Here is a nice interface to build led strip animations:

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Here is a nice interface to build led strip animations: http://flickerstrip.com/
Do you know alternatives? I’d really like something like that to program patterns for my ESP8266-connected led strip.
http://flickerstrip.com

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I wrote PatternPaint for the BlinkyTape (which also lets you control pixels individually :wink: ):

http://blinkinlabs.com/blinkytape/patternpaint/

It’s open source and supports exporting animations to a header file for Arduino.