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prepare example
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‎examples/nonblocking_serialinput_advanced.py‎

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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# SPDX-FileCopyrightText: 2017 Scott Shawcroft, written for Adafruit Industries
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# SPDX-FileCopyrightText: Copyright (c) 2021 Stefan Krüger for s-light
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#
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# SPDX-License-Identifier: Unlicense
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"""Simple Minimal example of CircuitPython_nonblocking_serialinput library usage."""
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import time
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import sys
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import board
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import nonblocking_serialinput as nb_serialin
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##########################################
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# globals
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my_input = nb_serialin.NonBlockingSerialInput()
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class MyProjectMainClass(object):
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"""This is just the Container Class for my Project."""
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def __init__(self, arg):
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super(MyProjectMainClass, self).__init__()
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self.arg = arg
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##########################################
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# menu
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def print_help(self):
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"""Print Help."""
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profile_list = ""
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# for name, profile in self.profiles.items():
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# profile_list += " {}\n".format(profile.title)
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# ^--> random order..
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for name in self.profiles_names:
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current = ""
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if self.profiles[name] is self.profile_selected:
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current = "*"
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profile_list += " {: 1}{}\n".format(current, self.profiles[name].title_short)
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print(
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"you do some things:\n"
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"- 't': toggle print runtime ({print_runtime})\n"
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"- 's': set print runtime intervall ({intervall: > 7.2f})\n"
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"- 'pn' select next profil\n"
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"{profile_list}"
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"- 'calibrate'\n"
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"- 'start' reflow cycle\n"
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"- 'stop' reflow cycle\n"
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"".format(
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profile_list=profile_list,
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heater_target=self.reflowcontroller.heater_target,
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),
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end="",
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)
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self.print_temperature()
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def check_input(self):
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"""Check Input."""
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input_string = input()
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# sys.stdin.read(1)
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if "pn" in input_string:
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self.reflowcontroller.profile_select_next()
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if "pid p" in input_string:
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value = nb_serialin.parse_value(input_string, "pid p")
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if value:
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self.reflowcontroller.pid.P_gain = value
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if "h" in input_string:
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value = nb_serialin.parse_value(input_string, "h")
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if nb_serialin.is_number(value):
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self.reflowcontroller.heater_target = value
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# prepare new input
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self.print_help()
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print(">> ", end="")
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@staticmethod
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def input_parse_pixel_set(input_string):
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"""parse pixel_set."""
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# row = 0
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# col = 0
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# value = 0
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# sep_pos = input_string.find(",")
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# sep_value = input_string.find(":")
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# try:
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# col = int(input_string[1:sep_pos])
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# except ValueError as e:
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# print("Exception parsing 'col': ", e)
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# try:
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# row = int(input_string[sep_pos + 1 : sep_value])
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# except ValueError as e:
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# print("Exception parsing 'row': ", e)
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# try:
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# value = int(input_string[sep_value + 1 :])
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# except ValueError as e:
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# print("Exception parsing 'value': ", e)
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# pixel_index = 0
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pass
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##########################################
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# functions
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def main_update(self):
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"""Do all the things your main code want's to do...."""
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pass
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##########################################
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# main
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def main():
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"""Main."""
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# wait some time untill the computer / terminal is ready
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for index in range(10):
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print(".", end="")
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time.sleep(0.5 / 10)
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print("")
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print(42 * "*")
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print("Python Version: " + sys.version)
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print("board: " + board.board_id)
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print(42 * "*")
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print("run")
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running = True
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while running:
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try:
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my_input.update()
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except KeyboardInterrupt as e:
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print("KeyboardInterrupt - Stop Program.", e)
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running = False
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else:
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main_update()
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##########################################
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if __name__ == "__main__":
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main()
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##########################################

‎examples/nonblocking_serialinput_simpletest.py‎

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# SPDX-License-Identifier: Unlicense
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"""Simple Minimal example of CircuitPython_nonblocking_serialinput library usage."""
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import time
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import sys
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import board
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import nonblocking_serialinput as nb_serialin
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##########################################
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# globals
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my_input = nb_serialin.NonBlockingSerialInput()
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runtime_print = True
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runtime_print_next = time.monotonic()
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runtime_print_intervall = 1.0
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##########################################
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# menu
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def userinput_print_help(self):
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"""Print Help."""
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global runtime_print
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global runtime_print_intervall
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print(
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"you do some things:\n"
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"- 't': toggle print runtime ({runtime_print})\n"
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"- 'time set:???': set print runtime intervall ({runtime_print_intervall: > 7.2f}s)\n"
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"- 'exit' stop program\n"
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"".format(
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runtime_print=runtime_print,
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runtime_print_intervall=runtime_print_intervall,
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),
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end="",
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)
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def userinput_handling(input_string):
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"""Check Input."""
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global runtime_print
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global runtime_print_intervall
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if "t" in input_string:
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runtime_print = not runtime_print
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if "time set" in input_string:
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value = nb_serialin.parse_value(input_string, "time set")
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if nb_serialin.is_number(value):
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runtime_print_intervall = value
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##########################################
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# functions
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def main_update(self):
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"""Do all the things your main code want's to do...."""
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global runtime_print
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global runtime_print_next
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global runtime_print_intervall
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if runtime_print:
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if runtime_print_next < time.monotonic():
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runtime_print_next = time.monotonic() + runtime_print_intervall
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print("{: > 7.2f}s)".format(time.monotonic()))
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##########################################
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# main
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def main():
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"""Main."""
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# wait some time untill the computer / terminal is ready
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for index in range(10):
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print(".", end="")
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time.sleep(0.5 / 10)
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print("")
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print(42 * "*")
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print("Python Version: " + sys.version)
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print("board: " + board.board_id)
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print(42 * "*")
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print("run")
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running = True
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while running:
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try:
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my_input.update()
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except KeyboardInterrupt as e:
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print("KeyboardInterrupt - Stop Program.", e)
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running = False
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else:
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main_update()
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##########################################
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if __name__ == "__main__":
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main()
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##########################################

‎nonblocking_serialinput.py‎

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**Software and Dependencies:**
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* Adafruit CircuitPython firmware for the supported boards:
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https://github.com/adafruit/circuitpython/releases
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* Core Module usb_cdc:
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https://circuitpython.readthedocs.io/en/latest/shared-bindings/usb_cdc/index.html
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* Adafruit CircuitPython firmware `>= 7.0.0 for the supported boards.
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<https://github.com/adafruit/circuitpython/releases>`_
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* Core Module `usb_cdc:
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<https://circuitpython.readthedocs.io/en/latest/shared-bindings/usb_cdc/index.html>`_
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"""
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# imports
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import time
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import board
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import supervisor
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__version__ = "0.0.0-auto.0"
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__repo__ = "https://github.com/s-light/CircuitPython_nonblocking_serialinput.git"
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##########################################
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# NonBlockingSerialInput Class
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class NonBlockingSerialInput(object):
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"""docstring for NonBlockingSerialInput."""
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def __init__(self, arg):
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super(NonBlockingSerialInput, self).__init__()
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self.arg = arg
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def memo(self):
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if supervisor.runtime.serial_connected:
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self.print_help()
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# prepare new input
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self.print_help()
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print(">> ", end="")
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##########################################
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# helper
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def parse_value(self, input_string, pre_text):
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value = None
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# strip pre_text
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# ignore error 'whitespace before :'
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# pylama:ignore=E203
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input_string = input_string[len(pre_text) + 1 :]
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if "None" in input_string:
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value = None
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elif "False" in input_string:
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value = False
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elif "True" in input_string:
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value = True
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else:
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try:
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value = float(input_string)
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except ValueError as e:
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print(
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"Exception parsing '{pre_text}': {error}".format(
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pre_text=pre_text,
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error=e,
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)
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)
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return value
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def is_number(s):
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"""
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Return true if string is a number.
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based on
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https://stackoverflow.com/questions/354038/how-do-i-check-if-a-string-is-a-number-float
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"""
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try:
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float(s)
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except TypeError:
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# return NaN
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return False
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else:
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return True

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