ERSA.WEARABLE · OPEN WATCH PLATFORM

ersa.wearable

An open-source watch operating environment built to be understood, repaired, and extended. The firmware brings a calm, text-first interface to the Ampere Works T1E.

Explore the firmware on GitHub

FIRMWARE INTERFACE

Small screen.
Useful by design.

Real host-rendered captures from the firmware UI. The 200 × 200 monochrome display keeps the essentials legible and the interface low-power.

Text watchface running on ersa.wearable — 01Text watchfaceTime, at a glance

App drawer running on ersa.wearable — 02App drawerTwo-button navigation

Daily agenda running on ersa.wearable — 03Daily agendaCalDAV events

Tasks running on ersa.wearable — 04TasksOn-watch checklist

System status running on ersa.wearable — 05System statusDevice diagnostics

OPEN FIRMWARE · REAL HARDWARE

Built in layers.
Ready to make yours.

BOARDAmpere Works T1E · XIAO ESP32-C3

DISPLAY1.54″ monochrome e-paper · 200 × 200

TIMEKEEPINGDS3231 real-time clock

COMPANIONApple notifications and media over Bluetooth LE

EXPLORE THE PLATFORMS

ersa.wearableCURRENT PAGE ersa.computeCOMING SOON

ersa.wearable

Small screen.Useful by design.

Built in layers.Ready to make yours.

Small screen.
Useful by design.

Built in layers.
Ready to make yours.