feat: serial communication with mcu and temperature charts

Serialicon.pro

@@ -10,10 +10,12 @@ CONFIG += c++17 console
 
 SOURCES += \
     main.cpp \
-    mainwindow.cpp
+    mainwindow.cpp \
+    mydialog.cpp
 
 HEADERS += \
     mainwindow.h \
+    mydialog.h \
     serial_command.h
 
 FORMS += \

mainwindow.cpp

@@ -8,6 +8,9 @@ MainWindow::MainWindow(QWidget *parent)
     m_serialPort = new QSerialPort();
 
     ui->setupUi(this);
+
+    ui->lcdNumber_temp->setDigitCount(8);
+    initFigure();
 }
 
 MainWindow::~MainWindow()
@@ -30,10 +33,116 @@ void MainWindow::msgBox(QWidget* ctx, QString content) {
 }
 
 void MainWindow::receiveData() {
-    QByteArray data = m_serialPort->readAll();
+    QByteArray msg = m_serialPort->readAll();
-    qDebug() << "\nreceived data:" << data.length() << data.toHex();
+    qDebug() << "\nreceived data:" << msg.count() << msg.toHex();
+
+    uint16_t LSB, MSB;
+
+    int count = 0;
+    if (msg.count() % 2 == 0) {
+        count = msg.count() / 2;
+        for (int i = 0; i < count; i ++) {
+            MSB = ((uchar) msg.at(2 * i)) << 8;
+            LSB = (uchar) msg.at(2 * i + 1);
+            uint16_t tmp = MSB + LSB;
+            uchar  t_cmd = tmp >> 12;
+            uint16_t t_data = tmp & 0xFFF;
+            qDebug() << "CMD: " << t_cmd << " DATA: " << t_data;
+
+            if (t_cmd == MCU_CMD_TEMP) {
+                processTempData(t_data);
+            }
+            if (t_cmd == MCU_CMD_BODY) {
+                processBodyData(t_data);
+            }
+            if (t_cmd == MCU_CMD_GAS_STATE) {
+                processGasState(t_data);
+            }
+            if (t_cmd == MCU_CMD_GAS_DATA) {
+                processGasData(t_data);
+            }
+        }
+    } else {
+        qDebug() << "\n [!] invalid command received";
+    }
 }
 
+void MainWindow::initFigure() {
+    m_chart = new QChart;
+    m_chart->adjustSize();
+    m_chartView = new QChartView(m_chart);
+    m_chartView->adjustSize();
+    m_series = new  QLineSeries;
+    m_chart->addSeries(m_series);
+
+    axisX = new QValueAxis;
+    axisX->setRange(0, 200);
+    axisX->setLabelFormat("%g");
+    axisX->setTitleText("采样时刻");
+    axisY = new QValueAxis;
+    axisY->setRange(0, 50);
+    axisY->setTitleText(tr("温度值"));
+
+    m_chart->setAxisX(axisX, m_series);
+    m_chart->setAxisY(axisY, m_series);
+    m_chart->legend()->hide();
+    m_chart->setTitle(tr("实时温度采集数据"));
+}
+
+void MainWindow::processTempData(uint data) {
+    static uchar s_flag = 0;
+    float computed = 0.0;
+
+    if (data > 0x800) {
+        computed = (0xFFF - data) * (-0.0625);
+    } else {
+        computed = data * 0.0625;
+    }
+
+    ui->lcdNumber_temp->display(computed);
+
+    if (s_flag == 0) {
+        m_maxTemp = computed;
+        m_minTemp = computed;
+        s_flag = 1;
+        ui->label_max_temp->setText(tr("最高温度: %1 ℃").arg(m_maxTemp));
+        ui->label_min_temp->setText(tr("最低温度: %1 ℃").arg(m_minTemp));
+    }
+    if (computed > m_maxTemp + 0.1) {
+        m_maxTemp = computed;
+        ui->label_max_temp->setText(tr("最高温度: %1 ℃").arg(m_maxTemp));
+    }
+    if (computed < m_minTemp - 0.1) {
+        m_minTemp = computed;
+        ui->label_max_temp->setText(tr("最低温度: %1 ℃").arg(m_minTemp));
+    }
+
+    QVector<QPointF> newPoints;
+    QVector<QPointF> oldPoints = m_series->pointsVector();
+
+    if (oldPoints.count() <= (_DISPLAY_DATA_LENGTH_ - 1)) {
+        oldPoints.append(QPointF(oldPoints.count(), computed));
+        m_series->replace(oldPoints);
+    } else {
+        for (int i = 0; i < (_DISPLAY_DATA_LENGTH_ -  1); i ++) {
+            newPoints.append(QPointF(i, oldPoints.at(i + 1).y()));
+        }
+        newPoints.append(QPointF(newPoints.count(), computed));
+        m_series->replace(newPoints);
+    }
+}
+
+void MainWindow::processBodyData(uint data) {
+
+}
+
+void MainWindow::processGasState(uint data) {
+
+}
+
+void MainWindow::processGasData(uint data) {
+
+}
 
 void MainWindow::on_btn_serial_search_clicked()
 {
@@ -234,3 +343,11 @@ void MainWindow::on_comboBox_gas_fetch_currentIndexChanged(int index)
     m_serialPort->write(&buff, sizeof(buff));
 }
 
+
+void MainWindow::on_pushButton_temp_details_clicked()
+{
+    myDialog *dialog = new myDialog();
+    dialog->myWidget->addWidget(m_chartView);
+    dialog->exec();
+}
+

mainwindow.h

@@ -9,7 +9,20 @@
 #include <QSerialPortInfo>
 #include <QDebug>
 
+#include <QtCharts/QChartGlobal>
+#include <QtCharts/QChartView>
+#include <QtCharts/QLineSeries>
+#include <QtCharts/QChart>
+#include <QtCharts/QValueAxis>
+
+QT_BEGIN_NAMESPACE
+class QLineSeries;
+class QChart;
+QT_END_NAMESPACE
+QT_USE_NAMESPACE
+
 #include <serial_command.h>
+#include <mydialog.h>
 
 QT_BEGIN_NAMESPACE
 namespace Ui {
@@ -28,10 +41,10 @@ public:
     void msgBox(QWidget* ctx, QString content);
 
     void initFigure();
-    void processTempData();
+    void processTempData(uint data);
-    void processBodyData();
+    void processBodyData(uint data);
-    void processGasState();
+    void processGasState(uint data);
-    void processGasData();
+    void processGasData(uint data);
 
 private slots:
     void receiveData();
@@ -50,9 +63,25 @@ private slots:
 
     void on_comboBox_gas_fetch_currentIndexChanged(int index);
 
+    void on_pushButton_temp_details_clicked();
+
 private:
     Ui::MainWindow *ui;
 
     QSerialPort* m_serialPort;
+
+    QChart *m_chart;
+    QChartView *m_chartView;
+    QLineSeries *m_series;
+    QValueAxis *axisX;
+    QValueAxis *axisY;
+    float m_maxTemp;
+    float m_minTemp;
+
+    QChart *m_chartGas;
+    QChartView *m_chartViewGas;
+    QLineSeries *m_seriesGas;
+    QValueAxis *axisXGas;
+    QValueAxis *axisYGas;
 };
 #endif // MAINWINDOW_H

mainwindow.ui

@@ -1260,16 +1260,22 @@
            </size>
           </property>
           <property name="smallDecimalPoint">
-           <bool>false</bool>
+           <bool>true</bool>
           </property>
           <property name="digitCount">
            <number>6</number>
           </property>
+          <property name="mode">
+           <enum>QLCDNumber::Mode::Dec</enum>
+          </property>
           <property name="segmentStyle">
-           <enum>QLCDNumber::SegmentStyle::Filled</enum>
+           <enum>QLCDNumber::SegmentStyle::Flat</enum>
           </property>
           <property name="value" stdset="0">
-           <double>30.125000000000000</double>
+           <double>0.000000000000000</double>
+          </property>
+          <property name="intValue" stdset="0">
+           <number>0</number>
           </property>
          </widget>
         </item>
@@ -1280,7 +1286,7 @@
         <item>
          <widget class="QLabel" name="label_max_temp">
           <property name="text">
-           <string>最高温度: 85C</string>
+           <string>最高温度: -- ℃</string>
           </property>
          </widget>
         </item>
@@ -1290,7 +1296,7 @@
            <string notr="true"/>
           </property>
           <property name="text">
-           <string>最低温度: 29.5C</string>
+           <string>最低温度: -- ℃</string>
           </property>
          </widget>
         </item>
@@ -1308,14 +1314,14 @@
         <item>
          <widget class="QLabel" name="label_gas_current">
           <property name="text">
-           <string>当前气体浓度: 0.00122</string>
+           <string>当前气体浓度: 0.00</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLabel" name="label_gas_max">
           <property name="text">
-           <string>最高气体浓度: 0.001220</string>
+           <string>最高气体浓度: 0.00</string>
           </property>
          </widget>
         </item>
@@ -1382,6 +1388,9 @@
       </item>
       <item>
        <widget class="QComboBox" name="comboBox_baud">
+        <property name="currentIndex">
+         <number>1</number>
+        </property>
         <item>
          <property name="text">
           <string>2400</string>
@@ -1391,6 +1400,9 @@
          <property name="text">
           <string>4800</string>
          </property>
+         <property name="icon">
+          <iconset theme="applications-development"/>
+         </property>
         </item>
         <item>
          <property name="text">

mydialog.cpp

@@ -0,0 +1,17 @@
+#include "mydialog.h"
+#include<QHBoxLayout>
+#include<QVBoxLayout>
+myDialog::myDialog(QWidget *parent) : QDialog(parent)
+{
+    QHBoxLayout *hLayout = new QHBoxLayout();
+    myWidget = new QStackedWidget(this);
+    OKbtn = new QPushButton(tr("OK"),this);
+    Cancelbtn = new QPushButton(tr("Cancel"),this);
+    hLayout->addWidget(OKbtn);
+    hLayout->addWidget(Cancelbtn);
+    QVBoxLayout *vLayout = new QVBoxLayout(this);
+    vLayout->addWidget(myWidget);
+    vLayout->addLayout(hLayout);
+    connect(OKbtn,SIGNAL(clicked()),this,SLOT(close()));
+    connect(Cancelbtn,SIGNAL(clicked()),this,SLOT(close()));
+}

mydialog.h

@@ -0,0 +1,20 @@
+#ifndef MYDIALOG_H
+#define MYDIALOG_H
+
+#include <QDialog>
+#include<QPushButton>
+#include<QStackedWidget>
+class myDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit myDialog(QWidget *parent = 0);
+    QPushButton* OKbtn;
+    QPushButton* Cancelbtn;
+    QStackedWidget *myWidget;
+signals:
+
+public slots:
+};
+
+#endif // MYDIALOG_H