MeasureVolts_Demo.c

Make voltmeter style measurements with the Propeller Activity Board.

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

cmake_minimum_required(VERSION 3.12)
find_package(PropWare REQUIRED)
 
project(Simple_MeasureVolts)
 
create_simple_executable(${PROJECT_NAME} MeasureVolts_Demo.c)

 
#include "simpletools.h"                      // Include simpletools
#include "adcDCpropab.h"                      // Include adcDCpropab
 
int main ()                                    // Main function
{
    adc_init(21, 20, 19, 18);                   // CS=21, SCL=20, DO=19, DI=18
 
    float v2, v3;                               // Voltage variables
 
    while (1)                                    // Loop repeats indefinitely
    {
        v2 = adc_volts(2);                        // Check A/D 2
        v3 = adc_volts(3);                        // Check A/D 3
 
        putChar(HOME);                            // Cursor -> top-left "home"
        print("A/D2 = %f V%c\n", v2, CLREOL);     // Display volts
        print("A/D3 = %f V%c\n", v3, CLREOL);     // Display volts
 
        pause(100);                               // Wait 1/10 s
    }
}