zener/lvgl_esp32_drivers
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README.md
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@ -6,6 +6,8 @@ For a ready to use ESP32 project take look at the [lv_port_esp32](https://github
- [Supported display controllers](#supported-display-controllers)
- [Supported indev controllers](#supported-indev-controllers)
- [Support for predefined development kits](#support-for-predefined-development-kits)
- [Thread-safe I2C with I2C Manager](#thread-safe-i2c-with-i2c-manager)
- [Backlight control](#backlight-control)
**NOTE:** You need to set the display horizontal and vertical size, color depth and
swap of RGB565 color on the LVGL configuration menuconfig (it's not handled automatically).
@ -28,6 +30,7 @@ swap of RGB565 color on the LVGL configuration menuconfig (it's not handled auto
| RA8875 | TFT | SPI | 16: RGB565 | Yes |
| SH1107 | Monochrome | SPI | 1: 1byte per pixel | No |
| SSD1306 | Monochrome | I2C | 1: 1byte per pixel | No |
| PCD8544 | Monochrome | SPI | 1: 1byte per pixel | No |
| IL3820 | e-Paper | SPI | 1: 1byte per pixel | No |
| UC8151D/ GoodDisplay GDEW0154M10 DES | e-Paper | SPI | 1: 1byte per pixel | No |
| FitiPower JD79653A/ GoodDisplay GDEW0154M09 | e-Paper | SPI | 1: 1byte per pixel | No |
@ -41,8 +44,8 @@ To use an EPDiy supported epaper you need to add it [as a component using git su
## Supported indev controllers
- XPT2046
- FT3236
- other FT6X36 or the FT6206 controllers should work as well (not tested)
- FT3236, FT6X36
- FT6206 controllers should work as well (not tested)
- STMPE610
- FT81x (Single, Dual, and Quad SPI)
- L58 touch component hook (Used in Lilygo EPD47 parallel with EPDiy driver)
@ -59,7 +62,7 @@ and sets the gpio numbers for the interface.
|---------------------------|-----------------------|-----------|-----------|-----------|
| ESP Wrover Kit v4.1 | ILI9341 | SPI | 240 | 320 |
| M5Stack | ILI9341 | SPI | 240 | 320 |
| M5Core2 | ILI9341 | SPI | 240 | 320 |
| M5Stack Core2 | ILI9341 | SPI | 240 | 320 |
| M5Stick | SH1107 | SPI | - | - |
| M5StickC | ST7735S | SPI | 80 | 160 |
| Adafruit 3.5 Featherwing | HX8357 | SPI | 480 | 320 |
@ -72,3 +75,27 @@ and sets the gpio numbers for the interface.
**NOTE:** See [Supported display controllers](#supported-display-controllers) for more information on display configuration.
**NOTE:** See [Supported indev controllers](#supported-indev-controllers) for more information about indev configuration.
## Thread-safe I2C with I2C Manager
LVGL can use I2C to read from a touch sensor or write to a display, possibly
many times a second. Meanwhile, other tasks may also want to read from i2c
devices on the same bus. I2C using the ESP-IDF is not thread-safe.
I2C Manager (`i2c_manager`) is a component that will let code in multiple threads
talk to devices on the I2C ports without getting in each other's way. These drivers
use a built-in copy of I2C Manager to talk to the I2C port, but you can also use
the I2C Manager component itself and have others play nice with LVGL and vice-versa.
[Click here](i2c_manager/README.md) for details.
## Backlight control
Control of LCD's backlight is provided by separate module that is independent from the display driver.
Configuration of the backlight controller can be found in menuconfig `LVGL ESP Drivers -> LVGL TFT Display controller`.
There are three modes of operation:
1. Off - No backlight control
2. Switch - Allows ON/OFF control
3. PWM - Allows brightness control (by Pulse-Width-Modulated signal)