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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Commandline Wrapper
# Thomas Wenzlaff
# See LICENSE.rst for details.
import time
import argparse
from luma.led_matrix.device import max7219
from luma.core.interface.serial import spi, noop
from luma.core.legacy import show_message
from luma.core.legacy.font import proportional, CP437_FONT
def output(n, block_orientation, rotate, inreverse, text):
# create matrix device
serial = spi(port=0, device=0, gpio=noop())
device = max7219(serial, cascaded=n or 1, block_orientation=block_orientation,
rotate=rotate or 0, blocks_arranged_in_reverse_order=inreverse)
print(text)
show_message(device, text, fill="white", font=proportional(CP437_FONT), scroll_delay=0.05)
time.sleep(1)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='view_message arguments',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('--cascaded', '-n', type=int, default=1, help='Number of cascaded MAX7219 LED matrices')
parser.add_argument('--block-orientation', type=int, default=0, choices=[0, 90, -90], help='Corrects block orientation when wired vertically')
parser.add_argument('--rotate', type=int, default=0, choices=[0, 1, 2, 3], help='Rotate display 0=0°, 1=90°, 2=180°, 3=270°')
parser.add_argument('--reverse-order', type=bool, default=False, help='Set to true if blocks are in reverse order')
parser.add_argument('--text', '-t', default='>>> No text set', help='Set text message')
args = parser.parse_args()
try:
output(args.cascaded, args.block_orientation, args.rotate, args.reverse_order, args.text)
except KeyboardInterrupt:
pass
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