Announcement

Collapse
No announcement yet.

4DPi-24Hat: switch screen on/off

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • seggi
    replied
    Hello Jakub,

    How Can i Genrate Pwm To The Pressing Button.
    i.e. i will press the Button genrate 1k pwm and again press the same button pwm will increase to the 2k .

    Thanks In Advance,
    Best Regards
    seggi.

    Leave a comment:


  • Jerson
    replied
    Hello Jakub,

    Previously the other method were still working up until the recent kernel update: file location and permission level changes. We're still on the process of updating the datasheets regarding this changes.

    Best Regards.

    Leave a comment:


  • jakub
    replied
    It is working exactly as I need it, thank you!

    I recommend to update your pdf file with documentation for the screen. It looks outdate in regards to Kernel.
    It would be also fine to add:
    - above information how to drive a screen on and off,
    - link to place where your kernels can be downloaded (possibly a place with all recently released kernels)

    btw. Your technical support is great and quickly responsive.

    Leave a comment:


  • Jerson
    replied
    Hello Jakub,

    You can try turning off the back light through this command:

    sudo sh -c 'echo 31 > /sys/class/backlight/4d-hats/brightness'

    Brightness can be set from 0 to 31

    I hope this helps,

    Best Regards

    Leave a comment:


  • jakub
    started a topic 4DPi-24Hat: switch screen on/off

    4DPi-24Hat: switch screen on/off

    Hello again,
    I was able to integrate 4DPi-2HAT (jumper set to not use PWM) into my project and it is running pretty well. It is working as a data logger and most of the time screen is not used.

    My goal is to use 4DPi-24 buttons to on and off the screen. Is there a way to ask screen driver to behave as I need?
    I was trying Linux command: sudo tvservice -o but as a result only HDMI output was deactivated.


Working...
X