Posts by Nugsc

  • Ambilght blinkt wenn im Zimmer Licht eingeschaltet wird

    Hallo,

    danke für die vielen Antworten. Es lag/liegt wohl wirklich am Levelshifter.

    es leuchteten alle LEDs weiß/blau auf wenn die lichter in irgendeinem zimmer angingen.

    Wenn ich die Channel geändert habe hat es ab und zu auch im noirmalen Betrieb angefangen zu flackern. Weg ging es gar nicht, bis mir ein versehen passiert ist. Ich habe die 5 V Versorgung vom levelshifter vergessen und auf ainmal ging alles 8|

    Wenn ich den Levelshifter komplett weglasse bekomme ich wieder ein Regenbogenflackern...

    Die länge der Datenleitung ist ca 50cm lang und zusammen mit der Versorgung in einem Schrumpfschlauch.

  • Ambilght blinkt wenn im Zimmer Licht eingeschaltet wird

    Hi,

    Ambilight funktioniert prima und vielen Dank an alle beteiligten.

    Ich habe 130 sk6812 LEDs mit einem 10a Netzteil und einem levelshifter.

    Problem ist folgendes: Wenn in irgendeinem Zimmer das Licht ein oder ausgeschaltet wird blinken alle kurz LEDs auf. Egal ob grad der Fernseher an ist oder nicht. Masse vom Netzteil ist mitm levelshifter und RPi verbunden.

    Jmd eine Idee woran das liegen könnte?

  • Sk6812 flickers every 15-60 sec

    Quote from jeroen warmerdam

    so its a grounding problem >> follow my advice and use at least 2 GND pins from Raspi to LV gnd input.
    then connect all other grounds from HV output gnd to GND ledstrip/PSU and your problems are over


    remove the connection LV to HV GND wire :biggrin:

    Thanks workins now how it should work :) i am happy

    The problem was the 5 V of the RPi, i just switch the 5 V from the Rpi to the PSU and it worked.

    I also did some new wiring right away.
    PSU GND --> RPI Pin 34+39
    PSU GND --> StripGnd--Start + End
    PSU 5V --> Level Shifter HV
    PSU 5V --> Strip-Start + End

    RPi Pin 19 --> Levelshifter LV2
    Rpi Pin 1 --> Levelshifter LV
    Levelshifter HV2 --> Data In
    LV GND not connected to HV GND

    Quote from Dominic

    You say the default is 1000000 but my default when I set mine up is 3000000?

    I’m having the same issue with the flickering and can’t find a solution. Which is driving me mad.

    What was the baudrate?

    default was mine 30000000 too. Now i set it to 32500000. it looks more smooth to me, but maybe I'm just imagining it. Do you have a levelshifter? if not you can try to only setup the first 20 LEDs and test if they stop flicker. I could run 22 Leds without the Levelshifter, more and it flickered
    also the answer for:

    Quote from davieboy

    why not run it directly from the pi without the levelshifter or resistor? even as a process of elimination.


    The 470 Ohms are to protect the first led

    Looks like that and works :D, Thanks everybody

  • Sk6812 flickers every 15-60 sec

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    just see, if i touch the data cable and the tv frame the flicker stops 8|

  • Sk6812 flickers every 15-60 sec

    Quote from jeroen warmerdam

    Ground at least 2 pins GND on your Raspi would be my strong advice.

    how did you setup? 1 PSU or 2 PSU?
    how much lights?


    see for schematics this topic; https://hyperion-project.org/threads/correc…i4.10701/page-2

    1 powersupply th eone in the picture
    132 leds (42,24,42,24)

    in the linked topic i see they connect 5 V from power supply with the 5 V of the RPi, could try this too. but i dont think its that.
    And the second ground from the rpi

    In the levelshifter i think it doesnt matter if i use LV1, 2, 3 or 4.
    the LV and HV grounds are connected together

    will make a new board for the levelshifter and give feedback about if it works better

    Could it be that i have a bad power supply with not stable voltage? I measured 5,06 V, could a 1000uF capacity help?
    I hear a quiet beep from the power supply during operation

    Thanks

  • Sk6812 flickers every 15-60 sec

    I try to change the baudrate
    150000 - all LEds White
    1000000 - all LEDs White
    2000000 - all LEDs White
    2500000 - Works with flicker
    3000000 - Works with flicker
    3500000 - Works with flicker
    4000000 - Works with flicker
    4500000 - all LED's off

    will now trywithout to replace the ressistor with a potentiometer

  • Sk6812 flickers every 15-60 sec

    Hello first time
    Thanks first of all to this great community.
    I have motivated me and built everything together.

    But now I have a problem, when the LEDs change too fast all leds flicker. With still images and slow movements everything is fine.

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    My setup looks like this.


    AC/DC Power supply

    -V: 4 Wires to: Strip GND-Start, Strip GND-End, RPI PIN 39, GNDLevel-Shifter
    +V: 2 Wires to: Strip 5V-Start, Strip +V-End

    Levelshifter https://www.amazon.de/gp/product/B07RDHR315?tag=hyperioforum-21&ie=UTF8&psc=1
    3.3 V from Raspberry PIN 1
    5 V from Raspberry PIN 2
    LV from PIN 19 (GPIO 10 MOSI)
    HV to 470 Ohm to Din-Strip

    LED's i bought
    https://www.amazon.de/gp/product/B08C2XQN1K?tag=hyperioforum-21&ie=UTF8&psc=1


    I measured the signal Blue from Pin 19 and after the Levelshifter (before 470 Ohm). Could this be the Problem? Without levelshifter every leds flicker the whole time

    Settings in Hyperion:


    Would be very grateful for any help