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import board
import analogio
import stage
import displayio
import busio
import time
import keypad
import audioio
import audiocore
import supervisor
import digitalio
K_X = 0x01
K_O = 0x02
K_START = 0x04
K_SELECT = 0x08
K_DOWN = 0x10
K_LEFT = 0x20
K_RIGHT = 0x40
K_UP = 0x80
# re-initialize the display for correct rotation and RGB mode
_TFT_INIT = (
b"\x01\x80\x96" # SWRESET and Delay 150ms
b"\x11\x80\xff" # SLPOUT and Delay
b"\xb1\x03\x01\x2C\x2D" # _FRMCTR1
b"\xb2\x03\x01\x2C\x2D" # _FRMCTR2
b"\xb3\x06\x01\x2C\x2D\x01\x2C\x2D" # _FRMCTR3
b"\xb4\x01\x07" # _INVCTR line inversion
b"\xc0\x03\xa2\x02\x84" # _PWCTR1 GVDD = 4.7V, 1.0uA
b"\xc1\x01\xc5" # _PWCTR2 VGH=14.7V, VGL=-7.35V
b"\xc2\x02\x0a\x00" # _PWCTR3 Opamp current small, Boost frequency
b"\xc3\x02\x8a\x2a"
b"\xc4\x02\x8a\xee"
b"\xc5\x01\x0e" # _VMCTR1 VCOMH = 4V, VOML = -1.1V
b"\x20\x00" # _INVOFF
b"\x36\x01\xa0" # _MADCTL
# 1 clk cycle nonoverlap, 2 cycle gate rise, 3 sycle osc equalie,
# fix on VTL
b"\x3a\x01\x05" # COLMOD - 16bit color
b"\xe0\x10\x02\x1c\x07\x12\x37\x32\x29\x2d\x29\x25\x2B\x39\x00\x01\x03\x10" # _GMCTRP1 Gamma
b"\xe1\x10\x03\x1d\x07\x06\x2E\x2C\x29\x2D\x2E\x2E\x37\x3F\x00\x00\x02\x10" # _GMCTRN1
b"\x13\x80\x0a" # _NORON
b"\x29\x80\x64" # _DISPON
)
class _Buttons:
def __init__(self):
self.keys = keypad.ShiftRegisterKeys(clock=board.BUTTON_CLOCK,
data=board.BUTTON_OUT, latch=board.BUTTON_LATCH, key_count=4,
interval=0.05, value_when_pressed=True)
self.last_state = 0
self.event = keypad.Event(0, False)
self.last_z_press = None
self.joy_x = analogio.AnalogIn(board.JOYSTICK_X)
self.joy_y = analogio.AnalogIn(board.JOYSTICK_Y)
def get_pressed(self):
buttons = self.last_state
events = self.keys.events
while events:
if events.get_into(self.event):
bit = 1 << self.event.key_number
if self.event.pressed:
buttons |= bit
self.last_state |= bit
else:
self.last_state &= ~bit
if buttons & K_START:
now = time.monotonic()
if self.last_z_press:
if now - self.last_z_press > 2:
supervisor.set_next_code_file(None)
supervisor.reload()
else:
self.last_z_press = now
else:
self.last_z_press = None
dead = 15000
x = self.joy_x.value - 32767
if x < -dead:
buttons |= K_LEFT
elif x > dead:
buttons |= K_RIGHT
y = self.joy_y.value - 32767
if y < -dead:
buttons |= K_UP
elif y > dead:
buttons |= K_DOWN
return buttons
class _Audio:
last_audio = None
def __init__(self, speaker_pin, mute_pin=None):
self.muted = True
self.buffer = bytearray(128)
if mute_pin:
self.mute_pin = digitalio.DigitalInOut(mute_pin)
self.mute_pin.switch_to_output(value=not self.muted)
else:
self.mute_pin = None
self.audio = audioio.AudioOut(speaker_pin)
def play(self, audio_file, loop=False):
if self.muted:
return
self.stop()
wave = audiocore.WaveFile(audio_file, self.buffer)
self.audio.play(wave, loop=loop)
def stop(self):
self.audio.stop()
def mute(self, value=True):
self.muted = value
if self.mute_pin:
self.mute_pin.value = not value
displayio.release_displays()
_tft_spi = busio.SPI(clock=board.TFT_SCK, MOSI=board.TFT_MOSI)
_fourwire = displayio.FourWire(_tft_spi, command=board.TFT_DC,
chip_select=board.TFT_CS, reset=board.TFT_RST)
display = displayio.Display(_fourwire, _TFT_INIT, width=160, height=128,
rotation=0, auto_refresh=False)
# Work around broken backlight in CP 7.0
_backlight = digitalio.DigitalInOut(board.TFT_LITE)
_backlight.switch_to_output(value=1)
del _TFT_INIT
buttons = _Buttons()
audio = _Audio(board.SPEAKER, board.SPEAKER_ENABLE)
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