After a few months of testing a gaggle of techniques, we developed what we think is an innovative pulse sensor. Our prototype (and accompanying code) plugs right into Arduino and easily clips onto a fingertip or earlobe. It’s super small too, button-sized with holes, so it can be sewn into a garment as well. We’d like to manufacturer the actual pulse sensor, making it low-cost, open source, and accessible for students, artists, and developers.
I have several projects in mind that would benefit from heart rate data, but the last time I checked commercial Pulse/Oximeter components are not cheep. I am looking forward to this adding this low cost biosensor to my bag of tricks.