Codul pentru senzorul de temperatura:

sbit DQ at RA1_bit;

char uart_rd;

//  Set TEMP_RESOLUTION to the corresponding resolution of used DS18x20 sensor:

//  18S20: 9  (default setting; can be 9,10,11,or 12)

//  18B20: 12

const unsigned short TEMP_RESOLUTION = 9;

char *text = "000.0000";

unsigned temp;

void Display_Temperature(unsigned int temp2write) {

const unsigned short RES_SHIFT = TEMP_RESOLUTION - 8;

char temp_whole;

unsigned int temp_fraction;

// Check if temperature is negative

if (temp2write & 0x8000) {

text[0] = '-';

temp2write = ~temp2write + 1;

}

// Extract temp_whole

temp_whole = temp2write >> RES_SHIFT ;

// Convert temp_whole to characters

if (temp_whole/100)

text[0] = temp_whole/100  + 48;

else

text[0] = '0';

text[1] = (temp_whole/10)%10 + 48;             // Extract tens digit

text[2] =  temp_whole%10     + 48;             // Extract ones digit

// Extract temp_fraction and convert it to unsigned int

temp_fraction  = temp2write << (4-RES_SHIFT);

temp_fraction &= 0x000F;

temp_fraction *= 625;

// Convert temp_fraction to characters

text[4] =  temp_fraction/1000    + 48;         // Extract thousands digit

text[5] = (temp_fraction/100)%10 + 48;         // Extract hundreds digit

text[6] = (temp_fraction/10)%10  + 48;         // Extract tens digit

text[7] =  temp_fraction%10      + 48;         // Extract ones digit

}

void main() {

//  ANSEL  = 0;                                    // Configure AN pins as digital I/O

//  ANSELH = 0;

//  C1ON_bit = 0;                                  // Disable comparators

//  C2ON_bit = 0;

ADCON1 |= 0x0F;                                // Configure AN pins as digital

CMCON  |= 7;                                   // Disable comparators

while (1) {                     // Endless loop

UART1_Init(9600);               // Initialize UART module at 9600 bps

Delay_ms(100);                  // Wait for UART module to stabilize

UART1_Write_Text("Temperatura: ");

Ow_Reset(&PORTA, 0);                         // Onewire reset signal

Ow_Write(&PORTA, 0, 0xCC);                   // Issue command SKIP_ROM

Ow_Write(&PORTA, 0, 0x44);                   // Issue command CONVERT_T

Delay_us(120);

Ow_Reset(&PORTA, 0);

Ow_Write(&PORTA, 0, 0xCC);                   // Issue command SKIP_ROM

Ow_Write(&PORTA, 0, 0xBE);                   // Issue command READ_SCRATCHPAD

temp =  Ow_Read(&PORTA, 0);

temp = (Ow_Read(&PORTA, 0) << 8) + temp;

Delay_ms(500);

UART1_Write_Text("Temperatura: ");

UART1_Write(temp);       // and send data via UART1

UART1_Write(223);

UART1_Write('C');

}

}

Results [edit]

O imagine de ansamblu a cum functioneaza proiectul, screenshoturi, filmulete cu proiectul functionand. Alte detalii care le credeti importante.

Download [edit]

Se va adauga si modalitatea de compilare, ce IDE(Proteus, AVR Studio, Open Watcom) ati folosit in compilare