57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
import hyperion
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import time
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import colorsys
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# Get the parameters
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speed = float(hyperion.args.get('speed', 1.0))
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fadeFactor = float(hyperion.args.get('fadeFactor', 0.7))
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color = hyperion.args.get('color', (255,0,0))
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# Check parameters
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speed = max(0.0001, speed)
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fadeFactor = max(0.0, min(fadeFactor, 1.0))
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# Initialize the led data
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width = 25
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imageData = bytearray(width * (0,0,0))
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imageData[0] = color[0]
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imageData[1] = color[1]
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imageData[2] = color[2]
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# Calculate the sleep time and rotation increment
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increment = 1
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sleepTime = 1.0 / (speed * width)
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while sleepTime < 0.05:
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increment *= 2
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sleepTime *= 2
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# Start the write data loop
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position = 0
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direction = 1
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while not hyperion.abort():
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hyperion.setImage(width, 1, imageData)
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# Move data into next state
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for i in range(increment):
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position += direction
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if position == -1:
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position = 1
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direction = 1
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elif position == width:
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position = width-2
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direction = -1
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# Fade the old data
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for j in range(width):
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imageData[3*j] = int(fadeFactor * imageData[3*j])
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imageData[3*j+1] = int(fadeFactor * imageData[3*j+1])
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imageData[3*j+2] = int(fadeFactor * imageData[3*j+2])
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# Insert new data
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imageData[3*position] = color[0]
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imageData[3*position+1] = color[1]
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imageData[3*position+2] = color[2]
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# Sleep for a while
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time.sleep(sleepTime)
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