New Jarduino build gets started

[Chatouille]

Well... actually one less now

The LM2576HV i have works well, stays cool, and is able to step down from 48VDC. Most of the other dc/dc converters are limited to ~36v, but the biggest selling point is that they come pre-assembled.

Here's that schematic for the fan.

[daplatapus]

Hmmm, pic is too small to make out. I tried saving it and zooming in but it went all blurry... unless that's the aftermath of the exploding transformer

[Chatouille]

lol.... sounds like Bill Clinton. Tranformer smoked, but I didn't inhale. Why is everything so blurry?

[daplatapus]

Nope, didn't inhale. No really...

Well I had a few minutes tonight so I finished soldering up one proto board and hooked up one of my waterproof temp sensors. After figuring out the address of it, modifying and re-laoding the sketch, all works well

[reefme]

Here is my controller

[daplatapus]

Well, I got a bit of time to fiddle around with my DC/DC step down transformers. And after staring at it for a while and tracing down pathway's I tried risking one and doing some trial and error. Turns out all I needed to do was remove the jumper that I'd originally installed and twin each of the solder points so instead of the 2 separate resistors, I had just the one variable resistor with 2 empty solder points. Everything seems to work and I can reduce the input 36V down to a variable 5.8V-12V
On to the next phase....

[daplatapus]

So it's looking like my MH bulbs on my existing fixture are coming up for replacement. The 77 gal DT is growing some algae that my 20 gal under LED's is not. Sooo... instead of waiting until the 210 gal upgrade is complete I'm going to build my light fixture with the Jarduino controller and get the MH's off the main DT. With that in mind I wanted to build on the full Jarduino V 1.2 beta release instead of the partial free program that I've been working with so far.
My plan for the 210 is to have 3 - 18" heatsinks. I have 1 built and is running on my 20 gal (it has to be modified and given another LED cluster for the 210) and I bought 2 more heatsinks last fall that have been patiently waiting. Last night I got all the little screws on the heatsinks while the wife watched "Dancing With the Stars, lol.
Here's the result:

I'll be downloading the new Jarduino code tonight and start playing with it.

ScubaSteve and Chatouille (and anyone else building this thing): How are your projects coming? Love to hear back about your success and/or frustrations :P