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ESP32-S3 AI 3.97-inch e-Paper Ink Screen 3.97inch Display AIoT Development Board Deepseek

$36.9

Brand:SpotPear
SKU:020812100000
Date:2026-01-27 17:40
No:
In Stock

ESP32-S3 3.97-inch e-ink display development board features an 800 × 480 pixel resolution, supports Wi-Fi and BLE 5, has an onboard microphone, and supports AI voice interaction.

ESP32-S3
3.97-inch e-ink screen development board

Low power consumption, wide viewing angle, and clear display even when power is off.


Version Selection

Product Features

This product is a high-performance, highly integrated microcontroller development board designed by Waveshare. It features an ESP32-S3 microcontroller, supporting both Wi-Fi and BLE dual-mode communication. It has an onboard 3.97-inch e-ink screen with extremely low power consumption and ambient light visibility, making it suitable for portable devices and long-battery-life applications. It integrates an RTC real-time clock, an SHTC3 temperature and humidity sensor, a Micro SD card slot, a low-power audio codec chip, and a power management chip. It provides a flexible and reliable development platform for applications such as IoT terminals, electronic tags, and portable displays.

  • Equipped with a high-performance ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor with a clock speed of up to 240MHz.
  • Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna.
  • It has 512KB of built-in SRAM and 384KB of ROM, with 8MB of PSRAM and 16MB of external Flash memory.
  • It features a 3.97-inch e-ink screen with a resolution of 800 × 480, boasting high contrast and wide viewing angles.
  • An onboard audio codec chip supports voice capture and playback, facilitating the implementation of AI voice interaction applications.
  • The onboard QMI8658 six-axis inertial measurement unit (3-axis accelerometer, 3-axis gyroscope) can detect motion posture, count steps, and perform other functions.
  • The onboard PCF85063 RTC real-time clock and SHTC3 temperature and humidity sensor enable precise RTC time management and temperature and humidity monitoring.
  • The board features an onboard TG28 power management chip, which connects to a 3.7V MX1.25 lithium battery for uninterrupted power supply. A backup battery interface is also provided to ensure continuous operation of the RTC function when the main battery is replaced.
  • The TG28 offers an efficient power management solution, supports multiple configurable output voltages, and integrates charging and battery management functions to help extend battery life.
  • The adoption of a Type-C interface improves user convenience and device compatibility.
  • The onboard Micro SD card slot enables storage expansion and fast data transfer, suitable for scenarios such as data recording and media playback, simplifying circuit design.
  • The onboard dial button, along with the BOOT and PWR side buttons, supports customizable button functions, allowing for greater flexibility in development and use.

Product Parameters


Display panelePaperDisplay color黑白
Operating voltage3.3VGray levels4
Display size86.40 × 51.84 (mm)Global refresh3.5s
resolution800 × 480 pixelsQuick refresh2.8s
Viewing angle>170°Partial refresh0.6s
Refresh power consumption<40mWFour-level grayscale refresh3.5s

Onboard audio codec chip

It supports high-quality audio processing, providing clear and excellent audio input and output.



Supports AI voice interaction

Supports Xiaozhi AI and can connect to online large model platforms, such as Doubao and DeepSeek AI models.


Turning pages is easier with the dial buttons.

The unique side dial design eliminates repetitive tapping during extended reading and browsing, reducing operator fatigue.


Application scenarios

It can be used for voice interaction, e-readers, etc.


Function Introduction


Supports ESP-IDF and Arduino

It comes with a complete SDK and open-source tutorials, making it easy to get started and quickly embeddable into applications.

Resource Introduction


  1. ESP32-S3-WROOM-1-N16R8

    Wi-Fi and Bluetooth SoC module, operating at 240MHz, packaged with 8MB PSRAM and 16MB Flash.

  2. SHTC3 Temperature and Humidity Sensor

    Provides ambient temperature and humidity measurement, facilitating environmental monitoring functions.

  3. PCF85063

    RTC clock chip, supporting time hold function

  4. Dial button

    Supports customization of button functions in three directions.

  5. PWR power button

    The program can control all power sources when powered by a lithium battery.

  6. BOOT button

    Press and hold BOOT, then power cycle to enter download mode.

  7. NS4150B

    Audio power amplifier chip

  8. ES8311

    Low-power audio codec chip

  1. QMI8658

    A six-axis inertial measurement unit (IMU) containing a 3-axis gyroscope and a 3-axis accelerometer.

  2. MX1.25 speaker connector

  3. MX1.25 RTC spare battery connector

    Used to power the RTC when no battery is connected to the lithium battery interface.

  4. MX1.25 Lithium Battery Interface

    The MX1.25 2PIN connector can be used to connect a 3.7V lithium battery, supporting charging and discharging.

  5. 3.97 E-ink interface

  6. TG28

    Highly integrated power management chip

  7. mike

  8. Type-C

  9. Micro SD 



Product Dimensions