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Post by Anthony on Jul 21, 2017 21:00:36 GMT
I was interested in purchasing a DreamScreen 4k and wanted to know if higher density LED strips could be used. Would this enhance the effect? Would LED that were closer together better match the color schemes of the TV? Does the DreamScreen accept input from the user as to the number of LEDs that make up the top, bottom, left and right of the screen?
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Post by freddy on Jul 22, 2017 6:10:28 GMT
The DreamScreen DIY currently will work with WS2812B, SK6812, APA104, and WS2813 digital LED lights. Yes, you could use the 60LEDs/meter WS2812B strips, instead of the 30 LEDs/meter versions, it supports those. And yes, in the DreamScreen TV app you can specify the number of LEDS at the top/bottom and left/right (you can already install the demo version of that app in the Google/Apple app store).
Higher density LED strips are worth it for smaller size TVs. For larger size TVs, the extra LEDs will not matter much in terms of lighting. Also, there is a hardware limit: The new DreamScreen models (HD/4K) have 2 LED connector ports, supporting upto 150 LEDs per port, upto a maximum of 250 LEDs total. So if you want to use higher density LED strips (60 LEDS/meter), you can have just over 4 meter in total, which should be enough for a 55" TV, or a 60" TV with a small gap.
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Post by Anthony on Jul 24, 2017 13:52:32 GMT
Would you say the effect is enhanced with denser LEDs on larger TVs? It would occur to me that the closer the LEDS are to each other, the stronger the connection will be to the LED color and the image on the screen. I could see some possible issues with color mixing perhaps. Was looking for insight.
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Post by freddy on Jul 25, 2017 6:49:28 GMT
Well, you're not looking directly at the LEDs, you're looking at the light that the LEDs produce behind your TV. So yeah, while the LEDs themselves would have a stronger connection to the images on the screen if they are closer together, the visual effects (indeed, due to color mixing) would not really make much of a difference for larger TVs, as the LED strips already produce so much light. Then again, even with color mixing, higher density doesn't make things worse either. But as I said, there's also a hardware limit of 250 LEDs max in the DreamScreen HD/4K hubs, so higher density with large TVs isn't really an option at the moment.
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Post by drdoom2k on Sept 13, 2017 12:41:31 GMT
Hi freddy, just quickly jumping into this topic. Any chance that my current APA102 set (ex-Lightberry set) might work flawlessly with the DIY 4k set (as you mentioned compatibility with APA104).
Thanks!
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Post by freddy on Sept 14, 2017 6:35:06 GMT
Someone else asked the same question (support for the APA102) in the Kickstarter comments section, and Rakesh told him "The DreamScreen DIY currently will work with WS2812B, SK6812, APA104, and WS2813 digital LED lights."... so I assume that's a "no". I hope Kyle or Rakesh will correct me if I'm wrong.
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Post by drdoom2k on Sept 15, 2017 16:34:13 GMT
Thanks, Freddy. Would be great to get this confirmed as I am just slightly concerned regarding the DS 4k LEDs that it will be shipped with. What exact model / LEDs are these (if known)?
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Post by ral67 on Sept 17, 2017 17:39:32 GMT
Someone else asked the same question (support for the APA102) in the Kickstarter comments section, and Rakesh told him "The DreamScreen DIY currently will work with WS2812B, SK6812, APA104, and WS2813 digital LED lights."... so I assume that's a "no". I hope Kyle or Rakesh will correct me if I'm wrong. just make sure that you do NOT get 4-LED RGBW (extra white LED besides red/green/blue) - DreamScreen doesnt support them a sign for incompatibility is 4-pin - these are analog but DS needs 3-pin digital LEDs another sign for incompability is if the LEDs need 12V - the DS supported ones are all 5V
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Post by drdoom2k on Sept 18, 2017 8:20:13 GMT
Thanks, ral, will check during the week. One more thing regarding the Flex vs. Strip LEDs - any difference in regards to voltage, power, light they produce? Also, does the 'full-package' 4k kit eventually comes with a DIY cable included (i.e., is it detachable from the supplied LEDs)? That would allow a for a bit of experimenting.
Thanks!
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Post by lab714 on Sept 18, 2017 15:06:01 GMT
Hello, The Flex, Classic, Mega and Xtreme use the SK6812RGB LEDs. The APA102 is not compatible with the DIY kit or DreamScreen. WS2812B, SK6812RGB, WS2813, APA104 can be used. A picture of the DIY cable is attached here. The manual with more info of DIY can be located here: www.dreamscreentv.com/wp-content/uploads/2017/09/dreamScreen-international-manual.pdfThe DIY is a great way to customize the design and extract higher brightness etc from DreamScreen in a cost-effective fashion. The compatible LEDs can be purchased from eBay or Amazon at very attractive prices. LEDs like WS2812B can be used in parallel - ie two strings can receive data from the DIY cable allowing for you to double the brightness. Alternately, higher density LEDs may also be used. Care has to be taken to not source more than 150 LEDs from one DreamScreen LED port. If more than 150 LEDs are used, an external 5V supply may be used on the string. We are going to publish a few videos on how to use the DIY set with Projectors, multiple screens etc. We will also offer DIY cable as an accessory on the new website launching next month. In meantime please write to us if you need one added to your order. Best Regards DS Team Attachments:
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Post by ral67 on Sept 18, 2017 18:50:24 GMT
thanks for the info when using two strips in parallel - does the 250 max LEDs per DS still apply ? Or could I theoretically use 2x 250 LEDs in parallel when using an external PS ?Or at least 2x 150 in parallel without ext. power supply?
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Post by Admin on Sept 19, 2017 17:06:07 GMT
Yes, the limit still applies when using the lights in parallel. Each LED output on the DreamScreen Hub can support up to 150 individual LEDs.
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Post by ral67 on Sept 19, 2017 21:32:26 GMT
2 * 150 >> 250
does the 250 limit also apply when using both ports or could we connect 300 LEDs ?
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Post by Admin on Sept 19, 2017 21:42:20 GMT
The 250 limit still applies when using both ports.
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Post by socrates on Oct 2, 2017 21:51:54 GMT
Hello, The Flex, Classic, Mega and Xtreme use the SK6812RGB LEDs. The APA102 is not compatible with the DIY kit or DreamScreen. WS2812B, SK6812RGB, WS2813, APA104 can be used. A picture of the DIY cable is attached here. The manual with more info of DIY can be located here: www.dreamscreentv.com/wp-content/uploads/2017/09/dreamScreen-international-manual.pdfThe DIY is a great way to customize the design and extract higher brightness etc from DreamScreen in a cost-effective fashion. The compatible LEDs can be purchased from eBay or Amazon at very attractive prices. LEDs like WS2812B can be used in parallel - ie two strings can receive data from the DIY cable allowing for you to double the brightness. Alternately, higher density LEDs may also be used. Care has to be taken to not source more than 150 LEDs from one DreamScreen LED port. If more than 150 LEDs are used, an external 5V supply may be used on the string. We are going to publish a few videos on how to use the DIY set with Projectors, multiple screens etc. We will also offer DIY cable as an accessory on the new website launching next month. In meantime please write to us if you need one added to your order. Best Regards DS Team Thanks for the above info.. I am a little bit confused, hence had to quote you and ask you about the DIY led's. I have a 85" 4K TV mounted on a TV stand, the TV's backpanel is about 2 feet far from the wall.. hence i will be needing brighter led's so that DS can beam the lights on the wall with its full glory. I plan to use the side kicks as well.. but because I am going the DIY route i would like to choose the brightest LED's that DS can support. As you mentioned " LEDs like WS2812B can be used in parallel - ie two strings can receive data from the DIY cable allowing for you to double the brightness." Do you mean attaching two strips of led's running parallel to each other throughout the four sides in the back of the TV? Please correct me if i understood it incorrectly. Also, if that is what you meant, how do i go about connecting the second led strip to the DS controller? Is there an option in the DS controller to attach the second connector pin? Any pics on this matter is appreciated. Also, will the WS2812B be the best bet, the brightest? If i do buy one of the above mentioned LEDs from amazon.. do these led strips have the connector pin to connect to the DIY connector cable provided to you. To make it clear, does the DIY cable come with the female/male connector pin to attach to your male/female connector pin for the DS kit?
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