Library Reference¶ Data Logger Built-in Formatters Binary Flight-Time Log Example Usage Shell Commands API Reference Disk activity LED How it works How to wire it into a board Configuration API Reference Input Filtering Kalman Filter API-Reference Notifications Backends Notification Patterns Threading and Queueing API Reference Pad Link When to use it Connection lifecycle GATT service Rocket-side integration Kconfig Ground-station example Failure modes API Reference Powerfail Mitigation Why a GPIO and not the battery voltage Usage API Reference PWM Melodies Several Tunes, One Buzzer API Reference Sensors IMU Attitude Barometer State Machine Simple State Machine Remove Before Flight Flight Thresholds Flight State Recovery Shell Commands API Reference Telemetry Architecture Backends HC-12 wire frame HC-12 threading and rate limiting Device-tree Provisioning Usage from the application API Reference Hardware Watchdog What it supervises What it does not supervise Why the hardware fallback is not optional Board requirements Configuration Usage After a watchdog reset API Reference