I'm just starting a similar project to monitor my home. I decided on using esphome.io based devices connected to my Home Assistant setup. Spark Fun has a great ecosystem [1] of sensors and carriers [2] that are just plug and play as far as the hardware goes (no soldering). You would just need to DIY a case.
You could probably also find off the shelf Bluetooth sensors that would interface with Home Assistant for data logging and visualization.
Typical counting of things starts from 0. If you count apples you implicitly start at zero and add 1 for each apple. If you count age, you start at birth (0) and count years; one for each birthday. That isn't zero based. The difference is the index of the item between the starting point and the next item. In zero based this item is number 0, in one based, this item is number 1. The first year of life is generally considered the year following birth.
If the OSM database is used as is and not used to modify any of their existing data, the existing data wouldn't have to be released.
IANAL, but it seems to me that the data could be used in conjunction with existing data for the purposes of rendering tiles and not require releasing any other data sources.
I think it is being used quite appropriately. If someone decides to create a service that uses this library to interface with an LTE network, they have to open source their software. If they went with GPL they wouldn't have to.
I think what he is getting at is if the patent owner ascribes no value to the patents for tax purposes, then the same lack of value applies if they attempt to collect damages for IP infringement.
This would force the patent troll to set the value to something balances so that they can afford the taxes while still recouping enough infringement damages.
You could probably also find off the shelf Bluetooth sensors that would interface with Home Assistant for data logging and visualization.
[1]: https://www.sparkfun.com/categories/tags/qwiic [2]: https://www.sparkfun.com/products/17724