Applications of Embe ...

 #include <main.h> // the file main.h with the

                  // initial settings is included.

                  // This file must be placed in the same

                  // folder with the project.

                  // Also the 18F4550.h file must exist

                  // in the same folder with the project

#include <flex_lcd.h> // The h file of the lcd driver

                      // should be in the same folder where we will save our program.

                      // The #define LCD_DB4 PIN_B4 etc statements in flex_lcd.c

                      // should be checked and possibly modified.

                      // These statements determine the pins of the microcontroller

                      // that are connected to LCD 16x2.

#byte PORTB =0xF81

                     // We attribute to the memory position 0xF81 the name PORTB.

                     // This means that we define a 8 bit variable whose value

                     // will be stored to the memory position F81h.

                     // The memory position F81h is the PORTD data register.

//ADC = 10 Bit => values: 0~1023

unsigned int16 ADC_value;

// ********* main program ************************

void main() {

   set_tris_b(0x00);       //PORTB is defined as output

   lcd_init();          //initialization routine for the LCD 16x2               

   setup_adc(ADC_CLOCK_DIV_8);      // Set ADC conversion time to 8Tosc

   setup_adc_ports(AN0);            // Set RA0 as analog pin

   set_adc_channel(0);              // Select channel 0 (analog input 0)

   while(TRUE){

      delay_ms(1000);            //wait for 1 sec

      lcd_putc("\f");            //clear the screen

      lcd_putc(" ADC value:");   //send a message to the LCD

      lcd_gotoxy(1,2);           //first position of second line 

      ADC_value=read_adc();      //read value from ADC    

      printf(lcd_putc,"%Lu",ADC_value); //send adc value to the LCD  

   }