display xx.xx

[thinkpositivex23]

hello...

i write a codding to make a volt meter...
i use LM35
and want to disply at LCD

Code: Select all

char *text = "testing...";
float blinkc ;
char txt[18];
float temp;
void main() 
{
  ADCON1 = 0x80;         //
  TRISA = 0b111111;      //
  Lcd_Init(&PORTC);         // Initialize LCD connected to PORTB
  
  Lcd_Cmd(Lcd_CLEAR);       // Clear display
  Lcd_Cmd(Lcd_CURSOR_OFF);  // Turn cursor off
  Lcd_Out(1, 1, text);      // Print text to LCD, 2nd row, 1st column
 while(1)
 { 
  temp = ADC_Read(0);
  blinkc = (5*temp)/10.24;
  FloatToStr(blinkc, txt);  

  Lcd_Out(2,1,txt);
  Lcd_Out(2,10,"degree");   
 } 
}//~!

while ADC read temp such as 30.something degree
lcd display by follow my calc and floatto str is
30.00000

how to show at LCD just 30.00 ?
please help me...
thanks

[KaranSoin]

Use sprintf(). But the function is not available to micro-controllers with low program memory (life a lot of older 16F series).

Regards

[thinkpositivex23]

owh...like that....thanks..

fyi i use PIC16F876A...

i already look about sprintf()

but i not much understand about how to write this code...
can you show to me....
thanks...

[Acetronics]

Hi,

Think positive and help yourself :

Open the Onewire example and see how the "temperature number" is displayed ...

That simple.

Alain

[KaranSoin]

cheers to think positive and helpurself , however i will give u a head start

Code: Select all

sprintf(txt,"%0.02f",blinkc);

Now u may have to help urself in understanding what that 0.02f jazz is all about.


cheers

[thinkpositivex23]

thanks for your advise...

i already done my code...and its work fine....

thanks & regards