# Motors

`MotorsBus` is the low-level interface to a chain of servos on a serial bus. Robots use it to read positions
and write goal positions; you rarely touch it directly unless you are adding hardware.

See [Bring Your Own Hardware](../integrate_hardware) for adding a new bus, and
[Updating Feetech Firmware](../feetech) and [Damiao Motors and CAN Bus](../damiao) for device-specific notes.

## MotorsBus

[[autodoc]] lerobot.motors.motors_bus.MotorsBus

## Motor

[[autodoc]] lerobot.motors.Motor

## MotorCalibration

[[autodoc]] lerobot.motors.MotorCalibration

## MotorNormMode

[[autodoc]] lerobot.motors.MotorNormMode