GlyphHub
The Nothing Phone has 169 LEDs on its back. I wrote an app that puts a clock, a spirit level, a timer or a timetable on them. The modules above run live.
- Kotlin
- Compose
The Nothing Phone has a circular 13 × 13 LED matrix on its back, which the maker opens to developers as Glyph Toys. GlyphHub turns it into one place for 27 modules, from a clock, battery and compass to a metronome, a tuner, a school timetable or pixel art.
Everything is drawn by a single app service. The Jetpack Compose interface, the home screen widget and the sensors never write to the matrix directly; they only pass data and settings, so modules never fight over the display and one engine handles the transitions between them. I tested the app on a Nothing Phone (4a) Pro.
Get in touch- Type
- Android application
- Year
- 2026
- Visit
- GitHub ↗
In numbers
- 27 modules
- Android 16
- 13 × 13 LEDs
What is inside
27 modules on 169 LEDs
Clock, spirit level, compass, metronome, tuner, school timetable and more. All readable on a 13 × 13 matrix.
ŠkolaOnline timetable
The back of the phone shows whether it is a lesson, a break or free time.
Builds anywhere
The vendor SDK is not in the repo. The app finds the interface at runtime and falls back otherwise, so the project builds on any machine.
Got a similar project? Tell me what you need.kontakt@jirkapelikan.cz
Get in touch