1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

How should you turn of the LED?

Discussion in 'Hyperion General' started by Dewi, 28 May 2019.

  1. Dewi

    Dewi New Member

    Messages:
    8
    Hardware:
    RPi3
    I build an ambilight using the APA102.
    Can I just turn the LED lights off (brightness 0) or should I remove it completely from the electricity (smart plug)
     
  2. Arakon

    Arakon Member

    Messages:
    150
    Hardware:
    RPi1/Zero, RPi3, +Arduino
    Either works, but it'll still keep using power if not turned off fully.
    I use a master-slave plug that turns off the power to my whole AV system, TV, media player and ambilight when the receiver is turned off.
     
  3. Dewi

    Dewi New Member

    Messages:
    8
    Hardware:
    RPi3
    Okay, Thanks
     
  4. TPmodding

    TPmodding Administrator Staff Member Administrator

    Messages:
    1,280
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +nodeMCU/ESP8266
    if you do it this way, make sure your sd-card is read-only...otherwise you could damage your system
     
  5. Dewi

    Dewi New Member

    Messages:
    8
    Hardware:
    RPi3
    How can I tell If my sd card is read only?
     
  6. Akriss

    Akriss Active Member

    Messages:
    491
    Hardware:
    RPi1/Zero, RPi2, RPi3, 32/64bit, +Arduino, +nodeMCU/ESP8266
  7. Arakon

    Arakon Member

    Messages:
    150
    Hardware:
    RPi1/Zero, RPi3, +Arduino
    I use this method:
    https://learn.adafruit.com/read-only-raspberry-pi/overview
    Their "You can never ever undo this" is a bit misleading, though. If you need to make any changes, it's as simple as SSHing into the Pi and running

    mount -o remount,rw /


    This gets you write access until the next reboot, to make any changes and calibrations as needed.
     
    • Like Like x 1