Making user-friendly wearable devices

The chest mount harness we made was not very user-friendly. Indeed, it is tedious to install on the participants (the devices comprise many wires, the harness needs to be adjusted to the participant's chest, etc.). We even broke the ethernet wire that was linking various parts of our breathing biofeedback feedback during our showcase at the Cité des Sciences et de l'Industrie in Paris since many people tried it !

Solutions:

- using boards instead of protoboards/breadboards so that the electronic components stay in place

- Install a wireless system (with bluetooth) to simplify the whole set of devices (and the way they communicate between the participants)