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FAQ

Q: After programming the module, sometimes I cannot connect to the serial port or the upload fails on a subsequent attempt?
  • You can hold down the BOOT button, press RESET, then release RESET, and finally release the BOOT button. This will put the module into download mode, which resolves most programming issues.
Q: Failed to set up the VSCode environment?
  • First consider the network issue, try switching to another network.
Q: Error when compiling an Arduino program?

  • Check if the Arduino IDE -> Tools is properly configured.

    Arduino Configuration

Q: Why does the screen driver IC in the documentation say RM67162, but SH8601 appears in the example code?
  • The screen driver IC used on the ESP32-S3-AMOLED-1.91 is RM67162. The SH8601 QSPI driver library is compatible with the QSPI initialization and display data transfer of this screen.
Q: The first program compilation is extremely slow. How to handle it?
  • It's normal for the first compilation to be slow, just wait patiently.
Q: What should I do if I can't find the AppData folder?
  1. Some AppData folders are hidden by default and can be set to be displayed.
  2. File Explorer -> View -> Check "Hidden items".
Q: How do I check which COM port I am using?

Windows System:

  1. Through Device Manager: Press Windows + R to open the "Run" dialog box. Type devmgmt.msc and press Enter to open Device Manager. Expand the "Ports (COM & LPT)" section. All COM ports and their current status will be listed here.
  2. Using Command Prompt: Open the Command Prompt (CMD), enter the mode command, which will display status information for all COM ports.
  3. 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:

  1. Check using the dmesg command: Open the terminal.
  2. Check using the ls command: Type ls /dev/ttyS* or ls /dev/ttyUSB* to list all serial devices.
  3. Use the setserial command: Type setserial -g /dev/ttyS* to view configuration information for all serial devices.
Q: How to use SquareLine Studio to design interfaces?
Q: What is the screw specification for the four mounting screws?
  • The thread specification of the four mounting screws is M2.