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 ...

it looks like multiple LED’s are lit up simultaneously. [Alex] planned to use an Arduino to control this display, but it doesn’t have enough outputs on its own to control all of those lights.

Solder the battery pack to the Arduino. An Arduino is ... Wear it and light up the room. There you have it. You’ve made your own LED ugly sweater. I’d recommend wearing a shirt underneath ...

Adafruit has this week announced the arrival of the new Arduino RGB Matrix Shield which is now ... LEDs on at once but for scrolling text and light LED usage it will make wiring even easier ...