Python Serial data not displaying in Canvas on tk GUI - python-3.x

Question

I am new to Python and have a problem displaying serial data on my canvas in a tk GUI. I have set up the GUI and all is working, but the data is not displaying in the canvas.
I feel that I am missing something small...
Secondly, when I click the buttons to connect, the GUI freezes up.
Her is my code.
Any help would be welcome
Here is a picture of the current GUI
import serial
import serial.tools.list_ports
import tkinter as tk
from tkinter import *
from tkinter import ttk
import time
import time as tm
from configparser import ConfigParser
import os
import logging
current_time = tm.strftime('%H:%M:%S - %D')
#Get current ports and devices connected
ports = serial.tools.list_ports.comports()
serialInst = serial.Serial()
#List available ports
portlist = []
for onePort in ports:
portlist.append(str(onePort))
#Set logfile
def logfile():
os.system("notepad.exe " + config['Logger']['logfilename'])
# Read config file settings
config = ConfigParser()
config.read('config.ini')
#global logFileName
logFileName = config['Logger']['logfilename']
## Logger Configuration
def setupLogger(filename):
logger = logging.getLogger("Log")
logger.setLevel(config['Logger']['loglevel'])
# create file handler which logs even debug messages
fh = logging.FileHandler(filename)
fh.setLevel(config['Logger']['loglevel'])
# create console handler with a higher log level
ch = logging.StreamHandler()
ch.setLevel(config['Logger']['loglevel'])
# create formatter and add it to the handlers
formatter = logging.Formatter('%(asctime)s ~ %(name)s ~ %(levelname)s ~ %(message)s')
fh.setFormatter(formatter)
ch.setFormatter(formatter)
# add the handlers to the logger
logger.addHandler(fh)
logger.addHandler(ch)
# Return the Created logger
return logger
log = setupLogger(logFileName)
# Method to read config file settings
portsettings = config['serial_settings']
ser = serial.Serial(
port=config['serial_settings']['port'],
baudrate=config['serial_settings']['baudrate'],
parity=config['serial_settings']['parity'],
#stopbits=config['serial_settings']['stop bits']
)
def initPort():
while True:
if ser.in_waiting:
packet = ser.readline.decode('utf')
def connect():
ser.timeout = None
ser.writeTimeout = 0
tk.Label(dataFrame, text='Starting Up Serial Monitor').grid(row=1, column=1)
print("Starting Up Serial Monitor")
try:
ser.open()
except Exception as e:
log.info("Check if serial port is open.")
print("Check if serial port is open: " + str(e))
log.info(str(e))
if ser.isOpen():
try:
ser.flushInput()
ser.flushOutput()
ser.write((config['Commands']['maint']+'\n').encode('ascii'))
tk.Label(dataFrame, text="Serial data sent : " + config['Commands']['maint'], bg='white').grid(row=2, column=1)
ser.write((config['Commands']['inst']+'\n').encode('ascii'))
tk.Label(dataFrame, text="Serial data sent : " + config['Commands']['inst'], bg='white').grid(row=3, column=1)
ser.write((config['Commands']['dnl']+'\n').encode('ascii'))
tk.Label(dataFrame, text="Serial data sent : " + config['Commands']['dnl'], bg='white').grid(row=4, column=1)
ser.write((config['Commands']['status8']+'\n').encode('ascii'))
tk.Label(dataFrame, text="Serial data sent : " + config['Commands']['status8'], bg='white').grid(row=5, column=1)
log.info("Serial Data written to port.")
time.sleep(1)
numberOfLine = 0
while True:
response = ser.readline().decode('utf')
log.info("Reading serial data.")
log.info("Serial data read :"+response)
numberOfLine = numberOfLine + 1
Label(dataFrame, text=("Serial data read : " + response), bg='white').grid(row=7, column=1)
if numberOfLine >= 30:
break
ser.close()
except Exception as e:
print("Error communicating...: " + str(e))
else:
print("Cannot open serial port.")
log.error("Cannot open serial port.")
root = Tk()
root.resizable(True, True)
root.config(bg='light grey')
root.title(config['Info']['Application'] + config['Info']['ver'] + ' - Start Time ' + current_time)
copy_Label = Label(root, text=config['Info']['Copyright'], fg="red", font="Clibri 8 ").grid(column=1, row=50)
window_width = 600
window_height = 500
# get the screen dimension
screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
# find the center point
center_x = int(screen_width/2 - window_width / 2)
center_y = int(screen_height/2 - window_height / 2)
# set the position of the window to the center of the screen
root.geometry(f'{window_width}x{window_height}+{center_x}+{center_y}')
#Serial settings frame
sersetframe = Frame(root, highlightbackground="black", highlightthickness=2)
sersetframe.grid(row=1, column=1, padx=5, pady=5)
#Display serial settings from config
topLabel = Label(sersetframe, text='Serial Config Details. ', fg="black", bg='white', font="Clibri 10 bold").grid(row=2, column=1)
portLabel = Label(sersetframe, text='Port = '+config['serial_settings']['port'], fg="blue", bg='white', font="Clibri 10 bold").grid(row=3, column=1)
baudLabel = Label(sersetframe, text='Baudrate = '+config['serial_settings']['baudrate'], fg="blue", bg='white', font="Clibri 10 bold").grid(row=4, column=1)
paritytLabel = Label(sersetframe, text='Parity = '+config['serial_settings']['parity'], fg="blue", bg='white', font="Clibri 10 bold").grid(row=5, column=1)
#Button frame
buttonframe = Frame(root, highlightbackground="black", highlightthickness=2)
buttonframe.grid(row=49, column=2, padx=5, pady=5)
#Output frame
opframe = Frame(root, highlightbackground="black", highlightthickness=2)
opframelabel = Label(opframe, font='ariel 8 bold', bg='white', fg='blue', text='Serial Output')
opframelabel.grid(row=0, column=1)
opframe.grid(row=10, column=1, padx=5, pady=5)
#Output Canvas
dataCanvas = Canvas(root, width=350, height=200, bg='white')
dataCanvas.grid(row=30, column=1)
#Scrollbar
vsb = Scrollbar(root, orient='vertical', command=dataCanvas.yview)
vsb.grid(row=30, column=0, rowspan=10, sticky='ns')
dataCanvas.config(yscrollcommand=vsb.set)
dataFrame = Frame(dataCanvas, bg='white')
dataCanvas.create_window((10, 0), window=dataFrame, anchor='nw')
# Action Buttons
sendBtn = tk.Button(buttonframe, text='Send', command=connect).grid(column=1, row=7)
connectBtn = tk.Button(buttonframe, text='Connect', command=initPort).grid(column=1, row=8)
exitBtn = tk.Button(buttonframe, text='Exit', command=root.destroy).grid(column=1, row=9)
#Info frame
infoframe = Frame(root, highlightbackground="black", highlightthickness=2)
infoframelabel = Label(infoframe, font='ariel 8 bold', bg='white', fg='black', text='Info:')
infoframelabel.grid(row=0, column=1)
infoframe.grid(row=49, column=1, padx=5, pady=5)
# Check config file settings
dir_path = os.path.dirname(os.path.realpath(__file__))
config_filepath = dir_path+"\config.ini"
# check if the config file exists
exists = os.path.exists(config_filepath)
if exists:
print("**** config.ini file found at : ", config_filepath)
configfileLabel = Label(infoframe,text='Found config file at : '+config_filepath, fg="green",
bg='white', font="Clibri 10 bold").grid(row=49, column=1)
else:
print("**** config.ini file WAS NOT FOUND at : ", config_filepath)
configfileLabel = Label(root,text='DID NOT FIND config file at : ' + config_filepath, fg="red",
bg='white', font="Clibri 10 bold").grid(row=49, column=1)
comportLabel = Label(infoframe, text='Available COM ports : '+str(onePort), fg="black",
bg='white', font="Clibri 10 bold").grid(row=50, column=1)
#Run gui
root.mainloop()