# Movement Sensor Component

This section documents the configuration attributes for each built-in movement sensor model.
Use these pages when you are writing a JSON configuration, debugging a config validation error, or looking up the default for a specific attribute.

- For how to add and configure a movement sensor component on your machine, see [Movement sensor](https://docs.viam.com/hardware/common-components/add-a-movement-sensor/).
- For the methods you call on a movement sensor in code, see the [Movement sensor API reference](https://docs.viam.com/reference/apis/components/movement-sensor/).
- For movement sensor models outside the built-in set, search for `movement sensor` in the [Viam registry](https://app.viam.com/registry). Each registry module’s configuration is documented in its own README on its registry page.

## Built-in models

The following movement sensor models ship with `viam-server`:

| Model | Description |
| --- | --- |
| [`fake`](https://docs.viam.com/reference/components/movement-sensor/fake/) | A model for testing, with no physical hardware. |
| [`merged`](https://docs.viam.com/reference/components/movement-sensor/merged/) | A model that allows you to aggregate the API methods supported by multiple sensors into a singular sensor client, effectively merging the models of the individual resources. |
| [`wheeled-odometry`](https://docs.viam.com/reference/components/movement-sensor/wheeled-odometry/) | A model that uses encoders to get an odometry estimate from a wheeled base. |

## Micro-RDK models

The following movement sensor models ship with the [Micro-RDK](https://docs.viam.com/reference/device-setup/setup-micro/):

| Model | Description |
| --- | --- |
| [`accel-adxl345`](https://docs.viam.com/reference/components/movement-sensor/micro-rdk/accel-adxl345/) | — |
| [`gyro-mpu6050`](https://docs.viam.com/reference/components/movement-sensor/micro-rdk/gyro-mpu6050/) | — |