# class USB_HID – USB Human Interface Device (HID)

The USB_HID class allows creation of an object representing the USB Human Interface Device (HID) interface. It can be used to emulate a peripheral such as a mouse or keyboard.

Before you can use this class, you need to use `pyb.usb_mode()` to set the USB mode to include the HID interface.

## Constructors

class pyb.USB_HID

  Create a new USB_HID object.

## Methods

USB_HID.recv(data, *, timeout=5000)

  Receive data on the bus:

  > - `data` can be an integer, which is the number of bytes to receive, or a mutable buffer, which will be filled with received bytes.

  > - `timeout` is the timeout in milliseconds to wait for the receive.

  Return value: if `data` is an integer then a new buffer of the bytes received, otherwise the number of bytes read into `data` is returned.

USB_HID.send(data)

  Send data over the USB HID interface:

  > - `data` is the data to send (a tuple/list of integers, or a bytearray).

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External links
  openmv.io
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  github.com/openmv/openmv
  micropython.org
  forum.micropython.org
  github.com/micropython/micropython