/*
  Measure Volts.c

  Make voltmeter style measurements with the Propeller Activity Board.

  http://learn.parallax.com/propeller-c-simple-circuits/measure-volts
*/

#include "simpletools.h"                      // Include simpletools
#include "adcDCpropab.h"                      // Include adcDCpropab

int main()                                    // Main function
{
  pause(1000);                                // Wait 1 s for Terminal app
  adc_init(21, 20, 19, 18);                   // CS=21, SCL=20, DO=19, DI=18

  float v2, v3;                               // Voltage variables
  int ad2, ad3;

  while(1)                                    // Loop repeats indefinitely
  {
    v3 = adc_volts(3);                        // Check A/D 3

    putchar(HOME);                            // Cursor -> top-left "home"
    if (v3 > 2.0)
    {
      printf("ad3 = %d%c\n", ad3, CLREOL);
      printf("Too Warm!");
    }
    else if (v3 < 1.0)
    {
      printf("ad3 = %d%c\n", ad3, CLREOL);
      printf("Too Cold!");    // Display volts
    }
    else if (v3 >=1.0 && v3 <=2.0)
    {
      printf("ad3 = %d%c\n", ad3, CLREOL);
      printf("Just Right!");    // Display volts
    }
    pause(100);                               // Wait 1/10 s
  }
}