FAQ

Q: Dark shadows appear at the bottom of the screen during use. How can I fix this?

A: Keep the screen brightness below 50% and avoid running it at full brightness for extended periods. Excessive brightness raises the screen temperature and may cause dark shadows to appear. If display issues occur, power off the board and let it rest for a while before flashing a program with lower brightness settings.

Q: I cannot connect to the serial port when reprogramming the device. What should I do?

A: Press and hold the BOOT button, then press the RESET button. Release RESET first, then release BOOT. This puts the board into download mode, after which you can flash the firmware again.

Q: The board keeps resetting, and the port keeps appearing and disappearing in Device Manager. What should I do?

A: This issue is usually related to a blank Flash or corrupted firmware. Put the board into download mode and re-flash the firmware.

Q: After flashing with ESP-IDF, the serial shows 'waiting for download'. What should I do?

A: Press the RESET button to reset the board. If there is no response, disconnect and reconnect the power supply.

Q: How can I check the current COM port?

A: On Windows, open Device Manager and expand "Ports (COM & LPT)" to view the port number. On Linux, use ls /dev/ttyUSB* or dmesg in the terminal to check for the serial device.

Q: Can I use the board without a TF card?

A: Yes. Examples that require TF card read/write or image loading will not work, but other features such as LCD, RGB LED, and wireless communication are unaffected.

Q: Why is there no serial output after successfully flashing the code?

A: The ESP32-C5-LCD-1.47 uses the native USB functionality of the ESP32-C5. Check the USB CDC, serial output, and port configuration in your project, and make sure the serial monitor is using the correct port and baud rate.

Q: Can I remove the screen myself?

A: The screen is bonded to the backplane. Do not attempt to remove it or pry open the adhesive layer, as this may damage the display.