Argon ONE UP UPS Daemon

An efficient Power Management Daemon for the Argon ONE UP (Laptop model) on Raspberry Pi, written in Rust.

This daemon replaces the original Python scripts and provides native integration into the system D-Bus, allowing battery status to be displayed directly in desktop environments like KDE Plasma or GNOME.

Features

• Native D-Bus Integration: Simulates a UPower-compatible device.
• Laptop Model Support: Detects lid status via GPIO 27.
• Stable AC Detection: Advanced voltage-based logic to prevent "toggling" artifacts.
• Power Button Support: Graceful shutdown on long-press.
• Optimized Performance: Uses hardware interrupts for GPIOs and efficient I2C polling.

Prerequisites

Before installing, ensure that I2C is enabled on your Raspberry Pi:

1. Run sudo raspi-config.
2. Navigate to Interface Options -> I2C and select Yes.
3. Reboot your Pi.

Installation

1. Dependencies

Ensure Rust and Cargo are installed:

curl --proto '=https' --tlsv1.2 -sSf [https://sh.rustup.rs](https://sh.rustup.rs) | sh

2. Configure D-Bus Policy

To allow the daemon to reserve the org.freedesktop.UPower name on the system bus, copy the policy file to the correct directory:

sudo cp config/org.freedesktop.UPower.BatteryArgon.conf /etc/dbus-1/system.d/
sudo systemctl reload dbus

3. Build and Install

Build the optimized release binary and move it to your system path:

cargo build --release
sudo cp target/release/argon-one-up-daemon /usr/local/bin/

4. Setup Systemd Service

Install and start the background service:

sudo cp config/argon-one-up-daemon.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable --now argon-one-up-daemon

License

This project is licensed under the GPL-3.0 License. See the LICENSE file for the full text.