pc-system/btnserialtool.h

#ifndef BTNSERIALTOOL_H
#define BTNSERIALTOOL_H
#include <QByteArray>
#include <QLineEdit>
#include <QObject>
#include <QPushButton>
#include <QSerialPort>
#include <QTextEdit>

class BtnSerialTool : public QObject {
    Q_OBJECT
   public:
    BtnSerialTool(QObject *parent = nullptr);
    void openSerialPort();
    void closeSerialPort();
    void readData();
    bool sendData(const QByteArray &data);
   signals:
    void openCloseButtonTextChanged(const QString &text);
    void openError();
    void dataReceived(const QByteArray &data);
   public slots:
    void handleSendDataReques(const QByteArray &data);

   private:
    void setupSerialPort();
    QByteArray buffer;  // 确保这里声明了 buffer 变量
    QSerialPort serialPort;
};

#endif  // BTNSERIALTOOL_H