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Has anyone tried the INK1003 flex strips?

Started by smeighan, January 08, 2014, 02:25:39 PM

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smeighan

my megatree is made of 1809s, $42 for 4m
These are $40 for 5m. Each pixel individually addressable. I am thinking of getting some of these to make the iciciles for this next year

http://www.aliexpress.com/store/product/5m-DC12V-INK1003-led-pixel-srip-IP68-30pcs-1002led-5050-RGB-with-bulit-in-INK1003-IC/701799_1546255452.html
Sean
Littleton, CO Latest releases http://nutcracker123.com/nutcracker/releases xLights/Nutcracker Forum http://nutcracker123.com/forum/index.php Facebook [url=https://www.facebook.com/groups

David Pitts

Very interesting find Sean. I will get with Ray for the datasheet.
PixelController, LLC
PixelController.com


David Pitts

#3
Seems like the timing is a little slower. one thing to look out for is this is a 5V chip so there most likely a converter somewhere on the circuit board that reduces it to 5V. I doubt this conversion is being done on every pixel. They may only be able to be cut into certain lengths.

I hear there is a new WS2812B strip that is coming out that will be similar in the fact that you can connect either 5V or 12V but they can only be cut where the converter/regulator is.
PixelController, LLC
PixelController.com

MyKroFt

product desc says every led cutable....?

Myk

dkulp

My "gut feeling" is that they can be cuttable at any led, but the first led in a new series would have to have the regulator thing on the back.  (from the picture, looks about every 15 pixels)   Thus, if you cut after pixel 10, the pixels 11-14 would need to be discarded (or saved for splicing in for bad pixels).   For longer things like frames and arches and rooflines and such, that's probably not a huge deal.  For something like pixel icicles, that could add up (unless your icicles are all exactly the 15 pixel long).   

That said, I'd REALLY like to to see someone buy them and confirm that.  Any takers?   :-)   Wife isn't letting me order anything until April or so or I would.  :-(

Dan
Daniel Kulp - https://kulplights.com

David Pitts

Quote from: dkulp on January 08, 2014, 06:26:32 PM
My "gut feeling" is that they can be cuttable at any led, but the first led in a new series would have to have the regulator thing on the back.  (from the picture, looks about every 15 pixels)   Thus, if you cut after pixel 10, the pixels 11-14 would need to be discarded (or saved for splicing in for bad pixels).   For longer things like frames and arches and rooflines and such, that's probably not a huge deal.  For something like pixel icicles, that could add up (unless your icicles are all exactly the 15 pixel long).   

That said, I'd REALLY like to to see someone buy them and confirm that.  Any takers?   :-)   Wife isn't letting me order anything until April or so or I would.  :-(

Dan

You are right on with your observation Dan. You can clearly see the regulator circuit in the color picture. Just got off the phone with Zach and he confirms these are really WS2812B leds with a different name because of copyright issues.  The regulator circuit feeds a 5V bus we think and if you cut it in the wrong spot you could make a regulator drive too many pixels. I am sticking with TM1812 pixels for my icicles they are only $7.00 more but I know they work.
http://www.aliexpress.com/store/product/5m-DC12V-32leds-m-and-8pcs-TM1812-ic-meter-32pixels-led-digital-strip-IP68-waterproof-in/701799_1342839388.html
PixelController, LLC
PixelController.com

smeighan

Quote from: David Pitts on January 08, 2014, 06:33:31 PM
Quote from: dkulp on January 08, 2014, 06:26:32 PM
My "gut feeling" is that they can be cuttable at any led, but the first led in a new series would have to have the regulator thing on the back.  (from the picture, looks about every 15 pixels)   Thus, if you cut after pixel 10, the pixels 11-14 would need to be discarded (or saved for splicing in for bad pixels).   For longer things like frames and arches and rooflines and such, that's probably not a huge deal.  For something like pixel icicles, that could add up (unless your icicles are all exactly the 15 pixel long).   

That said, I'd REALLY like to to see someone buy them and confirm that.  Any takers?   :-)   Wife isn't letting me order anything until April or so or I would.  :-(

Dan

You are right on with your observation Dan. You can clearly see the regulator circuit in the color picture. Just got off the phone with Zach and he confirms these are really WS2812B leds with a different name because of copyright issues.  The regulator circuit feeds a 5V bus we think and if you cut it in the wrong spot you could make a regulator drive too many pixels. I am sticking with TM1812 pixels for my icicles they are only $7.00 more but I know they work.
http://www.aliexpress.com/store/product/5m-DC12V-32leds-m-and-8pcs-TM1812-ic-meter-32pixels-led-digital-strip-IP68-waterproof-in/701799_1342839388.html

so the choices are
INK1003,150 pixels for $40 or $0.27 each node. 7.2w/meter. 1.3" spacing between nodes
TM1809, 120 pixels for $42 or $0.35 each node. 7.2w/meter. 1.3" spacing between nodes
TM1812, 160 pixels for $47 or $0.29 each node. 7.7w/meter. 1.22" spacing between nodes

INK1003 you can cut every 15 nodes
TM1812 you can cut every 4 nodes
TM1809 you can cut every 3 nodes

TM1812 looks good
Sean
Littleton, CO Latest releases http://nutcracker123.com/nutcracker/releases xLights/Nutcracker Forum http://nutcracker123.com/forum/index.php Facebook [url=https://www.facebook.com/groups

arw01

Just another option coming on line over at diyc, another electrical engineer having some custom flex strips made up with a built in data return from the bottom of the strips and possibly tooling a connector to do all the dirty work:

http://doityourselfchristmas.com/forums/showthread.php?31186-Manufacturing-a-new-style-of-ws2812-LED-strip-Thoughts


arw01

Since a few of us will be likely building these, and ordering some other items from Ray, is there enough of us now to save some money if we all pile onto a single order and split the china shipping and cover our own from a central point out to ourselves for personal orders?

I got a quite last night for some custom 50mm spacing on TM1804 nodes, and the shipping alone is $56.00 before I add anything else to the order.  I figure if a half dozen or more of us pile in we have to save some money even with the re-ship?

David Pitts

In my experience the savings is not all that much. Plus it is hard to get everyone to order at the same time. I usually order in May or June. I ordered in first quarter one year only to see prices fall by 25% on TM1804 strings in April :(. But I am not against using this forum to organize something as long as it is from Ray.
PixelController, LLC
PixelController.com

arw01

Has that been a pattern, or a fluke?  From the pre-sale threads it seemed most had seen some price drop already ordering now from their suppliers, I could wait, certainly, if you think they really may drop down again.  Would that chip be getting close to the end of it's life since we have seen at least 4 introductions in the last quarter to new and currently available products?

arw01

Quote from: smeighan on January 08, 2014, 02:25:39 PM
my megatree is made of 1809s, $42 for 4m
These are $40 for 5m. Each pixel individually addressable. I am thinking of getting some of these to make the iciciles for this next year

http://www.aliexpress.com/store/product/5m-DC12V-INK1003-led-pixel-srip-IP68-30pcs-1002led-5050-RGB-with-bulit-in-INK1003-IC/701799_1546255452.html

Sean did you get these in and do they work?  I see on a thread at DIYC.COM that 1 fellow is having trouble with an E682 and sent the string off to Jim at san devices to diagnose..


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