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pulsing-brightness.py
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36
pulsing-brightness.py
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#!/usr/bin/env python
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from samplebase import SampleBase
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class GrayscaleBlock(SampleBase):
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def __init__(self, *args, **kwargs):
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super(GrayscaleBlock, self).__init__(*args, **kwargs)
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def run(self):
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max_brightness = self.matrix.brightness
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count = 0
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c = 255
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while (True):
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if self.matrix.brightness < 1:
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self.matrix.brightness = max_brightness
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count += 1
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else:
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self.matrix.brightness -= 1
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if count % 4 == 0:
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self.matrix.Fill(c, 0, 0)
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elif count % 4 == 1:
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self.matrix.Fill(0, c, 0)
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elif count % 4 == 2:
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self.matrix.Fill(0, 0, c)
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elif count % 4 == 3:
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self.matrix.Fill(c, c, c)
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self.usleep(20 * 1000)
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# Main function
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if __name__ == "__main__":
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grayscale_block = GrayscaleBlock()
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if (not grayscale_block.process()):
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grayscale_block.print_help()
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42
pulsing-colors.py
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42
pulsing-colors.py
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#!/usr/bin/env python
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from samplebase import SampleBase
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class PulsingColors(SampleBase):
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def __init__(self, *args, **kwargs):
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super(PulsingColors, self).__init__(*args, **kwargs)
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def run(self):
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self.offscreen_canvas = self.matrix.CreateFrameCanvas()
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continuum = 0
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while True:
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self.usleep(5 * 1000)
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continuum += 1
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continuum %= 3 * 255
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red = 0
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green = 0
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blue = 0
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if continuum <= 255:
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c = continuum
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blue = 255 - c
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red = c
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elif continuum > 255 and continuum <= 511:
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c = continuum - 256
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red = 255 - c
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green = c
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else:
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c = continuum - 512
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green = 255 - c
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blue = c
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self.offscreen_canvas.Fill(red, green, blue)
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self.offscreen_canvas = self.matrix.SwapOnVSync(self.offscreen_canvas)
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# Main function
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if __name__ == "__main__":
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pulsing_colors = PulsingColors()
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if (not pulsing_colors.process()):
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pulsing_colors.print_help()
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81
samplebase.py
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81
samplebase.py
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import argparse
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import time
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import sys
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import os
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sys.path.append(os.path.abspath(os.path.dirname(__file__) + '/..'))
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from rgbmatrix import RGBMatrix, RGBMatrixOptions
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class SampleBase(object):
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def __init__(self, *args, **kwargs):
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self.parser = argparse.ArgumentParser()
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self.parser.add_argument("-r", "--led-rows", action="store", help="Display rows. 16 for 16x32, 32 for 32x32. Default: 32", default=32, type=int)
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self.parser.add_argument("--led-cols", action="store", help="Panel columns. Typically 32 or 64. (Default: 32)", default=32, type=int)
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self.parser.add_argument("-c", "--led-chain", action="store", help="Daisy-chained boards. Default: 1.", default=1, type=int)
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self.parser.add_argument("-P", "--led-parallel", action="store", help="For Plus-models or RPi2: parallel chains. 1..3. Default: 1", default=1, type=int)
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self.parser.add_argument("-p", "--led-pwm-bits", action="store", help="Bits used for PWM. Something between 1..11. Default: 11", default=11, type=int)
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self.parser.add_argument("-b", "--led-brightness", action="store", help="Sets brightness level. Default: 100. Range: 1..100", default=100, type=int)
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self.parser.add_argument("-m", "--led-gpio-mapping", help="Hardware Mapping: regular, adafruit-hat, adafruit-hat-pwm" , choices=['regular', 'regular-pi1', 'adafruit-hat', 'adafruit-hat-pwm'], type=str)
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self.parser.add_argument("--led-scan-mode", action="store", help="Progressive or interlaced scan. 0 Progressive, 1 Interlaced (default)", default=1, choices=range(2), type=int)
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self.parser.add_argument("--led-pwm-lsb-nanoseconds", action="store", help="Base time-unit for the on-time in the lowest significant bit in nanoseconds. Default: 130", default=130, type=int)
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self.parser.add_argument("--led-show-refresh", action="store_true", help="Shows the current refresh rate of the LED panel")
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self.parser.add_argument("--led-slowdown-gpio", action="store", help="Slow down writing to GPIO. Range: 0..4. Default: 1", default=1, type=int)
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self.parser.add_argument("--led-no-hardware-pulse", action="store", help="Don't use hardware pin-pulse generation")
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self.parser.add_argument("--led-rgb-sequence", action="store", help="Switch if your matrix has led colors swapped. Default: RGB", default="RGB", type=str)
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self.parser.add_argument("--led-pixel-mapper", action="store", help="Apply pixel mappers. e.g \"Rotate:90\"", default="", type=str)
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self.parser.add_argument("--led-row-addr-type", action="store", help="0 = default; 1=AB-addressed panels; 2=row direct; 3=ABC-addressed panels; 4 = ABC Shift + DE direct", default=0, type=int, choices=[0,1,2,3,4])
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self.parser.add_argument("--led-multiplexing", action="store", help="Multiplexing type: 0=direct; 1=strip; 2=checker; 3=spiral; 4=ZStripe; 5=ZnMirrorZStripe; 6=coreman; 7=Kaler2Scan; 8=ZStripeUneven... (Default: 0)", default=0, type=int)
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self.parser.add_argument("--led-panel-type", action="store", help="Needed to initialize special panels. Supported: 'FM6126A'", default="", type=str)
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self.parser.add_argument("--led-no-drop-privs", dest="drop_privileges", help="Don't drop privileges from 'root' after initializing the hardware.", action='store_false')
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self.parser.set_defaults(drop_privileges=True)
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def usleep(self, value):
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time.sleep(value / 1000000.0)
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def run(self):
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print("Running")
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def process(self):
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self.args = self.parser.parse_args()
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options = RGBMatrixOptions()
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if self.args.led_gpio_mapping != None:
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options.hardware_mapping = self.args.led_gpio_mapping
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options.rows = self.args.led_rows
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options.cols = self.args.led_cols
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options.chain_length = self.args.led_chain
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options.parallel = self.args.led_parallel
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options.row_address_type = self.args.led_row_addr_type
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options.multiplexing = self.args.led_multiplexing
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options.pwm_bits = self.args.led_pwm_bits
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options.brightness = self.args.led_brightness
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options.pwm_lsb_nanoseconds = self.args.led_pwm_lsb_nanoseconds
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options.led_rgb_sequence = self.args.led_rgb_sequence
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options.pixel_mapper_config = self.args.led_pixel_mapper
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options.panel_type = self.args.led_panel_type
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if self.args.led_show_refresh:
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options.show_refresh_rate = 1
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if self.args.led_slowdown_gpio != None:
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options.gpio_slowdown = self.args.led_slowdown_gpio
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if self.args.led_no_hardware_pulse:
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options.disable_hardware_pulsing = True
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if not self.args.drop_privileges:
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options.drop_privileges=False
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self.matrix = RGBMatrix(options = options)
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try:
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# Start loop
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print("Press CTRL-C to stop sample")
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self.run()
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except KeyboardInterrupt:
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print("Exiting\n")
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sys.exit(0)
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return True
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