Merge pull request #2671 from adafruit/tft_featherwing_35

adding circuitpython example for the tft featherwing 3.5 inch v2

Author: BlitzCityDIY

Matrix_Portal_S3_SMS_Scroller/code.py

@@ -9,9 +9,9 @@
 # avoids repeating the same quote twice in a row
 
 import time
-import board
 import random
 from collections import deque
+import board
 from adafruit_matrixportal.matrix import Matrix
 from adafruit_matrixportal.network import Network
 from messageboard import MessageBoard
@@ -76,8 +76,8 @@ def update_data():
 
         # Results are returned in reverse order, so we reverse that and add to end of queue
         messages.reverse()
-        for message in messages:
-            message_queue.append(message)
+        for m in messages:
+            message_queue.append(m)
 
         # Remove any messages that have been grabbed except the latest one if setting enabled
         start_index = 1 if KEEP_LATEST_MESSAGE else 0

Matrix_Portal_S3_SMS_Scroller/lib/messageboard/animations/scroll.py

@@ -171,14 +171,15 @@ def out_to_bottom(self, message, duration=1):
         )
 
     def right_to_left(self, message, duration=1):
-        """Scroll a message in from the right side of the display and then out the left side over a certain period of
-        time. The final position is off-screen to the left.
+        """Scroll a message in from the right side of the display and then out the left side
+        over a certain period of time. The final position is off-screen to the left.
 
         :param message: The message to animate.
         :param float duration: (optional) The period of time to perform the animation
                                over in seconds. (default=1)
         :type message: Message
         """
+        # pylint: disable=unused-variable
         center_x, center_y = self._get_centered_position(message)
         self.scroll_from_to(
             message, duration,

TFT_FeatherWing_V2_CircuitPython_Example/code.py

@@ -0,0 +1,69 @@
+# SPDX-FileCopyrightText: 2023 Liz Clark for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+"""
+This test will initialize the display using displayio and display
+a bitmap image. The image advances when the touch screen is touched.
+
+Pinouts are for the 3.5" TFT FeatherWing V2
+"""
+import os
+import board
+import displayio
+import adafruit_hx8357
+import adafruit_tsc2007
+
+# Release any resources currently in use for the displays
+displayio.release_displays()
+
+# Use Hardware SPI
+spi = board.SPI()
+
+tft_cs = board.D9
+tft_dc = board.D10
+
+display_width = 480
+display_height = 320
+
+display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
+display = adafruit_hx8357.HX8357(display_bus, width=display_width, height=display_height)
+
+i2c = board.STEMMA_I2C()
+
+irq_dio = None
+tsc = adafruit_tsc2007.TSC2007(i2c, irq=irq_dio)
+
+groups = []
+images = []
+for filename in os.listdir('/'):
+    if filename.lower().endswith('.bmp') and not filename.startswith('.'):
+        images.append("/"+filename)
+print(images)
+
+for i in range(len(images)):
+    splash = displayio.Group()
+    bitmap = displayio.OnDiskBitmap(images[i])
+    tile_grid = displayio.TileGrid(bitmap, pixel_shader=bitmap.pixel_shader)
+    splash.append(tile_grid)
+    groups.append(splash)
+
+index = 0
+touch_state = False
+
+display.root_group = groups[index]
+
+while True:
+    if tsc.touched and not touch_state:
+        point = tsc.touch
+        print("Touchpoint: (%d, %d, %d)" % (point["x"], point["y"], point["pressure"]))
+        # left side of the screen
+        if point["y"] < 2000:
+            index = (index - 1) % len(images)
+            display.root_group = groups[index]
+        # right side of the screen
+        else:
+            index = (index + 1) % len(images)
+            display.root_group = groups[index]
+        touch_state = True
+    if not tsc.touched and touch_state:
+        touch_state = False