RBG sign for matrix portal

Author: ladyada

RBG_Matrix/code.py

@@ -0,0 +1,72 @@
+# This example shows how to use text and graphics to create custom signage
+
+import time
+import adafruit_display_text.label
+import board
+import displayio
+import framebufferio
+import rgbmatrix
+import terminalio
+
+# If there was a display before (protomatter, LCD, or E-paper), release it so
+# we can create ours
+displayio.release_displays()
+
+matrix = rgbmatrix.RGBMatrix(
+    width=64, bit_depth=4,
+    rgb_pins=[board.MTX_R1, board.MTX_G1, board.MTX_B1, board.MTX_R2, board.MTX_G2, board.MTX_B2],
+    addr_pins=[board.MTX_ADDRA, board.MTX_ADDRB, board.MTX_ADDRC, board.MTX_ADDRD],
+    clock_pin=board.MTX_CLK, latch_pin=board.MTX_LAT, output_enable_pin=board.MTX_OE)
+
+# Associate the RGB matrix with a Display so that we can use displayio features
+display = framebufferio.FramebufferDisplay(matrix, auto_refresh=False)
+display.rotation = 180
+
+R = adafruit_display_text.label.Label(
+    terminalio.FONT,
+    color=0xff0000,
+    scale=3, x=2, y=13,
+    text="R")
+B = adafruit_display_text.label.Label(
+    terminalio.FONT,
+    color=0x0000ff,
+    scale=3, x=24, y=13,
+    text="B")
+G = adafruit_display_text.label.Label(
+    terminalio.FONT,
+    color=0x00ff00,
+    scale=3, x=46, y=13,
+    text="G")
+
+# Put each line of text into a Group, then show that group.
+g = displayio.Group()
+g.append(R)
+g.append(B)
+g.append(G)
+display.show(g)
+display.auto_refresh = True
+
+bitmap_file = open("/rbg.bmp", "rb")
+# Setup the file as the bitmap data source
+bitmap = displayio.OnDiskBitmap(bitmap_file)
+# Create a TileGrid to hold the bitmap
+tile_grid = displayio.TileGrid(bitmap, pixel_shader=displayio.ColorConverter())
+print(dir(tile_grid))
+
+while True:
+    while g:
+        g.pop()
+
+    g.append(tile_grid)
+    for y in range(bitmap.height+32):
+        tile_grid.y = 32-y
+        time.sleep(0.05)
+
+    g.pop()
+
+    g.append(R)
+    time.sleep(1)
+    g.append(B)
+    time.sleep(1)
+    g.append(G)
+    time.sleep(1)