In this experiment we are going to use a element called photoresistor. This sensor allows us to interact with the external environment, through intensity of light. The photoresistor is based on light ...

And the third, tells it what type of trigger to look for, a logic high, a logic low or a transition between the two. You can find detailed articles/tutorials on Arduino Interrupts (prepared by me) ...

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. [Udo] hit upon the idea of pulsing a laser pointer and measuring the time of the ...