Alphanumeric 14x4 scrolling text example

Author: mikeysklar

Matrix_7-Segment_LED_Backpack_Raspberry_Pi/alphanum4_test.py

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+import time
+import board
+import busio
+from adafruit_ht16k33 import segments
+
+# Create the I2C interface.
+i2c = busio.I2C(board.SCL, board.SDA)
+
+# Create the LED segment class.
+# This creates a 14 segment 4 character display:
+display = segments.Seg14x4(i2c)
+
+# Clear the display.
+display.fill(0)
+
+# set brightness, range 1-15, 15 max brightness
+display.brightness = 15
+
+# show phrase on alphanumeric display
+message = "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG"
+count = 0
+
+# print one character at time with short sleep
+# creates smooth scrolling effect
+while count < len(message):
+    display.print(message[count])
+    count += 1
+    time.sleep(0.3)
+
+# Can just print a number
+display.print(42)
+time.sleep(1)
+
+# Set the first character to '1':
+display[0] = '1'
+# Set the second character to '2':
+display[1] = '2'
+# Set the third character to 'A':
+display[2] = 'A'
+# Set the forth character to 'B':
+display[3] = 'B'
+time.sleep(1)
+
+numbers = [0.0, 1.0, -1.0, 0.55, -0.55, 10.23, -10.2, 100.5, -100.5]
+
+# print negative and positive floating point numbers
+for i in numbers:
+    display.print(i)
+    time.sleep(0.5)
+
+# print hex values, enable colon
+for i in range(0xFF):
+    display.fill(0)
+    display.print(':')
+    display.print(hex(i))
+    time.sleep(0.25)