RT @ashens: “Infrared and visible-light LEDs, along with photosensors, detect your pulse rate.” Why? Do heart attacks get me more coins in Candy Crush?
Personal blog of Peter "Sci" Turpin
Technology, art and personal faff
RT @ashens: “Infrared and visible-light LEDs, along with photosensors, detect your pulse rate.” Why? Do heart attacks get me more coins in Candy Crush?