under construction

ESP 32 Graphics

in Arduino IDE

Tested on

• TTGO T1

  • TTGO

• Lilygo T-Display S3

  • lilygo esp32-s3 T-Display

The manual

• TFT_eSPI.cpp.All.pdf

All examples from TFT_eSPI can be found here:

Src folder list: here

Status

As time of writing its tested with

• Lilygo T-Display S3

  • STY7789 graphic chip

  • 170 x 320 pixels

• TTGO T1 ttgo-t

  • STY7789 graphic chip

  • 135*240 pixels

Step by step install

We will install TFT_eSPI by Bomer

• https://github.com/Bodmer/TFT_eSPI

Tak a look or search in Arduino library manager

1. select ttgo t1 or lilygo T-Display S3 as controller

   1. so you can find libraries

2. open library manager

3. search for TFT_eSPI by Bomer

4. install it (time of writing vrs 2.5.43)

ESP32-S3 T-Display extra SW to be installed

For the ESP32-S3 T-Display you need to download and install one more library. See lilygo-s3-t-display/s3display.html

Configuration to your controller

You must edit two files in the library sec your path to … sketchbook/libraries/TFT_eSPI

The two files are

• User_Setup.h

• User_Setup_Select.h

Look in Src folder list: here

You will something like

        examples
            graphics
                analogclock.ino
            meter
                meter.ino
        lilygo-T-Display-S3
            User_Setup.h
            User_Setup_Select.h
        ttgo-t1
            User_Setup.h
            User_Setup_Select.h

So here you can pick up the precooked setup files.

XXXXXXXXXXXXXXXXXXXxxxx

About graphics

ESP32 graphics setup

We are using TFT_eSPI library which is in the Arduino package system.

Config:

fragment from the config files

In User_Setup.h
uncomment for the divice you are using

// JDNMOD ONLY ONE BELOW
// JDNMOD nov 2020/2024 for TTGO T1 below
#include <User_Setups/Setup25_TTGO_T_Display.h>    // JDN Setup file for ESP32 and TTGO T-Display ST7789V SPI bus TFT
// JDN nov 2020

//JDNMOD sep 24 for Se T-Display
//#include <User_Setups/Setup206_LilyGo_T_Display_S3.h> // JDN Setup file for ESP32-S3 lilygo T-Display
//JDN ENDE



In User_Setup_Select.h

uncomment for the divice you are using

// JDNMOD ONLY ONE BELOW
// JDNMOD  belowfor TTGO T1
//#include <User_Setups/Setup25_TTGO_T_Display.h>    // Setup file for ESP32 and TTGO T-Display ST7789V SPI bus TFT
// JDNMOD ENDE

//JDNMOD BELOW sep 24 for S3 T-Display
//#include <User_Setups/Setup206_LilyGo_T_Display_S3.h>     // For the LilyGo T-Display S3 based ESP32S3 with ST7789 170 x 320 TFT
// JDNMOD ENDE

ESP32-S3 T-Display extras

For the ESP32-S3 T-Display you need to download and install one more library. See lilygo-s3-t-display/s3display.html

A copy of the library as zipfile T-Display-S3-main.zip

BOOT PROBLEMS

• lilygo T-display

1. attach to PC usb port

2. hold the board with display up and usb port towards your body

3. BOOT button is on top on left side - press it and keep it pressed

4. Press RST(reset) button - left side on button towards you

5. Release RSt button

6. Release BOOT button

• https://www.reddit.com/r/esp32/comments/uowfqf/esp32_ttgo_doesnt_go_into_boot_mode/

For the TTGO the same procedure

• RST button is on top right side

• GPIO0 is BOOT on left site

• the other button is connected to GPIO 35

So just swapped compared to the lilygo

New

• Hacks - Added about I2C on different pins

Re Open source

Much of the esp32 code libraries is open but the code close to HW (wifi,…) is closed source.

XXXXXXXXXXXXXXXXXXXXXx

• TFT_eSPI by Bomer

  • https://github.com/Bodmer/TFT_eSPI

Libs to be installed

See in Ard lib manager

1. select ttgo t1 or lilygo T-Display S3 as controller

2. open library manager

3. search for TFT_eSPI by Bomer

4. install (time of writing vrs 2.5.43)

Status

As time of writing its tested with

• Lilygo T-Display S3

  • STY7789 graphic chip

  • 170 x 320 pixels

• TTGO T1 ttgo-t

  • STY7789 graphic chip

  • 135*240 pixels

Config files

Config files are located in on your machine in …./sketchbook/libraries/TFT_eSPI

LOOK for comment with JDN to see what I have activated in the Setup Files

You need edit User_Setup.h and User_Select.h acc to our display

or

just copy the prepared files you can find below in the list

so

Look in the folderlist for lilygo-T-Display-S3 or ttgo-t1

1. take a backup of the original files in the TFT_eSPI folder

2. copy files from the folder

Src folder list: here

ESP32-S3 T-Display extra SW to be installed

For the ESP32-S3 T-Display you need to download and install one more library. See lilygo-s3-t-display/s3display.html

A copy of the library as zipfile T-Display-S3-main.zip

Examples

Tested examples in the examples folder in

Src folder list: here

Config:

fragment from the config files

In User_Setup.h
uncomment for the divice you are using

// JDNMOD ONLY ONE BELOW
// JDNMOD nov 2020/2024 for TTGO T1 below
#include <User_Setups/Setup25_TTGO_T_Display.h>    // JDN Setup file for ESP32 and TTGO T-Display ST7789V SPI bus TFT
// JDN nov 2020

//JDNMOD sep 24 for Se T-Display
//#include <User_Setups/Setup206_LilyGo_T_Display_S3.h> // JDN Setup file for ESP32-S3 lilygo T-Display
//JDN ENDE



In User_Setup_Select.h

uncomment for the divice you are using

// JDNMOD ONLY ONE BELOW
// JDNMOD  belowfor TTGO T1
//#include <User_Setups/Setup25_TTGO_T_Display.h>    // Setup file for ESP32 and TTGO T-Display ST7789V SPI bus TFT
// JDNMOD ENDE

//JDNMOD BELOW sep 24 for S3 T-Display
//#include <User_Setups/Setup206_LilyGo_T_Display_S3.h>     // For the LilyGo T-Display S3 based ESP32S3 with ST7789 170 x 320 TFT
// JDNMOD ENDE

New

• Hacks - Added about I2C on different pins

Re Open source

Much of the esp32 code libraries is open but the code close to HW (wifi,…) is closed source.

THE BEER-WARE LICENSE (Revision v 42) jensd@jensd.dk wrote this file.
As long as you retain this notice you can do whatever you want with this stuff on these pages.
If we meet some day, and you think this stuff is worth it, you can buy me a beer in return :-)
(C) Jens Dalsgaard Nielsen
credit for license this goes to phk@FreeBSD.ORG