In this proof of concept, I picture a hiker being out on the trail enjoying their leisurely walk. They see an object of interest (an owl's nest, some old ruins?), and they draw the letter "C" in the air, for checkpoint. This gesture then uses the phone's GPS to mark the checkpoint on the map of a custom app that is connected to the Nicla Sense ME via Bluetooth Low Energy (BLE), so the hiker knows exactly where that object of interest is. The Nicla also monitors the barometric pressure, which can be used as an indicator of bad weather. If a low-pressure storm starts to move in, the hiker can be alerted that bad weather is on the way and head back to their car before they get caught in a storm.