ÿþ/**serial Example for PIC18F252/////////////

//by dj sniff

//july 2004

//connect a variable resister to A0 and A1

//connect LED to B7

//connect serial transmit pin to pin 2 of 

//serial connector

*///////////////////////////////////////////





//include standard libraries and headers

#include <18F252.h>

#device ADC=10

#include <stdlib.h>





//set fuses

#fuses HS, NOLVP, NOWDT, PUT, NOPROTECT



//20 MHZ crystal delay

#use delay (clock=20000000)



//set serial port inverted

#use rs232(baud=9600,xmit=PIN_C5,rcv=PIN_C4, invert)



//define outputs

#define checkLED PIN_B7



main()

{

int16 potVar;

int16 lightVar;

byte i;



// setup ADC

setup_adc(  ADC_CLOCK_INTERNAL  );

setup_adc_ports( ALL_ANALOG );







//startup led///////////////////////

for (i = 0; i < 5; i++){

 output_high(checkLED);

 delay_ms(100);

 output_low(checkLED);

 delay_ms(100);

}

///////////////////////////////////



printf("hello world\n\r");



 while (true)

   {

      set_adc_channel(0);

      delay_ms(5);

      potvar=read_adc();

      printf( "the pot value is %ld\n\r ", potvar);

      

      delay_ms(500);

      

      set_adc_channel(1);

      delay_ms(5);

      lightvar=read_adc();

      printf( "the light Vavue is %ld\n\r ", lightvar);



      delay_ms(500);

}

}