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hi, everybody, I finally found the problem.
I didn't include the #device ADC=10 into the file that I compile.
That's why I always get the wrong reading.
Thanks for everyone that have try to help me ...

the complete code is only involve lcd driver and main function. plus some include header file as below:
#include <16f877a.h>
#device ADC=10
#use delay(clock=4000000)
#fuses XT, NOWDT ...

Hi, I now trying to use pic16f877a and lm35 to read temperature.
Below is the code written:

void main(void)
{
int16 temp_adc;
float temp;

setup_adc ...

Another question, how do Dallas sense temperature?
From the black encapsulate head?

I get the code from somewhere I think is www.vermontficks.org.
I can't recall it.

I try the code that you post.
The result give me 0.5 degree celcius.

I don't understand why.
Could it be my h ...

erm, please let me do the correction.
the
iTemperature = iDataIn / 1000
is actually
iTemperature = iDataIn / 2

The code that have been modified is as follow:

void main ( void )
{
delay_ms ( 200 );

LCD_Init();
LCD_SetPosition ( LINE_1 + 0 );
pri ...

Well, the lcd I use is lmb162hba.
I have solved the lcd display text problem already.

Now the problem I encounter is to get the correct temperature in degrees Celsius.
However, based on the main ...

This is because the lcd I use can only run in 8 bit.
That's why I'm very headache about it.

The schematic is for 4 bit lcd.
But the lcd driver I post is 8 bit.
Yet the program I write cannot wor ...

well, i have included the
#fuses XT, NOPROTECT, NOPUT, NOWDT, NOBROWNOUT, NOLVP, NOCPD

and change the clock to 4 MHz.

However, it still can't run.

Why?

hi, i am trying to do temperature sensor using ds18s20 and display it on 8 bit lcd module.

the pic i am using is 16f877a and below is the source code that i modified from a 4 bit lcd temperature se ...

well, i have found hd44780 8 bit lcd driver.
however, the program i write do not display text.
can anybody tell me what's wrong?
the main() is the program i wrote while the rest of the fuction ...

Well, I use the 8 bit driver and change it into the following code.
However, it can't be compiled. Look at the bold one.
Why?

void main ( void )
{

char LINE1 char LINE2
delay_ms ...

Hi, I'm trying to change the following code to suit my 8 bit lcd.
Can anybody show me?

This is the code using ds1820 to display temperature on 4 bit lcd.

/************************************* ...