Folks from [Adafruit] are showing off a neat hack – USB host on RP2040, using the now-famous PIO peripheral. [Adafruit] builds a lot of RP2040 boards, and naturally, you gotta test them before ...

That means you can’t use it with iPads or Chromebooks, for example. To get around this, Adafruit used an RP2040 Feather configured as a USB host to talk to the Intellikeys. It queries the device ...