The paper mentioned in the article [0] and cannonpr's WiBreathe paper both mention 2.4GHz. I would think 5GHz would provide more detail (at the cost of range),

The paper mentioned in the article [0] and cannonpr's WiBreathe paper both mention 2.4GHz. I would think 5GHz would provide more detail (at the cost of range), but admittedly this isn't my forte at all. [0] http://arxiv.org/abs/1608.03430 http://arxiv.org/abs/1608.03430