c - Enable port RA0 as input and retrieve value LDR from led -


I am using Picchmium18F4550 with microchip v8.63 with the C18 compiler.

To enable the port to be set as input, I will connect an LDR to Port RA 0. Which is the following (I think) 

  TRISAbits.TRISA0 = 1; & Lt; = Set RA 0 as input   
 Now I want the value of the LDR (if any lead is turned on), can I say:  
 < Code> int color ledge = portabits. Ra 0;   
 And now there is the value / voltage of my leadership in the variable of type int.  
 Correct me if I am wrong.  
 
 It seems that you want to measure an analog voltage, in this case you should pin the  AN0 , instead of  RA0 . You should read section 21, but in short, you will need to configure the AD converter by using the registers  ADCON0 ,  ADCON1  and  ADCON2  , And read the results found on  ADRESH: ADRESL .  
 Note that you may  be  potentially read an LDR using digital input, but using it to check analog input is a bit more complicated, but more flexible .

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