ESP32 Open-Source 1.54-inch 200x200 E-Paper Smartwatch Development Kit

ESP32 Open-Source E-Paper Smartwatch Development Kit

This programmable watch-format platform combines an ESP32 controller with a low-power monochrome e-paper display. It is intended for firmware experiments, custom watch faces, compact status displays and wearable IoT prototypes rather than as a closed consumer smartwatch.

Core Hardware

• 1.54-inch monochrome e-paper display with 200 x 200 resolution.
• ESP32-based controller with Wi-Fi and Bluetooth Low Energy capability.
• Rechargeable wearable format with USB connection for power and development.
• Open-source hardware and software design suitable for custom firmware and display layouts.
• Replaceable hook-and-loop style wrist strap shown with the current package.

Development Uses

• Custom clocks, calendars and information dashboards.
• Low-power sensor, telemetry and notification experiments.
• Wi-Fi or BLE-connected wearable prototypes.
• E-paper refresh, deep-sleep and battery-life development.

Important Selection Notes

• E-paper retains an image without continuous refresh, but screen updates are slower than LCD or OLED displays.
• Runtime depends on firmware, wireless activity, refresh frequency and battery condition.
• Firmware and examples may require development-tool installation and are not equivalent to a finished commercial smartwatch application.
• Confirm the supplied board revision before using third-party pin maps or flashing files. Similar open-source e-paper watches can use different ESP32 revisions and GPIO assignments.

Package Reference

The package follows the selected watch configuration and includes the assembled watch-format development unit and strap. Confirm the delivered USB cable and accessories before deployment.