How is addressing actually done?

Other Hardware LEDs and Multiplexing
1

I have a "store bought" LED strip that is in an unusual configuration. It has a single strip about 4 feet long and one end has the connection for a controller. The other end terminates in a round disk with 9 equally spaced connectors laid out so that 9 separate 18 inch strips radiate outward like spokes in a wagon wheel.

I'd like to figure out how all the led on the "spokes" can be addressed 1 by 1. Anyone know how to do this??

Thanks much

Stripper (not what you're thinking; it's because I work with LED STRIPS!!)

2

Please post a link to the LED strip and/or the user manual, and while you are at, it would be a good idea to read through the information.

1 Like
3

You're kidding right?? Most ALL strips come from China and if there happens to instructions included, they are basically unusable do to their pathetic attempt to read/write in English.

Now I know based upon the negative comment I just made, what your response is likely to be??

But thanks anyhow.

4

By addressing LEDs one by one, and noting their position?

By improving on your pathetic attempt to read Chinese?

(Is there something wrong with the auto-repeat on your '?' key?)

5

You can’t post the link to where you bought it?

6

Well at least you didn't call me a RACIST;

7

There is more than one protocol, but all addressable LED strips seem to be serial... The data passes-through all of the LEDs/drivers and when it stops that's what you get.

The most popular strip seems to be the WS2812 (AKA Neopixels). These use just one "data" connection (plus power & ground) and the pulse-timing determines when you're addressing the next LED. The timing is tricky so there are software libraries to help.

There are other LED strips that have separate data & clock lines, so the coding is simpler.

If you buy a "basic" LED strip from a reliable supplier they should give you a link to the datasheet & specs, and Adafruit has libraries you can download and all kinds of helpful information.

If you buy an assembled ready-to-go display and controller of course they don't have to give you any details and it might be impossible to "hack".

8

Come on, please get serious and give a Web link to the strip in question.

Clearly no-one here recognises it which is hardly surprising, so without some information, it is simply not possible to determine how it operates. :roll_eyes:

9

...and now it looks like your caps locks is stuck.

Turn your keyboard over and shake the crumbs out.

10

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