batv-test.c

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/*
 * Copyright (c) 2011, Zolertia(TM) is a trademark of Advancare,SL
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This file is part of the Contiki operating system.
 *
 */

/**
 * \file
 *         Testing the Potentiometer in Zolertia Z1 Starter Platform.
 * \author
 *         Enric M. Calvo <ecalvo@zolertia.com>
 */

#include "contiki.h"
#include "dev/batv-sensor.h"
#include <stdio.h>              
#include "ms1-io.h"

float floor(float x){
  if(x>=0.0f) return (float) ((int)x);
  else        return (float) ((int)x-1);
}


/*---------------------------------------------------------------------------*/
PROCESS(test_batv_process, "Testing Batv measurementin Z1 Feshie");
AUTOSTART_PROCESSES(&test_batv_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(test_batv_process, ev, data)
{

  PROCESS_BEGIN();
  ms1_io_init();
  ms1_sense_on();
  SENSORS_ACTIVATE(batv_sensor);

  while(1) {
    uint16_t value = batv_sensor.value(0);
    float voltage = (float)value / 273;
    printf("Batv Value: %i\n", value);
    printf("Approx Voltage: %ld.%02d\n", (long)voltage, (voltage - floor(voltage))*100 );
  }

  SENSORS_DEACTIVATE(batv_sensor);

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/