yes Spada / Mbed OS programme

WeatherStation.cpp

Committer:
loicguibert
Date:
2019-03-08
Revision:
5:0d9e292a9d06
Parent:
4:bfe306335065
Child:
6:5f56e551f84f

File content as of revision 5:0d9e292a9d06:

#include "WeatherStation.h"

// initialization of static data members
    const int WeatherStation::m_blinkInterval = 500;
    const int WeatherStation::m_measurementInterval = 10000;

// constructor
WeatherStation::WeatherStation(NRFDevKit& nrfDevKit, Logger& logger) 
:
    m_nrfDevKit(nrfDevKit),
    m_logger(logger),
    m_lps25hb(m_nrfDevKit.getSDA(), m_nrfDevKit.getSCL(), logger),
    m_hdc1000(m_nrfDevKit.getSDA(), m_nrfDevKit.getSCL(), m_nrfDevKit.getDataRdy(), logger){
}

void WeatherStation::start() {
  m_logger.log("WeatherStation is starting\r\n");
    
    
  // make sure that the LPW25HB device is present
  // if not log an error and return
  if (m_lps25hb.probe()) {
      m_logger.log("LPS25HB device found\r\n");    
  } else {
      m_logger.log("Device LPS25HB not found!\r\n");
      return;
  }
    
    
  // make sure that the HDC1000 device is present
  // if not log an error and return
  if (m_hdc1000.probe()) {
      m_logger.log("HDC1000 device found\r\n");   
  } else {
      m_logger.log("Device HDC1000 not found!\r\n");
      return;
  }  
    
  
  // to show we're running we'll blink every m_blinkInterval milliseconds
  // the syntax used here is the following:
  //   1. the first argument represents the interval in milliseconds at which the event is executed
  //   2. the second argument represents  the address of instance of the object on which the method passed in argument 3 will be applied
  //  3. the third argument is the address of the method to be called (applied to the object passed as argument 2)
  m_eventQueue.call_every(m_blinkInterval, &m_nrfDevKit, &NRFDevKit::blink1);

  // schedule measurements every m_measurementInterval milliseconds
  // apply the same syntax as in the previous call
  // 1. the measurement interval is m_measurementInterval
  // 2. the object is the WeatherStation itself (recall how you refer to the current object in Java - the same applies in c++)
  // 3. the method to call is performMeasurements()
  // m_eventQueue.call_every(TO COMPLETED);
  
  m_eventQueue.call_every(m_measurementInterval, this, &WeatherStation::performMeasurements);
    
  // this will not return until shutdown
  m_eventQueue.dispatch_forever(); 
}
 
void WeatherStation::performMeasurements(void) {
  m_logger.log("\r\nPerforming measurements:\r\n");
  
  // get and log pressure
  m_logger.log("    Pressure:      %.02f hPa\r\n", m_lps25hb.getPressure());
  
  // get and log temperature
  m_logger.log("    Temperature:    %.02f C\r\n", m_hdc1000.getTemperature());
  
  // get and log humidity
  m_logger.log("    Humidiy:        %.02f %%\r\n", m_hdc1000.getHumidity());
  
  // get and log the battery level
  m_logger.log("    Battery:        %u mV\r\n", m_nrfDevKit.getBatteryLevel());
  
}