SeeFromSpace Posted March 3, 2021 Share Posted March 3, 2021 Greetings, just designing a new Bethlehem RGB star prop. This is my first try at doing RGB. I have done LOR AC shows for the past couple of years. I have a pixcon16 controller which I have not used as yet. I want to use a number of hi count LED strip lights. I have been looking at ws2812B 5V strip lights with a count of 96 LED's per meter. The longest leg on my star would take 136 LED's. I calculated the wattage for 136 LED's at 40.8 watts or 8.16 amps. Of course the pixcon16 is fused at 4 amps per port. My question is - do I have to break the 136 LED's to a couple of pixel ports or will power injection at one or two points along the strip reduce the load on that pixcon16 4 amp fuse? Link to comment Share on other sites More sharing options...
KYHI Posted March 3, 2021 Share Posted March 3, 2021 (edited) Any certain reason for using 5 volt over a 12 volt strip ?? 5V x 4A = 20 watts <or> 12V x 4A = 48 watts Edited March 3, 2021 by KYHI Link to comment Share on other sites More sharing options...
SeeFromSpace Posted March 3, 2021 Author Share Posted March 3, 2021 I thought that the ws2812b strip was only available at 5v. I know that the ws2811 strips are available at 12 v but are often controlled in three LED groups. So would love to hear if the ws2812b strips are available in 12v Link to comment Share on other sites More sharing options...
dibblejr Posted March 4, 2021 Share Posted March 4, 2021 (edited) 2 hours ago, SeeFromSpace said: I thought that the ws2812b strip was only available at 5v. I know that the ws2811 strips are available at 12 v but are often controlled in three LED groups. So would love to hear if the ws2812b strips are available in 12v ws2813b will be the 12v version. I have some 13's that are 12v however the same mfg i have has an upgrade its ws2811 15 (didnt look right when I put all of the 1's together) Rechecked my numbers with a magnifier, mine are 15's as well. Not 13's. Was going to use them on some small versions of singing faces but i found 5mm nodes instead. JR Edited March 4, 2021 by dibblejr Link to comment Share on other sites More sharing options...
SeeFromSpace Posted March 4, 2021 Author Share Posted March 4, 2021 And you say a ws2813 will operate on a pixcon 16? My understanding is that the ws2813 has two data lines that make it able to bypass a burnout pixel. If you can use a ws2813 on a pixcon16 how do you wire it. Thanks Link to comment Share on other sites More sharing options...
KYHI Posted March 4, 2021 Share Posted March 4, 2021 (edited) https://www.seeedstudio.com/blog/2019/02/14/ws2812b-vs-ws2813-addressable-rgb-led-strips-how-are-they-different/ the WS2815 are the 12 volt version - has 2 data lines - 1 of them is a Backup Would assume you would connect both Data inputs to the same controller terminal.. https://www.amazon.com/BTF-LIGHTING-Upgraded-Individually-Addressable-Waterproof/dp/B07LG54F4W?ref_=ast_sto_dp Edited March 4, 2021 by KYHI Link to comment Share on other sites More sharing options...
SeeFromSpace Posted March 4, 2021 Author Share Posted March 4, 2021 The WS2815 does have two data lines, but they are labeled data IN and data OUT. Not sure if that means they are somehow duplicate. Also there is a different refresh rate between the WS2812 and WS2813/WS2815. The true test is if someone out there is actually using WS2815 12v strips on a pixcon16. Or perhaps someone from the LOR company Genius Bar could chime in. But still interested in my original question. If I end up using 5v strip pixels does power injection have any effect on the 4 amp fuse on a pixcon16? Link to comment Share on other sites More sharing options...
dibblejr Posted March 4, 2021 Share Posted March 4, 2021 1 hour ago, SeeFromSpace said: The WS2815 does have two data lines, but they are labeled data IN and data OUT. Not sure if that means they are somehow duplicate. Also there is a different refresh rate between the WS2812 and WS2813/WS2815. The true test is if someone out there is actually using WS2815 12v strips on a pixcon16. Or perhaps someone from the LOR company Genius Bar could chime in. But still interested in my original question. If I end up using 5v strip pixels does power injection have any effect on the 4 amp fuse on a pixcon16? If you add an inline fuse from the PI psu you should be fine. The PI fuse will blow before a surge gets back to the controller fuse. JR Link to comment Share on other sites More sharing options...
dibblejr Posted March 4, 2021 Share Posted March 4, 2021 BTW- there will be a Power Injection For Dummies class at the Virtual Summit in April. The one and only John Storms will be teaching. 2021 Virtual Christmas Summit JR Link to comment Share on other sites More sharing options...
SeeFromSpace Posted March 4, 2021 Author Share Posted March 4, 2021 Hey thanks for the info! Had no idea these virtual classes existed. Now I’ve got to figure out how to use zoom! 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now