adc.c

#include <xc.h>
#include <stdint.h>

// Function prototypes
void ADC_Init();
uint16_t ADC_Read(uint8_t channel);

void main(void) {
    // Initialize ADC
    ADC_Init();

    while (1) {
        // Read analog input from channel 0
        uint16_t adcValue = ADC_Read(0);

        // Process the ADC value as needed
        // ...

        // Delay between consecutive readings
        __delay_ms(500);
    }

    return;
}

void ADC_Init() {
    // Configure ADC module
    ADCON1bits.ADFM = 1;    // Right justify result
    ADCON1bits.ADCS = 0b111;    // FOSC/64 as the conversion clock source
    ADCON1bits.ADPREF = 0b00;   // VREF+ = AVDD, VREF- = AVSS
    ADCON0bits.ADON = 1;    // Enable ADC module
}

uint16_t ADC_Read(uint8_t channel) {
    // Configure ADC channel
    ADCON0bits.CHS = channel;

    // Start ADC conversion
    ADCON0bits.ADGO = 1;

    // Wait for ADC conversion to complete
    while (ADCON0bits.ADGO)
        ;

    // Return the ADC result
    return ((ADRESH << 8) + ADRESL);
}