Add setup example ili9341_esp32.py

setup_examples/ili9341_esp32.py

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+# ili9341_esp32.py Customise for your hardware config
+
+# Released under the MIT License (MIT). See LICENSE.
+# Copyright (c) 2023 Peter Hinch
+
+# As written, supports:
+# ili9341 240x320 displays on ESP32.
+# This requires either an ESP32 with SPIRAM or the use of frozen bytecode.
+
+
+from machine import Pin, SPI, freq
+import gc
+
+from drivers.ili93xx.ili9341 import ILI9341 as SSD
+# Create and export an SSD instance
+pdc = Pin(27, Pin.OUT, value=0)  # Arbitrary pins borrowed from st7735r_esp32.py
+prst = Pin(26, Pin.OUT, value=1)
+pcs = Pin(25, Pin.OUT, value=1)
+gc.collect()  # Precaution before instantiating framebuf
+spi = SPI(1, 30_000_000, sck=Pin(14), mosi=Pin(13), miso=Pin(12))  # No need to wire MISO.
+freq(160_000_000)
+gc.collect()  # Precaution before instantiating framebuf
+ssd = SSD(spi, cs=pcs, dc=pdc, rst=prst)
+from gui.core.ugui import Display  # Must perform this import after instantiating SSD (see other examples)
+gc.collect()  # Precaution before instantiating framebuf
+
+# Create and export a Display instance
+# Define control buttons
+nxt = Pin(4, Pin.IN, Pin.PULL_UP)  # Move to next control
+sel = Pin(33, Pin.IN, Pin.PULL_UP)  # Operate current control
+prev = Pin(18, Pin.IN, Pin.PULL_UP)  # Move to previous control
+increase = Pin(19, Pin.IN, Pin.PULL_UP)  # Increase control's value
+decrease = Pin(5, Pin.IN, Pin.PULL_UP)  # Decrease control's value
+display = Display(ssd, nxt, sel, prev, increase, decrease)