Pharos

Inspired from the original Jolla Inari Blue TOH LED toggle button and system.

Find your phone in the night. JP2 only.

A very dim, steady light while the display is off, to find our Sailfish OS phone in the dark.

• Front notification LED, dimmed through an MCE pattern (PatternPharos).
• With the Inari Blue TOH attached: its middle LED, in constant mode.
• A top menu switch to turn it on and off.

This project was created with heavy LLM use, and some human brain and knowledge where possible.

Please note: this has not yet been tested over the long term. You use it at your own risk, particularly in the event of data loss or damage to the software or hardware.

Source code: https://github.com/Ric9k-TMO-FSO/pharos

Compatibility and testing

• Briefly tested on the Jolla Phone (2026) with Sailfish OS 5.2.0.20 and the Inari Blue TOH.
• The TOH LED part only works on the Jolla Phone (2026) with the Inari Blue TOH: it needs the TOH connector, Jolla's symbiosis service and the Inari Blue LED controller.
• The front LED part uses a standard MCE LED pattern, so it may work on other Sailfish OS devices with a notification LED, but it has not been tested on any other device.

Credits

Pharos is an independent project. It is not affiliated with, endorsed by or supported by Jolla. "Jolla", "Sailfish OS" and "Inari Blue" are used only to name the hardware and software Pharos works with.

Pharos builds on code that Jolla published under the BSD-3-Clause licence, with thanks. Jolla's copyright notice is kept in the files derived from it:

• src/main.rs, src/controller.rs: derived from the blinker example of symbiosis (AW2023 register map, enable sequence, TOH detection and I²C borrowing).
• qml/EnableSwitch.qml: derived from the Inari Blue top menu switch.
• rpm/pharos.spec: Rust build section derived from symbiosis' spec.

Pharos also depends on the symbiosis library (BSD-3-Clause) at build time. All other files are original work.