Author Topic: Wiring up a boscoyo ChromaStar 23"  (Read 409 times)

Offline TxTyphoon

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Wiring up a boscoyo ChromaStar 23"
« on: December 26, 2018, 04:59:45 PM »
This was the first year for us to have a pixel display. We kept it simple with a single 220 degree megatree with 16 strands of 50. It was topped with a 23" ChromaStar. I also have 2 DayCor 48 pixel candy canes and a large 50 pixel arch. I'm using a F16 and FPP as a controller. I want to add 9 more stars to my display next year. The problem is the way I wired the star I have it is using 3 channels, one for each ring of pixels. This seems very inefficient. How have you wired up stars to minimize channel usage? I used a single channel on the candy canes and zig-zagged them like I did on the megatree.

Speaking of the megatree, I'm using 8 channels for it, with 2 50 strands per channel with a zig-zag. Can I reduce the channel usage on it too by combining more strands? Say 4 or 8 strands of 50 per channel? Any down sides? How would it impact the sequences I've already done? I'm using Vixen BTW.

Any other tips or tricks?
Brian
 

Offline jnealand

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Re: Wiring up a boscoyo ChromaStar 23"
« Reply #1 on: December 27, 2018, 08:28:13 AM »
Do not confuse a channel with an output / port.  Terminology can be important when you are asking for advice.

A channel is something that can be turned on and off and (usually) dimmed. 

A port or output is something you connect to. 

A string (logical) is what is connected to a port and can be made of multiple physical strings. 

A strand is a change in direction of a string in a megatree or matrix.
Jim Nealand
Kennesaw, GA all Falcon controllers, all 12v Master Remote Multisync with Pi and BBB P10 and P5

Offline TxTyphoon

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Re: Wiring up a boscoyo ChromaStar 23"
« Reply #2 on: December 27, 2018, 09:57:21 AM »
Thanks! That's a good point. I've tried to updated my OP below to reflect the proper terms and added some detail for clarity...
This was the first year for us to have a pixel display. We kept it simple with a single 220 degree megatree with 8 strings (2 strands of 50 @5v). It was topped with a 23" ChromaStar. I also have 2 DayCor 48 pixel candy canes and a large 50 pixel arch. I'm using a F16 and FPP as a controller. I want to add 9 more stars to my display next year. The problem is the way I wired the star I have it is using 3 outputs on the F16, one for each string (40,30,20) of pixels. This seems very inefficient. How have you wired up stars to minimize channel usage? I used a single output on the candy canes and zig-zagged them like I did on the megatree. I'm using a total of 14 outputs on the F16 (8 for the tree, 3 for the start, 1 for the arch, and 2 for the candy canes)

Speaking of the megatree, I'm using 8 outputs for it, with 2 50 pixel strands per string with a zig-zag per output. Can I reduce the channel usage on it too by combining more strings/strands? Say 4 or 8 strands of 50 per output? Any down sides? How would it impact the sequences I've already done? I'm using Vixen BTW.

P.S.  As I have thought about this more I think I understand how to do it. I'll mock it up in Vixen and report back. I think I can just treat the star as a string with 3 strands and power inject each strand independently.  Then in Vixen I can tie each strand to the star element I have defined.

 

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