In order to research adherence, Paul Krezanoski enlisted me to help implement his solution. This device measures conductivity through the fibers in the net to determine whether or not it is properly deployed.
I wrote the firmware and collaborated with the hardware designer to create a device capable of taking measurements at 15 minutes intervals; this first iteration is already able to last months at a time with a small battery.
The device is currently being used in a pilot study.
(Photo credit: Toronto Globe and Mail)