# Concentric Rings/Circle Mapping **URL:** \ **Category:** Patterns and Code\ **Created:** [October 16, 2020, 10:59pm UTC](https://forum.electromage.com/t/concentric-rings-circle-mapping/649 "2020-10-16T22:59:14Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![Scruffynerf](https://forum.electromage.com/letter_avatar_proxy/v4/letter/s/34f0e0/32.png) [@Scruffynerf](https://forum.electromage.com/u/Scruffynerf)\ **Post date:** [November 14, 2020, 4:58pm UTC](https://forum.electromage.com/t/concentric-rings-circle-mapping/649/17 "2020-11-14T16:58:41Z")
I’m going to move discussion of the above very cheap string to it’s own thread, due to some technical questions. > [@Timing of a cheap strand?](https://forum.electromage.com/t/timing-of-a-cheap-strand/739): > > As discussed in [Concentric Rings/Circle Mapping](https://forum.electromage.com/t/concentric-rings-circle-mapping/649/11) I found a very inexpensive set of 200 “fairy wire” addressable lights. I took the strand and attached it to my PB. the 3 wires are V+, G, Data. NOT V, D, G as usually found. I confirmed this. it’s RGB order perhaps it’s the 200 pixels, without added power at the far end (that’ll be my next trial but this was a quick and dirty setup), but it seemed VERY sensitive to timing: It seemed to prefer 333 and will light them all, but pixel 1… --- _[View the full topic](https://forum.electromage.com/t/concentric-rings-circle-mapping/649)._