16f877 with LM335 problem

[Ioannis]

That's because you have left justified the ADC result in ADRESL and ADRESH.

Set the adcon0 to %10000001.

Also you have this calculation:

 Temperature = (LM35_Vout - LM35_VGND) * 100

What about LM35_Vout being less than LM35_VGND?

I expected you would do this and noted in earlier post (#33)

The simplest way is to have an if-then check first like this:

 if LM35_Vout >LM35_VGND then
       Temperature = (LM35_Vout - LM35_VGND) * 100
 else
 if LM35_Vout <= LM35_VGND then
       Temperature = (LM35_VGND - LM35_Vout) * 100
 endif

Ioannis