Input on move hub

[phemmer]

According to the Hub to PC Communication tutorial, input() should be usable on the BOOST Move Hub:

This program works on all hubs except for the BOOST Move Hub, since it does not support the usys or uselect module. You can still make it work on that hub by using the input() and print() functions instead.

However this does not appear to be the case. Even with flashing the 3.3.0b5 firmware, I get a NameError trying to use input(). Is this an error in the tutorial? Or is this an accidental omission from the firmware?
I know the move hub is extremely limited, and that's why features are missing, and historically input() has been one of those missing features. But I wasn't sure if recent optimizations had changed that, and maybe that's why the tutorial was advising it.

And if input() is not supported, are there any other mechanisms for sending any sort of input from PC to the hub, no matter how limited? It looks like MoveHub.ble.observe() is functional. Is there any way to send to that from PC? I assume so, but not sure how observe() and broadcast() are implemented in bluetooth.

[dlech]

Thanks for pointing out this oversight. Unfortunately, the move hub is completely full right now so I'm not sure if we will be able to enable it or not.

I think doing broadcast/observe on Windows and Linux is theoretically possible, but certainly not trivial. And it is not technically possible on Mac. I have added a document describing the protocol at https://github.com/pybricks/technical-info/blob/master/pybricks-ble-broadcast-observe.md.