کد ساخت دماسنج با lm35 و avr atmega16

دماسنج با سنسور lm35 و میکور اتمگا 16

  
#include <mega16.h> #include <delay.h> #include <stdio.h> #include <stdlib.h> #include <delay.h> // Alphanumeric LCD Module functions #asm .equ __lcd_port=0x12 ;PORTD #endasm #include <lcd.h> typedef unsigned char byte; flash byte char0[8]={ 0b10000111, 0b10000101, 0b10000111, 0b10000000, 0b10000000, 0b10000000, 0b10000000, 0b10000000 }; void Configuration_LCD(void); void define_char(byte flash *pc,byte); void Configuration_ADC(void); void Display_LCD_Start(void); float Read_adc(unsigned char); float Convert(float); void Display_LCD_1(float); float Input_mV=0; float Temp=0; void main(void){ Configuration_ADC(); Configuration_LCD(); define_char(char0,0); Display_LCD_Start(); while (1){ Input_mV=Read_adc(1); Temp=Convert(Input_mV); Display_LCD_1(Temp); delay_ms(300); }; } //******************************************************** void Configuration_LCD(void){ lcd_init(16); lcd_clear(); } //******************************************************** void define_char(byte flash *pc,byte char_code){ byte i,a; a=(char_code<<3) | 0x40; for (i=0; i<8; i++) lcd_write_byte(a++,*pc++); } //******************************************************** void Configuration_ADC(void){ // Analog Comparator initialization // Analog Comparator: Off // Analog Comparator Input Capture by Timer/Counter 1: Off ACSR=0x80; SFIOR=0x00; // ADC initialization // ADC Clock frequency: 125.000 kHz // ADC Voltage Reference: AVCC pin ADMUX=0x40 & 0xff; ADCSRA=0x83; } //******************************************************** void Display_LCD_Start(void){ lcd_clear(); lcd_gotoxy(0,0); lcd_putsf("Temp"); delay_ms(300); lcd_clear(); delay_ms(200); } //******************************************************** float Read_adc(unsigned char adc_input){ float x=0; ADMUX=adc_input | (0x40 & 0xff); // Delay needed for the stabilization of the ADC input voltage delay_us(10); // Start the AD conversion ADCSRA|=0x40; // Wait for the AD conversion to complete while ((ADCSRA & 0x10)==0); ADCSRA|=0x10; x=ADCW; x= x*4.8828125; return x; } //******************************************************** float Convert(float x){ x=x/10; return x; } //******************************************************** void Display_LCD_1(float x){ char buffer[16]; lcd_gotoxy(0,0); lcd_putsf("Temp: "); ftoa(x,1,buffer); lcd_puts(buffer); lcd_putsf(" "); lcd_putchar(0); lcd_putsf("C"); }