【program】

Download link: Demo

Software and library installation：

[] Download and install Arduino IDE: https://www.arduino.cc/en/software

[] Import ESP32 series chips and motherboard libraries in Arduino IDE
Please download the Esp32 by espressif systems 3.0.3, other versions may have problems

[] Import ESP32-S3-0.85 library
Open the downloaded Demo, enter the ESP32-S3-0.85-demo\Arduino\libraries folder, and copy all the files under lib to the library storage path
C:\Documents\Arduino\libraries (click to confirm how to view your own path)
Note: If you have installed the LVGL library before, please delete the previous LVGL and copy the files in lib to the libraries folder

Run the demo

Power-on default

[] The screen flashes red, blue, and green, then RGB lighting, before transitioning to a weather clock effect. (Phone settings)

Wi-Fi hotspot name: spotpear Password: spotpear123

The device will then automatically connect to your phone's hotspot and enter the Astronaut Weather Clock interface.

[] Press and hold the boot button. The default GIF will then play in Flash.

[] Press and hold the boot button again. Enter SD motion picture playback. After entering SD mode, press the boot button briefly to switch between different videos. [] It will cycle back to the weather clock.

RGB_LCD

Program Description

● This example demonstrates simultaneous RGB and LCD screen refresh display.

● setup() function:

undefined LCD_Init(): Initializes the GC9107 display (configures SPI, screen commands, backlight, etc.);

uundefined WS2812 _Init(): Initializes the GC9107 display (configures SPI, screen commands, backlight, etc.)

● loop() function:

undefined continuously refreshes the LCD and RGB

undefined delay(1000): Delay for 1 second to ensure refresh frequency.

  Running effect

_Video_demo

Program Description

● This example demonstrates SD card detection, video multimedia playback, and image playback.

Code Analysis

● setup() function

undefined Hardware initialization: Complete the Flash test, GC9107 display initialization, backlight settings, and WS2812B LED strip initialization in sequence;

undefined RGB self-test: The screen and light strip synchronously display red, green and blue colors in sequence, each for 1 second, and then the light strip turns off;

undefined SD Card Detection: Identifies the SD card type. If no card is found, an error message is displayed on the screen and the subsequent process is terminated. If a card is found, the video file is checked; if a video is present, the video playback module is initialized.

● loop() function

undefined Minimum play logic: If the SD card is not detected, simply delay the loop and do not perform any playback operation;

undefined Playback streaming: If the video module has been initialized, call Video_Play_Loop() to loop the video playback;

Running effect

If an SD card is present, press the button to switch videos; otherwise, an error message will be displayed on the screen and the process will terminate.

_LVGL_WeatherClock

Program Description

● This example demonstrates a weather clock system and video playback, displaying a weather clock on the GC9107 display and allowing users to switch videos using buttons, while balancing smooth operation with optimized CPU resource usage.

Code Analysis

● setup function

undefined Serial port initialization: The serial port is opened at a baud rate of 115200 for system log printing, which is convenient for debugging;

undefined Hardware/Driver Initialization: Perform Flash test, GC9107 display initialization, LVGL graphics library initialization, and SD card initialization in sequence;

undefined Peripheral configuration: Set the display backlight to 100% and initialize the weather clock business logic;

undefined Log output: Initialization progress is fed back via serial port, which is helpful for troubleshooting startup anomalies.

● loop function

undefined LVGL core processing: Calling Timer_Loop ensures that LVGL timers and animations are updated normally;

undefined Business logic loop: Execute WeatherClock_Loop to handle the real-time data update and display logic of the weather clock;

undefined Loop key detection: Determine if a key is pressed; if pressed, perform the corresponding operation.

undefined Resource optimization: Only 1ms latency is retained, which avoids excessive CPU usage and ensures high-frequency LVGL scheduling, balancing smoothness and resource consumption.