# Support of external PWM IC

**URL:** <https://wled.discourse.group/t/support-of-external-pwm-ic/3188>\
**Category:** Hardware\
**Created:** [July 9, 2021, 2:09pm UTC](https://wled.discourse.group/t/support-of-external-pwm-ic/3188 "2021-07-09T14:09:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chris87-ux](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/chris87-ux/32/383_2.png) [@Chris87-ux](https://wled.discourse.group/u/Chris87-ux)\
**Post date:** [July 9, 2021, 2:09pm UTC](https://wled.discourse.group/t/support-of-external-pwm-ic/3188/1 "2021-07-09T14:09:49Z")

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Hello together,  
I would like to controll 9 additional “special” LEDs (40V 2W) with WLED. Unfortunately my controller (WT32-ETH01) only has 5 additional outputs left.

Is there any support by default for an external PWM chip?

Thanks very much.  
Chris

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**Author:** ![srg74](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/srg74/32/3018_2.png) [@srg74](https://wled.discourse.group/u/srg74)\
**Post date:** [July 9, 2021, 9:19pm UTC](https://wled.discourse.group/t/support-of-external-pwm-ic/3188/2 "2021-07-09T21:19:51Z")

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Not yet

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**Author:** ![maxroseGIT](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/maxrosegit/32/9438_2.png) [@maxroseGIT](https://wled.discourse.group/u/maxroseGIT)\
**Post date:** [March 24, 2025, 6:35pm UTC](https://wled.discourse.group/t/support-of-external-pwm-ic/3188/3 "2025-03-24T18:35:53Z")

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I was wondering if support of external PWM ICs has progressed along the years?

Especially for the TLC5947 for which adafruit offers a [nice pinout board](https://www.adafruit.com/product/1429).