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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());
}