# The WORKBENCH part 1

**URL:** <https://www.thethingsnetwork.org/forum/t/the-workbench-part-1/8970>\
**Category:** Hardware\
**Created:** [August 15, 2017, 9:40am UTC](https://www.thethingsnetwork.org/forum/t/the-workbench-part-1/8970 "2017-08-15T09:40:22Z")\
**Posts on this page:** 1\
**Showing post:** 86

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**Author:** ![GryKyo](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/grykyo/32/48516_2.png) [@GryKyo](https://www.thethingsnetwork.org/forum/u/GryKyo)\
**Post date:** [November 5, 2017, 11:25pm UTC](https://www.thethingsnetwork.org/forum/t/the-workbench-part-1/8970/86 "2017-11-05T23:25:27Z")

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> [@BoRRoZ](#):
>
> so now how do I make a bi colour led blinking a pattern without disturbing lmic…

You run your LED code in a separate function on the other ESP32 processor core as explained by Andreas Spiess - [Video link posted on the BIG ESP32 thread](https://www.thethingsnetwork.org/forum/t/big-esp32-sx127x-topic/10247/41)

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