（ 5、 ... and ）PyQt5 Series of tutorials ： Use Pycharm Yes PyQt5 Carry out internal logic design in the serial port assistant parameter options （ Two ）

1. QSpinBox Counter control ：

picture source : IOT Inn .

2. Name the counter （spinBox） Control object is “spin_01_send”

3. Logic code ：

import sys
from PyQt5 import QtWidgets
import USART_select_03

#  Build a class usartMainWindow
class usartMainWindow(QtWidgets.QMainWindow,USART_select_03.Ui_MainWindow):
    def __init__(self):   #  initialization 
        super().__init__()
        self.setupUi(self)

        #  Initialize serial port assistant （ASCII perhaps Hex） The choice of （radio_Buttom）
        self.radioButton_recv_ascii.setChecked(True)
        self.radioButton_send_ascii.setChecked(True)
        #  initialization SpinBox Time range setting (100,30000), Step number setting (100), loop , Initial value （100）
        self.spinBox_01_send.setRange(100, 30*1000)
        self.spinBox_01_send.setSingleStep(100)
        self.spinBox_01_send.setWrapping(True)
        self.spinBox_01_send.setValue(1000)

        #  Bind signal to slot ######################################################################
        #  When comboBox_baud（ Current baud rate ） change , Bind to comboBox_baud_cb event 
        self.comboBox_baud.currentIndexChanged.connect(self.comboBox_baud_cb)

        #  When btn_send（ Button clicked ）, Binding connection btn_send_cd event 
        self.btn_send.clicked.connect(self.btn_send_cb)

        #  The beginning of the menu bar 、 Pause 、 stop it 、 Clear the key operation 
        self.action_Start.triggered.connect(self.action_start_cb)
        self.action_Pause.triggered.connect(self.action_pause_cb)
        self.action_Stop.triggered.connect(self.action_stop_cb)
        self.action_Clean.triggered.connect(self.action_clean_cb)

        #  Receive settings 、 Send settings （radio_Buttom） Single click event binding triggers 
        self.radioButton_send_ascii.clicked.connect(self.radioButton_send_ascii_cb)
        self.radioButton_send_hex.clicked.connect(self.radioButton_send_hex_cb)
        self.radioButton_recv_ascii.clicked.connect(self.radioButton_recv_ascii_cb)
        self.radioButton_recv_hex.clicked.connect(self.radioButton_recv_hex_cb)

        #  Detect word wrap 、 Show send 、 Display time 、 Repeat send button , Bind signal to slot 
        self.checkBox_auto_line.toggled.connect(self.checkBox_auto_line_cb)
        self.checkBox_show_send.toggled.connect(self.checkBox_show_send_cb)
        self.checkBox_show_time.toggled.connect(self.checkBox_show_time_cb)
        self.checkBox_resend.toggled.connect(self.checkBox_resend_cb)

        #  timer SpinBox
        self.spinBox_01_send.valueChanged.connect(self.spinBox_cb)




    #  The event corresponding to the signal triggers  #########################################################################
    #  Baud rate event 
    def comboBox_baud_cb(self):
        content = self.comboBox_baud.currentText()
        print("combox's value is ", content)
        text = (" You currently selected %s" %content)
        QtWidgets.QMessageBox.information(self, " Tips ", text, QtWidgets.QMessageBox.Ok |QtWidgets.QMessageBox.Cancel)

    #  Click the send event button 
    def btn_send_cb(self):
        print("you clicked btn_send.")
        text = self.textEdit_get.toPlainText()  #  Get objects  textEdit_get  The text in the 
        print("text is ", text)
        #  Put the object textEdit_get Text in box , Load into object comboBox_uart in 
        self.comboBox_uart.addItem(text)

    #  The event triggered by clicking the start button of the menu （Start、Pause、Stop、Clean）
    def action_start_cb(self):
        print("you clicked action_start")
    #  The event triggered by clicking the pause button of the menu 
    def action_pause_cb(self):
        print("you clicked action_pause")
    #  The event triggered by clicking the stop button of the menu 
    def action_stop_cb(self):
        print("you clicked action_stop")
    #  The event triggered by clicking the clear button of the menu 
    def action_clean_cb(self):
        print("you clicked action_clean")

    #  The event triggered when the radio button is checked （ASCII send out 、Hex send out 、ASCII receive 、Hex receive ）
    def radioButton_send_ascii_cb(self):
        print("you selected radioButton_send_ascii")
    def radioButton_send_hex_cb(self):
        print("you selected radioButton_send_hex")
    def radioButton_recv_ascii_cb(self):
        print("you selected radioButton_recv_ascii")
    def radioButton_recv_hex_cb(self):
        print("you selected radioButton_recv_hex")

    # checkBox Events trigger （ Automatic line feed 、 Show send 、 Display time 、 Repeat send ） Judge whether it is selected 
    def checkBox_auto_line_cb(self):
        print("you select checkBox_auto_line")
        res_auto_line = self.checkBox_auto_line.isChecked()
        print("res_auto_line is ", res_auto_line)
        res_show_send = self.checkBox_show_send.isChecked()
        print("res_show_send ", res_show_send)
        res_show_time = self.checkBox_show_time.isChecked()
        print("res_show_timw ", res_show_time)
        res_repeat_send = self.checkBox_resend.isChecked()
        print("rec_resend is ", res_repeat_send)
    def checkBox_show_send_cb(self):
        print("you select checkBox_show_send")
        print("you select checkBox_auto_line")
        res_auto_line = self.checkBox_auto_line.isChecked()
        print("res_auto_line is ", res_auto_line)
        res_show_send = self.checkBox_show_send.isChecked()
        print("res_show_send ", res_show_send)
        res_show_time = self.checkBox_show_time.isChecked()
        print("res_show_timw ", res_show_time)
        res_repeat_send = self.checkBox_resend.isChecked()
        print("rec_resend is ", res_repeat_send)
    def checkBox_show_time_cb(self):
        print("you select checkBox_show_time")
        print("you select checkBox_auto_line")
        res_auto_line = self.checkBox_auto_line.isChecked()
        print("res_auto_line is ", res_auto_line)
        res_show_send = self.checkBox_show_send.isChecked()
        print("res_show_send ", res_show_send)
        res_show_time = self.checkBox_show_time.isChecked()
        print("res_show_timw ", res_show_time)
        res_repeat_send = self.checkBox_resend.isChecked()
        print("rec_resend is ", res_repeat_send)
    def checkBox_resend_cb(self):
        print("you select checkBox_resend")
        print("you select checkBox_auto_line")
        res_auto_line = self.checkBox_auto_line.isChecked()
        print("res_auto_line is ", res_auto_line)
        res_show_send = self.checkBox_show_send.isChecked()
        print("res_show_send ", res_show_send)
        res_show_time = self.checkBox_show_time.isChecked()
        print("res_show_timw ", res_show_time)
        res_repeat_send = self.checkBox_resend.isChecked()
        print("rec_resend is ", res_repeat_send)

    #  timer SpinBox
    def spinBox_cb(self):
        value = self.spinBox_01_send.value()
        print("SpinBox_01_send value is ", value)

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = usartMainWindow()
    MainWindow.show()

    sys.exit(app.exec_())

The real-time value of the counter is displayed and extracted , effect ：