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 ...

IKEA is everywhere right now, especially after rolling out a huge lineup of 21 Matter-compatible gadgets at the start of last ...

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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 ...

The Standard's journalism is supported by our readers. When you purchase through links on our site, we may earn an affiliate commission. Whether lighting up the route to the loo in the middle of the ...