# Long run configuration help

**URL:** <https://forum.electromage.com/t/long-run-configuration-help/679>\
**Category:** Troubleshooting\
**Created:** [October 23, 2020, 4:52pm UTC](https://forum.electromage.com/t/long-run-configuration-help/679 "2020-10-23T16:52:29Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![Scruffynerf](https://forum.electromage.com/letter_avatar_proxy/v4/letter/s/34f0e0/32.png) [@Scruffynerf](https://forum.electromage.com/u/Scruffynerf)\
**Post date:** [October 27, 2020, 3:48pm UTC](https://forum.electromage.com/t/long-run-configuration-help/679/17 "2020-10-27T15:48:38Z")

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If you map the pixels on PB1 to be “left half” of the pixels, versus the ones connected to PB2 (“right half”) and run the same code (that uses mapping).

See [Configuring multiple PixelBlazes for different segments of long strip](https://forum.electromage.com/t/configuring-multiple-pixelblazes-for-different-segments-of-long-strip/528/8)

So long as the two PBs are in sync, they should calculate the same results and map correctly to the overall map. (So for example a music reaction program that puts moving colors out based on frequency bins and volume)

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