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FAQ

Q: After downloading a program to the module, sometimes when re-downloading, the serial port cannot be connected or flashing fails?
  • Press the RESET button for more than 1 second, wait for the PC to re-recognize the device, then download again.
  • Long press the BOOT button, press RESET at the same time, then release RESET, then release the BOOT button, at this time the module can enter the download mode, which can solve most of the problems that can not be downloaded.
Q: The module keeps resetting, and when checking recognition status in Device Manager, it flashes on and off?
  • This may be caused by a blank Flash, which makes the USB port unstable. You can press and hold the BOOT button, press RESET, release RESET, then release the BOOT button. The module will enter download mode, and you can flash the firmware (program) to resolve the issue.
Q: The first compilation is extremely slow. What should I do?
  • It is normal for the first compilation to be slow. Just wait patiently.
Q: I cannot find the AppData folder. What should I do?
  • Some AppData folders are hidden by default. You can set them to be shown.
  • Path: Explorer->View->Check "Hidden items".
Q: How do I check the COM port I am using?

Windows system:

  • ① Check via Device Manager: Press Windows + R to open the "Run" dialog; enter devmgmt.msc and press Enter to open Device Manager; expand the "Ports (COM & LPT)" section, where all COM ports and their current status are listed.
  • ② Check using Command Prompt: Open Command Prompt (CMD); enter the mode command, which will display status information for all COM ports.
  • ③ Check 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:

  • ① Check using the dmesg command: Open the terminal.
  • ② Check using the ls command: Enter ls /dev/ttyS* or ls /dev/ttyUSB* to list all serial port devices.
  • ③ Check using the setserial command: Enter setserial -g /dev/ttyS* to view the configuration information for all serial port devices.
Q: Program flashing fails when using a Mac device?
Q: What is the screen driver?
  • GC9A01A
Q: What battery is used to power the ESP32-S3-LCD-1.28?
  • MX1.25 2P connector, for 3.7V battery, supports charging and discharging.