ESP32-S3 4.3inch AI Voice
Touch Display Development Board

Integrated Capacitive Touch, High-Definition LCD, And Audio Codec Chip

Supports Audio Output And Recording, Enabling A Smarter Human-Machine Interaction

Version Options

Features

The ESP32-S3-Touch-LCD-4.3C integrates a 4.3inch capacitive touch display and an audio module, supporting AI speech interaction and the LVGL graphical interface. Combining display, touch, and voice in one device, it enables easy development of intelligent human-machine interaction terminals.

• Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
• Built in 512KB Static RAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM
• Onboard 4.3inch capacitive touch display, 800 × 480 resolution, 65K color
• Supports capacitive touch control via I2C interface, 5-point touch with interrupt support
• Onboard ES8311 audio codec chip and ES7210 echo cancellation circuit
• Onboard voltage regulator, supports 7 ~ 36V wide range power supply
• Onboard RTC chip and Batt holder to ensure time data is not lost during power loss when Batt is installed
• Onboard I2C interface, TF card slot, MX1.25 2PIN Batt header, and digital isolated IO interfaces, etc.
• Supports passive and active digital input with bi-directional optocoupler isolation, and the active digital input supports positive and negative voltages
• Supports digital output with optocoupler isolation, provides higher driving capability with up to 450mA sinking current
• Onboard LED indicators for indicating the power and Batt recharging status
• Supports flexible clock, module power supply independent setting and other controls to realize low power consumption in different scenarios

IPS Display Panel

Excellent Display Performance, 160° Wide Viewing Angle

Capacitive 5-Point Touch

Supports Touch Function With I2C Interface, 5-Point Touch For Flexible Operation
And Smooth Multi-Point UI Interaction

Supports AI Speech Interaction

Allows Access To Online Large Model Platforms Such As DeepSeek, Doubao, Etc.

Supports Multiple Peripherals

Supports The Expansion Of Multiple Peripherals Via I2C And Isolated IO Interfaces

Application Scenarios

What's On Board

1. ESP32-S3-WROOM-1-N16R8
   The SoC with Wi-Fi and Bluetooth, up to 240MHz operating frequency, integrated 8MB PSRAM and 16MB Flash
2. TF card slot
3. USB Type-C port
4. BOOT button
   Press and hold while powering on for program burning
5. RESET button
   
6. Optocoupler isolation
7. Touch panel connector
8. 4.3inch display panel connector
9. Speaker header
   MX1.25 2PIN header
10. Batt power supply ON/OFF
11. 3.7V single Lithium Batt MX1.25 header
12. Status Indicators
    DONE: Lithium Batt charging completed indicator
    CHG: Lithium Batt charging indicator
    PWR: Power supply indicator
    (the CHG will blink and the DONE will light on when connecting with DC power supply and without lithium Batt connected or Batt switch is OFF)

 

13. 7 ~ 36V DC power supply terminal
14. I2C port screw terminal
    VOUT pin output 5V/3.3V (switching by onboard resistor)
15. 5V output screw terminal
16. Digital output
    5 ~ 36V, open-drain output, output load: 450mA per channel (MAX)
17. Input signal common terminal
    NC: dry contact passive input
    Connect to power supply positive: digital input low active, for NPN wet contact active input, 5 ~ 36V DC
    Connect to power supply negative: digital input high active, for PNP wet contact active input, 5 ~ 36V DC
18. Digital input
    5 ~ 36V, supports passive / active input (NPN or PNP)
19. RTC Batt holder
    Specification: CR927
20. Microphones

Optional For Dedicated Plastic Case

Supports Installing 60 × 30 × 6 (mm) (L × W × H) Lithium Batt

 

* for reference only, the Lithium Batt is NOT included.

Multiple Installation Methods

* for reference only, the rail bracket, wall bracket and monitor arm are not included.
The mounting hole spacing on the back of the case is 75mm.

Outline Dimensions

ESP32-S3-Touch-LCD-4.3C (without case)

 

ESP32-S3-Touch-LCD-4.3C-BOX (with case)

 

[] ESP32-S3-Touch-LCD-4.3C

[] ESP32-S3-Touch-LCD-4.3C-BOX

To：

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Email(support)

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