unsigned char angka[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

int satuan,puluhan,koma,data_adc,data_temp,x; int Vref=1.2; float suhu,tegangan_input,tampung;

#define ADC_VREF_TYPE 0x00 unsigned int read_adc(unsigned char adc_input) { ADMUX=adc_input|(ADC_VREF_TYPE&0xff);

delay_us(10); ADCSRA|=0x40; while((ADCSRA&0x10)==0); ADCSRA|=10; return ADCW; }

void tampilkan() { data_temp=(int)suhu; koma=data_temp%10; satuan=(data_temp/10)%10; puluhan=(data_temp/100)%10;

PORTB.0=0;

PORTB.1=1; PORTB.2=1; PORTC=angka[puluhan]; delay_ms(5);

PORTB.0=1; PORTB.1=0; PORTB.2=1; PORTC=angka[satuan]; delay_ms(5);

PORTB.0=1; PORTB.1=1; PORTB.2=0; PORTC=angka[koma]; delay_ms(5); }

void baca_data() { tampung=0; for(x=0;x<100;x++) { data_adc=read_adc(0); tampung = tampung+data_adc; tampilkan(); } tampung = tampung/100; tegangan_input = (float)tampung * Vref / 1023;

suhu=tegangan_input*1000; }

void main(void) { PORTA=0x00; DDRA=0x00;

PORTC=0x00; DDRC=0xFF;

PORTB=0xFF; DDRB=0xFF;

ADMUX=ADC_VREF_TYPE&0xFF; ADCSRA=0x84; SFIOR&=0xFF;

while(1) {

baca_data(); } }