In this experiment we are going to work with a sensor which is a resistor that depends on light. In a dark environment, the resistor will have a very high resistance. As photons (light) land on the ...

Light meters, these days, are no longer a mystery: From home-improvement stores to eBay and Amazon you can find have at least a few units available for purchase. An open-source light meter, however, ...

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 ...