# Trying to use the effect chase to start from middle point of led strip

**URL:** <https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527>\
**Category:** Uncategorized\
**Created:** [October 17, 2023, 9:46am UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527 "2023-10-17T09:46:56Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ogamnriogq](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/ogamnriogq/32/6042_2.png) [@ogamnriogq](https://wled.discourse.group/u/ogamnriogq)\
**Post date:** [October 17, 2023, 9:46am UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527/1 "2023-10-17T09:46:56Z")

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basically i have an led strip connected to a ESP 8266 and theres a total of 690 leds on that strip. i want it to start from the 330 to 0 and then from 690 to 330 with the effect chase or something similar, and i want it to be in a playlist but i am having issues like the second sequence of 690 - 330 not playing after

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**Author:** ![TheLight3r](https://avatars.discourse-cdn.com/v4/letter/t/45deac/32.png) [@TheLight3r](https://wled.discourse.group/u/TheLight3r)\
**Post date:** [October 17, 2023, 5:19pm UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527/2 "2023-10-17T17:19:12Z")

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Did you tried out Segments?

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**Author:** ![ogamnriogq](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/ogamnriogq/32/6042_2.png) [@ogamnriogq](https://wled.discourse.group/u/ogamnriogq)\
**Post date:** [October 18, 2023, 2:04am UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527/3 "2023-10-18T02:04:20Z")

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no, because i cant call segments in home assistant

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**Author:** ![ogamnriogq](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/ogamnriogq/32/6042_2.png) [@ogamnriogq](https://wled.discourse.group/u/ogamnriogq)\
**Post date:** [October 18, 2023, 2:28am UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527/4 "2023-10-18T02:28:18Z")

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{“on”:true,“bri”:255,“transition”:0,“mainseg”:0,“seg”:[{“start”:0,“stop”:380,“col”:[[0,255,0],[0,0,0],[0,0,0]],“fx”:28,“sx”:10,“sel”:true,“rev”:true}]}

i want this code to only run from led 0 to led 380 once and once only, is that possible? thank you!

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**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://wled.discourse.group/u/Jinx)\
**Post date:** [October 18, 2023, 5:28am UTC](https://wled.discourse.group/t/trying-to-use-the-effect-chase-to-start-from-middle-point-of-led-strip/9527/5 "2023-10-18T05:28:37Z")

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Put it in a preset and use a playlist to play the preset?