51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
# Copyright 2015 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""Demo that shows a basic analogue clock."""
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import ser2neo
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import datetime
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import time
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def angle2idx(neo, angle, limit):
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return round(angle * neo.nleds / limit) % neo.nleds
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def main():
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port = ser2neo.open_port('/dev/ttyUSB0')
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neo = ser2neo.NeoPixels(port)
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anim = ser2neo.Animator()
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while anim.run_for(5):
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now = datetime.datetime.now()
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neo.clear()
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neo.set(angle2idx(neo, now.hour, 12), ser2neo.Colour.Blue)
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neo.set(angle2idx(neo, now.minute, 60), ser2neo.Colour.Red)
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# The quarter-hour ticks.
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top = ser2neo.Colour.Purple / 10
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mark = top / 4
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neo.set(angle2idx(neo, 0, 360), top)
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neo.set(angle2idx(neo, 90, 360), mark)
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neo.set(angle2idx(neo, 180, 360), mark)
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neo.set(angle2idx(neo, 270, 360), mark)
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neo.send()
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neo.wait()
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time.sleep(1)
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if __name__ == '__main__':
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main()
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