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 ...

[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a color sensor. Those Cadmium Sulfide lights sensors usually have a very wide swing of resistance when exposed to varying lev… ...

However, I used the official Arduino Starter Kit ($100), which includes everything I needed, minus the nuts, bolts, wires, and ring terminals for making the soil probes.

Posted in Arduino Hacks Tagged arduino, electricity, lcd, ldr, led, meter, panel, photo resistor, photocell, photoresistor, power, solar, utilities ...