Serial Communication With Tkinter

I'm writing some code in Python to make a GUI that controls an electronic board. I put buttons on the GUI and send commands by clicking on it. This part works. But I need to receiv

Solution 1:

Actually I succeeded in doing a script that reads what I send and allow me to write a chain when I push a button from serial import * from Tkinter import *

class serial_test(object):
    def __init__(self):
        self.serialPort = "COM1"
        self.baudRate = 9600
        self.ser = Serial(self.serialPort , self.baudRate, timeout=0, writeTimeout=0) #ensure non-blocking
        #make a TkInter Window
        self.root = Tk()
        self.root.wm_title("Reading Serial")      
        # make a scrollbar
        self.scrollbar = Scrollbar(self.root)
        self.scrollbar.pack(side=RIGHT, fill=Y)       
        # make a text box to put the serial output
        self.log = Text ( self.root, width=30, height=30, takefocus=0)
        self.log.pack()       
        # attach text box to scrollbar
        self.log.config(yscrollcommand=self.scrollbar.set)
        self.scrollbar.config(command=self.log.yview)
        #make our own buffer
        self.buff=0
        self.bou=Button(self.root,text='Valid',command=self.writeSerial)
        self.bou.pack()
        self.root.after(100, self.readSerial)        
        self.root.protocol("WM_DELETE_WINDOW", self.Intercept)
        self.root.mainloop()
    def Intercept(self):
        try : 
            self.ser.close()
        except:
            pass
        self.root.destroy()
    def writeSerial(self):
        self.ser.write("Testing")

    def readSerial(self):
        while True:
            self.c = self.ser.read() # attempt to read a character from Serial
            #was anything read?
            if len(self.c) == 0:
                break
            # get the buffer from outside of this function
            self.log.insert(END, self.c)
            self.buff=self.buff+1
            if self.c == '\r':
                for i in range(30-self.buff):
                    self.log.insert(END, ' ')
                    self.buff=0

            if self.buff==30:
                self.buff=0
        self.root.after(10, self.readSerial) # check serial again soon
serial_test()

Solution 2:

import serial
from tkinter import *
class serial_test(object):
    def __init__(self):
        self.serialPort = "COM5"
        self.baudRate = 9600
        self.ser = serial.Serial(self.serialPort , self.baudRate, timeout=0, writeTimeout=0) #ensure non-blocking
        #make a TkInter Window
        self.root = Tk()
        self.root.wm_title("Reading Serial")
        # make a scrollbar
        self.scrollbar = Scrollbar(self.root)
        self.scrollbar.pack(side=RIGHT, fill=Y)
        # make a text box to put the serial output
        self.log = Text ( self.root, width=30, height=30, takefocus=0)
        self.log.pack()
        # attach text box to scrollbar
        self.log.config(yscrollcommand=self.scrollbar.set)
        self.scrollbar.config(command=self.log.yview)
        #make our own buffer
        self.buff=0
        self.bou=Button(self.root,text='Valid',command=self.writeSerial)
        self.bou.pack()
        self.root.after(100, self.readSerial)
        self.root.protocol("WM_DELETE_WINDOW", self.Intercept)
        self.root.mainloop()
    def Intercept(self):
        try :
            self.ser.close()
        except:
            pass
        self.root.destroy()
    def writeSerial(self):
        self.ser.write("Testing")

    def readSerial(self):
        while True:
            self.c = self.ser.read() # attempt to read a character from Serial
            #was anything read?
            if len(self.c) == 0:
                break
            # get the buffer from outside of this function
            self.log.insert(END, self.c)
            self.buff=self.buff+1
            if self.c == '\r':
                for i in range(30-self.buff):
                    self.log.insert(END, ' ')
                    self.buff=0

            if self.buff==30:
                self.buff=0
        self.root.after(10, self.readSerial) # check serial again soon
a=serial_test()
a.readSerial()