kabel_zum_spielen

# Liest Werte des Beschleunigungssensors und schickt diese über die
# serielle Schnittstelle
# Copyright 2023, 2024 Roland Richter                [Mu: BBC micro:bit]

import microbit

# Wandle einen Gyro-Wert (-1000 bis 1000) in eine Zeile/Spalte (0 bis 4) um
def compute_position(value):
    if value <= -1000:
        value = -999
    if value >= 1000:
        value = 999

    scaled = (value + 1000) // 400
    return scaled


# Zeichne eine senkrechte Linie in Spalte c (zwischen 0 und 4)
def draw_vertical_line(c):
    for row in range(5):
        microbit.display.set_pixel(c, row, 9)


# Zeichne eine waagrechte Linie in Zeile r (zwischen 0 und 4)
def draw_horizontal_line(r):
    for col in range(5):
        microbit.display.set_pixel(col, r, 9)


# Taste A gedrückt, geneigt nach links vorne: "Ab<^"
# keine Taste gedrückt, geneigt nach rechts hinten: "ab>v"
# Tasten A und B gedrückt, annähernde waagrecht: "AB|-"
def create_sensor_string():
    result = ""

    # Status der Tasten A und B
    result += ('A' if microbit.button_a.is_pressed() else 'a')
    result += ('B' if microbit.button_b.is_pressed() else 'b')

    # x- und y-Wert des Beschleunigungssensors
    x_val = microbit.accelerometer.get_x()
    y_val = microbit.accelerometer.get_y()
    result += ('<' if x_val < -200 else ('>' if x_val > 200 else '|'))
    result += ('^' if y_val < -200 else ('v' if y_val > 200 else '-'))

    # PROBIERE, auch die Daten des Kompass in den Text einzufügen

    return result

# Öffne die serielle Schnittstelle
microbit.uart.init(115200)

while True:
    x_val = microbit.accelerometer.get_x()
    y_val = microbit.accelerometer.get_y()

    col = compute_position(x_val)
    row = compute_position(y_val)

    microbit.display.clear()
    draw_vertical_line(col)
    draw_horizontal_line(row)

    # Sende Daten an den Plotter:
    # print((x_val, y_val))

    res = microbit.uart.write(create_sensor_string())
    if res is None:
        microbit.display.show(microbit.Image.SAD)
        microbit.sleep(1000)

    microbit.sleep(10)


# ----------------------------------------------------------------------
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.