# Raxol Sensor v2.7.0 - Table of Contents > Sensor fusion framework for Elixir built on OTP. Poll sensors, buffer readings, fuse with weighted averaging and thresholds, and render HUD widgets (gauges, sparklines, threat indicators). Optional Nx backend. ## Pages - [Raxol Sensor](readme.md) ## Modules - [Raxol.Sensor.Behaviour](Raxol.Sensor.Behaviour.md): Behaviour for sensor implementations. - [Raxol.Sensor.Feed](Raxol.Sensor.Feed.md): GenServer managing a single sensor's polling lifecycle. - [Raxol.Sensor.Fusion](Raxol.Sensor.Fusion.md): Batches sensor readings and produces fused state. - [Raxol.Sensor.Fusion.NxBackend](Raxol.Sensor.Fusion.NxBackend.md): Nx-accelerated sensor fusion operations. - [Raxol.Sensor.HUD](Raxol.Sensor.HUD.md): Pure functional HUD rendering for sensor data. - [Raxol.Sensor.HUDOverlay](Raxol.Sensor.HUDOverlay.md): Glue layer: subscribes to Fusion updates, renders HUD widgets, writes cells to a buffer. - [Raxol.Sensor.MockSensor](Raxol.Sensor.MockSensor.md): Configurable test/demo sensor. - [Raxol.Sensor.Reading](Raxol.Sensor.Reading.md): A timestamped sensor reading with quality indicator. - [Raxol.Sensor.Supervisor](Raxol.Sensor.Supervisor.md): Supervisor for the sensor fusion subsystem. - [RaxolSensor](RaxolSensor.md): Sensor fusion framework for Elixir built on OTP.