ePaper Driver Board Overview
Introduction
ePaper Driver Board series is engineered for low-power ePaper applications, universally supporting 24-pin and 50-pin displays while featuring shared core functionalities: JST 2.0 mm battery connector with power switch, integrated charging IC, one reset button, and three user-configurable buttons; available with diverse microcontroller options (e.g., XIAO ESP32-S3 Plus, XIAO nRF52840 Plus) – some models add extra capabilities like NFC – making them ideal for digital signage, electronic labels, portable information boards, and other low-power display projects.
EE04 Driver Board

Powered by XIAO ESP32-S3 Plus, the display board EE04 supports both 24-pin and 50-pin ePaper displays. It features a JST 2.0 mm battery connector with power switch, built-in charging IC, and comes with one reset and three user buttons. Well-suited for low-power ePaper projects such as digital signage, electronic labels, and portable information boards.
Featrue
- Powered by XIAO ESP32-S3 Plus: Works immediately when connected to a compatible ePaper display.
- Versatile Display Support: Compatible with a wide range of ePaper screens, supporting both 24-Pin and 50-Pin interfaces with easy switching via jumper caps.
- BAT Connector with Switch: Provides simple battery connection and integrates a switch, enabling efficient power management and energy savings.
- User-Friendly Buttons: Includes 1 reset button and 3 user-programmable buttons, offering flexibility for project acceleration and customizable functions.
EN04 Driver Board

Powered by XIAO nRF52840 Plus, the display board EN04 supports both 24-pin and 50-pin ePaper displays. It features a JST 2.0 mm battery connector with power switch, built-in charging IC, NFC function and comes with one reset and three user buttons. Well-suited for low-power ePaper projects such as digital signage, electronic labels, and portable information boards.
Featrue
- Powered by XIAO nRF52840 Plus: Works immediately when connected to a compatible ePaper display.
- Versatile Display Support: Compatible with a wide range of ePaper screens, supporting both 24-Pin and 50-Pin interfaces with easy switching via jumper caps.
- BAT Connector with Switch: Provides simple battery connection and integrates a switch, enabling efficient power management and energy savings.
- User-Friendly Buttons: Includes 1 reset button and 3 user-programmable buttons, offering flexibility for project acceleration and customizable functions.
EE02 Driver Board

The EE02 is a high-performance E-ink screen driver board specifically designed for 13.3-inch electronic paper displays. Powered by the ESP32-S3 chip, it supports Wi-Fi and Bluetooth connectivity, making it an ideal solution for wireless display applications.
Featrue
- Powerful Controller: Built around the ESP32-S3, offering robust processing power and wireless capabilities.
- Dedicated for Large Screens: Specifically optimized to drive 13.3-inch E-ink displays with high stability and clarity.
- Wireless Connectivity: Supports Wi-Fi and Bluetooth 5.0 (LE), enabling remote data updates and cloud integration.
- Low Power Consumption: Designed for energy efficiency, suitable for battery-powered applications.
- Easy Integration: Compatible with SenseCraft HMI for drag-and-drop interface design and remote management.
- Versatile Interfaces: Includes Type-C for power/programming and standard connectors for E-ink screens.
Applications
The reTerminal E Series ePaper Display supports multiple development platforms and frameworks:
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EE04 Driver Board works with platformio
Explains how to plug the EN04 getting start with PlatformIO.
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EE04 Driver Board works with ESPHome in Home Assistant
Explains how to plug the EN04 into Home Assistant and write simple programs to draw simple graphs in ESPHome via YAML.
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EE04 Driver Board works with TRMNL
Utilize the dedicated TRMNL framework for simplified development and rapid deployment.
Tech Support & Product Discussion
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