Help with led brightness (ws2801+arduino uno+Rpi3)

  • Hello,
    i am new to this forum.. i have already completed building ambilight for any HDMI source but i have a problem with led brightness. ihave read somewhere tht you can increase brightness without effecting your gamma and color


    Things: Raspberry pi 3 with hyperion installed
    - arduino uno r3 connected to raspberry via usb
    - ws2801 5050 (total 69leds) led powered by 5v 8A power supply connected to arduino

    i have 4 hdmi input
    1.STB
    2. PS3
    3. RPI3
    4. My laptop
    all these are connected to 5 port hdmi switcher and the output goes to 2 port hdmi spliter


    2 port hdmi splitter - one output goes to tv and another one goes to hdmi2av
    from hdmi2av - one video rc cable to easycap video grabber and grabber usb to raspberry pi


    i have set gamma and color correction in hyperion
    the only problem is led brightness

    my arduino sketch :-


  • Adding max_brightness won't help - I don't think anything else in the sketch acres about it.


    I can't see how you can adjust brightness separate from gamma and colour correction - I'm no vision expert but aren't they fairly interdependent ?


    Do you get sufficient brightness on effects and setting solid colours ?

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