




RLX COMPONENTS s.r.o. , Electronic Components Distributor.
RLX COMPONENTS s.r.o. , Electronic Components Distributor.
ESP32-S3 3.97inch e-Paper Dev.Board, 800×480, Wi-Fi / BLE 5, And AI Voice Interaction, Onboard Microphone (WS-33810)
ESP32-S3 3.97inch e-Paper Development Board, 800 × 480 Resolution, Supports Wi-Fi / BLE 5, And AI Voice Interaction, Onboard Microphone
low power, wide viewing angle, paper-like effect without electricity

ESP32-S3-ePaper-3.97-EN
Without Lithium Batt
ESP32-S3-ePaper-3.97
Comes with a MX1.25 3.7V Lithium Batt
EESP32-S3-ePaper-3.97-Kit
Basic kit, equipped with a MX1.25 3.7V Lithium Batt, USB cable, 16GB TF card and card reader
The ESP32-S3-ePaper-3.97 is a high-performance, highly integrated microcontroller development board designed by Waveshare. Equipped with an ESP32-S3 microcontroller, supports dual-mode Wi-Fi and BLE communication. Onboard 3.97inch e-paper display, features ultra-low power consumption and ambient light readability, suitable for portable devices and long-Batt-life scenarios. Integrated with an RTC chip, SHTC3 temperature and humidity sensor, TF card slot, low-power audio codec chip circuit, and Lithium Batt recharge management circuit. It provides a flexible and reliable development platform for IoT terminals, electronic tags, portable displays, and other applications.
| display panel | e-paper display | display color | black, white |
|---|---|---|---|
| Operating voltage | 3.3V | grey scale | 4 |
| Display size | 86.40 × 51.84 (mm) | full refresh time | 3.5s |
| resolution | 800 × 480 pixels | Fast refresh time | 2.8s |
| viewing angle | >170° | partial refresh time | 0.6s |
| Refresh power | <40mW | 4 grayscale refresh time | 3.5s |
Supports high-quality audio processing, providing clear and high-quality
audio input and output
Allows access to online large model platforms such as DeepSeek, Doubao, etc

Adopts 3-way rotary navigation switch design to reduce repetitive tapping during long reading and browsing
Suitable for Voice Interaction and e-Reader, etc
Voice Interaction
E-Reader
Electronic Calendar
Weather Forecast Display
Supports real-time temperature and humidity detection
Supports selecting the corresponding time zone
Comprehensive SDK, dev resources, and tutorials to help you easily get started

Balenie Obsahuje / Package Content