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Search: Keyword(s): ; Posts Made By: O2surplus
Forum: DIY   06-30-2016, 03:17 AM
Replies: 218
Views: 78,211
Posted By O2surplus
To get the frequency you need....divide 1,000,000...

To get the frequency you need....divide 1,000,000 by your desired frequency. i.e 1,000,000/ 2000 = 500.

Timer1.initialize(500); // 2000Hz PWM :grin2:
Forum: Lighting   06-15-2016, 02:25 AM
Replies: 38
Views: 1,569
Posted By O2surplus
Ahh.. now I get it? Gimme a few more details and...

Ahh.. now I get it? Gimme a few more details and I might be able to help you out. You want 8 channels with 3 yuji LEDs in series, a COB array smack dab in the middle, all on a 2.5" x 2.5" square?...
Forum: Lighting   06-14-2016, 10:54 PM
Replies: 38
Views: 1,569
Posted By O2surplus
Jeffkrol- Those unistar LEDs use the same...

Jeffkrol-
Those unistar LEDs use the same solder pad dimensions as the cree xp-g2. Check fleabay or cutter electronics for a pre-made bare PcB designed for the cree and solder in the unistar LEDs...
Forum: Lighting   03-10-2016, 12:48 PM
Replies: 13
Views: 812
Posted By O2surplus
I've been using the BlueFish "Mini" since it was...

I've been using the BlueFish "Mini" since it was released. It's been working flawlessly for me. Just the fact that it can be easily programmed to mimic the local weather conditions for any spot on...
Forum: Lighting   02-18-2016, 06:52 PM
Replies: 7
Views: 533
Posted By O2surplus
I use the cool white LEDs of my LED arrays as...

I use the cool white LEDs of my LED arrays as moonlights. They're controlled by my Bluefish Mini LED controller to follow the monthly moon phase. The controller allows a user defined maximum...
Forum: Lighting   01-17-2016, 04:21 PM
Replies: 128
Views: 5,877
Posted By O2surplus
Go with 6 to no more than 8 Vero 18's driven at...

Go with 6 to no more than 8 Vero 18's driven at 700ma. You won't be disappointed. I had twelve on my 225 and that was epic overkill. As for controllers, I've had them all. Check out the BlueFish...
Forum: DIY   12-18-2015, 04:03 AM
Replies: 16
Views: 1,009
Posted By O2surplus
I've built hundreds of CAT4101 based drivers over...

I've built hundreds of CAT4101 based drivers over the years. A 10K pot wired in series with a 569 ohm Rset resister works wonderfully. Since the 569 ohm resistance is the minimum the CAT's Rset pin...
Forum: DIY   12-17-2015, 11:33 PM
Replies: 16
Views: 1,009
Posted By O2surplus
The point being..... You don't have to replace...

The point being..... You don't have to replace the entire driver. A resistor swap is all that's needed. Going the extra mile by adding the pot makes the driver even more user friendly.

An audio...
Forum: DIY   12-17-2015, 07:19 PM
Replies: 16
Views: 1,009
Posted By O2surplus
Just an FYI... There's really no difference...

Just an FYI... There's really no difference between the 1000ma and 700ma drivers. A small Rsense resistor is used to "program" the driver for set current values. 569 ohms = 1000ma 768 ohms =...
Forum: DIY   12-16-2015, 06:24 PM
Replies: 16
Views: 1,009
Posted By O2surplus
Steve's led drivers use the OnSemi CAT4101 led...

Steve's led drivers use the OnSemi CAT4101 led driver IC in their design. The CAT4101 IC is a low side regulator. The driver needs to see between .5V &.8V over the led string voltage to operate...
Forum: DIY   11-29-2015, 11:42 PM
Replies: 12
Views: 843
Posted By O2surplus
SAGER Electronics has got 19 LDD-1500L in stock...

SAGER Electronics has got 19 LDD-1500L in stock for $5.69 each LDD-1500L Mean Well | Sager (http://www.sager.com/ldd-1500l-4636732.html)

Pair them with a single Vero 18,a 36V power supply and...
Forum: DIY   11-28-2015, 10:25 PM
Replies: 12
Views: 843
Posted By O2surplus
Ugh...yeah.. you're gonna need some serious DC...

Ugh...yeah.. you're gonna need some serious DC power. You can't go wrong with the Vero's the 90CRI 5000K and 97CRI 2700K. They're what I'm using over my 225. They'll produce a very Natural looking...
Forum: Lighting   10-31-2015, 05:42 PM
Replies: 6
Views: 638
Posted By O2surplus
The Flare led array is available for sale without...

The Flare led array is available for sale without having to buy one of Dave's gorgeous light fixtures. They're priced about $55 each.
Forum: Lighting   10-28-2015, 02:20 AM
Replies: 7
  Led ??
Views: 385
Posted By O2surplus
LOL- I've got only 12 leds to light my tank.>:) ...

LOL- I've got only 12 leds to light my tank.>:) Led technology has come a long way.....


http://i861.photobucket.com/albums/ab172/kovawa/Tank%20shots%205-31-2015%20005_zps8vjoryfv.jpg
Forum: Lighting   10-22-2015, 02:43 PM
Replies: 47
Views: 3,958
Posted By O2surplus
There's another lighting option available for...

There's another lighting option available for small tanks that most planted tankers don't know about yet. NanoBoxReef recently added a new "full spectrum" led array to their product line of custom...
Forum: Lighting   08-25-2015, 12:41 PM
Replies: 9
Views: 452
Posted By O2surplus
37 watts / 15V = 2.46 amps. Look for a 15V power...

37 watts / 15V = 2.46 amps. Look for a 15V power supply with around 3 amps of capacity. :)
Forum: DIY   08-16-2015, 03:52 AM
Replies: 45
Views: 10,210
Posted By O2surplus
Off the top of my head figures..... PcB...

Off the top of my head figures.....

PcB (100mm x 160mm, 2 oz copper, ENIG finish) $22.20 each

A6211 led driver @ $5 each X 6 = $30

SCW08C-12 @ $14 each X 2 = $28

Arduino Nano = $5
Forum: DIY   08-16-2015, 02:43 AM
Replies: 45
Views: 10,210
Posted By O2surplus
Ugh.... I think I'm done for awhile? (At least...

Ugh.... I think I'm done for awhile? (At least that's waht I keep telling myself _LOL)

Just finished swappin' in a couple of these to drive my Veros. No more LDD's for me!

Here's a few...
Forum: DIY   08-01-2015, 03:13 AM
Replies: 54
Views: 5,214
Posted By O2surplus
LOL- The meter is actually showing the RMS value...

LOL- The meter is actually showing the RMS value of the signal.......... just to be exact.:wink:
Forum: DIY   07-31-2015, 09:07 PM
Replies: 54
Views: 5,214
Posted By O2surplus
I think the OP meant 20/255 PWM steps out of the...

I think the OP meant 20/255 PWM steps out of the Arduino, but I could be wrong.
Forum: DIY   07-31-2015, 03:41 PM
Replies: 54
Views: 5,214
Posted By O2surplus
LOL- You should see how bright 12 of them are @...

LOL- You should see how bright 12 of them are @ 1400ma each. It's like staring directly at the noon day sun.
Forum: DIY   07-30-2015, 08:48 PM
Replies: 54
Views: 5,214
Posted By O2surplus
Gotta love the good looks of that Heatsink/Synjet...

Gotta love the good looks of that Heatsink/Synjet cooler combination! Excellent choice!
Forum: DIY   07-16-2015, 12:58 PM
Replies: 54
Views: 5,214
Posted By O2surplus
To answer your first question- It's alright...

To answer your first question-

It's alright that you don't know everything. This is what makes the Internet so awesome and why Online forums are so popular.... You can find the knowledge you...
Forum: DIY   07-15-2015, 12:37 PM
Replies: 54
Views: 5,214
Posted By O2surplus
I think you'll change your mind after see how...

I think you'll change your mind after see how much better your lighting performs, when compared to commercially available products at the same price. Also a plus...you get the pride that comes from...
Forum: DIY   07-14-2015, 06:11 PM
Replies: 54
Views: 5,214
Posted By O2surplus
I've got 12 Vero 18's on a 6' Makers Heat Sink...

I've got 12 Vero 18's on a 6' Makers Heat Sink and cooling fans are a necessity. Don't skimp here. Keep the Vero's as cool as possible.
Showing results 1 to 25 of 250

 
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