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The Waveshare ESP32-S3-Touch-LCD-3.49 combines an ESP32-S3R8 dual-core microcontroller with a 3.49 inch IPS capacitive touch display, so you can build a smart interface on one board. The chip is an Xtensa 32-bit LX7 dual-core running up to 240 MHz with 8 MB PSRAM and 16 MB flash, and it offers 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE).
The board adds a dual microphone array with noise reduction and echo cancellation, a QMI8658 6-axis IMU, an RTC, a TF card slot, battery support and a 22-pin expansion header.
The display has a resolution of 172 x 640, 16.7 million colours, a brightness of 350 cd/m2, a contrast ratio of 1200:1, a QSPI interface, an AXS15231B driver and an I2C touch interface. Its slim, wide shape suits dashboards, voice assistants, smart home panels and wearable-style devices.
A battery is not included. You can develop with Arduino or ESP-IDF and use graphics libraries such as LVGL for the interface. Start with Waveshare's examples for the display, touch and microphones, then combine them into your own project.
Makers and developers building small connected devices, voice interfaces or dashboards who want the screen, microphones and sensors already integrated.
Power the board from USB-C, load the demo firmware and try the touch, microphones and IMU examples one by one. Use the TF card for images and logs, and add a battery if you want the device to be portable. If you plan to use Wi-Fi, keep the antenna area clear and avoid covering the module with metal.
An ESP32-S3R8 dual-core up to 240 MHz.
8 MB PSRAM and 16 MB flash.
3.49 inches, 172 x 640, capacitive touch.
Yes, Wi-Fi and Bluetooth 5 (LE).
No.
| Brand | Waveshare |
|---|---|
| Display Resolution | 172x640 |
| Flash Memory | 16MB |
| MCU / Processor | ESP32-S3 |
| Screen Size | 3.49 inch |
| Touch Screen | Capacitive |
| Selling unit | PCS |
