To get this working, you will need the USB Host Shield for the Arduino and a Bluetooth dongle. Once you have the hardware setup, you can use the library to pair with the controller. When ...

This might seem unnecessary given the fact that Nintendo put out an official wireless controller ... of nothing more than an Arduino Nano wired to a MAX3421E USB host shield.

The HID Relay takes the form of a small adapter that has been built using an Arduino Pro Mini, a Bluetooth module, a USB host shield together with a few other components. Check out the video below ...