đo nhiệt độ dùng pic 16f877a và lm35 giao tiếp PC

[dungdeptrai]

#include <16f877a.h>
#FUSES NOWDT, HS, NOPUT, NOPROTECT, NODEBUG, NOBROWNOUT, NOLVP, NOCPD, NOWRT
#device ADC=10
#use delay(clock=200000000)
#byte portb=0x06
#byte porta=0x05
#byte portd=0x08
#bit d0=portd.0
#bit d1=portd.1
#use fast_io(a)
#use fast_io(b)
#use fast_io(d)
int8 const LED[]={0xc0,//0
0xc0,//0
0xf9,//1
0xa4,//2
0xb0,//3
0x99,//4
0x92,//5
0x83,//6
0xf8,//7
0x80,//8
0x98,//9
}
void main()
{
int i;
int8 x,read,hangchuc,hangdonvi;
setup_adc(ADC_CLOCK_INTERNAL);
setup_adc_ports(AN0_AN1_VREF_VREF);
set_adc_channel(0);
delay_us(10);
while(1)
{

x= read_adc();
x= (int16) ((float)read_adc() * 500/1024);
read=x;
hangchuc=read/10;
hangdonvi=read%10;
for(i=0;i<=99;i++)
{
output_low(d0);
output_b(LED[hangchuc]);
delay_ms(10);
output_low(d1);
output_b(LED[hangdonvi]);
delay_ms(10);
}

}

}