import PySimpleGUI as sg

import serial

import serial.tools.list_ports

import time

import pathlib

import os

"""

BoardControlGUI

PySimpleGUI program to interface with a MicroPython based microcontroller.

Features

* Upload Micropython code to microcontrollers sucb a Raspberryt Pi or ESP32 boards

* Send commands to your micropython program

* Display messages/information from your micropython program

Name your uPython file so that your filename begins with "upython_" so that

it can be listed in the drop-down of available programs to load.

"""

# CONSTANTS

# location of micropython files

PROGRAM_FOLDER = r'.'

# Prehaps an Anti-pattern GLOBAL VARIABLES

class G: # global variables

ser: serial.Serial = None

comport = None # the comport in use

# 888 888 888 888 888 8888888b. d8b

# 888 888 888 888 888 888 Y88bY8P

# 888 888 888 888 888 888 888

# 888 88888888b. 888 .d88b. 8888b. .d88888 888888 .d88b. 888 d88P888

# 888 888888 "88b888d88""88b "88bd88" 888 888 d88""88b 8888888P" 888

# 888 888888 888888888 888.d888888888 888 888 888 888 888 888

# Y88b. .d88P888 d88P888Y88..88P888 888Y88b 888 Y88b. Y88..88P 888 888

# "Y88888P" 88888P" 888 "Y88P" "Y888888 "Y88888 "Y888 "Y88P" 888 888

# 888

# 888

# 888

def wait_and_read(ser, delay=0.2):

time.sleep(delay)

data = ser.read_all()

def enter_clean_repl(ser):

ser.write(b"\x03") # Ctrl-C

ser.write(b"\x03") # twice just in case

ser.write(b"\x04") # Ctrl-D soft reboot

wait_and_read(ser, 0.5)

def send_file(ser, local_path: str):

p = pathlib.Path(local_path)

with p.open("r", encoding="utf-8") as f:

lines = f.readlines()

#enter paste mode

ser.write(b"\x05") # Ctrl-E

wait_and_read(ser, 0.1)

for line in lines:

line += '\n'

ser.write(line.encode("utf-8"))

time.sleep(0.01)

wait_and_read(ser, 0.5)

sg.cprint('Upload complete', text_color='red')

# finish block and execute

ser.write(b"\x04") # Ctrl-D

def upload_upython_file(filename):

sg.cprint(f'Uploading <{filename}>', text_color='red')

enter_clean_repl(G.ser)

send_file(G.ser, filename)

def setup_com_port() -> serial.Serial:

comports = serial.tools.list_ports.comports()

for port in comports:

# print(f'{port.device} {port.product} {port.description}')

# desc = port.description.lower() if port.description is not None else ''

# prod = port.product.lower() if port.product is not None else ''

if True:

try:

G.ser = serial.Serial(f"{port.device}", 115200, timeout=1)

G.comport = port.device

except Exception as e:

print(f'{port.device} failed: {e}')

else:

return G.ser

return None

def send_line(line:str):

# Communicate with the upython program once loaded

if len(line) != 1: # If not a single char, add on a CRLF

line += '\r\n'

G.ser.write(bytes(line, encoding='-utf-8'))

# e88~-_ 888

# d888 \ 888-~88e e88~-_ e88~-_ d88~\ e88~~8e

# 8888 888 888 d888 i d888 i C888 d888 88b

# 8888 888 888 8888 | 8888 | Y88b 8888__888

# Y888 / 888 888 Y888 ' Y888 ' 888D Y888 ,

# "88_-~ 888 888 "88_-~ "88_-~ \_88P "88___/

#

# 888~~ ,e, 888 e88~~\ 888 | 888

# 888___ " 888 e88~~8e d888 888 | 888

# 888 888 888 d888 88b 8888 __ 888 | 888

# 888 888 888 8888__888 8888 | 888 | 888

# 888 888 888 Y888 , Y888 | Y88 | 888

# 888 888 888 "88___/ "88__/ "8__/ 888

def choose_upload_file(use_last:bool=False):

python_files = [file for file in os.listdir(PROGRAM_FOLDER) if file.startswith('upython_') and file.endswith('.py')]

if use_last:

return sg.user_settings_get_entry('-PYFILE-')

layout = [[sg.T('Choose a file to upload')],

[sg.Combo(python_files, k='-PYFILE-', bind_return_key=True, readonly=True, setting='Choose a file')],

[sg.Push(), sg.OK(), sg.Cancel()]]

window = sg.Window('Choose upload file', layout, )

event, values = window.read(close=True)

if event in ('OK', '-PYFILE-'):

upload_file = values['-PYFILE-']

window.settings_save(values)

else:

upload_file = None

return upload_file

# .d8888b. d8b 888

# d88P Y88b Y8P 888

# Y88b. 888

# "Y888b. .d88b. 888d888888 8888b. 888

# "Y88b.d8P Y8b888P" 888 "88b888

# "88888888888888 888.d888888888

# Y88b d88PY8b. 888 888888 888888

# "Y8888P" "Y8888 888 888"Y888888888

#

#

#

# 8888888b. 888 88888888888888 888

# 888 Y88b 888 888 888 888

# 888 888 888 888 888 888

# 888 d88P .d88b. 8888b. .d88888 888 88888b. 888d888 .d88b. 8888b. .d88888

# 8888888P" d8P Y8b "88bd88" 888 888 888 "88b888P" d8P Y8b "88bd88" 888

# 888 T88b 88888888.d888888888 888 888 888 888888 88888888.d888888888 888

# 888 T88b Y8b. 888 888Y88b 888 888 888 888888 Y8b. 888 888Y88b 888

# 888 T88b "Y8888 "Y888888 "Y88888 888 888 888888 "Y8888 "Y888888 "Y88888

def read_serial_thread(window:sg.Window):

# sg.cprint('serial thread started')

sg.cprint('Ready to upload to board')

while True:

try:

line = G.ser.readline().rstrip()

except Exception as e:

sg.cprint('ERROR FROM SERIAL PORT... EXITING', text_color='Red')

window.write_event_value('Error', e) # If get a serial port error, fake Exit

return

if line:

window.write_event_value('-THREAD-', line.decode('utf-8'))

# d8b

# Y8P

#

# 88888b.d88b. 8888b. 88888888b.

# 888 "888 "88b "88b888888 "88b

# 888 888 888.d888888888888 888

# 888 888 888888 888888888 888

# 888 888 888"Y888888888888 888

def main():

G.ser = setup_com_port()

if G.ser is None:

sg.popup_auto_close("cannot connect to a com port", auto_close_duration=1)

exit()

time.sleep(2)

layout = [[sg.Text(f'{G.ser.port}'), sg.B('Upload to Board', k='-UPLOAD-'), sg.B('Reupload Last', k='-REUPLOAD-'), sg.T(sg.user_settings_get_entry('-PYFILE-'), k='-LAST FILEMAME-'),

sg.Push(), sg.T(f'COM {G.comport}')],

[sg.Multiline(s=(80, 30), k='-ML-', write_only=True, auto_refresh=True, autoscroll=True, wrap_lines=True, reroute_cprint=True, font='courier 14', expand_x=True, expand_y=True)],

[sg.In(s=(80,1), k='-IN-', focus=True, do_not_clear=True), sg.Button('Send',bind_return_key=True )],

[sg.B('LED'), sg.Push(),sg.T('', k='-PAUSED-'), sg.B('Pause'), sg.B('Clear'),sg.B('Stop uPython'),sg.B('Control C'), sg.B('Exit')]]

window = sg.Window('Data Monitor', layout, finalize=True, font='courier 14', right_click_menu=sg.MENU_RIGHT_CLICK_EDITME_VER_EXIT, resizable=True)

window.start_thread(lambda : read_serial_thread(window))

paused = False

while True:

event, values = window.read()

if event in (sg.WIN_CLOSED, 'Exit'): # stop upython prog when exiting

send_line( 'STOP')

exit()

elif event == 'Error':

sg.popup('Fatal error encountered', values['Error'], auto_close=True, auto_close_duration=2)

exit()

command = values['-IN-']

if event == '-THREAD-': # line of text received from serial port (over USB)

line:str = values['-THREAD-']

sg.cprint(line)

elif event == 'Send':

try:

send_line(values['-IN-'])

except:

sg.cprint('ERROR trying to send command', text_color='red')

window['-IN-'].update('')

elif event == 'Control C':

send_line(chr(3))

elif event == 'Clear':

window['-ML-'].update('')

elif event in ('-UPLOAD-', '-REUPLOAD-'):

filename = choose_upload_file(event == '-REUPLOAD-')

if filename:

upload_upython_file(os.path.join(PROGRAM_FOLDER, filename))

else:

sg.cprint('Upload cancelled')

elif event == 'Stop uPython':

send_line( 'STOP')

elif event == 'Pause':

paused = not paused

if paused:

window['-PAUSED-'].update('PAUSED')

else:

window['-PAUSED-'].update('')

elif event == 'LED':

send_line('LED')

elif event == 'Version':

sg.popup(sg.get_versions(), line_width=70)

if __name__ == "__main__":

main()