44 lines
1.3 KiB
Python
44 lines
1.3 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 spins two green lights with trails."""
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import ser2neo
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import time
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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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at = 0
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anim = ser2neo.Animator()
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while anim.run_for(5):
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neo.clear()
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neo.set(at, ser2neo.Colour.Green)
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neo.set(at - 1, ser2neo.Colour.Green / 4)
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neo.set(at - 2, ser2neo.Colour.Green / 16)
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neo.set(at + neo.nleds / 2, ser2neo.Colour.Green)
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neo.set(at + neo.nleds / 2 - 1, ser2neo.Colour.Green / 4)
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neo.set(at + neo.nleds / 2 - 2, ser2neo.Colour.Green / 16)
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at += 1
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neo.send()
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neo.wait()
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time.sleep(0.05)
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if __name__ == '__main__':
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main()
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