-
-
Notifications
You must be signed in to change notification settings - Fork 3.4k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
WS2811S 12V #1751
Comments
My idea: Data-Line with 5V works on most 12V Strips, like ws2815. See picture for wiring. |
As i found on my own setup, do not use transistor level shifters with ws2811, they cause flickering some times. |
Hello dmxlaser, I am experiencing the problem that you reference too I belive, I have a 5m 12v led strip with in total 150 leds hooked up. The strip works ok untill a certain point when I increase the brightness then the strips starts flickering. (depending on the choosen animation the brightness level at which flickering appears is different, it seems the more leds are lit at a given time the lower the brightness must be kept to not have the flickering effect. My questions are the following:
Thanks for any help much appreciated. |
Looks like a clear case of Low Power to the LED's Try powering the strip from both ends and it should be fine. |
Hi there. |
Hello, Thanks for the comment
I just managed to fix the problem yesterday, I soldered all unused ports on
the board to the ground and the problem is now gone,
The lights are now 100% stable
Cheers,
Koen
…On Mon, Mar 8, 2021 at 9:43 AM dmxlaser ***@***.***> wrote:
Hello dmxlaser,
I am experiencing the problem that you reference too I belive, I have a 5m
12v led strip with in total 150 leds hooked up.
There is levelshifter on the dataline (DVAR-SPK11978 from sparkfun) , the
strip is powered with a 5amp power supply (and the same supply is powering
the wemos d1 mini that drives the led via a voltage reducer. all grounds
are connected)
The strip works ok untill a certain point when I increase the brightness
then the strips starts flickering. (depending on the choosen animation the
brightness level at which flickering appears is different, it seems the
more leds are lit at a given time the lower the brightness must be kept to
not have the flickering effect.
My questions are the following:
- Is this indeed the behaviour when the level shifter is not ok ?
- the level shifters you are refering too are not on boards, how can I
solder them ? (I am a newbie so this is probably a dumb question)
-
Thanks for any help much appreciated.
Cheers
Hi there.
The DVAR-SPK11978 from sparkfun was my first choise and also was the
problem.
You can try to find a schematic with the sn74hct125n and solder it by
yourself or
try the TXS0102 breakout board if you don't
want something like the DVAR-SPK11978 from sparkfun.
—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
<#1751 (comment)>,
or unsubscribe
<https://github.com/notifications/unsubscribe-auth/AJS6P3PSM6SJV7REZX2BMOLTCSE3XANCNFSM4XV6T4PQ>
.
|
Hey! This issue has been open for quite some time without any new comments now. It will be closed automatically in a week if no further activity occurs. |
Any ideas how to run the WS2811S 12V strip, as the diode trick work only on 5v strips?
Thank you in advance
The text was updated successfully, but these errors were encountered: