SKU:WSAL33630

ESP32-S3 4.3inch AI Voice Touch Display Development Board, 800 × 480 Resolution, 5-Point Touch, Dual-MIC Array, Supports 2.4GHz Wi-Fi & BLE 5

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

ESP32-S3-Touch-LCD-4.3CStandard version, without case

ESP32-S3-Touch-LCD-4.3C-BOXWith plastic case

Features

TheESP32-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-N16R8The 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 headerMX1.25 2PIN header
10. Batt power supply ON/OFF
11. 3.7V single Lithium Batt MX1.25 header
12. Status IndicatorsDONE: Lithium Batt charging completed indicatorCHG: Lithium Batt charging indicatorPWR: 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 terminalVOUT pin output 5V/3.3V (switching by onboard resistor)
15. 5V output screw terminal
16. Digital output5 ~ 36V, open-drain output, output load: 450mA per channel (MAX)
17. Input signal common terminalNC: dry contact passive inputConnect to power supply positive: digital input low active, for NPN wet contact active input, 5 ~ 36V DCConnect to power supply negative: digital input high active, for PNP wet contact active input, 5 ~ 36V DC
18. Digital input5 ~ 36V, supports passive / active input (NPN or PNP)
19. RTC Batt holderSpecification: 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.

Support Batch Customization

Support software and hardware customizationIncluding hardware interface, LOGO, label, case and web page, etc.

outline dimensions

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

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

Resources & Services

Wiki:docs.waveshare.com/ESP32-S3-Touch-LCD-4.3C

ESP32 Audio LCD Selection

Model	Display				Onboard resources								Peripheral interfaces
	Resolution	Interface	Display	Touch	IMU	RTC	TF	Buzzer	Speaker	MIC	Batt header	Antenna
RGB LCD display
ESP32-S3-Touch-LCD-4.3C	800 × 400	RGB	ST7262	GT911	-	√	√	-	√	√	√	√	I2C \ Wide Voltage IO
AMOLED display
ESP32-S3-Touch-AMOLED-2.06	410 × 502	QSPI	CO5300	FT3168	√	√	√	-	√	√	√	√	I2C, UART, USB pads
ESP32-C6-Touch-AMOLED-2.06	410 × 502	QSPI	CO5300	FT3168	√	√	√	-	√	√	√	√	I2C, UART, USB pads
LCD display
ESP32-S3-Touch-LCD-3.5	320 × 480	SPI	ST7796	FT6336	√	√	√	-	√	√	√	√	32PIN GPIO header, camera interface

Lieferumfang

ESP32-S3-Touch-LCD-4.3C

1. ESP32-S3-Touch-LCD-4.3C (with back wiring 16PIN screw terminal) x1
2. 16PIN screw terminal for bottom wiring x1

1

2

ESP32-S3-Touch-LCD-4.3C-BOX

ESP32-S3-Touch-LCD-4.3C-BOX x1

• Vendor:

  WaveShare

• Tags: Brand_waveshare,  Cat_board,  Cat_communication,  Cat_display,  Cat_expansion,  Cat_iot,  Cat_kit,  Compat_arduino,  Compat_esp32,  Compat_raspberry_pi,  Iface_wifi,  Platform_arduino,  Platform_esp32,  Platform_raspberry_pi,  Sub_bluetooth,  Sub_development_boards,  Sub_esp32_s3,  Sub_lcd_rgb,  Sub_short_range_wireless,  Topic_fpga,  Topic_mcu