Spotpear ESP32-S3 3.97-inch e-Paper AIoT Board 📟
Low power e-ink display with AI voice interaction support
Overview
This ESP32-S3-WROOM-1-N16R8 development board integrates a 3.97-inch 800x480 e-ink display with an onboard RTC, temperature/humidity sensor, 6-axis IMU, audio codec, and Micro SD slot. Ideal for IoT terminals, e-readers, and AI voice interaction projects using the ESP-IDF or Arduino ecosystem.
Key FeaturesPowerful Dual-Core MCU
ESP32-S3R8 Xtensa LX7 dual-core running up to 240MHz, with 8MB PSRAM and 16MB Flash.
Low Power e-Ink Display
3.97-inch e-paper, 800x480 resolution, >170° viewing angle, clear display even when powered off.
AI Voice Interaction
Onboard audio codec supports voice capture/playback and connection to online AI model platforms.
Rich Onboard Sensors
RTC clock, SHTC3 temperature/humidity sensor, and QMI8658 6-axis IMU for motion detection.
Flexible Power Management
Integrated TG28 power management chip with 3.7V lithium battery support and backup RTC battery interface.
Convenient Connectivity
Type-C interface, Micro SD card slot, side dial button, plus BOOT and PWR buttons for customizable functions.
Choosing Your Option
Epaper-3.97-Kit: Full kit configuration (check listing photos for included accessories).
Epaper-3.97-With-Bat: Development board with lithium battery included.
Epaper-3.97-No-Bat: Development board only, no battery included (battery sold separately).
SpecificationsDisplay PanelePaper (e-ink)Display ColorBlack and WhiteResolution800 x 480 pixelsDisplay Size86.40 x 51.84 mm (3.97 inch)Gray Levels4Viewing Angle>170°Global Refresh3.5sQuick Refresh2.8sPartial Refresh0.6sOperating Voltage3.3VProduct ImagesFAQIs this board compatible with ESP-IDF and Arduino?
Yes, it comes with a complete SDK and open-source tutorials for both development environments.
Does it include a battery?
Depends on the variation selected. Please check the option description above for battery inclusion.
What connectivity does it support?
2.4GHz WiFi (802.11 b/g/n) and Bluetooth 5 (LE) with onboard antenna, plus Type-C and Micro SD card slot.
Can it be used for AI voice applications?
Yes, the onboard audio codec supports voice capture and playback, enabling connection to online AI voice model platforms.
