Engineering Physics – This cart launcher timer project has been really good. All students are learning a ton from it, working hard, and are engaged. Some students are really taking off with it.
One group had finished the basic task early, so they added a machine learning algorithm to their timer. They added a switch that allows the user to pass the flag/hand/obstacle over the photoresistor. From this pass they do an analogRead and determine how much light is being picked up by the photoresistor. They then use this for the rest of their timer code.