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Bodmer / TFT_eSPI

Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
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TTGO Camera plus - config looks fine, still no example works and no error message #1007

Closed NRJMons closed 3 years ago

NRJMons commented 3 years ago

Hi Bodmer

First of all, thank you for your work, it's really hard for a beginner to find his way around and I appreciate greatly your work.

After some reading, I finally understood what to do and uncommented the line Setup44 for my TTGO Camera plus in the User_Setup_Select.h, and I also commented the default User_setup.h define.

I then uploaded to my TTGO the example "Read user setup.ino" and got the following in the serial monitor:

13:50:25.111 -> TFT_eSPI ver = 2.3.59 13:50:25.111 -> Processor = ESP32 13:50:25.111 -> Frequency = 240MHz 13:50:25.111 -> Transactions = Yes 13:50:25.111 -> Interface = SPI 13:50:25.111 -> Display driver = 7789 13:50:25.146 -> Display width = 240 13:50:25.146 -> Display height = 240 13:50:25.146 -> 13:50:25.146 -> MOSI = GPIO 19 13:50:25.146 -> MISO = GPIO 22 13:50:25.146 -> SCK = GPIO 21 13:50:25.146 -> TFT_CS = GPIO 12 13:50:25.146 -> TFT_DC = GPIO 15 13:50:25.146 -> 13:50:25.146 -> Font GLCD loaded 13:50:25.146 -> Font 2 loaded 13:50:25.146 -> Font 4 loaded 13:50:25.146 -> Font 6 loaded 13:50:25.146 -> Font 7 loaded 13:50:25.146 -> Font 8 loaded 13:50:25.146 -> Smooth font enabled 13:50:25.146 -> 13:50:25.146 -> Display SPI frequency = 40.00 13:50:25.146 ->

So, to me, it looks fine.

I then tried to upload the code "Colour test", no error, it boots fine. But nothing happends, TFT screen remains black.

Can you please help me?

Big thanks in advance.

Nico

Bodmer commented 3 years ago

Hi, You seem to have done all the right things. The setup 44 was provided by a user as working but I note that no backlight pin has been declared. Is the display backlight on? The backlight is on GPIO 2 and can be controlled from you sketch.

At this point I would not fit an SD card as that can cause a conflict. When you do use a SD card then you will need to ensure the chip select is set high at the beginning of setup(), othrwise there may be aSPI bus conflict. simplest starting point though is not not use an SD card, then, providing the backlight is on the examples should run.

NRJMons commented 3 years ago

Hey Bodmer

Thanks a lot, problem solved indeed, I modified Setup44 based on what I found in Setup12 for backlight variable:

define ST7789_DRIVER

define TFT_WIDTH 240

define TFT_HEIGHT 240

define TFT_MOSI 19

define TFT_MISO 22

define TFT_SCLK 21

define TFT_CS 12

define TFT_DC 15

define TFT_RST -1

#define TFT_BL 2 // Backlight PIN ADDED here by me

My screen works now perfectly, all the examples work but are displayed as rotated 90° to the right...strange But it's probably the examples that are generic, I'll figure it out.

Thanks again for the fantastic work AND speed of reaction.

Nico

PS: I guess you need also to modify Setup44 in your source code now, sorry I don't know how to do that. ;)

NRJMons commented 3 years ago

I think you can close the issue, problem is solved

Bodmer commented 3 years ago

I have updated setup 44, thanks for reporting this.