How to use gpiozero - 10 common examples

def note(self):
        """
        Return the (nearest) note to the tone's frequency. This will be a
        string in the form accepted by :meth:`from_note`. If the frequency is
        outside the range represented by this format ("A0" is approximately
        27.5Hz, and "G9" is approximately 12.5Khz) a :exc:`ValueError`
        exception will be raised.
        """
        offset = self.midi - 60  # self.midi - A4_midi + Tone.tones.index('A')
        index = offset % 12      # offset % len(Tone.tones)
        octave = 4 + offset // 12
        if 0 <= octave <= 9:
            return (
                Tone.tones[index] +
                ('#' if Tone.tones[index] == Tone.tones[index - 1] else '') +
                str(octave)
            )
        raise ValueError('%f is outside the notation range' % self.frequency)

"""
        self.num_led = num_led  # The number of LEDs in the Strip
        order = order.lower()
        self.rgb = RGB_MAP.get(order, RGB_MAP['rgb'])
        # Limit the brightness to the maximum if it's set higher
        if global_brightness > self.MAX_BRIGHTNESS:
            self.global_brightness = self.MAX_BRIGHTNESS
        else:
            self.global_brightness = global_brightness

        self.leds = [self.LED_START,0,0,0] * self.num_led #Pixel buffer
        self.start_frame = [0] * 4 #32 bits of zeroes
        self.end_frame = [0] * ((self.num_led + 15) // 8) #num_led/2 bits, rounded up to the next byte

        factory = PiGPIOFactory(host='localhost')
        self.spi=factory.spi(mosi_pin=mosi, clock_pin=sclk)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_tone_init(A4):
    with warnings.catch_warnings(record=True) as w:
        warnings.resetwarnings()
        assert Tone(440) == A4
        assert Tone("A4") == A4
        assert len(w) == 0
        assert Tone(69) == A4
        assert len(w) == 1
        assert isinstance(w[0].message, AmbiguousTone)
    assert Tone(frequency=440) == A4
    assert Tone(note="A4") == A4
    assert Tone(midi=69) == A4
    with pytest.raises(TypeError):
        Tone()
    with pytest.raises(TypeError):
        Tone(foo=1)
    with pytest.raises(TypeError):
        Tone(frequency=440, midi=69)

def test_zip_values(mock_factory):
    with Button(2) as btn1, Button(3) as btn2:
        zv = zip_values(btn1, btn2)
        assert next(zv) == (False, False)
        btn1.pin.drive_low()
        assert next(zv) == (True, False)
        btn2.pin.drive_low()
        assert next(zv) == (True, True)
        btn1.pin.drive_high()
        assert next(zv) == (False, True)
        btn2.pin.drive_high()
        assert next(zv) == (False, False)
    with Button(2) as btn1, Button(3) as btn2, Button(4) as btn3, Button(5) as btn4:
        zv = zip_values(btn1, btn2, btn3, btn4)
        assert next(zv) == (False, False, False, False)
        btn1.pin.drive_low()
        btn3.pin.drive_low()
        assert next(zv) == (True, False, True, False)
        btn2.pin.drive_low()
        btn4.pin.drive_low()
        assert next(zv) == (True, True, True, True)
        btn1.pin.drive_high()
        btn2.pin.drive_high()
        btn3.pin.drive_high()
        btn4.pin.drive_high()
        sleep(epsilon)
        assert next(zv) == (False, False, False, False)

import subprocess
from PIL import Image
from PIL import ImageOps
import ImageDraw
import ImageFont
import ipgetter
import socket
import subprocess
import shlex
from EPD import EPD

led = RGBLED(red=6, green=12, blue=5)
button1 = Button(16)
button2 = Button(19)
button3 = Button(20)
button4 = Button(26)


if os.name != "nt":
    import fcntl
    import struct

    def get_interface_ip(ifname):
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        return socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s',
                                ifname[:15]))[20:24])

def get_lan_ip():
    ip = socket.gethostbyname(socket.gethostname())
    if ip.startswith("127.") and os.name != "nt":
        interfaces = [
            "eth0",