kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
55 wiersze
1.8 KiB
Python
55 wiersze
1.8 KiB
Python
# ili9341_pico.py Customise for your hardware config
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2021 Peter Hinch
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# As written, supports:
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# ili9341 240x320 displays on Pi Pico
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# Edit the driver import for other displays.
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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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# WIRING
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# Pico Display
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# GPIO Pin
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# 3v3 36 Vin
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# IO6 9 CLK Hardware SPI0
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# IO7 10 DATA (AKA SI MOSI)
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# IO8 11 DC
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# IO9 12 Rst
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# Gnd 13 Gnd
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# IO10 14 CS
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# Pushbuttons are wired between the pin and Gnd
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# Pico pin Meaning
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# 16 Operate current control
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# 17 Decrease value of current control
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# 18 Select previous control
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# 19 Select next control
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# 20 Increase value of current control
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from machine import Pin, SPI, freq
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import gc
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from drivers.ili93xx.ili9341 import ILI9341 as SSD
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freq(250_000_000) # RP2 overclock
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# Create and export an SSD instance
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pdc = Pin(8, Pin.OUT, value=0) # Arbitrary pins
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prst = Pin(9, Pin.OUT, value=1)
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pcs = Pin(10, Pin.OUT, value=1)
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spi = SPI(0, sck=Pin(6), mosi=Pin(7), miso=Pin(4), baudrate=30_000_000)
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gc.collect() # Precaution before instantiating framebuf
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ssd = SSD(spi, pcs, pdc, prst, usd=True)
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from gui.core.ugui import Display
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# Create and export a Display instance
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# Define control buttons
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nxt = Pin(19, Pin.IN, Pin.PULL_UP) # Move to next control
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sel = Pin(16, Pin.IN, Pin.PULL_UP) # Operate current control
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prev = Pin(18, Pin.IN, Pin.PULL_UP) # Move to previous control
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increase = Pin(20, Pin.IN, Pin.PULL_UP) # Increase control's value
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decrease = Pin(17, Pin.IN, Pin.PULL_UP) # Decrease control's value
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display = Display(ssd, nxt, sel, prev, increase, decrease, 4) # Encoder
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