Entry Widget issue

[PA3040]

Thanks for continue support
Yes it is working with text but the data coming from serial port does not update the widgets
please see the modified program

import serial
from tkinter import *
from time import sleep
# import matplotlib.pyplot as plt
# from drawnow import *
  
values = []
root = Tk()
root.geometry('600x200')
# plt.ion()
cnt=0
var = StringVar()
serialArduino = serial.Serial('COM3',baudrate = 9600, timeout = 1)
root.title("D Cube Serial Read")
e = Entry(root,width = 35, textvariable = var ,borderwidth = 5)
e.grid(row = 0, column = 0, columnspan = 3,padx = 10,pady = 10)
while True:
    valueRead = serialArduino.readline()
    print(valueRead);
    var.set(valueRead)
#var.set('My Var')
root.mainloop()