Features​

• Equipped with the high-performance ESP32-S3R8 featuring an Xtensa® 32-bit LX7 dual-core processor with a clock frequency up to 240 MHz
• Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE) with an integrated onboard antenna
• Built-in 512KB SRAM and 384KB ROM, with stacked 8MB PSRAM and external 16MB Flash storage
• Features a Type-C interface, eliminating the hassle of plug orientation and enhancing user convenience and device compatibility
• Onboard 1.54inch capacitive LCD screen, 240 × 240 resolution, 262K colors, capable of displaying color images clearly
• Onboard ES7210 audio codec chip, supporting dual-microphone audio capture and echo cancellation
• Onboard ES8311 audio codec chip, NS4150B power amplifier chip, microphone, and speaker
• Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion and posture in expanded applications
• Built-in ST7789 driver IC, communicating via SPI interface
• Built-in CST816 capacitive touch controller, communicating via I2C interface (touch version only)
• Onboard PLUS and BOOT buttons, both customizable for function development
• Onboard 3.7V 1.2mm lithium battery charging/discharging interface
• Exposes 1-ch I2C, 1-ch USB and 1-ch UART pads for external devices connection and debugging, enabling flexible peripheral configuration
• Onboard TF card slot supporting storage expansion and high-speed data transfer, facilitating functions like data logging and media playback while simplifying circuit design

Onboard Resources​

1. ESP32-S3R8 High-performance Xtensa® 32-bit LX7 dual-core processor, up to 240 MHz
2. 16MB NOR-Flash
3. NS4150B Audio power amplifier chip
4. ES8311 Low-power audio codec chip
5. ES7210 ADC chip for echo cancellation circuitry
6. Battery charge/discharge management chip
7. QMI8658 6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
8. PLUS Button User-defined button
9. PWR button
10. BOOT Button Used for device startup and functional debugging
11. Microphone Microphone input and echo cancellation
12. TF Card Slot
13. Onboard Chip Antenna Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)
14. MX1.25 Lithium Battery Header MX1.25 2PIN connector for connecting a 3.7V lithium battery, supports charging and discharging
15. Type-C Port
16. MX1.25 Speaker Header Non-polarized
17. 1.54inch Display Panel Connector
    

LCD and Its Controller​

• The LCD uses the built-in controller ST7789, a 240 × RGB × 320 pixel LCD controller. Since the LCD itself has a resolution of 240(H) × RGB × 240(V), the internal RAM of the LCD is not fully utilized.
• The LCD supports input color formats of 12-bit, 16-bit, and 18-bit per pixel, i.e., RGB444, RGB565, and RGB666. The examples use the RGB565 color format, which is also the most common RGB format.
• The LCD uses a 4-wire SPI communication interface, significantly saving GPIO pins while maintaining relatively fast communication speeds.

SPI Communication Protocol:

• Note: Unlike the traditional SPI protocol, because only display functionality is needed, the data line from the slave to the master is omitted

• RESX is the Reset pin; it is pulled low during module power-up and is normally set to 1.

• CSX is the slave chip select pin; the chip is enabled only when CS is low

• D/CX is the data/command control pin of the chip. When DC = 0, commands are written; when DC = 1, data is written.

• SDA is the data transmission pin, specifically for RGB data.

• SCL is the SPI communication clock pin.

• For SPI communication, data transmission follows a specific timing sequence, which are determined by the combination of clock phase (CPHA) and clock polarity (CPOL):

• The level of CPHA determines whether data is captured on the first or second clock transition edge of the serial synchronous clock. When CPHA = 0, data is captured on the first transition edge;

• The level of CPOL determines the idle level of the serial synchronous clock. CPOL = 0 means the idle state is low level.

• As shown in the diagram, data transmission begins on the first falling edge of SCLK, with 8 bits of data transferred per clock cycle using SPI mode 0, transmitting bits from MSB to LSB

Pinout Definition​

When using the reserved GPIO terminals on the board, pay attention to the wiring colors and corresponding functions to avoid damaging the development board due to incorrect wiring habits.

Dimensions​

To help users quickly understand the various functions of the product, we provide a series of test examples to familiarize customers with the use of each interface. Besides the ESP32-S3-Touch-LCD-1.54 host and its accompanying components, the following items are required to run the examples:

Component Preparation​

• ESP32-S3-Touch-LCD-1.54 ×1
• TF card ×1 (not required, needed only for TF card examples)

Assembly Guide

Precautions​

⚠️ USB Download Precautions (Important)​

Firmware Download​

• The example programs are located in the Firmware directory of the demo package.

Firmware Flashing​

• Unzip the software resource package (Flash_download_tool)
• Open the flash_download_tool_3.9.7.exe software. Select ESP32-S3 and USB based on the development board's MCU and interface.
  
• Parameter Settings
  • ①. Select the COM port corresponding to the development board
  • ②. Select the highest baud rate, 1152000
  • ③. Click "..." to select the bin file from the ESP32-S3-LCD-1.54-Demo\Firmware or ESP32-S3-Touch-LCD-1.54-Demo\Firmware directory provided in the example package. Manually enter the download address "0x00", and check the box on the far left
  • ④. Start flashing
    
• Flashing complete (the flashing process takes some time, please be patient)
• Press the reset button and observe the result
  

Example Introduction​

• The firmware uses the Brookesia component, showcasing various applications in an APP style, including Settings, Photo Album, Music Player, Video Player, Recording, Squareline, Xiaozhi AI, Gravity Ball, etc. (Supported only by the touch version).

App Example Introduction​

Settings App​

• Features Wi-Fi scanning and network configuration. Click WIFI on the interface, then wifi config to scan a QR code for network configuration

• Allows adjustment of display brightness and volume

• Displays the battery ADC voltage

• Product information screen where you can view the MAC address

  

Photo Album APP​

• Supports JPG image display. Support for more image formats is currently being adapted

• Simulates the interface of a digital photo album. This APP requires a TF card to be inserted with JPG image files placed in the photo directory to run correctly

  

Music APP​

• Simulates a music player interface. This app requires an inserted memory card with MP3 files placed in the music directory to function correctly

  

Video APP​

• Simulates the interface of a video player. This APP requires a TF card to be inserted with MP4 files placed in the video directory to run correctly

  

E-Book APP​

• Simulates the interface of an e-book reader. This APP requires a TF card to be inserted with TXT files placed in the fiction directory to run correctly

  

Recorder APP​

• This demo allows testing dual-microphone recording. Click the start button to begin recording, click again to stop recording. The app will then automatically play back the recorded audio

• The recorded audio file is saved in the root directory of the memory card

  

Squareline​

• This example demonstrates an LVGL demo created with SquareLine Studio

  

Gravity Ball​

• This example demonstrates a Gravity Ball application based on the 6-axis inertial sensor. The ball moves in real-time on the screen as the device is tilted, following its orientation

  

XiaoZhi AI APP​

• Click the APP icon to enter the Xiaozhi AI application. It is consistent with the version adapted for the Xiaozhi official website, and the operation method is the same. Double-click the Boot button to return to the Brookesia interface

  

XiaozhiAI (XiaoZhi AI) is an open-source AI voice chatbot project based on the ESP32 development board, aiming to bring the general intelligence of large language models (LLMs) to edge devices. It provides a software-hardware integrated solution supporting full-duplex voice conversations and IoT device control, dedicated to assisting developers in building highly customized physical AI agents quickly and at low cost.

This article demonstrates how to flash firmware for Waveshare ESP32 development boards that support XiaoZhi AI, covering two methods: flashing without a development environment (directly flashing precompiled firmware) and flashing with a development environment (compiling from source and flashing).

0. Firmware Flashing Process Reference​

1. Flashing Without a Development Environment​

1.1 Download Firmware from XiaoZhi Official GitHub​

1. Visit the XiaoZhi GitHub to download the firmware file for your device. Click Assets to expand the full file list:

   

2. Refer to the Flash Firmware Flashing and Erasing Tutorial to complete the firmware flashing.

1.2 Download Firmware from Waveshare GitHub​

1. Visit the Waveshare GitHub repository and download the appropriate firmware version for your needs:

   

2. Refer to the Flash Firmware Flashing and Erasing Tutorial to complete the firmware flashing.

2. Flashing with ESP-IDF Environment​

2.1 Download the Project from XiaoZhi GitHub​

Visit the XiaoZhi AI Chatbot repository to download the complete project code:

2.2 Environment Setup​

Refer to the ESP-IDF Environment Setup Tutorial to configure the development environment.

2.3 Configuration and Compilation​

1. Click  to select the target device. Choose the chip model corresponding to your development board (e.g., esp32s3):

   

   TIP

   When setting the target device, ESP-IDF will automatically configure the corresponding toolchain and libraries. This process may take some time, please be patient. For more details, please refer to the Official Documentation.

2. Click  to open the ESP-IDF terminal, then execute the command idf.py menuconfig to enter the configuration interface. Select Xiaozhi Assistant:

   

3. Select Board Type to choose the development board type:

   

4. Choose the product model corresponding to your development board:

   

5. Press the S key to save the configuration and exit. Then click the  to automatically complete compilation, flashing, and serial monitoring.

2.4 Start Network Provisioning​

1. Connect your phone or computer to the device's Wi-Fi hotspot: Xiaozhi-xxxxxx. After successful connection, the configuration page should automatically pop up. If not, manually open a browser and visit http://192.168.4.1.

2. On the network configuration page, select the Wi-Fi name you want to connect to (only 2.4G band is supported; to connect to an iPhone hotspot, enable Max Compatibility in your phone's system settings). The SSID will be auto-filled. Enter the password and click Connect to start connecting:

   

2.5 Add a New Device to the Management Console​

1. Ensure the device has successfully connected to the Internet. The device will then broadcast a 6-digit device verification code (you can wake the device again to replay the code).

2. Visit the XiaoZhi AI Console. If you haven't registered, complete the registration and log in:

   

   

   

3. Enter the 6-digit verification code. The device will automatically activate and appear on the Device Management page, ready for normal use.

4. Say the wake word "Hello XiaoZhi" to wake the device and start voice conversations.

5. ESP32-S3-Touch-AMOLED-1.8 Button Instructions:

   • BOOT button: Press to wake XiaoZhi
   • PWR button: Short press to power on; long press for more than 6 seconds to power off

   

3. XiaoZhi Resources​

• XiaoZhi AI Chatbot Encyclopedia
• XiaoZhi AI Chatbot FAQ

This chapter contains the following sections. Please read as needed:

• Arduino Getting Started
• Setting Up Development Environment
• Demo

Arduino Getting Started​

New to Arduino ESP32 development and looking for a quick start? We have prepared a comprehensive Getting Started Tutorial for you.

• Section 0: Getting to Know ESP32
• Section 1: Installing and Configuring Arduino IDE
• Section 2: Arduino Basics
• Section 3: Digital Output/Input
• Section 4: Analog Input
• Section 5: Pulse Width Modulation (PWM)
• Section 6: Serial Communication (UART)
• Section 7: I2C Communication
• Section 8: SPI Communication
• Section 9: Wi-Fi Basics
• Section 10: Web Server
• Section 11: Bluetooth
• Section 12: LVGL GUI Development
• Section 13: Comprehensive Project

Note: This tutorial uses the ESP32-S3-Zero as a reference example, and all hardware code is based on its pinout. Before you start, we recommend checking the pinout of your development board to ensure the pin configuration is correct.

Setting Up Development Environment​

1. Installing and Configuring Arduino IDE​

Please refer to the tutorial Installing and Configuring Arduino IDE to download and install the Arduino IDE and add ESP32 support.

2. Installing Libraries​

To run the demo, you need to install the corresponding library. The example code uses the GFX Library for Arduino library to drive the ST7789 display and the SensorLib library to drive the CST816 touch controller.

You can click this link to download the demo package for the ESP32-S3-Touch-LCD-1.54 development board. The Arduino\libraries directory within this package contains all the necessary library files required for this tutorial.

Installation Steps:

1. Unzip the downloaded demo package.

2. Copy all folders (ESP32-audioI2S-master, GFX_Library_for_Arduino, etc.) from its Arduino\libraries directory to the Arduino libraries folder.

   INFO

   The path to the Arduino libraries folder is typically: c:\Users\<username>\Documents\Arduino\libraries.

   You can also locate it in the Arduino IDE by going to File > Preferences and checking the "Sketchbook location". The libraries folder is the libraries subfolder within this path.

3. For other installation methods, please refer to: Arduino Library Management Tutorial.

ESP32-S3-Touch-LCD-1.54 Board Installation Instructions

3. Other Tips​

You need to select and configure the development board for ESP32-S3-Touch-LCD-1.54.

1. The ESP32-S3-Touch-LCD-1.54 requires selecting ESP32S3 Dev Module

2. Select the USB port

3. The ESP32-S3-Touch-LCD-1.54 uses the ESP32-S3 native USB interface, not UART-to-USB. For serial communication:

   • The printf() function can be used directly;

   • To use the Serial.println() function, additional configuration is required: Enable the "USB CDC On Boot" option in the IDE's Tools menu, or declare an HWCDC object in your code to handle USB serial communication.

4. Select 16MB Flash

5. Select a Partition Table of the appropriate size

Demo​

The Arduino demos are located in the Arduino/examples directory of the demo package.

01_audio_out​

This demo demonstrates the ESP32-S3-Touch-LCD-1.54 reading an audio file from the TF card and playing it through the speaker. The screen remains blank. It supports formats like MP3, AAC, and WAV.

Code​

Code Analysis​

• Initialize the TF card:

    if (!SD_MMC.setPins(clk, cmd, d0, d1, d2, d3)) {
    Serial.println("Pin change failed!");
    return;
  }
  if (!SD_MMC.begin()) {
    Serial.println("Card Mount Failed");
    return;
  }
  

• Set I2S pins and volume:

  audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT,I2S_MCLK);
  audio.setVolume(21);  // 0...21
  

• Set the audio file to play:

  audio.connecttoFS(SD_MMC, "music/1.mp3");
  

Operation Result​

• The device will play auido directly without showing content on the screen

02_button_example​

• This demo demonstrates how to use the OneButton library to read button states such as single click, double click, and long press, and print them via the serial monitor.

Code​

Code Analysis​

• Bind callback functions:

  button1.attachClick(click1);
  button1.attachDoubleClick(doubleclick1);
  button1.attachLongPressStart(longPressStart1);
  button1.attachLongPressStop(longPressStop1);
  button1.attachDuringLongPress(longPress1);
  

Operation Result​

• The screen shows no output
• Button information is printed to the serial monitor
  

03_qmi8658_example​

This demo the ESP32-S3-LCD-1.54 to obtain data from the onboard QMI8658 and print it via the serial monitor.

Code​

Code Analysis​

• Initialize QMI8658:

   if (!qmi.begin(Wire, QMI8658_L_SLAVE_ADDRESS, SENSOR_SDA, SENSOR_SCL)) {
        Serial.println("Failed to find QMI8658 - check your wiring!");
        while (1) {
            delay(1000);
        }
    }
  

Operation Result​

• The screen shows no output
• Opening the serial monitor shows printed accelerometer and gyroscope data for the x, y, and z axes
  

04_gfx_helloworld​

This demo demonstratesthe ESP32-S3-Touch-LCD-1.54 using the GFX_Library_for_Arduino to drive the screen and display "HelloWorld".

Code​

Code Analysis​

• Configure the screen interface and screen resolution, etc.

  Arduino_DataBus *bus = new Arduino_ESP32SPI(45 /* DC */, 21 /* CS */, 38 /* SCK */, 39 /* MOSI */, -1 /* MISO */);
  Arduino_GFX *gfx = new Arduino_ST7789(
  bus, 40 /* RST */, 0 /* rotation */, true, 240, 240);
  

Operation Result​

• The screen displays as follows:
  

05_esp_wifi_analyzer​

This demo demonstrates the ESP32-S3-Touch-LCD-1.54 using the GFX_Library_for_Arduino to display WiFi channel signal strength.

Code​

Operation Result​

• The screen displays as follows:
  

06_gfx_u8g2_font​

This demo demonstrates the ESP32-S3-Touch-LCD-1.54 using the GFX_Library_for_Arduino to display text in various languages by loading fonts.

Code​

Operation Result​

• The screen displays as follows:
  

07_sd_card_test​

This demo uses the ESP32-S3-Touch-LCD-1.54 to test the TF card read/write functionality.

Code​

Code Analysis​

• TF card initialization:

  if (!SD_MMC.setPins(clk, cmd, d0, d1, d2, d3)) {
      Serial.println("Pin change failed!");
      return;
    }
    if (!SD_MMC.begin()) {
      Serial.println("Card Mount Failed");
      return;
    }
  

Operation Result​

• The screen shows no output
• Open the serial monitor
  

08_lvgl_example_v8​

This demo demonstrates running an lvgl (v8.4.0) example program on the ESP32-S3-Touch-LCD-1.54.

It is required to install lvgl v8.4.0 version. If you have installed other version, please reinstall.

Code​

Operation Result​

• The screen displays as follows:
  

09_lvgl_example_v9​

This demo demonstrates running an lvgl (v9.3.0) example program on the ESP32-S3-Touch-LCD-1.54.

It is required to install lvgl v9.3.0 version. If you have installed other version, please reinstall.

Code​

Operation Result​

• The screen displays as follows:
  

10_esp_sr​

This demo demonstrates running the ESP_SR example program on the ESP32-S3-LCD-1.54.

Preparation​

• Arduino project parameter settings, Partition Scheme: "ESP SR 16M (3MB APP/7MB SPIFFS/2.9MB MODEL)"

Code​

Code Analysis​

• Initialize ES7210 and I2S interface

  Wire.begin(I2C_PIN_SDA, I2C_PIN_SCL);
  es7210_init();
  i2s.setPins(I2S_PIN_BCK, I2S_PIN_WS, I2S_PIN_DOUT, I2S_PIN_DIN, I2S_PIN_MCK);
  i2s.setTimeout(1000);
  i2s.begin(I2S_MODE_STD, 16000, I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO);
  
• Initialize ESP_SR

  ESP_SR.onEvent(onSrEvent);
  ESP_SR.begin(i2s, sr_commands, sizeof(sr_commands) / sizeof(sr_cmd_t), SR_CHANNELS_STEREO, SR_MODE_WAKEWORD);
  
• Voice recognition command setup, generating voice control commands

      static const sr_cmd_t sr_commands[] = {
      { 0, "Turn on the light", "TkN nN jc LiT" },
      { 0, "Switch on the light", "SWgp nN jc LiT" },
      { 1, "Turn off the light", "TkN eF jc LiT" },
      { 1, "Switch off the light", "SWgp eF jc LiT" },
      { 1, "Go dark", "Gb DnRK" },
      { 2, "Start fan", "STnRT FaN" },
      { 3, "Stop fan", "STnP FaN" },
    };
  

Operation Result​

• The device wake word is "Hi ESP”
• After wake-up, operations can be performed using voice recognition commands.
  

This chapter contains the following sections. Please read as needed:

• ESP-IDF Getting Started
• Setting Up Development Environment
• Demo

ESP-IDF Getting Started​

New to ESP32 ESP-IDF development and looking to get started quickly? We have prepared a general Getting Started Tutorial for you.

• Section 1: Environment Setup
• Section 2: Running Examples
• Section 3: Creating a Project
• Section 4: Using Components
• Section 5: Debugging
• Section 6: FreeRTOS
• Section 7: Peripherals
• Section 8: Wi-Fi Programming
• Section 9: BLE Programming

Please Note: This tutorial uses the ESP32-S3-Zero as a teaching example, and all hardware code is based on its pinout. Before you start, it is recommended that you check the pinout of your development board to ensure the pin configuration is correct.

Setting Up Development Environment​

Install the ESP-IDF Development Environment​

1. Download the installation manager from the ESP-IDF Installation Manager page. This is Espressif's latest cross-platform installer. The following steps demonstrate how to use its offline installation feature.

   Click the Offline Installer tab on the page, then select Windows as the operating system and choose your desired version from the filter bar.

   

   After confirming your selection, click the download button. The browser will automatically download two files: the ESP-IDF Offline Package (.zst) and the ESP-IDF Installer (.exe).

   

   Please wait for both files to finish downloading.

2. Once the download is complete, double-click to run the ESP-IDF Installer (eim-gui-windows-x64.exe).

   The installer will automatically detect if the offline package exists in the same directory. Click Install from archive.

   

   Next, select the installation path. We recommend using the default path. If you need to customize it, ensure the path does not contain Chinese characters or spaces. Click Start installation to proceed.

   

3. When you see the following screen, the ESP-IDF installation is successful.

   

4. We recommend installing the drivers as well. Click Finish installation, then select Install driver.

   

Install Visual Studio Code and the ESP-IDF Extension​

1. Download and install Visual Studio Code.

2. During installation, it is recommended to check Add "Open with Code" action to Windows Explorer file context menu to facilitate opening project folders quickly.

3. In VS Code, click the Extensions icon  in the Activity Bar on the side (or use the shortcut Ctrl + Shift + X) to open the Extensions view.

4. Enter ESP-IDF in the search box, locate the ESP-IDF extension, and click Install.

   

5. For ESP-IDF extension versions ≥ 2.0, the extension will automatically detect and recognize the ESP-IDF environment installed in the previous steps, requiring no manual configuration.

Demo​

The ESP-IDF demos are located in the ESP-IDF directory of the demo package.

01_factory​

This demo is a comprehensive demo of ESP32-Touch-LCD-1.54, which is also the default demo flashed at factory

Hardware Connection​

• Connect the development board to the computer

Operation Result​

• The first page cycles through the colors red, green, and blue
• The second page displays development board information
• The third page shows the data read from the IMU
• The fourth page shows the IP address of the connected Wi-Fi (if not connected or connection fails, it displays 0.0.0.0) and the discovered Wi-Fi networks

Specific Operations​

• Press and hold the left button, the speaker will play the sound captured by the microphone in real time
• Double-click the middle button to turn off the screen; double-click again to restore the display
• When powered by battery, long press the middle button to power on; long press again and release to power off
• Click the left or right button to switch pages

02_button_example​

This example demonstrates how to use the espressif/button library to read button states such as single click, double click, and long press, and print them via serial port.

Hardware Connection​

• Connect the development board to the computer

Code Analysis​

• Bind callback functions:

    ret = iot_button_register_cb(boot_btn, BUTTON_PRESS_DOWN, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_PRESS_UP, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_PRESS_REPEAT, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_PRESS_REPEAT_DONE, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_SINGLE_CLICK, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_DOUBLE_CLICK, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_LONG_PRESS_START, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_LONG_PRESS_HOLD, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_LONG_PRESS_UP, NULL, button_event_cb, NULL);
    ret |= iot_button_register_cb(boot_btn, BUTTON_PRESS_END, NULL, button_event_cb, NULL);
  

Operation Result​

• The screen shows no output
• Open the serial debugging tool; button information is printed to the serial port
  

03_qmi8658_example​

This demo demonstrates how to use the sensorlib library to read data from the qmi8658 and print it.

Hardware Connection​

• Connect the development board to the computer

Code Analysis

• Read Accelerometer, Gyroscope, and Timestamp data from the qmi8658

    if (qmi.getDataReady())
  {
    if (qmi.getAccelerometer(acc.x, acc.y, acc.z))
    {
      printf("ACCEL--x:%5.2f y:%5.2f z:%5.2f  ", acc.x, acc.y, acc.z);
    }
  
    if (qmi.getGyroscope(gyr.x, gyr.y, gyr.z))
    {
      printf("GYRO--x:%5.2f y:%5.2f z:%5.2f  ", gyr.x, gyr.y, gyr.z);
    }
    printf("Temperature:%5.2f degrees C", qmi.getTemperature_C());
  }
  printf("Timestamp:%ld \r\n", qmi.getTimestamp());
  

Operation Result​

• The screen shows no output
• Open the serial debugging tool; qmi8658 data information is printed to the serial port
  

04_sd_card_test​

This demo uses the ESP32-S3-Touch-LCD-1.54 to test the TF card read/write functionality.

Hardware Connection​

• Insert the TF card into the card slot (TF card needs to be formatted as FAT32)
• Connect the development board to the computer

Code Analysis​

• Initialize and mount the TF card:

    sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
  #if EXAMPLE_IS_UHS1
      slot_config.flags |= SDMMC_SLOT_FLAG_UHS1;
  #endif
  
      // Set bus width to use:
  #ifdef CONFIG_EXAMPLE_SDMMC_BUS_WIDTH_4
      slot_config.width = 4;
  #else
      slot_config.width = 1;
  #endif
  
      // On chips where the GPIOs used for the TF card can be configured, set them in
      // the slot_config structure:
  #ifdef CONFIG_SOC_SDMMC_USE_GPIO_MATRIX
      slot_config.clk = CONFIG_EXAMPLE_PIN_CLK;
      slot_config.cmd = CONFIG_EXAMPLE_PIN_CMD;
      slot_config.d0 = CONFIG_EXAMPLE_PIN_D0;
  #ifdef CONFIG_EXAMPLE_SDMMC_BUS_WIDTH_4
      slot_config.d1 = CONFIG_EXAMPLE_PIN_D1;
      slot_config.d2 = CONFIG_EXAMPLE_PIN_D2;
      slot_config.d3 = CONFIG_EXAMPLE_PIN_D3;
  #endif // CONFIG_EXAMPLE_SDMMC_BUS_WIDTH_4
  #endif  // CONFIG_SOC_SDMMC_USE_GPIO_MATRIX
  
      // Enable internal pullups on enabled pins. The internal pullups
      // are insufficient however, please make sure 10k external pullups are
      // connected on the bus. This is for debug / example purpose only.
      slot_config.flags |= SDMMC_SLOT_FLAG_INTERNAL_PULLUP;
  
      ESP_LOGI(TAG, "Mounting filesystem");
      ret = esp_vfs_fat_sdmmc_mount(mount_point, &host, &slot_config, &mount_config, &card);
  

Operation Result​

• The screen shows no output
• Open the serial debugging tool; TF card information is printed to the serial port
  

05_lvgl_example​

This demo demonstrates running an lvgl example program on the ESP32-S3-Touch-LCD-1.54 (supports lvgl v8 and lvgl v9).

• The default LVGL version used is v9.3.0. To change the version, modify the LVGL configuration in the main/idf_component.yml file, for example, change it to lvgl/lvgl:^8.4.0.
  

Hardware Connection​

• Connect the development board to the computer

Code Analysis​

• Initialize:

     /* LCD HW initialization */
    ESP_ERROR_CHECK(app_lcd_init());
  
    /* Touch initialization */
    app_touch_init();
  
    /* LVGL initialization */
    ESP_ERROR_CHECK(app_lvgl_init());
  

Operation Result​

1. Hardware Resources​

Development Board Design Files

• Schematic Diagram: ESP32-S3-Touch-LCD-1.54.pdf

2. Technical Manuals​

• Official ESP32-S3 Chip Manuals

  • Datasheets
  • Technical Manuals

• Onboard Component Datasheets

  • ES8311 Datasheet
  • ES8311 User Manual
  • ES7210 Datasheet
  • CST816T Datasheet
  • CST816T Register Description
  • ST7789V2 Datasheet
  • QMI8658 Datasheet

3. Demo​

• ESP32-S3-LCD-1.54 Demo
• ESP32-S3-Touch-LCD-1.54 Demo
• ESP32-S3-Touch-LCD-1.54 Demo (Github)

4. Software Tools​

• Arduino:
  • Arduino IDE Official Download Link
• VScode:
  • VScode Official Download Link
• Debugging Tools:
  • Serial Port Debug Assistant
• Firmware Flashing Tool:
  • Flash_download_tool
• Other Resource Links:
  • ESP32-Arduino Official Documentation
  • ESP32-Arduino Official Resources
  • ESP-IDF Official Resources
  • MicroPython Official Documentation

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