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 ...

Sometimes, a project comes along that makes a good reference design for anyone doing similar work. In this particular case, it’s a DIY USB polygraph-like machine by [Juangg] using an Arduino and ...

Pulse oximeters designed for home use have been available for some time. But in recent years, their popularity has grown as people increasingly prioritize wellness and actively seek convenient ways to ...