FAQ
Q: How to get more library support for the demo?
A: You can subscribe to this repository and raise an issue to describe your requirements. The engineers will assess your request as soon as possible: ESP32-display-support
Q: Why does the flashing fail?
- When the serial port is occupied, the flashing will fail. Close the serial port monitor and try to flash again
- When the ESP32 program crashes, the flashing will fail. In this case, you need to completely power off the development module, hold down BOOT button and power it on again to enter the forced download mode and then flash it. It will not automatically exit the download mode after flashing, so you need to power off and restart again
Q: How can I check which COM port I am using?
Windows System:
- Through Device Manager: Press Windows + R to open the "Run" dialog box. Type
devmgmt.mscand press Enter to open Device Manager. Expand the "Ports (COM & LPT)" section. All COM ports and their current status will be listed here. - Using Command Prompt: Open the Command Prompt (CMD), type the
modecommand, which will display status information for all COM ports. - Check the hardware connection: If an external device is already connected to a COM port, the device typically occupies a port number. You can determine which port is being used by checking the connected hardware.
Linux System:
- Use the
dmesgcommand: Open the terminal. - Use the
lscommand: Typels /dev/ttyS*orls /dev/ttyUSB*to list all serial devices. - Use the
setserialcommand: Typesetserial -g /dev/ttyS*to view configuration information for all serial devices.
Q: Can you help me review or modify my code? Can you help me modify the code?
This product is positioned as a development board, not a finished product. This product is positioned as a development board, not a finished product. The product ecosystem is based on the ESP32 core, which is very mature and the development environment is very friendly. We do not assist in modifying code. Please let the makers and geeks use their DIY skills. If you have questions, you can ask our engineers for answers.
If you like our product and wish to customize hardware, casing, software, etc. in bulk, please feel free to contact our sales.

Q: How to use SquareLine Studio to design interfaces?
Please refer to SquareLine Studio Tutorial.