Arduino Pro Mini + Pulse Sensor + OLED = Arduino Controlled Heart Rate Monitor
Inspired by a Star Trek Tricorder, the maker has converted a handheld gyroscopic toy into an original handheld Arduino controlled heart rate monitor. The device consists of an Arduino Pro Mini with a pulse sensor and an OLED display stuffed inside the handle, which conveniently already had accommodations for three AA batteries. After opening up the handle, I…