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set some LEDs to stay always off

Discussion in 'Hyperion General' started by giovanne, 27 February 2018.

  1. giovanne

    giovanne Member

    RPi2, RPi3, +nodeMCU/ESP8266
    Is it possible and if yes what is the best way, when I have a setup with ws2801 leds on all four sides at the TV.
    For some tests, I want some leds to be disabled (should stay off all the time).
    E.g. if I only want to use the leds 'horizontal top' or 'horizontal top and some on the left and right'.

    So if my hyperion.config.json has defined led index 0 to 129.
    Now I only want to activate led '60 to 94', all the other should stay 'off'

    I found out, that if I set min and max to the same value, than the led is off:
    "index": 60,
    "hscan": { "minimum" : 0.3498, "maximum" :0.3498},
    "vscan": { "minimum" : 0.6118, "maximum" :0.6118}

    Is this the right way? (tested in hyperion classic)
    Or is there a better way to optimize data traffic on the SPI interface?
  2. JaY_III

    JaY_III New Member

    Have you tried deleting(comment out) the ones you dont want to work out of hyperion.config.json ?