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WeatherStation.cpp@22:79c64511d34d, 2019-05-29 (annotated)

Committer:
loicguibert
Date:
Wed May 29 06:36:54 2019 +0000
Revision:
22:79c64511d34d
Parent:
19:e056f98192f2
Child:
23:f45027ac625c
EnvironmentalService modified: each characteristic splitted

Who changed what in which revision?

UserRevisionLine numberNew contents of line
loicguibert 4:bfe306335065 1 #include "WeatherStation.h"
loicguibert 4:bfe306335065 2
loicguibert 4:bfe306335065 3 // initialization of static data members
loicguibert 12:856286ad4cdc 4 const int WeatherStation::m_measurementInterval = 9000;
loicguibert 12:856286ad4cdc 5 const string WeatherStation::m_stationName = "GuiSpa";
loicguibert 4:bfe306335065 6
loicguibert 4:bfe306335065 7 // constructor
loicguibert 11:dbc310addbf6 8 WeatherStation::WeatherStation(IDevKit& iDevKit, Logger& logger, BLE& ble) :
loicguibert 14:c5578b5edabe 9 GAPPeripheral(ble, iDevKit, m_stationName, GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED, m_eventQueue, logger),
loicguibert 12:856286ad4cdc 10 m_iDevKit(iDevKit),
loicguibert 12:856286ad4cdc 11 m_logger(logger),
loicguibert 12:856286ad4cdc 12 m_lps25hb(m_iDevKit.getSDA(), m_iDevKit.getSCL(), m_logger),
loicguibert 12:856286ad4cdc 13 m_hdc1000(m_iDevKit.getSDA(), m_iDevKit.getSCL(), m_iDevKit.getDataRdy(), m_logger),
loicguibert 16:eed9a9ba319c 14 m_history(logger),
loicguibert 14:c5578b5edabe 15 m_batteryService(ble, m_logger),
loicguibert 14:c5578b5edabe 16 m_environmentalService(ble, m_logger) {
loicguibert 12:856286ad4cdc 17 // Set the right timing at the Station's start
loicguibert 12:856286ad4cdc 18 time(NULL);
loicguibert 4:bfe306335065 19 }
loicguibert 4:bfe306335065 20
loicguibert 4:bfe306335065 21 void WeatherStation::start() {
loicguibert 4:bfe306335065 22 m_logger.log("WeatherStation is starting\r\n");
loicguibert 5:0d9e292a9d06 23
loicguibert 4:bfe306335065 24 // make sure that the LPW25HB device is present
loicguibert 4:bfe306335065 25 // if not log an error and return
loicguibert 5:0d9e292a9d06 26 if (m_lps25hb.probe()) {
loicguibert 5:0d9e292a9d06 27 m_logger.log("LPS25HB device found\r\n");
loicguibert 5:0d9e292a9d06 28 } else {
loicguibert 5:0d9e292a9d06 29 m_logger.log("Device LPS25HB not found!\r\n");
loicguibert 5:0d9e292a9d06 30 return;
loicguibert 5:0d9e292a9d06 31 }
loicguibert 5:0d9e292a9d06 32
loicguibert 4:bfe306335065 33 // make sure that the HDC1000 device is present
loicguibert 4:bfe306335065 34 // if not log an error and return
loicguibert 5:0d9e292a9d06 35 if (m_hdc1000.probe()) {
loicguibert 5:0d9e292a9d06 36 m_logger.log("HDC1000 device found\r\n");
loicguibert 5:0d9e292a9d06 37 } else {
loicguibert 5:0d9e292a9d06 38 m_logger.log("Device HDC1000 not found!\r\n");
loicguibert 5:0d9e292a9d06 39 return;
loicguibert 5:0d9e292a9d06 40 }
loicguibert 6:5f56e551f84f 41
loicguibert 6:5f56e551f84f 42 //Cleaning the console by the addition of a blank line
loicguibert 6:5f56e551f84f 43 m_logger.log("\r\n");
loicguibert 4:bfe306335065 44
loicguibert 4:bfe306335065 45 // schedule measurements every m_measurementInterval milliseconds
loicguibert 4:bfe306335065 46 // apply the same syntax as in the previous call
loicguibert 4:bfe306335065 47 // 1. the measurement interval is m_measurementInterval
loicguibert 4:bfe306335065 48 // 2. the object is the WeatherStation itself (recall how you refer to the current object in Java - the same applies in c++)
loicguibert 4:bfe306335065 49 // 3. the method to call is performMeasurements()
loicguibert 4:bfe306335065 50 // m_eventQueue.call_every(TO COMPLETED);
loicguibert 4:bfe306335065 51 m_eventQueue.call_every(m_measurementInterval, this, &WeatherStation::performMeasurements);
loicguibert 11:dbc310addbf6 52
loicguibert 12:856286ad4cdc 53 // Starting the BLE peripheral with Advertising State
loicguibert 14:c5578b5edabe 54 GAPPeripheral::advertise();
loicguibert 11:dbc310addbf6 55 }
loicguibert 15:aac1b3950a9e 56
loicguibert 15:aac1b3950a9e 57
loicguibert 15:aac1b3950a9e 58 void WeatherStation::onInitComplete(BLE::InitializationCompleteCallbackContext *event) {
loicguibert 15:aac1b3950a9e 59 GAPPeripheral::onInitComplete(event);
loicguibert 15:aac1b3950a9e 60 m_batteryService.addServiceToGattServer();
loicguibert 15:aac1b3950a9e 61 m_environmentalService.addServiceToGattServer();
loicguibert 15:aac1b3950a9e 62 performMeasurements();
loicguibert 15:aac1b3950a9e 63 }
loicguibert 15:aac1b3950a9e 64
loicguibert 4:bfe306335065 65
loicguibert 4:bfe306335065 66 void WeatherStation::performMeasurements(void) {
loicguibert 6:5f56e551f84f 67 m_logger.log("Performing measurements:\r\n");
loicguibert 4:bfe306335065 68
loicguibert 4:bfe306335065 69 // get and log pressure
loicguibert 12:856286ad4cdc 70 double pressure = m_lps25hb.getPressure();
loicguibert 12:856286ad4cdc 71 m_logger.log("Pressure: %.02f hPa\r\n", pressure);
loicguibert 4:bfe306335065 72
loicguibert 4:bfe306335065 73 // get and log temperature
loicguibert 12:856286ad4cdc 74 double temp = m_hdc1000.getTemperature();
loicguibert 12:856286ad4cdc 75 m_logger.log("Temperature: %.02f C\r\n", temp);
loicguibert 4:bfe306335065 76
loicguibert 4:bfe306335065 77 // get and log humidity
loicguibert 12:856286ad4cdc 78 double humidity = m_hdc1000.getHumidity();
loicguibert 12:856286ad4cdc 79 m_logger.log("Humidiy: %.02f %%\r\n", humidity);
loicguibert 4:bfe306335065 80
loicguibert 4:bfe306335065 81 // get and log the battery level
loicguibert 12:856286ad4cdc 82 uint8_t battery = m_iDevKit.getBatteryLevel();
loicguibert 15:aac1b3950a9e 83 m_logger.log("Battery: %u %%\r\n", battery);
loicguibert 6:5f56e551f84f 84
loicguibert 12:856286ad4cdc 85 // Cleaning the console by the addition of a blank line
loicguibert 6:5f56e551f84f 86 m_logger.log("\r\n");
loicguibert 4:bfe306335065 87
loicguibert 12:856286ad4cdc 88 // get and encode the system's elapsed time
loicguibert 12:856286ad4cdc 89 time_t seconds = time(NULL);
loicguibert 12:856286ad4cdc 90 float time = (uint32_t)seconds;
loicguibert 12:856286ad4cdc 91
loicguibert 12:856286ad4cdc 92 // Saving the measured values
loicguibert 17:76787f5a334f 93 m_history.addMeasurement(((uint32_t)(pressure*10)), ((int16_t)(temp*100)), ((uint16_t)(humidity*100)), ((uint32_t)time));
loicguibert 12:856286ad4cdc 94
loicguibert 22:79c64511d34d 95 // Send the measured values to GATT's services
loicguibert 22:79c64511d34d 96 m_environmentalService.updatePressureLevel ((uint32_t)(pressure*10));
loicguibert 22:79c64511d34d 97 m_environmentalService.updateTemperatureLevel ((int16_t)(temp*100));
loicguibert 22:79c64511d34d 98 m_environmentalService.updateHumidityLevel ((uint16_t)(humidity*100));
loicguibert 22:79c64511d34d 99 // get pressure trend for the environmental service
spadaaa 19:e056f98192f2 100 uint32_t averagePressure = m_history.getPressureTrend();
loicguibert 22:79c64511d34d 101 m_environmentalService.updatePressureLevel (averagePressure);
loicguibert 15:aac1b3950a9e 102 m_batteryService.updateBatteryLevel(battery);
loicguibert 5:0d9e292a9d06 103 }