Waveshare ESP32-S3 3.97inch e-Paper Development Board, 800 × 480 Resolution, Supports Wi-Fi / BLE 5, And AI Voice Interaction, Onboard Microphone [Battery Not Included]

ESP32-S3 3.97inch e-Paper Development Board, 800 × 480 Resolution, Supports Wi-Fi / BLE 5, And AI Voice Interaction, Onboard Microphone [Battery Not Included]

The ESP32-S3 3.97-inch e-Paper Development Board is a powerful and energy-efficient solution designed for smart display applications, IoT projects, and AI-based voice interaction systems. Featuring a high-resolution 800 × 480 e-paper display, this board delivers crisp, paper-like visuals with ultra-low power consumption, making it ideal for always-on interfaces such as dashboards, smart labels, and control panels.

Powered by the ESP32-S3 chipset, it supports both Wi-Fi and BLE 5 connectivity, enabling seamless wireless communication for cloud integration and remote control. The onboard microphone allows for AI voice interaction, making it suitable for voice-controlled applications and intelligent assistant projects. Its e-paper technology ensures excellent readability even under direct sunlight, with no backlight required.

Designed for developers and makers, this board offers flexible integration options and supports a wide range of embedded development environments. Whether you're building a smart home interface, IoT display terminal, or AI-powered device, this development board provides a reliable and feature-rich platform.

User Manual / Datasheet / Example Codes Etc.

Features

• Adopts ESP32-S3R8 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, 384KB ROM, with integrated 8MB PSRAM and external 16MB Flash
• Onboard 3.97inch e-paper display, 800 × 480 resolution, features high contrast and wide viewing angle
• Onboard audio codec chip, supports voice capture and playback, enabling AI voice interaction applications
• Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures, counting steps, etc.
• Onboard PCF85063 RTC chip and SHTC3 temperature & humidity sensor for accurate RTC management and environmental monitoring
• Onboard TG28 power management chip, supports 3.7V MX1.25 Lithium Batt for uninterrupted power supply, with a reserved backup Batt header to ensure continuous RTC functionality during main Batt replacement
• Adopts TG28 chip for efficient power management, supports multiple voltage outputs, Batt charging, Batt management, and Batt life optimization, etc.
• Type-C port, improving device compatibility, easier to use
• Onboard TF card slot for storage expansion and rapid data transfer, suitable for data logging, media playback, and other applications, simplifying circuit design
• Onboard programmable PWR and BOOT side buttons for customized function development

Specifications

• display panel: e-paper display
• Operating voltage: 3.3V
• Display size: 86.40 × 51.84 (mm)
• resolution: 800 × 480 pixels
• viewing angle: >170°
• Refresh power: <40mW
• display color: black, white
• grey scale: 4
• full refresh time: 3.5s
• Fast refresh time: 2.8s
• partial refresh time: 0.6s
• 4 grayscale refresh time: 3.5s

Package Includes

• ESP32-S3-ePaper-3.97-EN x1
• 8Ω 1W speaker x1

What's On Board

Dimensions