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SOLVED Black background, White LEDS

Discussion in 'Software Support' started by TJ Rob, 22 November 2020.

  1. TJ Rob

    TJ Rob New Member

    Messages:
    6
    Hardware:
    RPi1/Zero, +Arduino, +nodeMCU/ESP8266
    When there is nothing on the screen or a black background the LEDs are white. They never cut off in these instances even when there is no signal.
     
  2. Martin Lev

    Martin Lev New Member

    Messages:
    2
    Hardware:
    RPi1/Zero
    I found it was outputting the raspberry I screen, via the LEDs.
    Look at the capture hardware settings, are you using USB? And also have platform capture active?
     
  3. TJ Rob

    TJ Rob New Member

    Messages:
    6
    Hardware:
    RPi1/Zero, +Arduino, +nodeMCU/ESP8266
    Yea I'm using USB, but turn off platform capture, as i'm only trying to get screen output of the USB signal coming in.
     
  4. TJ Rob

    TJ Rob New Member

    Messages:
    6
    Hardware:
    RPi1/Zero, +Arduino, +nodeMCU/ESP8266
    Anyone have any idea? The LEDs are working properly, just when I have a black background, the LEDs read it as white. I'm looking through my settings, and I have no idea what setting could be causing it.
     
  5. Lord-Grey

    Lord-Grey Moderator Staff Member Developer

    Messages:
    371
    Hardware:
    RPi3, 32/64bit
    Might be interesting for the community to get to know which LEDs you are using and how you configured them...
     
  6. TJ Rob

    TJ Rob New Member

    Messages:
    6
    Hardware:
    RPi1/Zero, +Arduino, +nodeMCU/ESP8266
    I have the WS2812B. They are attached the a Arduino Mega with the file that gets posted on here frequently (adalight). It's 600 LEDS. Running on a Raspberry pi 4.

    I was hoping it was something within Image processing, but I don't think there's anything for blacks, as it would be the usual rgb(0,0,0). Whatever additional information needed, I can provide.
     
  7. NeeeeB

    NeeeeB Active Member

    Messages:
    237
    Hardware:
    RPi3, +Arduino, +nodeMCU/ESP8266
    Might wanna try and play with gamma values, mine are set to 2.5 otherwise I get whitish color on black
     
  8. TJ Rob

    TJ Rob New Member

    Messages:
    6
    Hardware:
    RPi1/Zero, +Arduino, +nodeMCU/ESP8266
    Yeeeeeeea problem solved. Thank you NeeeeB. I'll tweak these settings. Thank you!
     
  9. NeeeeB

    NeeeeB Active Member

    Messages:
    237
    Hardware:
    RPi3, +Arduino, +nodeMCU/ESP8266
    You're welcome ;-)