# Attempting to make a round LED Matrix

**URL:** <https://wled.discourse.group/t/attempting-to-make-a-round-led-matrix/12286>\
**Category:** Questions\
**Created:** [July 23, 2024, 9:30am UTC](https://wled.discourse.group/t/attempting-to-make-a-round-led-matrix/12286 "2024-07-23T09:30:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anizee](https://avatars.discourse-cdn.com/v4/letter/a/f475e1/32.png) [@anizee](https://wled.discourse.group/u/anizee)\
**Post date:** [July 23, 2024, 9:30am UTC](https://wled.discourse.group/t/attempting-to-make-a-round-led-matrix/12286/1 "2024-07-23T09:30:52Z")

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I am attempting to build a round LED matrix. Total size will end up being 137 pixels. I would like to use the 2d matrix because some of those effects are really awesome. How would I go about mapping this so that it would work like a 13x13 square matrix skipping the missing LEDs.

Number of LEDs per row, centered:  
5  
9  
11  
11  
13  
13  
13  
13  
13  
11  
11  
9  
5

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**Author:** ![ALDIY](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/aldiy/32/2716_2.png) [@ALDIY](https://wled.discourse.group/u/ALDIY)\
**Post date:** [July 23, 2024, 11:37am UTC](https://wled.discourse.group/t/attempting-to-make-a-round-led-matrix/12286/2 "2024-07-23T11:37:11Z")

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So basically you are building a ring . Look here for an example of the mapping for that as a matrix [Noobie 241 led ring - #3 by ALDIY](https://wled.discourse.group/t/noobie-241-led-ring/10514/3)