DiyLightAnimation

Hardware => Lynx Smart String => Topic started by: smeighan on April 29, 2013,

Title: 1829 flex strips from ray
Post by: smeighan on April 29, 2013,
I think i will get some of these new 1829 flex strips from ray.

http://www.aliexpress.com/store/product/TM1829-strip-5m-DC12V-30leds-m-10pcs-TM1829-IC-meter-10pixels-led-digital-strip-waterproof-in/701799_854429437.html

$6.40/m is 50% less than what i paid last year for the 1809's.

Title: Re: 1829 flex strips from ray
Post by: zwiller on April 29, 2013,
I wish he made a 15 led/m flex strip. 
Title: Re: 1829 flex strips from ray
Post by: arw01 on April 29, 2013,
Why that one vs one on Ebay?  Just curios as i wait for the DSC coop to arrive and the SSC coop to begin.  Have to decide what to buy sometime..
Title: Re: 1829 flex strips from ray
Post by: DanHouston on April 29, 2013,
Are all strips controlled in groups of 3 LEDs....I thought I saw in the video of the ones in the wiki each led on the strip was controllable?
Title: Re: 1829 flex strips from ray
Post by: zwiller on April 29, 2013,
No; There are a couple different strips.  The strips I have/the ones in wiki are each individually controlled. 

Basically it's a difference of $16.40/strip due to the 4m vs 5m.  It is a substantial cost difference.  The 3led strip is a very good value.  Besides keeping cost down, the 3 led per IC strips will keep your channel count down making sequencing a bit simpler.  It's all about your intended effects.  I totally admit most of the time it's not necessary but the twinkle effect on my strips is unbelievable.  If you plan on any matrix stuff I think you would need individual control as well.
Title: Re: 1829 flex strips from ray
Post by: galgon on April 29, 2013,
Please pardon my ignorance but I am still working through the learning curve with all of the RGB gear. 

This is a "smart" strip not a dumb one correct? What is the difference between the 1829 chip in this one and the 1809 chip in the smart strings in the wiki?  With this being 5 meters instead of 4 wont it go over the max capacity of the smart string controller?
Title: Re: 1829 flex strips from ray
Post by: rdebolt on April 29, 2013,
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Please pardon my ignorance but I am still working through the learning curve with all of the RGB gear. 

This is a "smart" strip not a dumb one correct? What is the difference between the 1829 chip in this one and the 1809 chip in the smart strings in the wiki?  With this being 5 meters instead of 4 wont it go over the max capacity of the smart string controller?


The 1809 chip controls every node. The 1829 controls 3 consecutive nodes.
Title: Re: 1829 flex strips from ray
Post by: JonB256 on April 29, 2013,
The pictures shows a 4-wire setup rather than the 3-wire used by TM1804 and TM1809.

Is the picture accurate?

Then the actual strip, at the cut points, only shows 3 lines. 
Title: Re: 1829 flex strips from ray
Post by: rdebolt on April 29, 2013,
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The pictures shows a 4-wire setup rather than the 3-wire used by TM1804 and TM1809.

Is the picture accurate?

Then the actual strip, at the cut points, only shows 3 lines. 
..

I'm not seeing what you are seeing. That could be because I am blind, but I only see 3 wires.
Title: Re: 1829 flex strips from ray
Post by: smeighan on April 29, 2013,
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Please pardon my ignorance but I am still working through the learning curve with all of the RGB gear. 

This is a "smart" strip not a dumb one correct? What is the difference between the 1829 chip in this one and the 1809 chip in the smart strings in the wiki?  With this being 5 meters instead of 4 wont it go over the max capacity of the smart string controller?


The 1809 chip controls every node. The 1829 controls 3 consecutive nodes.

I think this is incorrect.

The 1829 says "30leds/meter,10 IC's/m, each 3LEDs separately controlled"

Since it says 30 leds/m and 10 ics/m, the same as the 1809, i think you can individually control every pixel. These flex strips , i believe, will have 150 nodes on them to control.

i will see what ray says in response to my ping to him.
Title: 1829 flex strips from ray
Post by: rm357 on April 29, 2013,
If its the right picture, that 1829 chip only has 8 leads. Power, ground, data in, data out, that only leaves 4 leads. I would assume r, g, b, and a no connection...

That strip is controlled in groups of three - if its the right picture...

The 1809 and 1812 chips have more leads on them.
Title: Re: 1829 flex strips from ray
Post by: smeighan on April 30, 2013,
you are right, this new one has an 8 pin IC, the 1809 has a 14 pin IC.

Groups of 3 will make the geometry better. The 1.3" vertical spacing skews the text because the spacing between strands is 5-8".

so this will use 50 nodes or 150 channels instead of 450 channels. I believe i will rebuild my megatree so it is 5m high instead of 4m, like last year.


there is near identical ws2811 12v, 5m flex string from ray
Title: Re: Re: 1829 flex strips from ray
Post by: JonB256 on April 30, 2013,
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The pictures shows a 4-wire setup rather than the 3-wire used by TM1804 and TM1809.

Is the picture accurate?

Then the actual strip, at the cut points, only shows 3 lines. 
..

I'm not seeing what you are seeing. That could be because I am blind, but I only see 3 wires.

I was looking at power supply and the controller hookup. It looks like 2 black wires. Perhaps Ray is jumpering the grounds. 


Title: Re: Re: 1829 flex strips from ray
Post by: smeighan on April 30, 2013,
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The pictures shows a 4-wire setup rather than the 3-wire used by TM1804 and TM1809.

Is the picture accurate?

Then the actual strip, at the cut points, only shows 3 lines. 
..

I'm not seeing what you are seeing. That could be because I am blind, but I only see 3 wires.

I was looking at power supply and the controller hookup. It looks like 2 black wires. Perhaps Ray is jumpering the grounds.

The TM1829 strings show the electronics and it is 3 wires.

http://www.aliexpress.com/store/product/TM1829-LED-pixel-light-DC12V-input-100pcs-a-string-1-6MHz-high-speed-256-gray-scale/701799_597338129.html

Title: Re: 1829 flex strips from ray
Post by: jnealand on April 30, 2013,
The link above goes to nodes and not to flexstrips, but the link at in post 1 goes to a flexstrip.
Title: Re: 1829 flex strips from ray
Post by: smeighan on April 30, 2013,
yeah i know, i was including a link to the TM1829 chip set. i plan on getting flex strips, but the flex strip link didnt sho wthe electronics as well as the link t pixels. I assume the exlectronics is the same?
Title: Re: 1829 flex strips from ray
Post by: chrisatpsu on April 30, 2013,
the TM1804 chip is a 400/800MHz chip (in our situation needs to run at 800MHz

the TM1829 chip is a 800/1600MHz chip (unknown what effects 1600MHz would have)

both chips only have 3 PWM outputs, for R,G, and B.

1804 - 3 channels
1809 - 9 channels
1812 - 12 channels
1829 - 3 channels
Title: Re: 1829 flex strips from ray
Post by: JonB256 on April 30, 2013,
Chris, when it says 400/800 or 800/1600, is that a "range" of frequencies or the "two frequencies" they will run?

Since you say the SSCs are running at 800, they "should" work with the TM1829. 

Anyone actually tried? 
Title: Re: 1829 flex strips from ray
Post by: chrisatpsu on May 01, 2013,
there is a pin on the chip that you either connect to something, or you don't on the 1804 chip.
when it's connected, it's 400MHz, when it's not connected, it's 800MHz

for our stuff, it's not connected.

I've only quickly glanced at the stuff on the 1829 IC.
if it's set for 800MHz, then in theory it has a better chance of being compatible that if it was set for 1.6GHz

This is that grey area of be carefull what you buy from Ray when you go outside what's in the wiki. If someone new comes across a thread like this (and not knowing about the wiki) and thinking those are the lights to buy, then they put all their money into it with a possibility of it not working.

I don't know for certain, until it's connected to my stuff.

If someone recommends stuff that it works with their hardware. It doesn't make it a lock -in that it will work my stuff.

The best advice I can give is that if you think this is what you want. order a small sample, then test it before placing a bigger order.

Title: Re: 1829 flex strips from ray
Post by: rrowan on May 01, 2013,
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The best advice I can give is that if you think this is what you want. order a small sample, then test it before placing a bigger order.

Words to live by for ordering un-confirmed Lights  ;D

Rick R.
Title: Re: 1829 flex strips from ray
Post by: zwiller on May 01, 2013,
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The best advice I can give is that if you think this is what you want. order a small sample, then test it before placing a bigger order.

Words to live by for ordering un-confirmed Lights  ;D

Rick R.

+1
Title: Re: 1829 flex strips from ray
Post by: taybrynn on May 01, 2013,
While I know this is an expensive hobby and the temptation to save money is real and very understandable -- my own experience has been that staying with the KISS principle and not getting into new or untested technologies ... either in terms of hardware or lights ... can really save a lot of headaches down the road.  I know that others are braver (and smarter) than me and have no problem dealing with the issues that might show up ... but my advise to most people reading this is to stay with the WIKI approved lights and hardware whenever possible, because being on the bleeding edge because your trying to save some money ... can often be a bad investment when you add it all up at the end.  Just my $.02 worth, nothing more.    Sean, btw, thanks for talking about this ... as 50% savings IS rather temping, to be sure.
Title: 1829 flex strips from ray
Post by: rm357 on May 01, 2013,
Another point, with the grouping in the new ssc, you can easily program groups of 3 LEDs when you want them that way. With the 1829 strips, you will never be able to address each node or do sets of 4... You better be saving a lot, because you really are sacrificing capability...
Title: Re: 1829 flex strips from ray
Post by: JonB256 on May 02, 2013,
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I wish he made a 15 led/m flex strip.

http://www.aliexpress.com/store/product/5m-TM1809-dream-color-strip-30leds-m-in-silicon-tube-10pcs-TM1809-IC-each-meter/701799_693754057.html

From Ray WU, but not listed in the Wiki because it is 5m.  It might be too much current for an SSC. These would be addressable down to each 5050. If "resolution" is the higher concern over cost, this is the 5meter solution.
Title: Re: 1829 flex strips from ray
Post by: arw01 on May 02, 2013,
Those list as an IP67.  Am I correct that one should really NOT have those out where they get rained on, vs hiding up under an eve or gutter where they are basically dry anyways?

And if I am not mis-understanding, which happens a lot with this RGB stuff, when you say each led on the node can be addressed or grouped, are you saying there are 150 nodes if your group them, but if you do not, then you have 450 individual leds to control and 150 each of those is RGB so you could have extremely fine control like flashing the red led while the blue and green make a color on their own?

Could be some interesting effects.

Alan
Title: Re: 1829 flex strips from ray
Post by: urthegman on May 02, 2013,
Alan, IP67 is pretty good coverage although IP68 is ideal. Because the LEDs  are so close, the colors will blend to make another color.
Title: Re: 1829 flex strips from ray
Post by: smeighan on May 02, 2013,
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Those list as an IP67.  Am I correct that one should really NOT have those out where they get rained on, vs hiding up under an eve or gutter where they are basically dry anyways?

And if I am not mis-understanding, which happens a lot with this RGB stuff, when you each led on the node can be addressed or grouped, are you saying there are 150 nodes if your group them, but if you do not, then you have 450 individual leds to control and 150 each of those is RGB so you could have extremely fine control like flashing the red led while the blue and green make a color on their own?

Could be some interesting effects.

Alan

These are 150 nodes that are grouped into threes. This is identical to the 12v ws2811's that fast eddy used in his show.
The sequencers will address than as nodes 1-50.
Title: Re: 1829 flex strips from ray
Post by: arw01 on May 02, 2013,
One more question to clarify the grouping:

grouped like:

 *
**

or grouped like

 *     *     *
** -- **--**


to make a three.  So a 30 leds per meter has 30 individual led's with 3 of each color, or has 10 of each color over that meter?

And when you say grouped you mean 3 leds at each spot is a node, or three in a row (so 9 individual leds) are a node..
Title: 1829 flex strips from ray
Post by: rm357 on May 02, 2013,
These are RGB LEDs. One physical led contains a red, a green and a blue led within the piece of plastic. This allows you to do color mixing just like a pixel on the computer screen. This gives you the capability to generate over 16 million colors (24 bit color) on each node. In the strip in question, the nodes are grouped in sets of 3. Each node in the set is not addressable, all three nodes will display the same color. They're evenly spaced in a strait line.

So.
150 nodes in groups of three = 50 addressable elements.
...111222333444555666777888999000...
Each element requires 3 channels - one each for red, green, and blue = 150 channels.

Title: Re: 1829 flex strips from ray
Post by: arw01 on May 02, 2013,
Ok got that, so a 5050 node is different than these nodes?

How long are the three sets that are grouped into a node?  3" or something like that for each set of three?
Title: Re: 1829 flex strips from ray
Post by: chrisatpsu on May 03, 2013,
5050 is the size and shape of the led.

is each "section" of the flex strip, there are three led's per 1829 chip the 1829 chip can only control 1 each of a r,g,and b channel.

the red of all three leds are controlled together. (you turn on red, all three light up, you turn red down, all three turn down.)
the same with the rest of the colors.

each 3led section is independent of the other 3 led sections, but each three leds light up together.
Title: 1829 flex strips from ray
Post by: rm357 on May 03, 2013,
5050 doesn't tell you anything about how the led is wired on the inside. It's the physical dimensions of the box.

A 5050 can be all the same color, or it can have 2, 3, or maybe even 4 separate LEDs inside the box. The trick is that the actual light producing parts for a rgb led are physically close enough together to get decent color mixing with only a very small amount of color fringing... If that's the right word. Basically multi color shadows and color projections caused by the RG&B elements being three physically separate elements within the 5050 package.

50 mm wide by 50 mm long.