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howto display a variable on LCD?

 
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Bloobird0
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howto display a variable on LCD?
PostPosted: Mon Jun 14, 2004 12:00 pm     Reply with quote
hello all, I use an LCD that works fine for displaying text (common LCD in 4 bit mode).

Nevertheless I would like to display a variable on it but I don't know how.

For example:
lcd_putc("\fTemperature: %i°C"); //test écran LCD

where i is the variable to display (integer).

Can someone help me?
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Jun 14, 2004 12:15 pm     Reply with quote
Quote:
I would like to display a variable on it but I don't know how
Use the special CCS feature, which allows the output of printf()
to be re-directed to another function. In the example below,
the output of printf is sent to the lcd_putc() function.
The printf function converts the variable 'temperature' into
ASCII characters, so it can be displayed on your LCD.

Code:
#include <16F877.h>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock = 4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

#include <lcd.c>

//=============================================
void main()
{
signed char temperature;

temperature = -40;

printf(lcd_putc, "\fTemperature: %d", temperature ); 

while(1);
}
Bloobird0
Guest
PostPosted: Mon Jun 14, 2004 12:19 pm     Reply with quote
yesss, it works great!!

Thank you for this tip!
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