Pyqt Real Time Display Of Serial Port Data Throwing Maximum Recursion Depth Exceeded Exception On Qtcore.qtimer.singleshot()
My application scenario: Read continues data (realtime) from serial port and display on PyQt GUI and also store data in csv file. I have tried to use While loop. <-- which does
Solution 1:
As per one of the comment I have tried above with out any parameter and the issue resolved. use captureSensorData instead of captureSensorData(file)
Answer :
# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'D:\TUK\Master Thesis\ML\Lable_Data.ui'## Created by: PyQt5 UI code generator 5.11.2## WARNING! All changes made in this file will be lost!from PyQt5 import QtCore, QtGui, QtWidgets
import traceback
import os
import sys
import serial
import atexit
write_path = "recording_folder1/"
port = "COM6"# COM for windows, it changes when we use unix system
ser = serial.Serial(port, 115200, timeout=None)
file = NoneclassUi_MainWindow(object):
defsetupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(850, 568)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("C:/Users/HackoMan/Google Drive/MasterThesis/Code/QtDesigner/Icon/research4-1.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
MainWindow.setWindowIcon(icon)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.DataLabelingTabObj = QtWidgets.QTabWidget(self.centralwidget)
self.DataLabelingTabObj.setObjectName("DataLabelingTabObj")
self.tab = QtWidgets.QWidget()
self.tab.setObjectName("tab")
self.formLayoutWidget = QtWidgets.QWidget(self.tab)
self.formLayoutWidget.setGeometry(QtCore.QRect(10, 10, 811, 481))
self.formLayoutWidget.setObjectName("formLayoutWidget")
self.gridLayout_2 = QtWidgets.QGridLayout(self.formLayoutWidget)
self.gridLayout_2.setSizeConstraint(QtWidgets.QLayout.SetMaximumSize)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.startCaptureBtn = QtWidgets.QPushButton(self.formLayoutWidget)
self.startCaptureBtn.setObjectName("startCaptureBtn")
self.horizontalLayout.addWidget(self.startCaptureBtn)
self.stopCaptureBtn = QtWidgets.QPushButton(self.formLayoutWidget)
self.stopCaptureBtn.setEnabled(False)
self.stopCaptureBtn.setObjectName("stopCaptureBtn")
self.horizontalLayout.addWidget(self.stopCaptureBtn)
self.gridLayout_2.addLayout(self.horizontalLayout, 3, 1, 1, 1)
self.fileNameLabel = QtWidgets.QLabel(self.formLayoutWidget)
self.fileNameLabel.setObjectName("fileNameLabel")
self.gridLayout_2.addWidget(self.fileNameLabel, 0, 0, 1, 1)
self.fileNameLineEdit = QtWidgets.QLineEdit(self.formLayoutWidget)
self.fileNameLineEdit.setObjectName("fileNameLineEdit")
self.gridLayout_2.addWidget(self.fileNameLineEdit, 0, 1, 1, 1)
self.label = QtWidgets.QLabel(self.formLayoutWidget)
self.label.setObjectName("label")
self.gridLayout_2.addWidget(self.label, 2, 0, 1, 1)
self.classLabelLabel = QtWidgets.QLabel(self.formLayoutWidget)
self.classLabelLabel.setObjectName("classLabelLabel")
self.gridLayout_2.addWidget(self.classLabelLabel, 1, 0, 1, 1)
self.classLabelLineEdit = QtWidgets.QLineEdit(self.formLayoutWidget)
self.classLabelLineEdit.setObjectName("classLabelLineEdit")
self.gridLayout_2.addWidget(self.classLabelLineEdit, 1, 1, 1, 1)
self.sensorTextEdit = QtWidgets.QTextEdit(self.formLayoutWidget)
self.sensorTextEdit.setReadOnly(True)
self.sensorTextEdit.setObjectName("sensorTextEdit")
self.gridLayout_2.addWidget(self.sensorTextEdit, 2, 1, 1, 1)
self.label_2 = QtWidgets.QLabel(self.formLayoutWidget)
self.label_2.setObjectName("label_2")
self.gridLayout_2.addWidget(self.label_2, 3, 0, 1, 1)
self.horizontalLayout_8 = QtWidgets.QHBoxLayout()
self.horizontalLayout_8.setObjectName("horizontalLayout_8")
self.resetBtn = QtWidgets.QPushButton(self.formLayoutWidget)
self.resetBtn.setObjectName("resetBtn")
self.horizontalLayout_8.addWidget(self.resetBtn)
self.closeBtn = QtWidgets.QPushButton(self.formLayoutWidget)
self.closeBtn.setObjectName("closeBtn")
self.horizontalLayout_8.addWidget(self.closeBtn)
self.gridLayout_2.addLayout(self.horizontalLayout_8, 4, 1, 1, 1)
self.DataLabelingTabObj.addTab(self.tab, "")
self.tab_2 = QtWidgets.QWidget()
self.tab_2.setObjectName("tab_2")
self.DataLabelingTabObj.addTab(self.tab_2, "")
self.gridLayout.addWidget(self.DataLabelingTabObj, 0, 1, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
self.DataLabelingTabObj.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.addButtonOperations()
self.addFiledsValidators()
defretranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "Data Collection"))
self.startCaptureBtn.setToolTip(_translate("MainWindow", "click to capture the sensor data"))
self.startCaptureBtn.setWhatsThis(_translate("MainWindow", "click to capture the sensor data"))
self.startCaptureBtn.setText(_translate("MainWindow", "Start"))
self.stopCaptureBtn.setText(_translate("MainWindow", "Stop"))
self.fileNameLabel.setText(_translate("MainWindow", "FileName"))
self.label.setText(_translate("MainWindow", "Sensor Data"))
self.classLabelLabel.setText(_translate("MainWindow", "ClassLabel"))
self.label_2.setText(_translate("MainWindow", "Capture Sensor Data"))
self.resetBtn.setText(_translate("MainWindow", "Reset"))
self.closeBtn.setText(_translate("MainWindow", "Close"))
self.DataLabelingTabObj.setTabText(self.DataLabelingTabObj.indexOf(self.tab), _translate("MainWindow", "Data labeling"))
self.DataLabelingTabObj.setTabText(self.DataLabelingTabObj.indexOf(self.tab_2), _translate("MainWindow", "Classifier"))
defaddButtonOperations(self):
self.closeBtn.clicked.connect(self.closeWindow)
self.resetBtn.clicked.connect(self.resetFields)
self.startCaptureBtn.clicked.connect(self.startCaptureBtnPressedEvent)
self.stopCaptureBtn.clicked.connect(self.stopCaptureSensorData)
defaddFiledsValidators(self):
regexp = QtCore.QRegExp('[a-zA-Z0-9_ -]+')
validator = QtGui.QRegExpValidator(regexp)
self.fileNameLineEdit.setValidator(validator)
self.classLabelLineEdit.setValidator(validator)
defcaptureSensorData(self):
try:
current_label = self.classLabelLineEdit.text()
#new_line = ser.readline().decode('utf-8').rstrip()
new_line = "test1, Test2, Test3"
new_line = new_line + ',' + current_label + '\n'
self.file.write(new_line)
self.file.flush()
self.sensorTextEdit.append(new_line)
self.sensorTextEdit.repaint()
ifnot self.startCaptureBtn.isEnabled():
QtCore.QTimer.singleShot(1, self.captureSensorData)
else:
self.file.close()
except:
traceback.print_exc()
defstartCaptureBtnPressedEvent(self):
try:
if(self.isValidFields()):
# capture the sensor dataprint("#capturing the sensor data")
self.startCaptureBtn.setEnabled(False)
self.stopCaptureBtn.setEnabled(True)
self.startCaptureBtn.repaint()
self.stopCaptureBtn.repaint()
self.file = self.openFileForWriting() # Create/Open file for saving sensor dataifnot self.startCaptureBtn.isEnabled():
QtCore.QTimer.singleShot(1, self.captureSensorData)
else:
# throw error messageprint("#throw error message")
msgBox = QtWidgets.QMessageBox()
msgBox.setText("Please fill the required fields ")
msgBox.setWindowTitle("Warning !! ")
msgBox.setIcon(QtWidgets.QMessageBox.Warning)
msgBox.exec()
except:
traceback.print_exc()
defopenFileForWriting(self):
os.makedirs(os.path.dirname(write_path), exist_ok=True)
file_name = self.fileNameLineEdit.text()
file_name = write_path + file_name + ".csv"
file = open(file_name, 'a')
return file
defstopCaptureSensorData(self):
# stop capture the sensor dataprint("# stop capturing the sensor data")
self.startCaptureBtn.setEnabled(True)
self.stopCaptureBtn.setEnabled(False)
self.startCaptureBtn.repaint()
self.stopCaptureBtn.repaint()
defisValidFields(self):
if(self.fileNameLineEdit.text().__len__()<=0or self.classLabelLineEdit.text().__len__()<=0):
returnFalseelse:
returnTruedefresetFields(self):
self.fileNameLineEdit.clear()
self.classLabelLineEdit.clear()
self.sensorTextEdit.clear()
defcloseWindow(self):
QtCore.QCoreApplication.instance().quit()
defreleaseResource(self):
print("Release Resources !!! ")
if ser.isOpen():
ser.close()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
atexit.register(ui.releaseResource)
sys.exit(app.exec_())
Post a Comment for "Pyqt Real Time Display Of Serial Port Data Throwing Maximum Recursion Depth Exceeded Exception On Qtcore.qtimer.singleshot()"