Relaying USB frames

RE: Relaying USB frames

ai212983 — Fri, 06 Mar 2020 22:36:59 GMT

You can use USB Host Shield (most likely with MAX3421E) to connect USB with SPI. I am not aware of products similar to nrf52840 with USB host functionality, and, frankly, not sure it's necessary.

I am working on something exactly you've described, have both nrf52840 DK and dongle, waiting for Arduino USB Host Shield to arrive. :)

RE: Relaying USB frames

io78 — Fri, 28 Feb 2020 14:05:16 GMT

Is there a similar product offered that can act as a USB host?

RE: Relaying USB frames

Sigurd — Fri, 28 Feb 2020 13:52:51 GMT

Hi,

[quote user=""]Can the nRF52840 accomplish this?[/quote]

If I understand you correctly, this is an existing Keyboard that already acts as a USB device. In that case, no. The nRF52840 only supports USB device (USBD). You would need a device that supports both USB device and USB Host to accomplish this. It's the "Keyboard to A (via USB)" that's not supported here, as the keyboard in this scenario already implements a USB device, and you cannot connect a USB device(Keyboard) to another USB device(nRF52840).