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Questions tagged [rgb]

Short for: Red Green Blue. The primary colors in light. Mix them to create any imaginable visible color of light. Questions are typical in reference to RGB Leds, RGB Led drivers, and code related to mixing RGB light, but can include RGB Video Standard in VGA monitors.

12
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2answers
4k views

Controlling an RGB LED color range from an analog temperature sensor (no Arduino, etc.)

I'd like to combine an analog temperature sensor with an RGB LED so that I get a range of colors based on temperature. Low temperature blue, high temperature red, with color fade between them as the ...
1
vote
2answers
599 views

RGB LED lighting controller

I am after an RGB controller or amp capable of powering 8 x strips of the RGB lights that come on 5 meter reels, which are 36W each. The problem T have is the client has supplied the lights which come ...
3
votes
4answers
382 views

Painting Rainbows

I was painting my 2 year old's daughter's bedroom yesterday, she handed me a paint brush and asked me to paint her a rainbow. I could paint her a rainbow, using paint, but I don't have many colour ...
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2answers
2k views

How to run 25 RGB LEDs by an arduino Duemilanove

I am constructing a 5x5 LED grid that has an RGB LED under a plastic cover, and a piezo sensor that changes the RGB LED to one of 8 colors when pressed. So as far as I can tell I need 75 outputs ...
2
votes
2answers
2k views

ATtiny25 PWM LED driver with brightness control

I'll be building a piece of RGB LED jewelry for a gift. It's basically a pair of earphones with one or two RGB LEDs on each, with a small ATtiny25-based PWM driver in a small enclosure. I'll probably ...
1
vote
3answers
5k views

Blending RGB LED colors together

Although this question is more of an optics than electronics, it strongly involves LEDs so I think it is a good idea to post it here. I have a simple 3W, RGB LED with a 5deg lens. Everything is ...
0
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2answers
1k views

Glowing pressure plate

I need to build a pressure plate to go on the front of a prop to be used in Airsoft. The idea is this plate is both an target to be shot at and a visual representation of "health". My initial ...
19
votes
1answer
4k views

What makes a good RGB LED

I am looking for supplier for RGB LEDs for an upcoming project RGB POV LED Globe. Normally I would go to my local electronics supply story, but this project requires lots (~1000) of LEDs and my local ...
7
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3answers
4k views

POV globe speed questions

I am planning on creating a RGB LED POV globe only physically larger then that one. I am planning on using 64 RGB LEDs, requiring 3x pins per LED for a total of 192 outputs. Obviously I am going to ...
0
votes
3answers
1k views

Do RGB LEDs actually behave like three separate LEDs?

I am trying to operate a lot of RGB LEDs for a project. I came up with a crazy scheme which only works if the RGBs work exactly as three separate LEDs. What I want to do is connect the R, G and B ...
2
votes
1answer
2k views

Arduino, RGB LED, BlinkM MaxM controller

I'm a student from QUT doing interaction design this semester (you've probably heard from a few of us over the past few months). Anyway I just order the 25 diffused RGB Leds if that rings a bell for ...
3
votes
1answer
222 views

Colour correcting RGB LEDs - possibly with science

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 ...
9
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5answers
6k views

Red Green Blue LED

Do you need to use different resistors against each of the colours on an RGB LED?
8
votes
5answers
10k views

Is there a single IC that can control a 8x8 RGB LED Matrix

I was wondering if there was a single IC like the MAX6960 that could control a whole 8x8 RGB LED Matrix because the MAX6960 can only control a RGY.