SD Card Image Test Demo

Preparation

• 1 × supported OpenNextion ESP32-S3 smart display
• 1 × USB data cable
• 1 × microSD Card
• 1 × Windows/Mac computer

Before starting, ensure the USB cable supports data transfer and maintain a stable connection between the board and your computer.

Flashing the Firmware

1. Click Flash Online at the top of the page.
2. Select the OpenNextion device model you are using.
3. Choose the corresponding serial port when prompted in the browser.
4. Wait for erasing, writing, and verification to complete. Do not unplug the USB cable during this process.

After successful flashing, the board will automatically restart.

Operating Instructions

Format the SD card to FAT32. Save the image files (.jpg, .png, .bmp, .bin) in the images folder under the root directory of the SD card (the image resolution should match the screen resolution). Insert the SD card into the device, connect the power supply, and then swipe left or right on the screen to browse through the images.