Determining the gravity acceleration via damping spring is one of the fundamental physics experiments. Because students can not start stopwatch on time and also detecting the exact moment of transition of the the spring at a given point is difficult, often quite unexpected results of this trial will be appeared. We decided to find a way to count the number of (e.g 10) swings, with the help of an eye-sensor. That is: - Connecting to an electronic stopwatch - Connecting to an optical sensor - Programming to calculate the 10 swings
Such a thing is possible with arduino? Is it done before? sth similar will be a help!