![1. Code o nhi畛t 畛 d湛ng LM35+PIC16F877A+hi畛n th畛 ti畉ng Vi畛t tr棚n LCD
#define<16f877a.h>
#include"16f877A.h"
#device adc=8
#use delay(clock=12000000)
#FUSES NOWDT,HS,NOPUT,NOPROTECT,NODEBUG,NOBROWNOUT,NOLVP,NOCPD,NOWRT
#include<lcd.c>
int8 read;
int8 ketqua[10];
int8 dem[10];
byte const CGRAM[24]={ 0X0E,0X00,0X0E,0X11,0X1F,0X10,0X0E,0X04,
0X01,0X03,0X01,0X07,0X09,0X09,0X07,0X00,
0X0E,0X00,0X0E,0X11,0X11,0X11,0X0E,0x04,};
byte const LED[10]={ 0b00000011,
0b10011111,
0b00100101,
0b00001101,
0b10011001,
0b01001001,
0b01000001,
0b00011111,
0b00000001,
0b00001001,
};
void main()
{
int8 i,j,max,tam;
int8 solan;
set_tris_a(0xFF);
set_tris_d(0x00);
set_tris_b(0x00);
set_tris_c(0x00);
lcd_init();
lcd_send_byte(0,0x2D);// viet cau lenh lcd 4 bit , 2 hang , 5*10dots
lcd_send_byte(0,0x40); // viet cau lenh , ra lenh cho lcd chi toi cgram
//lcd_send_byte(0,0x07);// Dich sang trai khi co hanh dong ghi vao CGRAM
for(i=0;i<24;i++)
lcd_send_byte(1,CGRAM[I]);// viet du lieu vao cgram co dia chi la
0x00 ++
while(TRUE)
{
setup_adc_ports(RA0_RA1_ANALOG_RA3_REF);
setup_adc(ADC_CLOCK_INTERNAL);
set_adc_channel(0);
for(i=0;i<10;i++)
{
if(adc_done())
{
ketqua[i]=read_adc();
delay_us(20);
}
}
setup_adc( ADC_OFF ); //Sau khi lay 10 gia tri xong thi tat ADC
for(i=0;i<10;i++)
{
dem[i]=0;
for(j=0;j<9;j++)](https://image.slidesharecdn.com/codepic-130517040920-phpapp02/85/Code-pic-1-320.jpg)
![{
if(ketqua[i]==ketqua[j])
dem[i]++;
}
}
tam=dem[0];
max=ketqua[0];
for(i=0;i<9;i++)
{
if(tam<=dem[i+1])
{
tam=dem[i+1];
max=ketqua[i+1];
}
}
lcd_gotoxy(1,1);
max=max/0.51;
printf(lcd_putc,"Nhiet do max: %u",max);
delay_us(20);
//ting trung binh
tam=0;
for(i=0;i<10;i++)
{
tam=tam+ketqua[i];
}
max=tam/10/0.51;
LCD_GOTOXY(3,0);
LCD_SEND_BYTE(1,'N');
LCD_SEND_BYTE(1,'h');
LCD_SEND_BYTE(1,'i');
LCD_SEND_BYTE(1,0x00);
LCD_SEND_BYTE(1,'t');
LCD_SEND_BYTE(1,' ');
LCD_SEND_BYTE(1,0x01);
LCD_SEND_BYTE(1,0x02);
LCD_SEND_BYTE(1,' ');
LCD_SEND_BYTE(1,'T');
LCD_SEND_BYTE(1,'B');
LCD_SEND_BYTE(1,':');
printf(lcd_putc,"%u",max);
lcd_send_byte(0,0x1c);
delay_ms(1000);
}
}
2. Code o nhi畛t 畛 d湛ng LM35+PIC16F877A+Hi畛n th畛 LED 7 o畉n
#define<16f877a.h>
#include"16f877A.h"
#device adc=8
#use delay(clock=12000000)
#FUSES NOWDT,HS,NOPUT,NOPROTECT,NODEBUG,NOBROWNOUT,NOLVP,NOCPD,NOWRT
int8 read;
byte const LED[10]={ 0b00001001,//0
0b00111111,//1
0b10010001,//2
0b00010011,//3
0b00100111,//4
0b01000011,//5
0b01000001,//6
0b00011111,//7
0b00000000,//8](https://image.slidesharecdn.com/codepic-130517040920-phpapp02/85/Code-pic-2-320.jpg)
![0b00000010,//9
};
void main()
{
int8 chuc,donvi;
int1 done;
int8 i;
set_tris_a(0xFF);
set_tris_d(0x00);
set_tris_b(0x00);
set_tris_c(0x00);
setup_adc_ports(RA0_RA1_ANALOG_RA3_REF);
setup_adc(ADC_CLOCK_INTERNAL);
set_adc_channel(0);
while(TRUE)
{
setup_adc(ADC_START_ONLY);
done=adc_done();
while(!done)
{
done=adc_done();
}
delay_ms(100);
READ=READ_ADC();
for(i=0;i=200;i++)
{
chuc=read/10;
donvi=read%10;
output_low(pin_c0);
output_b(led[chuc]);
delay_ms(10);
output_high(pin_c0);
output_low(pin_c1);
output_b(led[donvi]);
delay_ms(10);
output_high(pin_c1);
}
}
}
3. M畉ch o nhi畛t 畛 i畛u khi畛n 畛ng c董, hi畛n th畛 LCD
Code:
#include <16F877A.h>
#include <def_877a.h>
#device *=16 ADC=10
#include <lcd.h>
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH)
(>10mhz for PCD)
#FUSES NOPUT //No Power Up Timer
#FUSES NOPROTECT //Code not protected from reading
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or
B5(PIC18) used for I/O
#FUSES NOCPD //No EE protection
#FUSES NOWRT //Program memory not write protected
#FUSES RESERVED //Used to set the reserved FUSE bits](https://image.slidesharecdn.com/codepic-130517040920-phpapp02/85/Code-pic-3-320.jpg)
Code pic
- 1. 1. Code o nhi畛t 畛 d湛ng LM35+PIC16F877A+hi畛n th畛 ti畉ng Vi畛t tr棚n LCD #define<16f877a.h> #include"16f877A.h" #device adc=8 #use delay(clock=12000000) #FUSES NOWDT,HS,NOPUT,NOPROTECT,NODEBUG,NOBROWNOUT,NOLVP,NOCPD,NOWRT #include<lcd.c> int8 read; int8 ketqua[10]; int8 dem[10]; byte const CGRAM[24]={ 0X0E,0X00,0X0E,0X11,0X1F,0X10,0X0E,0X04, 0X01,0X03,0X01,0X07,0X09,0X09,0X07,0X00, 0X0E,0X00,0X0E,0X11,0X11,0X11,0X0E,0x04,}; byte const LED[10]={ 0b00000011, 0b10011111, 0b00100101, 0b00001101, 0b10011001, 0b01001001, 0b01000001, 0b00011111, 0b00000001, 0b00001001, }; void main() { int8 i,j,max,tam; int8 solan; set_tris_a(0xFF); set_tris_d(0x00); set_tris_b(0x00); set_tris_c(0x00); lcd_init(); lcd_send_byte(0,0x2D);// viet cau lenh lcd 4 bit , 2 hang , 5*10dots lcd_send_byte(0,0x40); // viet cau lenh , ra lenh cho lcd chi toi cgram //lcd_send_byte(0,0x07);// Dich sang trai khi co hanh dong ghi vao CGRAM for(i=0;i<24;i++) lcd_send_byte(1,CGRAM[I]);// viet du lieu vao cgram co dia chi la 0x00 ++ while(TRUE) { setup_adc_ports(RA0_RA1_ANALOG_RA3_REF); setup_adc(ADC_CLOCK_INTERNAL); set_adc_channel(0); for(i=0;i<10;i++) { if(adc_done()) { ketqua[i]=read_adc(); delay_us(20); } } setup_adc( ADC_OFF ); //Sau khi lay 10 gia tri xong thi tat ADC for(i=0;i<10;i++) { dem[i]=0; for(j=0;j<9;j++)
- 2. { if(ketqua[i]==ketqua[j]) dem[i]++; } } tam=dem[0]; max=ketqua[0]; for(i=0;i<9;i++) { if(tam<=dem[i+1]) { tam=dem[i+1]; max=ketqua[i+1]; } } lcd_gotoxy(1,1); max=max/0.51; printf(lcd_putc,"Nhiet do max: %u",max); delay_us(20); //ting trung binh tam=0; for(i=0;i<10;i++) { tam=tam+ketqua[i]; } max=tam/10/0.51; LCD_GOTOXY(3,0); LCD_SEND_BYTE(1,'N'); LCD_SEND_BYTE(1,'h'); LCD_SEND_BYTE(1,'i'); LCD_SEND_BYTE(1,0x00); LCD_SEND_BYTE(1,'t'); LCD_SEND_BYTE(1,' '); LCD_SEND_BYTE(1,0x01); LCD_SEND_BYTE(1,0x02); LCD_SEND_BYTE(1,' '); LCD_SEND_BYTE(1,'T'); LCD_SEND_BYTE(1,'B'); LCD_SEND_BYTE(1,':'); printf(lcd_putc,"%u",max); lcd_send_byte(0,0x1c); delay_ms(1000); } } 2. Code o nhi畛t 畛 d湛ng LM35+PIC16F877A+Hi畛n th畛 LED 7 o畉n #define<16f877a.h> #include"16f877A.h" #device adc=8 #use delay(clock=12000000) #FUSES NOWDT,HS,NOPUT,NOPROTECT,NODEBUG,NOBROWNOUT,NOLVP,NOCPD,NOWRT int8 read; byte const LED[10]={ 0b00001001,//0 0b00111111,//1 0b10010001,//2 0b00010011,//3 0b00100111,//4 0b01000011,//5 0b01000001,//6 0b00011111,//7 0b00000000,//8
- 3. 0b00000010,//9 }; void main() { int8 chuc,donvi; int1 done; int8 i; set_tris_a(0xFF); set_tris_d(0x00); set_tris_b(0x00); set_tris_c(0x00); setup_adc_ports(RA0_RA1_ANALOG_RA3_REF); setup_adc(ADC_CLOCK_INTERNAL); set_adc_channel(0); while(TRUE) { setup_adc(ADC_START_ONLY); done=adc_done(); while(!done) { done=adc_done(); } delay_ms(100); READ=READ_ADC(); for(i=0;i=200;i++) { chuc=read/10; donvi=read%10; output_low(pin_c0); output_b(led[chuc]); delay_ms(10); output_high(pin_c0); output_low(pin_c1); output_b(led[donvi]); delay_ms(10); output_high(pin_c1); } } } 3. M畉ch o nhi畛t 畛 i畛u khi畛n 畛ng c董, hi畛n th畛 LCD Code: #include <16F877A.h> #include <def_877a.h> #device *=16 ADC=10 #include <lcd.h> #FUSES NOWDT //No Watch Dog Timer #FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD) #FUSES NOPUT //No Power Up Timer #FUSES NOPROTECT //Code not protected from reading #FUSES NODEBUG //No Debug mode for ICD #FUSES NOBROWNOUT //No brownout reset #FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O #FUSES NOCPD //No EE protection #FUSES NOWRT //Program memory not write protected #FUSES RESERVED //Used to set the reserved FUSE bits
- 4. #use delay(clock=20000000) int8 mode,tmin,tmax; // Khai bao cac bien dung trong ct int16 ct; int1 bat,anphim,docnhietdo; int8 cnt=0; void readkb() // Ham phat hien phim bam { anphim=0; if(INPUT(PIN_C0)==0) // Neu phim 1 duoc an (phim chon mode) { delay_ms(150); // Ham delay chong rung phim while(INPUT(PIN_C0)==0); // Cho den khi nut duoc tha ra mode++; // Tang mode len 1 de chuyen sang mode ke tiep if(mode==3) mode=0; // Lap lai mode 0 khi da chuyen qua het cac mode anphim=1; } else { if(INPUT(PIN_C1)==0) // Neu phim 2 duoc an (phim giam) { delay_ms(150); // Chong rung phim (cho phim duoc an trong 1 luc) if(INPUT(PIN_C1)==0) { if(mode==1) { if(tmin>0) tmin--; anphim=1; } // Giam nguong tuy theo mode, "tmin" >0 th狸 gi畉m 1 if(mode==2) { if(tmax>tmin+1) tmax--; anphim=1; } // de "tmax" kh担ng nh畛 h董n "tmin" +1 } } else { if(INPUT(PIN_C2)==0) // Neu phim 3 duoc an (phim tang) { delay_ms(150); // Cho phim duoc an trong 1 luc if(INPUT(PIN_C2)==0) { if(mode==1) { if(tmin<tmax-1) tmin++; anphim=1; // Tang nguong tuy theo mode. Tmin khong the >tmax-1 } if(mode==2) { if(tmax<90) tmax++; anphim=1; // tmax khong lon hon 90do. } } } else if(INPUT(PIN_C3)==0) // Neu phim 4 duoc an (phim bat/tat) { delay_ms(150); while(INPUT(PIN_C3)==0); // Cho den khi nut duoc tha ra
- 5. if (ct>=tmin&&ct<=tmax) // Neu nhiet do nam trong khoang giua 2 nguong { // thi nut 4 co chuc nang bat/tat quat bat=~bat; if(bat==1) OUTPUT_BIT(PIN_D0,1); if(bat==0) OUTPUT_BIT(PIN_D0,0); anphim=1; } } } } } void check() // Ham kiem tra nguong (tat quat neu nhiet do duoi tmin { // va bat quat neu nhiet do tren tmax) if (ct<tmin) { OUTPUT_BIT(PIN_D0,0); bat=0; } if (ct>tmax) { OUTPUT_BIT(PIN_D0,1); bat=1; } } void hiennhietdo() // Ham hien thi nhiet do do duoc tu LM35 { int8 t,chuc,donvi; setcursor(0,0); wrtchar("- DO NHIET DO -"); // Hien thi dong tren t = ct; chuc = t/10 + 48; // Tach so hang chuc va hang don vi donvi = t%10 + 48; setcursor(0,1); wrtchar("NHIET DO: "); // Hien thi so do nhiet do len LCD wrtchar(chuc); wrtchar(donvi); wrtchar("*C"); delay_ms(50); } void settmin() // Ham cai dat nguong nhiet do min { int8 t,chuc,donvi; setcursor(0,0); wrtchar("- HEN TAT QUAT -"); t = tmin; // Tach hang chuc va don vi cua tmin va hien thi ra LCD chuc = t/10 + 48; donvi = t%10 + 48; setcursor(0,1); wrtchar("NEU DUOI: "); wrtchar(chuc); wrtchar(donvi); wrtchar("*C"); delay_ms(50); } void settmax() // Ham cai dat nguong nhiet do max (tuong tu ham setmin) { int8 t,chuc,donvi; setcursor(0,0); wrtchar("- HEN BAT QUAT -"); t = tmax;
- 6. chuc = t/10 + 48; donvi = t%10 + 48; setcursor(0,1); wrtchar("NEU TREN: "); wrtchar(chuc); wrtchar(donvi); wrtchar("*C"); delay_ms(50); } void selectmode() // Ham lua chon mode hien thi { switch (mode) { case 0: hiennhietdo(); break; case 1: settmin(); break; case 2: settmax(); break; } } #INT_TIMER1 // Khai bao su dung ngat timer1 void ct_phuc_vu_ngat() { CLEAR_INTERRUPT(INT_TIMER1); // Xoa co ngat timer1 DISABLE_INTERRUPTS(GLOBAL); // Khong cho phep ngat khac cnt++; // Sau moi ngat ta tang bien dem if(cnt==10) // khi cnt=10 thi da dem duoc 10 lan tuong ung voi 1s { docnhietdo=1; ct = READ_ADC(); ct = ct*0.49; cnt=0; } else docnhietdo=0; SET_TIMER1(3035); ENABLE_INTERRUPTS(GLOBAL); } void main() // Ham ct chinh { Setup_ADC(ADC_CLOCK_INTERNAL); // Cai dat bo chuyen doi ADC setup_adc_ports(AN0); // Ngo vao Analog la chan AN0 SET_ADC_CHANNEL(0); // Chon kenh chuyen doi ADC la kenh 0 delay_us(20); mode = 0; // Khoi tao ban dau voi tmin=20*C va tmax=27*C tmin = 20; // va hien thi mode do nhiet do dau tien tmax = 27; lcd_init(); // Khoi tao LCD wrtcmd(0x01); wrtcmd(0x28); wrtcmd(0x0c); SETUP_TIMER_1(T1_INTERNAL|T1_DIV_BY_8); // Cai dat timer1 voi bo chia tan 1:8 SET_TIMER1(3035); // Gia tri khoi tao cho timer1 ( dem den 65535 // voi clock 20Mhz chia 8 => mot ngat tuong ung voi 0.1s ) ENABLE_INTERRUPTS(INT_TIMER1); // Cho phep ngat timer1
- 7. ENABLE_INTERRUPTS(GLOBAL); // Cho phep ngat toan cuc ct = READ_ADC(); // Doc gia tri nhiet do dau tien ct = ct*0.49; while(1) // Vong lap vo han { selectmode(); do { if(docnhietdo==1) // Neu nhiet do duoc doc thi hien thi ra LCD neu dang { // o mode hien thi va tien hanh kiem tra nguong if(mode==0) { hiennhietdo(); } check(); // Kiem tra nguong } readkb(); } while(anphim==0); // Lien tuc lap lai viec kiem tra xem nhiet do } // co duoc doc hay ko va kiem tra phim bam }