At one end is an LED and at the other the LDR, and when attached to a glove it provides a finger sensor without the fuss. The amount of light reaching the LDR from the LED decreases as the pipe is ...

Well, here is an open-source, Arduino-based light meter that allows you to measure the amount of light with the help of a digital ambient light sensor, the BH1750FVI, from ROHM. Light Sensor Module.

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. Last month we saw [Udo]’s blinkenlight shield that can be used as a lin… ...