contiki/examples/zolertia/zoul/test-weather-meter.c
2016-01-19 18:03:16 +01:00

160 lines
6.2 KiB
C

/*
* Copyright (c) 2016, Zolertia - http://www.zolertia.com
* 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.
*
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup zoul-examples
* @{
*
* \defgroup zoul-weather-meter-test Test the Sparkfun's weather meter
*
* The example application shows how to read data from the anemometer, wind vane
* and rain gauge, on board the Sparkfun's weater meter
*
* @{
*
* \file
* Test application for the Sparkfun's weather meter
*
* \author
* Antonio Lignan <alinan@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "cpu.h"
#include "sys/etimer.h"
#include "dev/leds.h"
#include "dev/weather-meter.h"
#include <stdio.h>
#include <stdint.h>
/*---------------------------------------------------------------------------*/
#define READ_SENSOR_PERIOD CLOCK_SECOND
#define ANEMOMETER_THRESHOLD_TICK 13 /**< 16 Km/h */
#define RAIN_GAUGE_THRESHOLD_TICK 15 /**< each increment of 4.19 mm */
/*---------------------------------------------------------------------------*/
static struct etimer et;
/*---------------------------------------------------------------------------*/
PROCESS(test_weather_meter_sensors, "Test Weather meter sensors");
AUTOSTART_PROCESSES(&test_weather_meter_sensors);
/*---------------------------------------------------------------------------*/
static void
rain_callback(uint16_t value)
{
/* To calculate ticks from mm of rain, divide by 0.2794 mm */
printf("*** Rain gauge over threshold (%u ticks)\n", value);
weather_meter.configure(WEATHER_METER_RAIN_GAUGE_INT_OVER,
(value + RAIN_GAUGE_THRESHOLD_TICK));
}
/*---------------------------------------------------------------------------*/
static void
wind_speed_callback(uint16_t value)
{
/* This checks for instant wind speed values (over a second), the minimum
* value is 1.2 Km/h (one tick), as the reference is 2.4KM/h per rotation, and
* the anemometer makes 2 ticks per rotation. Instant speed is calculated as
* multiples of this, so if you want to check for 16Km/h, then it would be 13
* ticks
*/
printf("*** Wind speed over threshold (%u ticks)\n", value);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(test_weather_meter_sensors, ev, data)
{
PROCESS_BEGIN();
static uint32_t rain;
static uint16_t wind_speed;
static uint16_t wind_dir;
static uint16_t wind_dir_avg_2m;
static uint16_t wind_speed_avg;
static uint16_t wind_speed_avg_2m;
static uint16_t wind_speed_max;
printf("Weather meter test example, integration period %u\n",
WEATHER_METER_AVG_PERIOD);
/* Register the callback handler when thresholds are met */
WEATHER_METER_REGISTER_ANEMOMETER_INT(wind_speed_callback);
WEATHER_METER_REGISTER_RAIN_GAUGE_INT(rain_callback);
/* Enable the sensors, this has to be called before any of the interrupt calls
* like the ones below
*/
SENSORS_ACTIVATE(weather_meter);
/* And the upper threshold value to compare and generate an interrupt */
weather_meter.configure(WEATHER_METER_ANEMOMETER_INT_OVER,
ANEMOMETER_THRESHOLD_TICK);
weather_meter.configure(WEATHER_METER_RAIN_GAUGE_INT_OVER,
RAIN_GAUGE_THRESHOLD_TICK);
etimer_set(&et, READ_SENSOR_PERIOD);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
rain = weather_meter.value(WEATHER_METER_RAIN_GAUGE);
wind_speed = weather_meter.value(WEATHER_METER_ANEMOMETER);
wind_dir = weather_meter.value(WEATHER_METER_WIND_VANE);
wind_dir_avg_2m = weather_meter.value(WEATHER_METER_WIND_VANE_AVG_X);
wind_speed_avg = weather_meter.value(WEATHER_METER_ANEMOMETER_AVG);
wind_speed_avg_2m = weather_meter.value(WEATHER_METER_ANEMOMETER_AVG_X);
wind_speed_max = weather_meter.value(WEATHER_METER_ANEMOMETER_MAX);
#if WEATHER_METER_RAIN_RETURN_TICKS
rain *= WEATHER_METER_AUX_RAIN_MM;
if(rain > (WEATHER_METER_AUX_RAIN_MM * 3)) {
printf("Rain: %lu.%lu mm, ", (rain / 10000), (rain % 10000));
#else
if(rain >= 10) {
printf("Rain: %u.%u mm, ", (rain / 10), (rain % 10));
#endif
} else {
printf("Rain: 0.%lu mm, ", rain);
}
printf("Wind dir: %u.%01u deg, ", (wind_dir / 10), (wind_dir % 10));
printf("(%u.%01u deg avg)\n", (wind_dir_avg_2m / 10), (wind_dir_avg_2m % 10));
printf("Wind speed: %u m/h ", wind_speed);
printf("(%u m/h avg, %u m/h 2m avg, %u m/h max)\n\n", wind_speed_avg,
wind_speed_avg_2m,
wind_speed_max);
etimer_reset(&et);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
* @}
*/