Add setup example for Waveshare Pico Res Touch 2.8

setup_examples/ws_pico_res_touch.py

@@ -0,0 +1,26 @@
+# ws_pico_res_touch.py
+
+# Released under the MIT License (MIT). See LICENSE.
+# Copyright (c) 2022 Peter Hinch
+# With help from Tim Wermer.
+
+import gc
+from machine import Pin, SPI
+from drivers.st7789.st7789_4bit import *
+SSD = ST7789
+
+pdc = Pin(8, Pin.OUT, value=0)
+pcs = Pin(9, Pin.OUT, value=1)
+prst = Pin(15, Pin.OUT, value=1)
+pbl = Pin(13, Pin.OUT, value=1)
+
+gc.collect()  # Precaution before instantiating framebuf
+# Runs at 60MHz here, supported by ST7789 datasheet.
+# If problems arise, try reducing to 30MHz.
+spi = SPI(1, 60_000_000, sck=Pin(10), mosi=Pin(11), miso=Pin(12))
+
+# Define the display
+# For portrait mode:
+# ssd = SSD(spi, height=320, width=240, dc=pdc, cs=pcs, rst=prst)
+# For landscape mode:
+ssd = SSD(spi, height=240, width=320, disp_mode=PORTRAIT, dc=pdc, cs=pcs, rst=prst)