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  • prickle's Avatar
    02-26-2020, 10:55 AM
    No, not quickly. My working code is part of a larger project with some parts possibly covered by an NDA. I could post snippets as above but duff offered a library that would be better. Hi @duff, any progress on the...
    19 replies | 2509 view(s)
  • prickle's Avatar
    02-18-2020, 10:35 AM
    Here is how I connected the Teensy 4 to an ILI9341 resistive touch LCD with SD card The two transistors control the backlight with an active low signal and are NPN BC548 and PNP BC558. The 100 ohm resistors on...
    19 replies | 2509 view(s)
  • prickle's Avatar
    02-18-2020, 10:02 AM
    Hi @momosh13. Contrary to what I have been told, I find parallel displays in Arduino can be slow unless handled really well in the driver. I think they waste pins as well. I am not sure parallel connection for ili9488...
    19 replies | 2509 view(s)
  • prickle's Avatar
    02-18-2020, 07:03 AM
    Hi @momosh13 I can try. I use lvgl with esp32 and it runs really well. What kind of slow? What kind of screen? Connected how? Cheers, Prickle
    19 replies | 2509 view(s)
  • prickle's Avatar
    02-03-2020, 08:06 AM
    Sounds great @duff. Do your ILI9341 drivers use DMA? My current T4 lvgl setup could benefit from that. I have not had issues using map() for calibration. However, contact bounce or noise on the resistive touch lines...
    19 replies | 2509 view(s)
  • prickle's Avatar
    02-03-2020, 07:37 AM
    I never made any further progress on this despite spending too much time on it. I would very much like to see it working, but debugging it seems beyond my ability. Having exhausted myself with it, I thought I would wait...
    9 replies | 703 view(s)
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