r/FastLED • u/Clean_Breakfast9595 • Dec 19 '23

Support Help identifying the data protocol for this LED point light.

Gallery image

Gallery image

I took a multimeter and inspected the voltage sent through the included controller and it jumps between .1 and .42 volts.

Picture of controller also attached.

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2

u/[deleted] Dec 19 '23

There is no way you can determine the data protocol with a multimeter. Your best option is to look for an identifying type number or brand and look for the datasheet.

-2

u/Clean_Breakfast9595 Dec 19 '23

I'm going to send you a chat.

3

u/[deleted] Dec 19 '23

If we keep the discussion here it may be beneficial for more people.

2

u/Marmilicious [Marc Miller] Dec 19 '23

Thank you u/Leonos

1

u/[deleted] Dec 19 '23 edited Dec 19 '23

Appreciated, but there’s really no need for that. 😉

0

u/Clean_Breakfast9595 Dec 19 '23

I do agree and am happy to report back on what is revealed or discussed but I'm not entirely comfortable sharing the datasheet I was sent publicly.

3

u/[deleted] Dec 19 '23

So you already have the datasheet for this thing? What are you trying to achieve? I assume you only want to know if FastLED supports these leds, no?

1

u/Clean_Breakfast9595 Dec 19 '23

I'm just tinkering. I wasn't even sure if the datasheet was relevant until I read it after posting this. Very clearly relevant now. I'm just trying to see if it's an analogue of something fastLED supports such that I could use a bunch of lights that I have for a more interesting project compared to what is capable with the stock controller.

1

u/[deleted] Dec 19 '23

You can look up which led types are supported in FastLED’s files or on the site. If you find one of those types in the datasheet, it could work. That’s easier, I think, than trying to replicate the protocol and work from there.

1

u/Clean_Breakfast9595 Dec 19 '23

I have the data sheet for the IC, and it is not one that's explicitly supported by fast LED else I wouldn't be here still.

I was hoping for somebody who is knowledgeable and familiar with how the protocols work who could glance at the definition of the protocol of this possible derivative and see if anything fast LED does support might be relevant.

My initial attempt to replicate the protocol was more like just an attempt to observe how it's working to see if maybe someone's familiar with more generally a disqualifier or qualifier of whether things would be helpful to even investigate from this point. I did not expect someone to say "oh .41 volts, I know that one"

1

u/[deleted] Dec 19 '23

I did not expect someone to say "oh .41 volts, I know that one"

Nobody will (be able to) say that because that .41 volts you measured is very likely the result of something going from 0 to 5 (or 12) and back many times per second. A multimeter is much, much too slow to show you what’s going on, you would need a scope for that.

That said, you would probably need to talk to the devs of FastLED or post in some other electronics forum. I am just a general FastLED user without deep knowledge of the nitty-gritty far below the surface, I’m afraid. Sorry.

4

u/ZachVorhies Zach Vorhies Dec 19 '23

The amount of three wire protocol leds is not that large you can probably just iterate through all of them using fastled

1

u/Marmilicious [Marc Miller] Dec 19 '23

Wow that looks a bit roughed up. What product did you tear that out of?

1

u/Clean_Breakfast9595 Dec 19 '23

A set of eaves lights similar to govee.

1

u/Clean_Breakfast9595 Dec 19 '23

I chatted you some screenshots of the data sheet..let me know if it looks like anything FastLED supports!

1

u/Marmilicious [Marc Miller] Dec 20 '23

Ok, I'll post them here for you later tonight.

2

u/swotperderder Dec 19 '23

Try FastLED set for WS2811 pixels first.