https://devzone.nordicsemi.com/f/nordic-q-a/36032/nrf51-dongle-shield-host-usb-arduinoHello, I want to ask if is possible connect nRF51 Dongle in Shield Host USB ( https://www.electrofun.pt/usb-host-shield-android-arduino ) with arduino . Thanks very much Best Regards, Hélder Oliveiraen-USTelligent Community 13Wed, 04 Jul 2018 10:37:24 GMThttps://devzone.nordicsemi.com/thread/138929?ContentTypeID=1Wed, 04 Jul 2018 10:37:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fc3700b5-0872-4e2a-9ddf-eb8903f0b404Bj&#248;rn Kvaale<p>I am not sure if this will be possible. Taking a look at the <a href="http://tinkbox.ph/sites/tinkbox.ph/files/downloads/Keyes%20USB%20Host%20Shield.pdf">Keyes shield host datasheet</a>, I notice that the device classes that are currently supported are:</p> <p>HID devices &amp; mas storage devices</p> <p>The nrf51 dongle, on the other hand, connects via a virtual COM port over UART. Therefore, I do not believe this will work unfortunately.</p> <p>Maybe one of these links will be helpful: <a href="https://www.circuitsathome.com/usb-host-shield-hardware-manual/">link 1</a>, <a href="https://barrettsprojects.wordpress.com/2013/01/12/usb-host-shield-demonstration/">link 2</a>, <a href="https://github.com/felis/USB_Host_Shield_2.0/wiki/Bluetooth-dongles">link 3</a>.</p><div style="clear:both;"></div>