Body odor is a stubborn problem. Not just for people, but also for sensors. Sensors and the computing attached to them struggle to perceive armpit odors in the way humans do, because B.O. is really a complex mix of dozens of gaseous chemicals. The UK’s PlasticArmPit project is designing the first machine learning–enabled flexible plastic sensor chip. Its target audience: those who think they might stink. The prototype chip will be manufactured and tested in 2019.

The project is part of a broader effort Arm has been involved in to drive the cost of plastic IoT devices down below US $0.01 so that they can be embedded in all sorts of consumer goods, including disposable ones.