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support s2m scratch for microbit.
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‎09.scratch/s2m.py‎

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"""
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Copyright (c) 2017-2018 Alan Yorinks All rights reserved.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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Version 3 as published by the Free Software Foundation; either
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or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
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along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Last modified 5 April 2018
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"""
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from microbit import *
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# This is a script used to control a micro:bit from s2m
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# This loop continuously polls the sensors and then prints a reply string.
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# It also continuously calls readline to check for commands.
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# A command is specified as comma delimited string with the command
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# as the first element followed by its parameters.
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# Commands:
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# d - display the specified image
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# s - scroll the specified text
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# p - control a pixel for the specified row, column and intensity
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# c - clear the display (no parameters)
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# a - analog write for the specified pin and value (range 0-1023)
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# t - digital write for the specified pin and value (0 or 1)
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# v - get version string
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import sys
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uart = sys.stdin
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def logging(func):
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import sys
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def _deco():
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try:
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func()
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except Exception as e:
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with open("run.log", "a") as f:
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sys.print_exception(e, f)
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return _deco
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# a list of current digital pin modes
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@logging
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def loop():
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digital_outputs = [False, False, False]
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while True:
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data = uart.readline()
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sleep(8)
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if data:
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cmd = str(data, 'utf-8').rstrip()
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if not len(cmd):
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continue
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# noinspection PyUnresolvedReferences
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cmd_list = cmd.split(",")
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# get command id
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try:
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cmd_id = cmd_list[0]
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except IndexError:
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cmd_id = 'z'
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continue
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# display image command
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if cmd_id == 'd':
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image_dict = {"HAPPY": Image.HAPPY,
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"SAD": Image.SAD,
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"ANGRY": Image.ANGRY,
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"SMILE": Image.SMILE,
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"CONFUSED": Image.CONFUSED,
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"ASLEEP": Image.ASLEEP,
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"SURPRISED": Image.SURPRISED,
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"SILLY": Image.SILLY,
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"FABULOUS": Image.FABULOUS,
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"MEH": Image.MEH,
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"YES": Image.YES,
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"NO": Image.NO,
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"RABBIT": Image.RABBIT,
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"COW": Image.COW,
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"ROLLERSKATE": Image.ROLLERSKATE,
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"HOUSE": Image.HOUSE,
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"SNAKE": Image.SNAKE,
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"HEART": Image.HEART,
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"DIAMOND": Image.DIAMOND,
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"DIAMOND_SMALL": Image.DIAMOND_SMALL,
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"SQUARE": Image.SQUARE,
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"SQUARE_SMALL": Image.SQUARE_SMALL,
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"TRIANGLE": Image.TRIANGLE,
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"TARGET": Image.TARGET,
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"STICKFIGURE": Image.STICKFIGURE,
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"ARROW_N": Image.ARROW_N,
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"ARROW_NE": Image.ARROW_NE,
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"ARROW_E": Image.ARROW_E,
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"ARROW_SE": Image.ARROW_SE,
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"ARROW_S": Image.ARROW_S,
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"ARROW_SW": Image.ARROW_SW,
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"ARROW_W": Image.ARROW_W,
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"ARROW_NW": Image.ARROW_NW}
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# get image key
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try:
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image_key = cmd_list[1]
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except IndexError:
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continue
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if image_key in image_dict:
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display.show(image_dict.get(image_key), wait=False)
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# scroll text command
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elif cmd_id == 's':
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display.scroll(str(cmd_list[1]), wait=False)
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# write pixel command
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elif cmd_id == 'p':
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# get row, column and intensity value
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# make sure values are within valid range
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# print(cmd)
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try:
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x = int(cmd_list[1])
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except ValueError:
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continue
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except IndexError:
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continue
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if x < 0:
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x = 0
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if x > 4:
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x = 4
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try:
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y = int(cmd_list[2])
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except ValueError:
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continue
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except IndexError:
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continue
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if y < 0:
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y = 0
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if y > 4:
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y = 4
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try:
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value = int(cmd_list[3])
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except ValueError:
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continue
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except IndexError:
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continue
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if value < 0:
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value = 0
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if value > 9:
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value = 9
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display.set_pixel(x, y, value)
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# clear display command
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elif cmd_id == 'c':
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display.clear()
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# analog write command
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# if values are out of range, command is ignored
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elif cmd_id == 'a':
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# check pin and value ranges
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try:
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pin = int(cmd_list[1])
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value = int(cmd_list[2])
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digital_outputs[pin] = True
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except IndexError:
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continue
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except ValueError:
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continue
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if 0 <= pin <= 2:
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if not 0 <= value <= 1023:
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value = 256
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if pin == 0:
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pin0.write_analog(value)
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elif pin == 1:
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pin1.write_analog(value)
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elif pin == 2:
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pin2.write_analog(value)
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# digital write command
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elif cmd_id == 't':
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# check pin and value ranges
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# if values are out of range, command is ignored
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try:
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pin = int(cmd_list[1])
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value = int(cmd_list[2])
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digital_outputs[pin] = True
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except IndexError:
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continue
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except ValueError:
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continue
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if 0 <= pin <= 2:
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if 0 <= value <= 1:
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if pin == 0:
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pin0.write_digital(value)
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elif pin == 1:
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pin1.write_digital(value)
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elif pin == 2:
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pin2.write_digital(value)
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else:
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pass
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elif cmd == 'g':
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# This string will contain the sensor values and will
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# be "printed" to the serial port.
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# Fields are comma delimited
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sensor_string = ""
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# accelerometer
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sensor_string += str(int(accelerometer.get_x())) + ','
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sensor_string += str(int(accelerometer.get_y())) + ','
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sensor_string += str(int(accelerometer.get_z())) + ','
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# buttons
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sensor_string += str(button_a.is_pressed()) + ','
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sensor_string += str(button_b.is_pressed()) + ','
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# get digital input pin values
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if not digital_outputs[0]:
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sensor_string += str(pin0.read_digital()) + ','
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else:
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sensor_string += '0' + ','
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#
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if not digital_outputs[1]:
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sensor_string += str(pin1.read_digital()) + ','
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else:
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sensor_string += '0' + ','
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#
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if not digital_outputs[2]:
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sensor_string += str(pin2.read_digital()) + ','
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else:
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sensor_string += '0' + ','
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# get analog input pin values
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if not digital_outputs[0]:
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sensor_string += '0' + ','
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else:
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sensor_string += '0' + ','
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if not digital_outputs[1]:
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sensor_string += str(pin1.read_analog()) + ','
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else:
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sensor_string += '0' + ','
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if not digital_outputs[2]:
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sensor_string += str(pin2.read_analog())
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else:
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sensor_string += '0' + ','
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print(sensor_string)
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sleep(10)
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elif cmd == 'v':
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print('s2mb.py Version 1.10 14 April 2018')
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else:
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continue
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sleep(8)
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while True:
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loop()

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