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Factory Firmware Instructions

This section describes how to use the factory firmware for the ESP32-C6-LCD-2.73. The factory firmware corresponds to the ESP-IDF example program 01_factory, which includes the Main Interface, Settings, Sensor, Photo, and Weather pages.

Hardware Preparation​

  • ESP32-C6-LCD-2.73 development board x1
  • USB cable x1
  • TF card x1 (required only for the Photo page)
  • Wi-Fi hotspot with internet access (required only for the Weather page)

Firmware Description​

  • The factory firmware is located in the Firmware directory of the example package.
  • The source code for the factory firmware is located in the code/idf/01_factory directory of the example program package.
  • Upon startup, the example initializes NVS, TF, CH32V003 IO expansion, PCF85063 RTC, LCD, LVGL, and the application menu.
  • The status bar displays the time and Wi-Fi status, with the time synchronized from the RTC.

USB Download Notes​

Using USB to download programs to the development board

If the port cannot be recognized, please enter Boot mode:

  1. Press and hold the BOOT button.
  2. Connect the USB to the computer.
  3. Release the BOOT button.

After the download is complete, power cycle the board to run the program.

Main Interface and Pages​

Upon startup, the LCD displays the factory firmware main interface. Use the onboard buttons to select and enter each page.

Main PageSettings Page
ESP32-C6-LCD-2.73 factory main page
ESP32-C6-LCD-2.73 factory settings page
Sensor PageWeather Page
ESP32-C6-LCD-2.73 factory sensor page
ESP32-C6-LCD-2.73 factory weather page
Photo Page
ESP32-C6-LCD-2.73 factory photo page

Settings Page​

The Settings page is used to view and configure onboard functions:

  • Configure Wi-Fi.
  • Adjust LCD backlight.
  • View TF card capacity.
  • View battery information.
  • View About information.

For the Weather page to function, Wi-Fi must first be configured in the Settings page.

Sensor Page​

The Sensor page displays onboard sensor data:

  • QMI8658 accelerometer data.
  • QMI8658 gyroscope data.
  • SHTC3 temperature and humidity data.

When the development board is slightly tilted or rotated, the accelerometer and gyroscope data will change accordingly.

Photo Page​

The Photo page reads image files from the TF card:

  • Supports .jpg and .jpeg images in the /sdcard/photo directory.
  • The page provides Previous, Next, and Back controls.
  • Before use, insert a TF card formatted as FAT or FAT32 into the development board and create a photo directory on the card.

Weather Page​

The Weather page is used to display weather information. Before use, configure Wi-Fi with internet access in the Settings page.

Troubleshooting​

SymptomPossible CauseAction
Screen stays offPower supply abnormal, LCD reset failure, or backlight not turned onReconnect the USB and restart; for program troubleshooting, refer to the ESP-IDF 02_lvgl_demo and 07_exio examples
Weather page shows no dataWi-Fi not connected or network unavailableConfigure Wi-Fi in the Settings page and confirm the hotspot can access the internet
Photo page shows no imagesTF card not mounted, directory does not exist, or image format mismatchConfirm the /photo directory exists on the TF card and place .jpg or .jpeg images inside
Sensor page shows no dataI2C peripheral initialization failureRefer to the ESP-IDF 04_qmi8658, 06_shtc3, and 07_exio examples for troubleshooting