kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
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# color_setup.py Customise for your hardware config
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2020 Peter Hinch
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# As written, supports:
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# ili9341 240x320 displays on ESP32 Wrover KIT 4.1
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# See https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-wrover-kit.html
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# Demo of initialisation procedure designed to minimise risk of memory fail
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# when instantiating the frame buffer. The aim is to do this as early as
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# possible before importing other modules.
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from machine import Pin, SPI
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import gc
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# ili9341 specific driver
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from drivers.ili93xx.ili9341 import ILI9341 as SSD
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pdc = Pin(21, Pin.OUT, value=0)
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prst = Pin(18, Pin.OUT, value=1)
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pcs = Pin(22, Pin.OUT, value=1)
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# Kept as ssd to maintain compatability
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gc.collect() # Precaution before instantiating framebuf
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# See DRIVERS.md re overclocking the SPI bus
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spi = SPI(2, sck=Pin(19), mosi=Pin(23), miso=Pin(25), baudrate=30_000_000)
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ssd = SSD(spi, dc=pdc, cs=pcs, rst=prst)
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# turn on the backlight
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bl = Pin(5, Pin.OUT)
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bl.value(0)
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