Navigation

    LILYGO

    • Register
    • Login
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups

    Turn off LEDs on the LILYGO T-Display S3

    Technical Discussion
    3
    7
    3643
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • R
      RobLatour last edited by

      How do you, through Arduino code, turn off the green (power?) and rapidly flashing red (don't know what that is) LEDs on the back of the LILYGO T-Display S3?

      teastain 1 Reply Last reply Reply Quote 0
      • teastain
        teastain @RobLatour last edited by

        @roblatour They are not well documented by LilyGO.
        They are not user I/O, so you would have to blot them out with black paint.
        I have studied the rather useless schematic provided and Red is USB power and Green is not documented. I have asked LilyGO for an updated or at least correct dwg.
        -Terry

        R 1 Reply Last reply Reply Quote 1
        • R
          RobLatour @teastain last edited by

          @teastain - is that ever silly. Thanks teastain!

          teastain 1 Reply Last reply Reply Quote 0
          • teastain
            teastain @RobLatour last edited by

            @roblatour Thanks! I know you would like to turn them off, but...
            I submitted an Issue on their GitHub and got this response!
            "Thank you for your support to lilygo. The gray WS2812 in the schematic does not exist in reality. There are two LED lights on the board, one is for charging indication (it will flicker when the battery is not connected, it will be always on when it is connected to charging, and it will be off in other states). The other one is connected to the same line as the backlight to be controlled together with the backlight."
            I further tested and found these characteristics and posted it in my setup text:
            <on-board LED colours and function:>
            Green LED indicates board is powered up (Power Enabled) using either USB or Battery
            Red LED indicates Board is powered up by USB only

            H 1 Reply Last reply Reply Quote 1
            • H
              h5n1xp @teastain last edited by

              @teastain

              Many thanks for this information!

              teastain 1 Reply Last reply Reply Quote 0
              • teastain
                teastain @h5n1xp last edited by

                @h5n1xp Hi!
                I don't know if you've see this, but I have a support and setup guide that I made over on GurHub:
                https://github.com/teastainGit/LilyGO-T-display-S3-setup-and-examples
                Thanks for your support!
                -Terry

                H 1 Reply Last reply Reply Quote 2
                • H
                  h5n1xp @teastain last edited by

                  @teastain fantastic link many thanks again, do you know anything about using DMA on the ESP32-S3?

                  I want to try and improve the gfx performance of the Arduino_GFX library, and it looks like memory performance is quite the limiting factor (possibly due to the canvas buffers being allocated in ps_ram?).

                  1 Reply Last reply Reply Quote 0
                  • First post
                    Last post
                  Powered by NodeBB | Contributors