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Rectangular development board with 3.49 inch colour touchscreen display

LORDWORLD

LORDWORLD ESP32-S3 Development Board 3.49inch 172 × 640 16.7M Color QSPI Touch LCD

SKU CH-QKSZ-WEFC3

ESP32-S3 board with 3.49 inch 172 × 640 16.7M colour QSPI touch LCD, onboard audio codec, AI speech interaction and offline voice control

  • 49 inch IPS display shows 16.7 million colours at 172 × 640 resolution
  • Capacitive touch enables direct on-screen control for smart-device prototypes
  • Onboard audio codec delivers clear input and output for voice applications
  • Offline voice control and AI interaction with platforms such as DeepSeek and Doubao
  • ESP-IDF and Arduino IDE support with full SDK and tutorials for rapid development

ESP32-S3 Development Board with 3.49 inch Touch LCD

This development board pairs an ESP32-S3 microcontroller with a 3.49 inch IPS capacitive touch display. The 172 × 640 resolution screen renders 16.7M colours over a QSPI interface. Onboard audio codec enables high-quality audio input and output for voice-driven projects. It suits makers building smart devices with AI speech interaction.

QSPI display interface and onboard audio

The display connects through a QSPI bus that limits throughput compared to parallel RGB or MIPI DSI interfaces. Audio processing relies on the integrated codec rather than external I2S peripherals. Offline voice control runs on the ESP32-S3 itself, so complex models need cloud endpoints such as DeepSeek or Doubao. Developers must work within these on-chip resource boundaries.

3.49 inch 172 × 640 capacitive touch screen

The single specification that decides fit is the 3.49 inch capacitive touch LCD at 172 × 640 with 16.7M colour depth. Projects needing a larger panel, higher pixel count, or a different display bus will not match this board. Buyers who want more display area or a parallel interface should look elsewhere.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $71.99
Pricier than about 72% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

Should I choose the 3.49 inch 172 × 640 display or a different size?

This board ships with a fixed 3.49 inch IPS panel at 172 × 640 pixels and 16.7M colour depth; no alternative screen sizes or resolutions are offered for this model.

What does the 172 × 640 resolution look like on the 3.49 inch panel?

The 172 × 640 pixel IPS display fits into a 3.49 inch diagonal, giving a tall, narrow aspect ratio suited to vertical menus, sensor readouts or compact voice-assistant interfaces.

How does the QSPI display interface affect refresh speed?

The LCD connects via QSPI, letting the ESP32-S3 push frame data directly to the panel without an external controller, so graphics and touch updates run at the speed the MCU can sustain.

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