Merge pull request adafruit#1231 from jedgarpark/quote-matrix

first commit

Author: ladyada

Matrix_Quote_Board/matrix_quote_board.py

@@ -0,0 +1,102 @@
+# Quote board matrix display
+# uses AdafruitIO to serve up a quote text feed and color feed
+# random quotes are displayed, updates periodically to look for new quotes
+# avoids repeating the same quote twice in a row
+
+import time
+import random
+import board
+import terminalio
+from adafruit_matrixportal.matrixportal import MatrixPortal
+
+# --- Display setup ---
+matrixportal = MatrixPortal(status_neopixel=board.NEOPIXEL, debug=True)
+
+# Create a new label with the color and text selected
+matrixportal.add_text(
+    text_font=terminalio.FONT,
+    text_position=(0, (matrixportal.graphics.display.height // 2) - 1),
+    scrolling=True,
+)
+
+# Static 'Connecting' Text
+matrixportal.add_text(
+    text_font=terminalio.FONT,
+    text_position=(2, (matrixportal.graphics.display.height // 2) - 1),
+)
+
+QUOTES_FEED = "sign-quotes.signtext"
+COLORS_FEED = "sign-quotes.signcolor"
+SCROLL_DELAY = 0.02
+UPDATE_DELAY = 600
+
+quotes = []
+colors = []
+last_color = None
+last_quote = None
+
+
+def update_data():
+    print("Updating data from Adafruit IO")
+    matrixportal.set_text("Connecting", 1)
+
+    try:
+        quotes_data = matrixportal.get_io_data(QUOTES_FEED)
+        quotes.clear()
+        for json_data in quotes_data:
+            quotes.append(matrixportal.network.json_traverse(json_data, ["value"]))
+        print(quotes)
+    # pylint: disable=broad-except
+    except Exception as error:
+        print(error)
+
+    try:
+        color_data = matrixportal.get_io_data(COLORS_FEED)
+        colors.clear()
+        for json_data in color_data:
+            colors.append(matrixportal.network.json_traverse(json_data, ["value"]))
+        print(colors)
+    # pylint: disable=broad-except
+    except Exception as error:
+        print(error)
+
+    if not quotes or not colors:
+        raise "Please add at least one quote and color to your feeds"
+    matrixportal.set_text(" ", 1)
+
+
+update_data()
+last_update = time.monotonic()
+matrixportal.set_text(" ", 1)
+quote_index = None
+color_index = None
+
+while True:
+    # Choose a random quote from quotes
+    if len(quotes) > 1 and last_quote is not None:
+        while quote_index == last_quote:
+            quote_index = random.randrange(0, len(quotes))
+    else:
+        quote_index = random.randrange(0, len(quotes))
+    last_quote = quote_index
+
+    # Choose a random color from colors
+    if len(colors) > 1 and last_color is not None:
+        while color_index == last_color:
+            color_index = random.randrange(0, len(colors))
+    else:
+        color_index = random.randrange(0, len(colors))
+    last_color = color_index
+
+    # Set the quote text
+    matrixportal.set_text(quotes[quote_index])
+
+    # Set the text color
+    matrixportal.set_text_color(colors[color_index])
+
+    # Scroll it
+    matrixportal.scroll_text(SCROLL_DELAY)
+
+    if time.monotonic() > last_update + UPDATE_DELAY:
+        update_data()
+        last_update = time.monotonic()