Celsius to Fahrenheit

[beny]

hi friends

how do i change  the code use on this project. to display the temperature in  fahrenheit

thank in advance.

 

http://www.engineersgarage.com/microcontroller/8051projects/digital-clock-with-digital-thermometer-AT89C51

[dagakshay]

F = (9/5)*C+32

 

f is temperature in fahrenheit and c is tempeature in degree celcius

 

this is the global formula….

 

very excatly you got struct.

 

[Anonymous]

if u want temperature in fahrenheit only then u can make the following changes in c code of link provided by u…

go to convert function

---

> remove the code in red color

---

> compile and run the code.

void convert()     // Function to convert the values of ADC into numeric value to be sent to LCD

{

int    s;

lcd_cmd(0x81);

delay(2);

lcd_data_string("TEMP:");

test_final=(((9*test_intermediate3)/5)+32);

s=test_final/100;

test_final=test_final%100;

lcd_cmd(0x88);

if(s!=0)

lcd_data(s+48);

else

lcd_cmd(0x06);

s=test_final/10;

test_final=test_final%10;

lcd_data(s+48);

lcd_data(test_final+48);

lcd_data(0);

lcd_data('F');

lcd_data(' ');



    test_final=test_intermediate3;
    lcd_cmd(0xc1);        //Setting  cursor to first position of first line
    delay(2);
    lcd_data_string("TEMP:");
    s=test_final/100;
    test_final=test_final%100;
    lcd_cmd(0xc8);
    if(s!=0)
    lcd_data(s+48);
    else
    lcd_cmd(0x06);
    s=test_final/10;
    test_final=test_final%10;
    lcd_data(s+48);
    lcd_data(test_final+48);
    lcd_data(0);
    lcd_data('c');
    lcd_data(' ');
    delay(2);
}

                  else elaborate u’r quarry……..

 

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