Minimalistic multichip DIY LED build

[BeanAnimal]

The center tab is typically the wiper and the 2 outside tabs are the fixed endpoints. That is, there will be a fixed resistance between the two outside tabs and a variable resistance from the center tab to either outside tab.

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[noplay180]

So I could use either outer tab

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[Lassef]

Yes - but you will have a reverse effect compared to which you connect to.

Sincerely Lasse

 

[nettraptor]

Dream led owners....
is the dream led doing any deference in growth of SPS corals?

 

[BeanAnimal]

Yes, but as resistance between the left and center increase, resistance between the right and center decrease, and visa versa. You want to wire it so that you get the expected results when you turn the knob. Right = brighter, Left = dimmer.


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[noplay180]

Ok thanks, now My driver is now warmer than usual

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[BeanAnimal]

Could be magnetic feedback from that SPH-L710? (hint: Turn off the tapatalk advertisement, nobody cares what phone you are using).

You say "warmer than usual".... I am not sure any of us have a frame of reference to what "usual is". Also, under what circumstances is it "warmer". I am afraid you are going to need to provide a bit (maybe a lot) more context... and to that end, it may be best to start a thread in the DIY forum asking for help.

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[noplay180]

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[marspeed]

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Sent from my Apple 2 using CAT-II acoustic coupler and Sup'R'Terminal
Sent From my TRS-80 using Terminal

now i get it

 

[noplay180]

Thanks to all. It was the driver.

 

[acabgd]

Dream led owners....
is the dream led doing any deference in growth of SPS corals?

Too early to tell. I've had mine for like 10 days (maybe 2 weeks) but I really cannot give a reply so soon.

 

[tomservo]

Same here, it hasn't been long enough to draw any conclusions, that said, I can definitely say my acropora frag has grown since the changeover. My montipora are not all that happy with the recent light increase - I currently have the caps shaded as they were bleaching. The monti australiensis seems to be happy with the increase as well. Last time I increased the light (with the old light) by a similar amount the green monti cap wasn't so happy but that coral has been sensitive from day 1.

My lights are on a 10 hour cycle with a ~3/4 hr ramp at each end.

 

[nettraptor]

My lights are on a 10 hour cycle with a ~3/4 hr ramp at each end.

how do you achieve that? arduino?

 

[007Bond]

Hello

 

[leedoherty]

Hi !

 

[007Bond]

We must be the last

 

[leedoherty]

Think so bud be a real shame

 

[acabgd]

After all the technical info it is time to check on whether the DreamChip is actually beneficial to corals.

I zeroed on my birdsnest from the beginning as it sits almost right under the light and is in the middle of the tank, easy to photograph right through the glass.

The first photo was made on November 11, the second one Today, meaning exactly two weeks later.





Birdsnest was sitting under T5 lights at my LFS so it needed some time to acclimate to the new DreamChip. This went fine, just as with the other corals. As you can see from the two photos there is a nice amount of growth seen after only two weeks and the coral looks happy.

I hope to be able to document growth of other corals as well and keep track of (hopefully) further progress with the DreamChip.

 

[007Bond]

What are you running the DC at?

 

[leedoherty]

Looks to be doing well just ordered the 50 chip version will see how it go's