Help, please.

[udas2003]

I just only begin to work with SPI displays and study the examples.
I examined some examples and no one does work, just white screen, that periodicaly turn to dark blue.
At the same time examples "graphictest" from Adafruit_ILI9341 and "mock_ili9341" from Adafruit-GFX
work as should.
At all cases I use the same set for Arduino pins.
Setup - UNO, converter 5v to 3.3v , chinese "red" SPI display 3.2" 240x320 from Ali.
Igor

[Bodmer]

Run the Read_User_Setup sketch and check the output is as you expect for your hardware.

[udas2003]

Hello Bodmer! I’m not skilled User at all! Retired, 69 years old – learn Arduino as a hobby. So, would you be so kind to give me more detailed instructions? I did find only one “Read_User_Setup sketch” in your TFT_eSPI library. I looked over the sketch and, as I understand, the one is for 32 bits processors. But I have modest UNO. Is this sketch what you recommend me? Best wishes Igor Run the Read_User_Setup sketch and check the output is as you expect for your hardware. —

[Bodmer]

Sorry, my response was for a different library. Currently I am travelling but will post back in a few days.

[Bodmer]

See this link. You must use voltage level converters as described.
https://www.google.com/amp/s/www.instructables.com/Arduino-TFT-display-and-font-library/%3famp_page=true

[udas2003]

Sorry, my response was for a different library. Currently I am travelling but will post back in a few days. Wish fun days! — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#23 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALVQDHJGKBGUSOZFG3ZLQ63TPSYTHANCNFSM45PWZXXA> . <https://github.com/notifications/beacon/ALVQDHIYHKXYSC3EKY24R2DTPSYTHA5CNFSM45PWZXXKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOGKKHE2Q.gif>

[udas2003]

See this link. You must use voltage level converters as described. https://www.google.com/amp/s/www.instructables.com/Arduino-TFT-display-and-font-library/%3famp_page=true — Ok, at holydays I”ll buy resistors and check such converter. Now, in successful sketches from Adafruit_ILI9341 and Adafruit_GFX libraries I used * 3.3V to display pin 1 (VCC) * 3.3V to display pin 8 (LED) * UNO 0V (GND) to display pin 2 (GND) * UNO pins 7,9(8???),10,11,13 through the converter on TXS0108E chip (see above). The pins numbers were chosen from TFT_Clock scetch or User_Setup.h: “// These are the control pins I use on my UNO/Nano/Pro Micro/ATmega328 setup // TFT_CS 10 // Chip select control pin // TFT_DC 9 // Data Command control pin // TFT_RST 7 // Reset pin (could connect to Arduino RESET pin)” In User_Setup.h : I commented out all Fonts besides Font4 (for TFT_Clock sketch), In “speed up options” only #define FAST_LINE is uncommented. I don’t see “Other F_AS_T option” “ If using an UNO or Mega (ATmega328 or ATmega2560 processor) then for best performance use the F_AS_T option found in the User_Setup.h file in the TFT_ILI9341 library folder.” Or do you mean #define FAST_LINE? Best wishes Igor