What is miyoo-mqtt-reporter?

Miyoo MQTT Reporter is a small background plugin for the Miyoo Mini Plus, a handheld gaming device running OnionOS. It continuously reads the device's system state and publishes that data to Home Assistant, a popular home automation hub, via MQTT, a lightweight publish-subscribe messaging protocol common in smart home setups. Every 10 seconds by default, the plugin collects data across several categories: battery percentage, voltage, current draw, and charging status, CPU load, frequency, temperature, and RAM usage, audio volume and mute state, display brightness and color settings, Wi-Fi details including signal strength and IP address, SD card storage, and gaming-specific data like the currently running game, emulator, total playtime today, and session duration. It then sends this to your MQTT broker as a single JSON payload. On the Home Assistant side, the plugin uses MQTT Discovery, a feature that registers devices automatically without requiring manual configuration file edits. The first connection creates 73 sensor and status entities in Home Assistant, ready to use in dashboards or automations. Setup is done through an on-device web interface. After installing the plugin on the SD card and booting the device, opening the app shows a QR code linking to a browser-based config page on your local network. You enter your broker address, credentials, and publish interval, save, and the daemon starts immediately. A companion Home Assistant dashboard card is also available for displaying the Miyoo's data in a visual widget. The full README is longer than what was provided.