Is it possible to change colour of a 7-segment display using an Arduino Uno?
I'm making a big led-clock, and I'll use 55 LEDs per each Segment. The clock will be 15cm high and consits of 4 Segments. That are approx. 250LEDs. Now I'm looking for cheap LEDs which suit my ...
As I understand it luminance is the amplitude of the signal, and color is the phase. You need 2 color signals (the third one can be derived from the other 2, like B = 1 - R - G). How can 1 phase ...
Specific color sensing, is it possible in an economical way, without using camera/image recognition?
While I understand that color sensing with camera and sufficiently powered processor running image histogram logic (or other such algorithms) can determine presence of certain colours fairly reliably. ...
From what I understand a computer monitor can output lots (couldn't think of a better word) of colours. Is it possible for a computer monitor (television etc) to output light invisible to the human ...
I would like to know what is the usual range of a color sensor ? Can it detect a light source from a few meters away ? for example, if I want to use a color sensor to detect a particular LED 1 meter ...
I don't mean the colored bands, but the colors of the bodies themselves. They come in brown, blue, green, etc. Is there a standard? For instance, epanorama says: But there are two resistor body ...
I have some RGB LEDs (eBay - no datasheet, 4 pin, common cathode, 5mm). I am colourblind. I'd like to create a palette of colours which appear distinctly for most people's eyes, perhaps 16 colours or ...
Can a LED change colour over time? I've had a blue LED set up for some time and it use to be a much brighter (ultramarine blue) now it's heading to a more greenish dull colour. How is this ...