1. Fampidirana
This manual provides detailed instructions for the setup, operation, and maintenance of the waveshare ESP32-S3 1.8inch Knob Display Development Board. This high-performance, highly integrated MCU board is designed for various interactive applications, featuring an ESP32-S3 dual-core processor, a 1.8-inch capacitive touch display, and extensive wireless connectivity options.

Sary 1.1: Eo anoloana view of the waveshare ESP32-S3 1.8inch Knob Display Development Board, showcasing its circular display and blue textured knob.
2. Ny votoatin'ny fonosana
Hamarino fa ny entana rehetra voatanisa etsy ambany dia tafiditra ao anatin'ny fonosanao. Raha misy zavatra tsy hita na simba dia mifandraisa amin'ny fanohanana ny mpanjifa.
- ESP32-S3-Knob-Touch-LCD-1.8-EN × 1
- Fonony aoriana × 1

Image 2.1: The package includes the ESP32-S3 Knob Display Development Board and a separate back cover.
3. Endri-javatra fototra
The waveshare ESP32-S3 1.8inch Knob Display Development Board offers a range of advanced features:
- Ecran tactile capacitive 1.8-inch: Provides excellent touch sensitivity for interactive applications.
- ESP32-S3 Chip: High-performance dual-core processing with hardware support for AI and machine learning tasks.
- Fifandraisana tsy misy tariby roa sosona: Integrated Wi-Fi and Bluetooth 5.0 for seamless IoT and remote control applications.
- Audio and Voice Integration: Equipped with an audio decoder and microphone for voice recognition and audio playback.
- Famatsiana herinaratra malefaka: Can be powered via USB Type-C or a 3.7V lithium battery.
- CNC Process Metal Case: Maharitra sady mahafinaritra ny masoasing enclosure.

Image 3.1: Visual representation of the board highlighting its multi-functional knob screen, wireless connection, and CNC metal case, along with icons for Pomodoro Timer, Bluetooth, Volume Control, Video Playback, Digital Photo Frame, AIDA64 Wireless Aux Display, Audio Spectrum, E-book, and CNC Process.
4. Famaritana ara-teknika
Detailed technical specifications for the ESP32-S3 1.8inch Knob Display Development Board:
| endri-javatra | antsipirihany |
|---|---|
| Display Panel | IPS |
| Haben'ny fampisehoana | 1.8 santimetatra |
| vahaolana | 360 × 360 |
| Loko aseho | 262K |
| ny famirapiratry ny mazava | 600cd/m² |
| Contrast Ratio | 1200:1 |
| Fifandraisana Interface | QSPI |
| IC mpamily | ST77916 |
| Karazana mikasika | Capacitive |
| Touch IC | CST816 |
| Wireless fifandraisana | 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) |
| Flash Memory | 16MB |
| PSRAM | 8MB |
| teny | Audio decoder chip, microphone |
| Herin'aratra | USB Type-C or 3.7V Lithium Battery |

Image 4.1: A visual table detailing the LCD specifications and examples of application scenarios for the development board.
5. Toe-javatra fampiharana
The versatility of the ESP32-S3 Knob Display Development Board allows for a wide range of applications:
- Output maro: Can function as an information output unit for both display and audio, enabling rich interaction in image and sound.
- Human-machine Interface (HMI): Serves as a medium for interaction and information exchange between the system and the user.
- Fampidirana marobe: Supports touch and voice recognition, allowing for custom equipment control projects.
- LVGL GUI Development: Utilizes the LVGL open-source graphics library for creating embedded GUIs with visual effects and low memory requirements.
6. Fametrahana voalohany
To begin using your waveshare ESP32-S3 1.8inch Knob Display Development Board, follow these general steps:
- Fampifandraisana herinaratra: Connect the board to a power source using a USB Type-C cable. Alternatively, if using a 3.7V lithium battery, ensure it is properly connected to the battery header.
- Software Environment: Set up your development environment. This typically involves installing the ESP-IDF (Espressif IoT Development Framework) or Arduino IDE with ESP32 board support.
- Fametrahana mpamily: Install necessary USB-to-UART drivers for your operating system to enable communication with the board.
- Firmware Upload: Upload your desired firmware or example code to the board via the USB Type-C port. Refer to the official Waveshare Wiki for detailed programming guides and examples.
- Fitsapana voalohany: After uploading, the display should power on and show the programmed interface. Test the knob and touch functionalities.
For detailed programming instructions and resources, please visit the Waveshare Wiki.
7. Torolàlana miasa
The ESP32-S3 Knob Display Development Board is designed for intuitive interaction. Its primary control mechanisms include the rotary knob and the capacitive touchscreen.
7.1. Smart Rotary Knob and Touch Display
The integrated rotary knob and touch display allow for versatile control and interaction:
- Fanaraha-maso intuitive: Rotate the knob to navigate menus, adjust values, or scroll through content. The capacitive touch screen allows for direct interaction with on-screen elements.
- Pomodoro Timer Themes: Supports various Pomodoro Timer themes for productivity and playful applications.

Image 7.1: Demonstrates the smart rotary knob display in use, showing different interface themes and intuitive control with fingertips.
7.2. Media Playback and Display Functions
- Smartphone Bluetooth Connection for Music Playback: Connect your smartphone via Bluetooth to play music. The board supports audio output via a 3.5mm jack. You can upload lyrics and covers, and control volume by sliding the knob.
Note: The product does not have a built-in speaker. An external speaker must be connected via the 3.5mm audio jack for music playback.
- Seamless Left-Right Swipe: Utilize swipe gestures to switch between photos or videos, functioning as a digital photo frame or video player.
- Famakiana e-boky: Supports TXT file reading, allowing you to swipe through stories directly on the display.

Image 7.2: Illustrates the precision-machined CNC metal case and the board's capability to connect to a smartphone via Bluetooth for music playback, requiring an external speaker.

Image 7.3: Shows the left-right swipe functionality for switching between video playback and digital photo frames, and the display reading a text file.
7.3. PC Integration
- PC Secondary Screen: Can be used to display CPU and GPU parameters for real-time data monitoring.
- Fanaraha-maso ny feo amin'ny alalan'ny Bluetooth amin'ny PC: Connect to your PC via Bluetooth to smoothly adjust movie and music volume using the rotary knob.

Image 7.4: Depicts the board functioning as a secondary PC screen for monitoring system parameters and controlling PC volume via Bluetooth.
7.4. Audio Visualization and Setup
- Real-Time Audio Visualization: The built-in microphone captures surrounding sounds and transforms them into a real-time spectrum displayed on the screen.
- Easy Setup with Multiple Functions: Supports backlight adjustment via the knob and easy switching between Chinese and English display modes.

Image 7.5: Shows the real-time audio spectrum visualization feature and the ease of adjusting backlight and switching languages using the knob.
8. Board Components Overview
Understanding the components of the development board is crucial for advanced usage and troubleshooting.

Image 8.1: An annotated diagram showing the internal components of the board, including the ESP32-S3R8, ESP32-U4WDH, PCM5100A, USB to UART, 16MB Flash, Dual encoder, TF card slot, DRV2605, CH445P, Digital MIC, Ceramic antenna, and PH1.27 10P SMD Connector.
Ny singa fototra sy ny asany:
- Vibration maotera: Manome valin-kafatra haptic.
- Lohatenin'ny PH1.27 10P SMD: Connector for external components.
- Lohatenin'ny bateria Lithium PH1.25: Mba hampifandraisana ny bateria lithium 3.7V.
- Jack audio 3.5mm: Ho an'ny fampifandraisana ireo fanamafisam-peo na écouteur ivelany.
- Bokotra fahefana: Controls power on/off.
- Type-C mpampitohy: Used for power supply, data transfer (USB to UART), and firmware uploading. Supports switching between ESP32-S3 USB or ESP32 UART based on Type-C plug orientation.
- Bokotra ESP32-S3R8 BOOT: Press and power on again to enter download mode for firmware updates.
- ESP32-S3R8: Wi-Fi sy Bluetooth SoC, matetika miasa 240MHz, miaraka amin'ny PSRAM 8MB.
- ESP32-U4WDH: Wi-Fi sy Classic Bluetooth, miasa amin'ny matetika 240MHz, miaraka amin'ny Flash 4MB.
- PCM5100A: DAC stereo avo lenta miaraka amin'ny interface I2S.
- USB mankany UART: Ho an'ny fifandraisana serial.
- 16MB Flash: Storage for firmware and data.
- Encoder roa sosona: For ESP32-S3 and ESP32 respectively, likely referring to the rotary knob's encoder.
- TF karatra slot: Ho an'ny fitahirizana azo mivelatra.
- DRV2605: Mpamily motera hovitrovitra miaraka amin'ny interface I2C.
- CH445P: IC switch analog ambany fanoherana 4-SPDT 3.3V.
- MIC nomerika: For audio input and voice recognition.
- Antena seramika: Ho an'ny fifandraisana an-tariby.
9. Outline Dimensions
The physical dimensions of the waveshare ESP32-S3 1.8inch Knob Display Development Board are as follows:

Image 9.1: Technical drawing showing the top and side view dimensions of the board, with a diameter of 66.00 mm and a height of 22.00 mm.
- Savaivony: 66.00 mm
- Haavo: 22.00 mm
10. Fikojakojana
Proper maintenance ensures the longevity and optimal performance of your development board:
- Fanadiovana: Mampiasà lamba malefaka sy maina hanadiovana ny efijery syasing. Halaviro ny mpanadio na solvents.
- fitahirizana: Store the board in a cool, dry environment, away from direct sunlight and extreme temperatures.
- Fikarakarana: Handle the board with care to avoid physical damage to components or the display.
- Fanavaozana ny mikirao praogramanao: Regularly check the Waveshare Wiki for firmware updates to ensure you have the latest features and bug fixes.
11. Famahana olana
If you encounter issues with your ESP32-S3 Knob Display Development Board, refer to the following common problems and solutions:
| OLANA | Antony mety / Vahaolana |
|---|---|
| Tsy mandeha ny solaitrabe. |
|
| Tsy misy na inona na inona ny fampisehoana. |
|
| Cannot upload firmware. |
|
| Bluetooth or Wi-Fi not connecting. |
|
| Knob or touch input not working. |
|
For more advanced troubleshooting and community support, please refer to the official Waveshare Wiki or contact Waveshare technical support.
12. Warranty sy fanohanana
Waveshare products typically come with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Waveshare website.
For technical support, additional resources, and community forums, please visit the official Waveshare Wiki:
https://www.waveshare.com/wiki/ESP32-S3-Knob-Touch-LCD-1.8-EN
You can also contact Waveshare customer service directly through their official webtranonkala hahazoana fanampiana.





