I think this [1] might answer your question. Still curious whether OP’s linked book goes this route. 1 - https://docs.rust-embedded.org/discovery/microbit/04-m

I think this [1] might answer your question. Still curious whether OP’s linked book goes this route. 1 - https://docs.rust-embedded.org/discovery/microbit/04-meet-your-hardware/terminology.html https://docs.rust-embedded.org/discovery/microbit/04-meet-yo...