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[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 levels ...
Roger is a long-time tech journalist with many site credits including AppleInsider and Android Authority. His specialties include everything from Apple, Android, and Windows devices through to ...
When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The evolution of TV tech seems to move at a lightning pace. But if you already keep your eyes ...