On the RP2040 side, plug the Pico into your computer, open the virtual serial port created, and witness the USB packets streaming in – for the price of a Pico, you get an elegant USB sniffer ...

That means the Pico 4 has its work cut out – but the firm is ready for a fight ... The four inside-out tracking cameras (one in each corner) are fairly subtle, as are the power button on the right ...