TTGO T-Display LVGL Example

This project demonstrates how to initialize and control the ST7789 LCD display on the TTGO T-Display board using ESP-IDF. The main application sets up SPI communication, configures the display, and draws a bitmap image.

Autor: Plinio Barbosa da Silva

Linkedin: https://www.linkedin.com/in/pl%C3%ADnio-barbosa-28171072/

Features

• SPI bus initialization for LCD communication
• ST7789 LCD panel configuration
• Backlight and reset control
• Bitmap image rendering
• Periodic serial console output

Hardware

• TTGO T-Display (ESP32)
• ST7789 LCD (240x135 resolution)

Pin Configuration

Signal	GPIO
MOSI	19
MISO	-1
SCLK	18
CS	5
DC	16
BL (Backlight)	4
RST	23

Usage

1. Clone this repository.

2. Place your bitmap image data in main/image.c.

3. Build and flash the project using ESP-IDF:

   idf.py build
   idf.py flash

4. The display will show the image and print a message every second.

File Structure

• main/main.c: Main application source code.
• main/image.c: Bitmap image data to be displayed.

License

See LICENSE for details.