Link bluetooth.

Implement class that talks to BLE miflora devices.
Have UI show current values from new class.

src/CMakeLists.txt

@@ -1,8 +1,10 @@
+
 set(qiflora_SRCS
+    miflora/miflora.cpp
     main.cpp
     )
 
 qt5_add_resources(RESOURCES resources.qrc)
 add_executable(qiflora ${qiflora_SRCS} ${RESOURCES})
-target_link_libraries(qiflora Qt5::Core Qt5::Qml Qt5::Quick Qt5::Svg)
+target_link_libraries(qiflora Qt5::Core Qt5::Qml Qt5::Quick Qt5::Svg Qt5::Bluetooth)
 install(TARGETS qiflora ${KF5_INSTALL_TARGETS_DEFAULT_ARGS})

src/contents/ui/main.qml

@@ -2,13 +2,19 @@ import QtQuick 2.6
 import org.kde.kirigami 2.4 as Kirigami
 import QtQuick.Controls 2.0 as Controls
 import QtQuick.Layouts 1.12 as Layouts
+import org.eyecreate.qiflora 1.0
 
 Kirigami.ApplicationWindow {
     id: root
 
     title: "QiFlora"
+    
 
     pageStack.initialPage: mainPageComponent
+    
+    QiFlora {
+        id: qiflora
+    }
 
     Component {
         id: mainPageComponent
@@ -17,6 +23,9 @@ Kirigami.ApplicationWindow {
             mainAction: Kirigami.Action {
                     iconName: "view-refresh"
                     text: i18n("Query Device")
+                    onTriggered: {
+                        //TODO
+                    }
             }
             title: "Monitor"
             
@@ -53,7 +62,12 @@ Kirigami.ApplicationWindow {
                             Kirigami.Heading {
                                 Layouts.Layout.alignment: Qt.AlignCenter
                                 level: 3
-                                text: "40" //TODO: replace
+                                text: {
+                                    if(model.chartType == "temperature") qiflora.temperature + "°C"
+                                    else if(model.chartType == "moisture") qiflora.moisture + "%"
+                                    else if(model.chartType == "conductivity") qiflora.conduction + " µS/cm"
+                                    else if(model.chartType == "brightness") qiflora.brightness + " lux"
+                                }
                             }
                         }
                     }

src/main.cpp

@@ -2,6 +2,7 @@
 #include <QQmlApplicationEngine>
 #include <QtQml>
 #include <QUrl>
+#include "miflora/miflora.h"
 
 Q_DECL_EXPORT int main(int argc, char *argv[])
 {
@@ -12,7 +13,7 @@ Q_DECL_EXPORT int main(int argc, char *argv[])
     QCoreApplication::setApplicationName("qiflora");
 
     QQmlApplicationEngine engine;
-
+    qmlRegisterType<MiFlora>("org.eyecreate.qiflora",1,0,"QiFlora");
     engine.load(QUrl(QStringLiteral("qrc:///main.qml")));
 
     if (engine.rootObjects().isEmpty()) {

src/miflora/miflora.cpp

@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2019  Kevin Whitaker <eyecreate@eyecreate.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "miflora.h"
+#include <QDataStream>
+
+void MiFlora::startSearch()
+{
+    qDebug() << "Starting search...";
+    agent = new QBluetoothDeviceDiscoveryAgent();
+    agent->setLowEnergyDiscoveryTimeout(5000);
+    devices.clear();
+    connect(agent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &MiFlora::foundDevice);
+    agent->start(QBluetoothDeviceDiscoveryAgent::LowEnergyMethod);
+}
+
+void MiFlora::stopSearch()
+{
+    if(agent != NULL) { 
+        agent->stop();
+        agent->disconnect();
+        delete agent;
+    }
+}
+
+void MiFlora::updateDataFromDevice ( QString mac )
+{
+    for(QBluetoothDeviceInfo info: devices) {
+        if(info.address().toString() == mac) {
+            qDebug() << "Discovering on:" + info.name();
+            currentController = QLowEnergyController::createCentral(info);
+            currentController->setRemoteAddressType(QLowEnergyController::PublicAddress);
+            connect(currentController, &QLowEnergyController::serviceDiscovered, this, &MiFlora::serviceDiscovered);
+            connect(currentController, static_cast<void (QLowEnergyController::*)(QLowEnergyController::Error)>(&QLowEnergyController::error), this, &MiFlora::logControllerError);
+            connect(currentController, &QLowEnergyController::connected, this, [this]{
+                currentController->discoverServices();
+            });
+            currentController->connectToDevice();
+        }
+    }
+}
+
+void MiFlora::foundDevice ( const QBluetoothDeviceInfo& device )
+{
+    if(device.coreConfigurations() & QBluetoothDeviceInfo::LowEnergyCoreConfiguration && device.address().toString().startsWith("C4:7C")) {
+        devices.append(device);
+        emit newDeviceFound(device.name(), device.address().toString());
+    }
+}
+
+void MiFlora::logControllerError ( QLowEnergyController::Error err )
+{
+    qDebug() << "Error:" << err;
+}
+
+void MiFlora::logServiceError(QLowEnergyService::ServiceError err)
+{
+    qDebug() << "Service Error:" << err;
+}
+
+
+void MiFlora::serviceStateChanges ( QLowEnergyService::ServiceState state )
+{
+    if(state == QLowEnergyService::ServiceState::ServiceDiscovered) {
+        for(QLowEnergyCharacteristic chrt : sensorService->characteristics()) {
+            if(chrt.uuid().toUInt16() == magicChar) {
+                sensorService->writeCharacteristic(chrt, QByteArray::fromHex("a01f"));
+            }
+        }
+    }
+}
+
+void MiFlora::serviceCharWritten(QLowEnergyCharacteristic changedChar, QByteArray value)
+{
+    if(changedChar.uuid().toUInt16() == magicChar) {
+        //Used to only check sensor data after writting magic bytes.
+        for(QLowEnergyCharacteristic chrt : sensorService->characteristics()) {
+            if(chrt.uuid().toUInt16() == batteryFirmwareChar) {
+                sensorService->readCharacteristic(chrt);
+            }
+            if(chrt.uuid().toUInt16() == sensorsChar) {
+                sensorService->readCharacteristic(chrt);
+            }
+        }
+    }
+}
+
+void MiFlora::serviceCharRead(QLowEnergyCharacteristic readChar, QByteArray value)
+{
+    if(readChar.uuid().toUInt16() == batteryFirmwareChar) {
+        QDataStream parser(value);
+        parser >> battery;
+        parser.skipRawData(1);
+        QByteArray version_buf(5, Qt::Uninitialized);
+        parser.readRawData(version_buf.data(), 5);
+        version = QString(version_buf);
+        emit batteryChanged(battery);
+        qDebug() << "Firmware: " << version;
+    } else if(readChar.uuid().toUInt16() == sensorsChar) {
+        quint16 origTemp;
+        QDataStream parser(value);
+        parser.setByteOrder(QDataStream::LittleEndian);
+        parser >> origTemp;
+        temp = origTemp/ 10.0; //original value in 0.1 C
+        parser.skipRawData(1);
+        parser >> bright;
+        parser >> moisture;
+        parser >> conduct;
+        emit brightnessChanged(bright);
+        emit temperatureChanged(temp);
+        emit moistureChanged(moisture);
+        emit conductionChanged(conduct);
+    }
+}
+
+void MiFlora::serviceDiscovered ( const QBluetoothUuid& gatt )
+{
+    if(gatt == QBluetoothUuid(dataService)) {
+        sensorService = currentController->createServiceObject(gatt);
+        connect(sensorService, &QLowEnergyService::stateChanged, this, &MiFlora::serviceStateChanges);
+        connect(sensorService, static_cast<void (QLowEnergyService::*)(QLowEnergyService::ServiceError)>(&QLowEnergyService::error), this, &MiFlora::logServiceError);
+        connect(sensorService, &QLowEnergyService::characteristicWritten, this, &MiFlora::serviceCharWritten);
+        connect(sensorService, &QLowEnergyService::characteristicRead, this, &MiFlora::serviceCharRead);
+        sensorService->discoverDetails();
+    }
+}
+
+
+

src/miflora/miflora.h

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2019  Kevin Whitaker <eyecreate@eyecreate.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MIFLORA_H
+#define MIFLORA_H
+
+#include <QObject>
+#include <QtBluetooth/QBluetoothDeviceDiscoveryAgent>
+#include <QtBluetooth/QBluetoothDeviceInfo>
+#include <QtBluetooth/QLowEnergyController>
+#include <QtBluetooth/QLowEnergyService>
+#include <QtBluetooth/QLowEnergyCharacteristic>
+
+/**
+ * Class using QtBluetooth to find and retrive info from Mi Flora devices.
+ */
+class MiFlora : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(float temperature NOTIFY temperatureChanged MEMBER temp)
+    Q_PROPERTY(quint32 brightness NOTIFY brightnessChanged MEMBER bright)
+    Q_PROPERTY(quint8 moisture NOTIFY moistureChanged MEMBER moisture)
+    Q_PROPERTY(quint16 conduction NOTIFY conductionChanged MEMBER conduct)
+    Q_PROPERTY(quint8 battery NOTIFY batteryChanged MEMBER battery)
+    
+public:
+    Q_INVOKABLE void startSearch();
+    Q_INVOKABLE void stopSearch();
+    
+    Q_INVOKABLE void updateDataFromDevice(QString mac);
+    //TODO:History?
+    
+signals:
+    void newDeviceFound(QString name, QString address);
+    void temperatureChanged(float temperature);
+    void brightnessChanged(quint32 brightness);
+    void moistureChanged(quint8 moisture);
+    void conductionChanged(quint16 conduction);
+    void batteryChanged(quint8 battery);
+    
+private:
+    void foundDevice(const QBluetoothDeviceInfo &device);
+    void serviceDiscovered(const QBluetoothUuid &gatt);
+    void logControllerError(QLowEnergyController::Error err);
+    void logServiceError(QLowEnergyService::ServiceError err);
+    void serviceStateChanges(QLowEnergyService::ServiceState state);
+    void serviceCharWritten(QLowEnergyCharacteristic changedChar, QByteArray value);
+    void serviceCharRead(QLowEnergyCharacteristic readChar, QByteArray value);
+    
+    QBluetoothDeviceDiscoveryAgent *agent;
+    QList<QBluetoothDeviceInfo> devices;
+    QLowEnergyController *currentController;
+    QLowEnergyService *sensorService;
+    
+    const quint16 dataService = 4612; //0x1204
+    const quint16 batteryFirmwareChar = 6658;//0x1a02
+    const quint16 sensorsChar = 6657; //0x1a01
+    const quint16 magicChar = 6656; //0x1a00
+
+    float temp = 0.0;
+    quint32 bright = 0;
+    quint8 moisture = 0;
+    quint16 conduct = 0;
+    quint8 battery = 0;
+    QString version;
+
+};
+
+#endif // MIFLORA_H