Turn off LEDs on the LILYGO T-Display S3
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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?
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@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 -
@teastain - is that ever silly. Thanks teastain!
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@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 -
Many thanks for this information!
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@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 -
@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?).
