Author Topic: WS2811 vs TM1804 rgb nodes  (Read 2179 times)

Offline taybrynn

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WS2811 vs TM1804 rgb nodes
« on: January 11, 2016, 11:22:46 AM »
I currently ONLY have TM1804 rgb (bullet/12mm) nodes ... and a few TM1809 strips ... all from the old DLA wiki approved list.

It appears WS2811 is far more common now.

I have a lot of DLA active and passive hubs ... and am moving into Falcon f16v2 this year.  I will have a mixture of hardward, but right now
all I drive are tm1804 nodes/pixels.

If there is no big advantage of the 2811 over the 1804 ... besides cost ... I'd probably stay with the 1804 to be consistent and simple.

I'm probably getting pretty close to my last year or two for expansion also, so a complete switch to 2811 isn't even financially possible.

Any comments on pros/cons between the two chipsets, if any exists?  Right now the cost is $.30 per node for TM1804 and $.25 for WS2811.

Does anyone prefer the black wire over the traditional reg, green, blue wires?  How do you tell which is which?

Thanks in advance,
Scott

Offline JonB256

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Re: WS2811 vs TM1804 rgb nodes
« Reply #1 on: January 11, 2016, 07:15:10 PM »
I've never mixed WS2811 or TM1804 pixels side by side or even spliced together. Not sure how they compare for brightness or color accuracy.

But - I have used a bunch of black wire WS2811 12mm pixels. First thing I did was put a small zip tie on the +12vdc leads. Once done, it was pretty easy - The data line is the center wire. The third wire is ground. There was no stripe or other marking on the wires, but the vendor did clearly mark one of the strings and put that on top of the packaging. (ScottLED) Since these were 100% black, I couldn't even look at the circuit boards for Input or Output.

Offline jnealand

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Re: WS2811 vs TM1804 rgb nodes
« Reply #2 on: January 11, 2016, 07:57:28 PM »
I have mostly TM1804, but last year I bought 200 nodes from DIYLEDExpress to use in some Boscoyo snowflakes.  Then I was offered 1000 new 2811s by someone selling off their display.  I promptly blew out two 100 ct strings by hooking them up wrong.  They may still be partially good, but I just put them aside and have not looked at them yet.  But once I hooked them up properly they work just fine.  Then I purchased 300 new 2811s from pixelsequencing.com partially because I was able to drive there and pick them up for no shipping cost.  They worked good and I bought another 300.  I'm looking at some more pixels for 2016 and am thinking I will just order them from Ray since I can get longer spacing between nodes.  So bottom line 2811 at .25 each saves me money, they work fine with both Falcon and Lynx, and I'm not sure I can see the difference, but I do segregate them by prop type (mega, mini, arch, etc) although they are all in the front of the house.
Jim Nealand
Kennesaw, GA all Falcon controllers, all 12v Master Remote Multisync with Pi and BBB P10 and P5

Offline Jeffl

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Re: WS2811 vs TM1804 rgb nodes
« Reply #3 on: January 11, 2016, 08:25:55 PM »
DIY LED Express has slightly longer spacing on nodes at just a little over 4" compared to 3" of others.  I can't stand RGB wires so I'm glad I can get them in green and white wire.  I use a black marker when splicing wires to mark the ground.  Data I think has always been in the center.  And heat shrink comes in colors so it's perfect. :)

Offline zwiller

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Re: WS2811 vs TM1804 rgb nodes
« Reply #4 on: January 11, 2016, 11:47:19 PM »
The 2811 color is soooo much better!!!  You need to get rid of the 1804's and send to me for proper disposal.   ;D

For a nickel per node I'd stay with 1804.  There is a slight difference between the 2 but it is minor.  With full on of RGBW (255 etc) no difference but in between is where it varies.  You'd only notice if you went side by side.  Maybe someone will eventually figure it out and write light curves or something.  I was given some minleon strings (ink3002?) and will tell you there is a big difference with these versus 2811/1804.  Secondary colors like orange, purple, yellow are very much improved but I think 3-4x cost.  Build quality is much improved too: wire is in silicone sleeve/connectors are perfectly formed(mate with ease)/all sorts of mounting options.  The Minelon is clearly the professional option.   

I am with Jeffl, spacing seems to have become smaller recently.  I prefer the 4".   

Sam
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Offline tbone321

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Re: WS2811 vs TM1804 rgb nodes
« Reply #5 on: January 12, 2016, 09:34:43 AM »
I think that the color difference has much more to do with the LED's being used in the different pixels than the controller chip.  An LED's color is created by its chemical makeup and due to patents, every manufacturers is slightly different.

Offline twooly

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Re: WS2811 vs TM1804 rgb nodes
« Reply #6 on: January 12, 2016, 09:57:32 AM »
I've got a mix, mostly 2811s now.  One thing I've noticed, probably because my 1804s are now 4 years old but the wiring is a much higher gauge than the 2811s I have.  Actually kind of a pain to work with after working with the 2811s so much.  Other thing, which I'm sure is an option now is I get my 2811s all with green wiring now vs the multicolor, looks better.  Knowing which wire isn't that bad on the 2811s I have since I can still see the pcb but as long as you know the wiring diagram (any vendor should be able to give it to you) then you'll be fine.

Offline taybrynn

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Re: WS2811 vs TM1804 rgb nodes
« Reply #7 on: January 19, 2016, 03:11:12 PM »
I'm 99% sure I'll just stay with tm1804 since there is NO way I'll be changing those out on my budget.

I may need to request 3.5 or 4" spacing from Ray just to make sure.  Had anyone request AWG18 wire?

if so, how much more was it?

 

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