LED color codes.

[kciszewski]

I got "example_pixel_kit_stream_frame.py" running. It would be helpful to know what the six digit hex codes are for the possible colors of the leds.

[murilopolese]

Hey, @kciszewski!

The six digit codes are precisely what you said: Hexadecimal codes for colors. It's a very common way to describe colors specially on web technologies. You will find a lot of information about it on the internet.

Does that answer your question?

[kciszewski]

Since I don't have the part number of the LEDs, probably not.

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On Mon, 11/12/18, Murilo Polese notifications@github.com wrote:

Subject: Re: [KanoComputing/community-sdk] LED color codes. (#14) To: "KanoComputing/community-sdk" community-sdk@noreply.github.com Cc: "kciszewski" kenski@swbell.net, "Mention" mention@noreply.github.com Date: Monday, November 12, 2018, 12:58 PM

Hey, @kciszewski! The six digit codes are precisely what you said: Hexadecimal codes for colors. It's a very common way to describe colors specially on web technologies. You will find a lot of information about it on the internet. Does that answer your question?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[murilopolese]

I got "example_pixel_kit_stream_frame.py" running.

Cool!

It would be helpful to know what the six digit hex codes are

Hexadecimal color code. That is what the six digit codes are. The two first for "red", followed by two digits for "blue" and the last two digits are for "green".

If you want to know more about the color conversion from the hexadecimal to the format the firmware accepts (base64 encoded rgb565 colors), check this part of the code.

for the possible colors of the leds

That is a very complicated question to make and I see no simple way to answer this. Are you being blocked to create something by this question or is that more of a curiosity? In the first case, can you explain what are you trying to do? If you are just curious I invite you to run a few tests and read the source code to find an approximation to the answer. If you do that, please share your results because I don't have it!

Since I don't have the part number of the LEDs, probably not.

So what you want is the part number for the LED? I'm not sure if I can provide that information as it's outside of the boundaries of the communitysdk :T

If that doesn't answer your questions, could you talk a bit more about it? Maybe you have a new questions or want to rephrase it?

[kciszewski]

I'm trying to get programmable control of individual and groups of LEDS.

As I look around the Web, I keep finding different things.

Let's try this a different way. I found kano-pixel-kit-pixel32_docs on Git Hub, but am not sure how to use it. This page looks like it contains parts of python scripts.

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On Mon, 11/12/18, Murilo Polese notifications@github.com wrote:

Subject: Re: [KanoComputing/community-sdk] LED color codes. (#14) To: "KanoComputing/community-sdk" community-sdk@noreply.github.com Cc: "kciszewski" kenski@swbell.net, "Mention" mention@noreply.github.com Date: Monday, November 12, 2018, 4:12 PM

I got "example_pixel_kit_stream_frame.py" running.

Cool!

It would be helpful to know what the six digit hex codes are

Hexadecimal color code. That is what the six digit codes are. The two first for "red", followed by two digits for "blue" and the last two digits are for "green".

If you want to know more about the color conversion from the hexadecimal to the format the firmware accepts (base64 encoded rgb565 colors), check this part of the code.

for the possible colors of the leds

That is a very complicated question to make and I see no simple way to answer this. Are you being blocked to create something by this question or is that more of a curiosity? In the first case, can you explain what are you trying to do? If you are just curious I invite you to run a few tests and read the source code to find an approximation to the answer. If you do that, please share your results because I don't have it!

Since I don't have the part number of the LEDs, probably not.

So what you want is the part number for the LED? I'm not sure if I can provide that information as it's outside of the boundaries of the communitysdk :T

If that doesn't answer your questions, could you talk a bit more about it? Maybe you have a new questions or want to rephrase it?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[murilopolese]

Hey @kciszewski !

That is indeed a very different question from the original one! xD

Let's do this step by step:

1. Is the question from this issue answered: About the HEX colors? Or do you believe that question is no longer relevant? If so, would you mind closing this issue and opening another one more specific to what you want to know? This is just an organisation thing so people from the future can find answers to their questions easily :)
2. You can set individual LEDs using the communitysdk but as we speak there is no dedicated method to do it. When we stream the frame to the board we send 128 color values: one for each LED. Those values are a linear representation of a two dimensional matrix and to set, for example, the pixel on the coordinate x = 2 and y = 4 all you need to do is to calculate: ledIndex = (x * 16) + y. Perhaps this feature request I just created will be more what you are looking for?
3. The communitysdk and the pixel32 are two completely different projects with completely different approaches. I believe there is relevance for both and you might want to review the communitysdk goals and roadmap and the pixel32 readme to decide which one is the best for your projects.

[murilopolese]

Hey, @kciszewski! Does my reply answer your question?

I opened a new feature request for an easier way to set colors on individual LEDs so I wonder if we could close this one :)

[kciszewski]

Close this one.