Waveshare ESP32-S3 1.85-inch Round LCD Development Board User Manual

1. Bubuka

This manual provides detailed instructions for the setup, operation, and maintenance of your Waveshare ESP32-S3 1.85-inch Round LCD Development Board. This high-performance board features a dual-core Xtensa LX7 processor, Wi-Fi, Bluetooth BLE 5, and a 360x360 capacitive touch display, making it suitable for various AI speech and smart speaker applications.

2. Eusi Paket

Pastikeun yén sadaya item anu didaptarkeun di handap kalebet kana pakét anjeun:

ESP32-S3-Touch-LCD-1.85C-BOX x1
SH1.0 4PIN cable ~100mm x2

Image showing the Waveshare ESP32-S3-Touch-LCD-1.85C-BOX and two SH1.0 4PIN cables as package contents.

Figure 2.1: Package Contents of the ESP32-S3-Touch-LCD-1.85C-BOX.

3. Fitur Produk

The Waveshare ESP32-S3-Touch-LCD-1.85C is a microcontroller development board designed for advanced applications. It integrates high-capacity Flash and PSRAM, along with a vibrant 1.85-inch LCD display. This board is ideal for rapid development of Human-Machine Interface (HMI) and other ESP32-S3 based projects.

Prosesor Kinerja Tinggi: Equipped with a dual-core Xtensa LX7 processor, operating up to 240MHz.
Konéktipitas nirkabel: Ngarojong Wi-Fi 2.4GHz (802.11 b/g/n) sareng Bluetooth 5 (LE) kalayan anteneu internal.
Mémori & Panyimpenan: Features 512KB SRAM, 384KB ROM, 16MB Flash, and 8MB PSRAM.
Display & Touch: 1.85-inch LCD with 360x360 resolution and 262K colors, offering smooth GUI program execution. Capacitive touch control is supported via I2C with interrupt support.
Beunghar périferal: Includes an audio decoder, microphone, RTC sensor, TF card slot, and battery management capabilities.
Kontrol fléksibel: Supports accurate control functions such as flexible clock and multiple power modes for low power consumption.

Image illustrating the key features of the ESP32-S3 1.85-inch Round Display Development Board, including dual-core processor, Wi-Fi, BLE 5, audio playback, mic recognition, RTC clock, TF card, 1.85-inch display, 360x360 resolution, 262K color, 16MB flash, high-power speaker, lithium battery header, RTC battery header, and multiple interfaces.

Gambar 3.1: Leuwihview of Product Features.

4. Panganteur Interface

The board provides various interfaces for connectivity and expansion. Understanding these interfaces is crucial for proper integration and development.

Diagram showing the various interfaces and components on the Waveshare ESP32-S3-Touch-LCD-1.85C board, including LCD BOOT, I2C header, Type-C port, Speaker box, Battery power supply ON/OFF, UART header, TF card slot, Microphone, and internal components like ESP32-S3R8, Flash, GPIO expander, RTC chip, audio decoder, battery charger, and various connectors.

Gambar 4.1: Detil view of board interfaces and components.

GPIO Pinout

The board supports expansion of multiple peripherals via UART, I2C, and GPIO interfaces. Refer to the pinout diagram for specific connections.

Detailed pinout diagram for the ESP32-S3-Touch-LCD-1.85C, showing GPIO, UART, I2C, EXIO, and USB pins with their corresponding numbers and functions.

Figure 4.2: GPIO Pinout Diagram.

5. Setelan: Pamasangan Batré

This section details the process of installing the battery into your ESP32-S3-Touch-LCD-1.85C-BOX. Please follow these steps carefully.

Open Speaker Cover: Using a screwdriver, gently open the speaker cover located on the bottom of the product.
Unscrew Top Screws: Unscrew the three screws securing the speaker assembly.
Remove Copper Posts: Unscrew the three copper posts located inside the device.
Insert Battery Cable: Carefully insert the battery cable through the designated hole on the board.
Connect Battery Cable: Connect the battery cable to its corresponding port on the board.
Re-screw Copper Posts: Re-screw the copper posts back into their positions.
Affix Battery: The stereo comes with double-sided tape. Remove the sticker from the adhesive side and stick the battery in the correct position, ensuring it is fixed securely. Ensure the battery paste position and the copper post and hole position do not interfere with the subsequent installation of the speaker cover and screws.
Penempatan kabel: Place the battery cable properly in the gap next to the battery to avoid blocking the shell when it is closed, which may affect the fit.
Close Product: Align the parts of the product with the holes of the copper pillars and close the product.
Kencangkeun screws: Tighten the screws that you unscrewed earlier.
Replace Speaker Cover: Finally, put the speaker cover back on.

Video 5.1: Battery Installation Tutorial for ESP32-S3-Touch-LCD-1.85C-BOX. This video demonstrates the step-by-step process of installing the battery, including opening the device, connecting the battery, and reassembling the unit.

6. Parentah Operasi

6.1. Display and Touch Control

The 1.85-inch round LCD provides excellent display performance with 262K colors and a 360x360 resolution, offering a wide viewing angle. The capacitive touch screen allows for intuitive interaction.

Image showing the excellent display performance with wide viewing angles and responsive capacitive touch functionality on the round LCD screen, demonstrating a music player interface.

Figure 6.1: Display Performance and Capacitive Touch.

6.2. Onboard Audio Input/Output

The device supports high-quality audio processing, providing clear input and output. It is equipped with an offline voice model to enable device control via customizable shortcut commands.

Input Audio: Utilize the integrated microphone for voice commands and recording.
Puteran Audio: The high-power speaker allows for clear audio output.
Paréntah sora: Examples include "Turn on the backlight", "Turn off the backlight", "Backlight is brightest", and "Backlight is darkest".

Image demonstrating onboard audio input and output capabilities, showing voice commands for backlight control and music playback through the device's speaker.

Figure 6.2: Audio Input and Output Functionality.

6.3. AI Speech Interaction

The ESP32-S3 board allows access to online large model platforms such as GPT, DeepSeek, and Doubao for advanced AI speech interaction. This enables conversational interfaces and intelligent responses.

Image illustrating AI speech interaction, showing a user holding the device with a smiley face on the screen, and a diagram depicting the device sending data to a large model platform for analysis and receiving replies via its built-in microphone and speaker.

Figure 6.3: AI Speech Interaction Capabilities.

7. Skenario Aplikasi

The versatility of the ESP32-S3-Touch-LCD-1.85C allows for a wide range of applications:

Sababaraha Kaluaran: Can be used as an information output unit in both display and audio, allowing users to design projects requiring information interaction in image and audio formats.
Sababaraha Input: Supports touch, button, and voice recognition inputs, enabling users to control equipment through various methods.
Antarmuka Manusa-Mesin (HMI): Serves as a medium for information and interaction exchange between the system and the user, facilitating intuitive control and feedback.
LVGL GUI Development: Ideal for developing embedded GUIs using LVGL, a free, open-source graphics library that provides easy-to-use graphical elements with beautiful visual effects and low memory requirements.

Image depicting various application scenarios including multiple outputs (display and audio), multiple inputs (touch, button, voice), human-machine interface, and LVGL GUI development.

Figure 7.1: Potential Application Scenarios.

8. Spésifikasi

Fitur	Rincian
Prosesor	Dual-core Xtensa LX7, up to 240 MHz
Konéktipitas Wireless	Wi-Fi 2.4GHz (802.11 b/g/n), Bluetooth 5 (LE)
Mémori	SRAM 512KB, ROM 384KB, Flash 16MB, PSRAM 8MB
tampilan	1.85-inch LCD, 360x360 resolution, 262K color, Capacitive Touch (I2C)
Audio	Audio decoder, Microphone, High-power speaker
Periferal séjén	RTC sensor, TF card slot, Battery management
Item Beurat	4.9 ons
Ukuran Paket	4.49 x 3.7 x 2.76 inci
Ngaran modél	ESP32-S3-Touch-LCD-1.85C-BOX-EN

9. Diménsi Garis Besar

Refer to the diagrams below for the physical dimensions of the ESP32-S3-Touch-LCD-1.85C, both in its standard version and with the speaker box.

Diagram showing the outline dimensions of the standard version of the ESP32-S3-Touch-LCD-1.85C, including top, bottom, and side views kalayan ukuran dina milimeter.

Figure 9.1: Standard Version Dimensions.

Diagram showing the outline dimensions of the ESP32-S3-Touch-LCD-1.85C with the speaker box, including top, bottom, and side views kalayan ukuran dina milimeter.

Figure 9.2: Dimensions with Speaker Box Version.

10. Cara ngungkulan

If you encounter issues with your Waveshare ESP32-S3 Development Board, consider the following general troubleshooting steps:

Masalah kakuatan: Ensure the battery is correctly installed and charged, or that the device is properly connected to a power source via the USB Type-C port.
Tampilan Teu Gawé: Check all connections to the LCD. If the display shows garbage, verify your software configuration and ensure the correct drivers are installed.
Masalah Konektipitas (Wi-Fi/Bluetooth): Confirm that the onboard antenna is not obstructed and that your code correctly initializes and uses the wireless modules.
Audio Malfunctions: Verify microphone and speaker connections. Ensure audio drivers and configurations in your software are correct.
Parangkat lunak / Firmware: Refer to the official Waveshare Wiki for the latest documentation, example code, and firmware updates. Ensure you are using compatible ESP-IDF versions if developing with Espressif tools.
Ruksakna Fisik: Inspect the board for any visible damage or loose connections.

For more specific issues, consult the Waveshare Wiki resources or contact technical support.

11. Garansi jeung Rojongan

Waveshare products are designed for reliability and performance. For detailed warranty information, please refer to the official Waveshare websitus atanapi dokuméntasi anu kalebet dina pameseran anjeun.

For technical support, resources, and community forums, visit the official Waveshare Wiki:

Waveshare Official Wiki

You can also contact Waveshare customer service for assistance with product inquiries or issues.

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waveshare ESP32-S3-Touch-LCD-1.85C