#include <stdio.h>
#include <pico/stdlib.h>
#include <pico/time.h>
#include <hardware/adc.h>

#define POT_PIN 26      //potentiometer pin is connected to gpio26 // pot pin connection gnd, GPIO26, 3.3v

int main(){
    stdio_init_all();       // Initialize stdio for printf output (via USB)

    adc_init();                 // Initialize ADC
    adc_gpio_init(POT_PIN);          // Configure GPIO26 for ADC input
    adc_select_input(0);        // Select ADC input 0 (GPIO26)
    while(1){
        uint16_t result = adc_read();              // Read ADC value (0-4095)
        float voltage = result * 3.3f / 4095.0f;   // Convert ADC to voltage
        printf("ADC Raw: %d, Voltage: %.2f V\n", result, voltage);
        sleep_ms(500);
    }
}