diff --git a/mainwindow.h b/mainwindow.h
new file mode 100644
--- /dev/null
+++ b/mainwindow.h
@@ -0,0 +1,38 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QString>
+#include <QSerialPort>
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+    QSerialPort serialPort;
+
+private slots:
+    void loadPortList();
+    void loadBaudRateList();
+    void togglePort();
+    void selectPort(QString portName);
+    void onPortToggled(bool open);
+    void selectBaudRate(QString baudRate);
+
+    void onDataReady();
+
+signals:
+    void portToggled(bool open);
+};
+
+#endif // MAINWINDOW_H