Strange result light not smooth

  • Hello friends,


    I recently build my ambilight using SK9822 60 led/m strip (i have 208 leds) powered by 5V 12A.
    I have set up hyperion using hypercon on my RPI 3 with osmc, downloaded images for calibration.


    Power supply's ground is also connected to ground on my PI.


    Below is my JSON :




    And here is the result :



    This is not really nice, is that normal ?

  • I am still fighting with my installation. I have seen strange things in attaches images


    https://www.noelshack.com/2018…stednonraw-thumb-12da.jpg
    https://www.noelshack.com/2018…stednonraw-thumb-12d9.jpg
    https://www.noelshack.com/2018…stednonraw-thumb-12d8.jpg


    First image is in picture folder i go on one of the grascale gradient, then 2nd image is the grayscale which doesn't look so bad then i close the image and go back to pitures folder image 1 and 3 should be the same but it's not. Do i have power supply problem? currently 5v 12A, should i order a new one like 5v 20A?


    If someone could answer it would very nice, thanks

  • How far from the wall is the tv? It looks to be -/+8cm.


    Are the led's mounted parallel to the wall?


    If both are a yes, I've had better results mounting the led's perpendicular to the wall, instead of parallel.


    Also a diffuser (milky led cover) could help. You can test by putting a piece of thin white paper covering some led's, to see how it looks.


    Hope it helps.

  • The Tv is close to the wall but leds are not on the tv but on a woodframe so they are perpendicular. Could i have a power supply problem, I have a 5v 12A for 3.45m 60led per meter. My led strip is SK9822 someone told me i should count 1Watt per led so i have 208led wich mean at least 200w mine is 60w

  • Your power supply is baseline OK. You might see problems when the screen is all white and then all the led's are driven to represent white, drawing there maximum currant. You might just not have found the sweet spot in calibrating the color settings.

  • Hi, no i have no level shifter, what is that ?
    By the way the two cables clock and data are about 75 cm is too long?


    I dont see any problem when i put all white color, the rainbow swirl looks also very nice at boot


    PS : i have a voltmeter if it can help to get measures ...

  • When i start a video on youtube to test color i have this :


    https://www.noelshack.com/2018…stednonraw-thumb-12d5.jpg


    And colours looks really nice, but on a movie or TV show it's really not good i have tried a lot of configuration none looks really good i always have some led showing wrong colours.


    I have seen this https://hyperion-project.org/wiki/using-level-shifter, what level shifter do you recommend?

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