/////////////////////////////
//
// prog_practice_10 project
// adc1.cpp
//
// 9/30/22  tj
//
// practice using AnalogIn
//
////////////////////////////
#include "mbed.h"
#include <stdio.h>

#define T_WAIT 500000   // 0.5sec

void splash(void);
float scale(float in_val, float scale_val);

int main(void){
    setbuf(stdout, NULL);

    splash();

    float adc_in_val;
    float max_measured;
    int adc_in_val_16;
    ////////
    // characterized maesurement
    ////////
    max_measured = 0.512;
    ////////

    // create ADC object
    AnalogIn myADC(A3);

    // infinite loop
    while(1){
        adc_in_val = scale(myADC.read(), max_measured);
        printf("ADC val is: %f\r", adc_in_val);
        // adc_in_val_16 = myADC.read_u16();
        // printf("ADC val is: %-5i\r", adc_val_in_16);
        wait_us(T_WAIT);
    }// end while

    return 0;
}// end main

void splash(void){
    printf("\n\nAnalog In Program\n\n");

    return;
}// end splash

float scale(float in_val, float scale_val){
    // scale val is the max measured value
    // max measured * scale_val = 1
    return in_val/scale_val;
}// end scale