These days we are a little spoiled. There are many sensors you can grab, hook up to your favorite microcontroller, load up some simple library code, and you are in business. When [Raivis] got a ...

A Pulse Oximeter is a very useful and affordable medical device that clamps on one of your fingers. A typical pulse oximeter incorporates a quick and easy way of measuring your heart rate as well as ...

How fast does your heart beat? It’s a tough question to answer, because our heart rate changes all the time depending on what we’re doing and how our body is behaving. However, [Ludwin] noted that ...