Updating wirelessly is also a possibility, not for ASICs, but BT low energy can make it feasible if you do something like a mesh network. Of course, that means

Updating wirelessly is also a possibility, not for ASICs, but BT low energy can make it feasible if you do something like a mesh network. Of course, that means if one device is susceptible, others networked may be too. I don't really have a solution, but if you are interested in playing around with that kind of concept, here's something you can probably start with. [1] The battery lasts about a year or more, supposedly, with a typical watch-kind battery. It isn't too hard to update and it has a few sensors on it already. [1]: https://punchthrough.com/bean/ https://punchthrough.com/bean/