Photoshop CC 2017 tutorial showing how to create the look of a huge display sign of retro, LED lights of text and graphics like you may have seen in the past of enormous screens in sports arenas and ...
This circuit shows how to use an ordinary LED as a light sensor. It makes use of the photovoltaic voltage developed across the LED when it is exposed to light. LEDs are cheaper than photodiodes and ...
When you need to quantify the color of an object, you’ve got quite a few options. You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an ...