This password encoder was decompiled from the Android app then manually cleaned up and ported to Javascript. It ain't pretty, but it works.
I don't know that this is all necessarily the most correct or idiomatic way to implement these features, but I wanted to make sure the functionality got committed to help out people wanting to use this for smart home appliances (#1).
Close the finder when we've found a unit.
Request and handle each piece of data in sequence instead of requesting it all at once and then closing when the last expected message comes through. This is potentially slightly slower, but much clearer and 'safer'.
