| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
|---|
Project rewritten and simplification from I2C OLED example (ESP-IDF v5.0)
This example shows how to make use of the CH1116 panel driver from esp_lcd component to facilitate the porting of LVGL library. In the end, example will display a scrolling text on the OLED screen.
LittlevGL on a Monochrome OLED | LVGL’s Blog
- An ESP development board
- An CH1116 OLED LCD, with I2C interface
- An USB cable for power supply and programming
The connection between ESP Board and the LCD is as follows:
ESP Board OLED LCD (I2C)
+------------------+ +-------------------+
| GND+--------------+GND |
| | | |
| 3V3+--------------+VCC |
| | | |
| SDA+--------------+SDA |
| | | |
| SCL+--------------+SCL |
+------------------+ +-------------------+
The GPIO number used by this example can be changed in lvgl_example_main.c. Please pay attention to the I2C hardware device address as well, you should refer to your module's spec and schematic to determine that address.
Run idf.py -p PORT build flash monitor to build, flash and monitor the project. A scrolling text will show up on the LCD as expected.
The first time you run idf.py for the example will cost extra time as the build system needs to address the component dependencies and downloads the missing components from registry into managed_components folder.
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
...
I (0) cpu_start: Starting scheduler on APP CPU.
I (345) example: Initialize I2C bus
I (345) example: Install panel IO
I (345) example: Install CH1116 panel driver
I (455) example: Initialize LVGL library
I (455) example: Register display driver to LVGL
I (455) example: Install LVGL tick timer
I (455) example: Display LVGL Scroll Text
...For any technical queries, please open an [issue] (https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.