Abstract: A low power internet of things (IoT) device includes: a power source; a controller coupled to the power source; a selectively enabled power converter coupled to the power source; and a selectively enabled communication module coupled to the power converter. An automated method of controlling a low power IoT device includes: monitoring a set of hardware triggers; determining whether a set of communication criteria has been met; enabling a communication module of the IoT device if the set of communication criteria has been met; and disabling the communication module after determining that communication has been completed. A low power IoT system includes: a low power IoT device including: a power source; a controller coupled to the power source; a selectively enabled power converter coupled to the power source; and a selectively enabled communication module coupled to the power converter; and a server.

Abstract: A medical test system includes: a test cartridge having a sample collection portion, a test substrate, a result indicator, and a reservoir that stores a test solution; and a measurement station including: a reservoir lock that couples to the reservoir; a tester manipulator that couples to the sample collection portion and is able to insert the test substrate into the reservoir portion in order to apply the test solution to the test substrate; and a sensor able to identify a result. A medical test cartridge includes: a tester portion including: a collection element; substrate; and result indicator; and a base portion including: a reservoir housing a test solution. An automated method of evaluating a medical sample includes: receiving a base portion of a test cartridge; securing the base portion using a retention element; receiving a tester portion of the test cartridge; and inserting the tester portion into the base portion.