[SOLVED] ADC conversion problem

[Sambarta]

Sir, I am seeing that in this program he has done

 void convert()     
{
   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)
    [COLOR=#008000]lcd_data(s+48);[/COLOR]
    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)[B][COLOR=#0000FF]
    lcd_data(s+48);[/COLOR][/B]
    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);

I cannot understand s+48,test_final+48. Can you explain.

 

[KlausST]

Hi,

Your problem has nothing to do with ADC conversion.

As far as i can see the +48 forms a 0..9 binary value to '0' ...'9' ASCII values.

Klaus

 

[amit.kumar11]

Hi,

Plz check below link for ASCII chart. You will get good idea.

https://www.asciichart.com/



Amit