The RGB LED sign made by [Hans and team] over at the [Hackheim hackerspace] in Trondheim is a testament to this fact. As you would expect, the WS2812 RGB LEDs illuminate the sign. In this ...

Question: I see the sign boards along the highway with different messages posted. Do they use these for AMBER Alerts? I know I get the alert on my phone and was just curious. Answer: Message and ...