[Tkinter] Anyone know what happened to my button?

[Yoriz]

Try this, I can't test it so fingers crossed, I don't know if data.split(",") will be in the right order for self.form_frame.set_str_variables

import functools
import tkinter as tk
from concurrent import futures

from digi.xbee.devices import XBeeDevice

PORT = "COM5"
BAUD_RATE = 9600
device = XBeeDevice(PORT, BAUD_RATE)

thread_pool_executor = futures.ThreadPoolExecutor(max_workers=1)


def tk_after(target):

    @functools.wraps(target)
    def wrapper(self, *args, **kwargs):
        args = (self,) + args
        self.after(0, target, *args, **kwargs)

    return wrapper


def submit_to_pool_executor(executor):
    '''Decorates a method to be sumbited to the passed in executor'''
    def decorator(target):

        @functools.wraps(target)
        def wrapper(*args, **kwargs):
            result = executor.submit(target, *args, **kwargs)
            result.add_done_callback(executor_done_call_back)
            return result

        return wrapper

    return decorator


def executor_done_call_back(future):
    exception = future.exception()
    if exception:
        raise exception


class App(tk.Tk):
    def __init__(self, *args, **kwargs) -> None:
        super().__init__(*args, **kwargs)
        self.title("Sistema de Monitoreo de Paneles Solares del SESLab")
        self.config(bg="#919F89")

        width_of_window = 600
        height_of_window = 280

        screen_width = self.winfo_screenwidth()
        screen_height = self.winfo_screenheight()

        x_coordinate = (screen_width/2)-(width_of_window/2)
        y_coordinate = (screen_height/2)-(height_of_window/2)

        self.geometry((f'{width_of_window}x{height_of_window}+'
                       f'{x_coordinate:.0f}+{y_coordinate:.0f}'))

        self.form_frame = FormFrame(self)
        self.form_frame.pack()
        self.btn = tk.Button(
            self, bg="#E2BBAC", text="Iniciar ", command=self.on_btn)
        self.btn.pack()

    def btn_enable(self, enable=True):
        self.btn.config(state='normal' if enable else 'disabled')

    def on_btn(self):
        self.btn_enable(False)
        self.update()

    @submit_to_pool_executor(thread_pool_executor)
    def update(self):

        device.open()
        DATA_TO_SEND = "Hola XBee!"
        device.send_data_broadcast(DATA_TO_SEND)

        try:
            device.flush_queues()
            while True:
                xbee_message = device.read_data()
                if xbee_message is not None:
                    data = xbee_message.data.decode()
                    self.form_frame.set_str_variables(data.split(","))
        finally:
            if device is not None and device.is_open():
                device.close()
            self.btn_enable()


class FormFrame(tk.Frame):
    def __init__(self, *args, **kwargs) -> None:
        kwargs['width'] = '1200'
        kwargs['height'] = '600'
        super().__init__(*args, **kwargs)
        self.config(bg="#98A7AC")
        self.str_variables = []

        for row_index in (1, 2, 4, 5, 6, 7, 9):
            str_variable = tk.StringVar()
            entry = tk.Entry(self, textvariable=str_variable)
            entry.grid(row=row_index, column=1, padx=1, pady=5)
            entry.config(fg="black", justify="center", state='readonly')
            self.str_variables.append(str_variable)

        label1 = tk.Label(
            self, text="Sistema de monitoreo de Paneles del SESLab", font=18)
        label1.grid(row=0, column=0, padx=5, pady=5, columnspan=2)

        for row_index, text in (
            (1, 'Fecha de medición : '), (2, 'Hora de medición : '),
            (4, 'Voltage de Panel 1 : '), (5, 'Voltage de Panel 2 : '),
            (6, 'Voltage de Panel 3 : '), (7, 'Promedio : '),
                (9, 'Panel con Menor Voltaje : ')):
            label = tk.Label(self, text="Fecha de medición : ")
            label.grid(row=row_index, column=0, padx=2, pady=5)

    @tk_after
    def set_str_variables(self, results):
        for str_variable, result in zip(self.str_variables, results):
            str_variable.set(result)


if __name__ == '__main__':
    app = App()
    app.mainloop()