test_segments.py

import time
from Adafruit_LED_Backpack import SevenSegment

# ===========================================================================
# test display segments of 7-segment display
# ===========================================================================
segment = SevenSegment.SevenSegment(address=0x70)

# Initialize the display. Must be called once before using the display.
segment.begin()


# Continually update the time on a 4 char, 7-segment display

while(True):
    # turn each one on for a brief flash
    for pos in range(4):
        for seg in range(8):
            segment.clear()
            segment.set_led((pos*16)+seg, True)
            segment.write_display()
            time.sleep(0.5)
    # turn them all on for a long pulse
    segment.clear()
    for i in range(128):
        segment.set_led(i,True)
    segment.write_display()
    time.sleep(0.5)