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PWM flicker #1156

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DittelHome opened this issue Mar 23, 2018 · 7 comments
Closed

PWM flicker #1156

DittelHome opened this issue Mar 23, 2018 · 7 comments
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Category: Plugin Related to supported sensors Type: Enhancement Improve something already present

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@DittelHome
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NOTE: This is not a support forum! For questions and support go here: https://www.letscontrolit.com/forum/viewforum.php?f=1

Steps to reproduce

How can we trigger this problem?
PWM,pin,level results in a flicker on the connected LED. This is i known problem (i think), but i cant find a issue for it.

Does the problem persists after powering off and on? (just resetting isn't enough sometimes)
yes

Expected behavior

Tell us what should happen?
PWM without flicker

Actual behavior

Tell us what happens instead?
PWM with heartbeat problem, flickering.

System configuration

LCD display LED is connected to GPIO 5.
Flickerfree values are only 2, and 200 above.
Values from 3 until 200 are unusable. From 200 and above the LED is very bright.

Hardware:
wemos d1 mini

Software or git version:
ESPEasy_mega-20180323

@TD-er
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TD-er commented Mar 23, 2018

Just to summarize:

  • Flickerfree values are only 2, and 200 above.
  • When set, the output is constant, no periodical flickering? Or is it hard to detect at the outer ranges?

@TD-er TD-er added Type: Enhancement Improve something already present Category: Stabiliy Things that work, but not as long as desired Category: Plugin Related to supported sensors and removed Category: Stabiliy Things that work, but not as long as desired labels Mar 23, 2018
@DittelHome
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DittelHome commented Mar 23, 2018

Flickerfree values are only 2, and 200 above.

Absolutely correct

When set, the output is constant, no periodical flickering? Or is it hard to detect at the outer ranges?

pwm,5,2 ==> Result OK (no flickering)
pwm,5,2 to pwm,5,200 ==> Result not OK (flicker)
pwm,5,200 to pwm,5,1023 ==> Result OK (no flickering)
In other words, flickering appears only in range from 3 to round about 200. I think the flickering is unremarkable at higher pwm values, since the LED is already very bright.

@DittelHome
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Problem ist fixed with Core 2.4.x !!!

@Grovkillen
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Aaaah! 😍

@weisskopfjens
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For me, the problem is back :-/
Latest Build, Core 2_4_2.

@DittelHome
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Thats correct, problem was only fixed with core 2.4.1. I hope that the developer goes back to 2.4.1.

@weisskopfjens
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Thanks for the answer. I try build with 2.4.1, and pwm works fine.

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Labels
Category: Plugin Related to supported sensors Type: Enhancement Improve something already present
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4 participants