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I've done 3x 5 gallon batches starting with tree top apple juice and US-A05, letting them go for 3 weeks. The first one I did was in the spring and it probably went from 65 to 70f daily (brewed in a closet). The last 2 I did this winter so it was a constant 65f (digital space heater in a...

After several months I can report that I haven't had any issues with the flow sensors affecting the beer, but I've been flushing the lines quite a bit with each keg swap and no keg has lasted more than 2 months. The sensors aren't very accurate for 1oz pours, but if you pour 6oz or more it's...

I haven't noticed a difference. If it does affect the taste it would probably only be for the ounce that is in contact with it, and it gets diluted across a whole beer. Maybe my palate isn't sensitive enough, or maybe it isn't happening.

I had never seen one either, but I do know how to code. I haven't tackled the temp sensor, I've been busy doing other things (*cough* drinking). lol. If you have any questions feel free to ask. If you want to see my sketch PM me your email address and I'll share it with you.

1. I started with zero arduino experience, and very limited electronics experience (high school electronics class, a very long time ago). I started out by building everything one piece at a time, and learning how each component worked on the kitchen table before I was ready for final assembly...

I used mitered corners to assemble mine, wood glued the corners, and then put a 2x2 strip on the inside, and screwed through that to hold everything tight without putting any screws on the outside. https://www.dropbox.com/s/exwhaxlyuw1sqsk/2013-04-01%2017.41.39.jpg

Interesting. I have mine in the house in Seattle and have quite a bit of condensation even with a dehumidifier inside the freezer. A couple times I've had to use a rag to dry up the moisture on the floor of the freezer. For me the kegs don't come up to the collar either, but the taps do and...

Sure, here's the thread where I posted progress as I built it: https://www.homebrewtalk.com/f51/arduino-based-keezer-401366 Here's the complete write-up I wrote after the fact: http://www.andrewparisio.com/2013/04/arduino-based-kegerator-keezer-build.html

Both the name, and what's remaining (Rotating through Ounces, Pints, and a percentage graph) And when you pour something it tells you how much you poured. Here's a sample pic when I was building it (all the data was fake test data)

Heh, yep. That way I know what is on which tap, and how much is left in the keg! I wrote about it here: https://www.homebrewtalk.com/f51/arduino-based-keezer-401366

I insulated mine most of the way around, with a couple spots that were bare around the electronics/taps. I can feel a (slightly) noticeable difference in temperature by touching the outside of the collar on insulated vs non-insulated spots, so I can say it certainly makes a difference. How...

Lots of people have built a collar, I imagine somewhere somebody built a wooden lid. Just be sure to insulate it properly :) Here's what mine looks like.

Please do, if you have any questions about how I did anything let me know. I haven't actually worked on the temp sensors in a while, but everything else has been working great so far. The 2 kegs on tap are both down to 25% or so, so in a couple weeks i should have a pretty good idea of how...

I figured out the webserver, I had mapped the currently unused 3rd flow sensor to pin 51, which broke it. whoops. and for a write up of what i've done, which I will update once I finish the arduino, go here: http://bit.ly/10Vc7wX

After a week of use quite a bit of beer has been poured, but i don't know how much because it was crashing on most pours. I fixed that yesterday so going forward it should be accurate, but now I'm fighting with the temp sensors. These things are being a royal pita, and I can't figure them out...

The liquid flow sensors are fairly consistent from pour to pour. The docs online say 450 PPL, but I was pouring a pint of water+cleaner in 275 to 285 pulses, which equates to closer to 600 PPL. The good news is pour to pour it's consistent. We'll see how they do with beer, but so far I'd say...

So I filled my 10lb co2, connected everything, and the regulator said the tank only had 700 psi (60% on the outer gauge). I ran a keg of water + cleaner through everything, and then a keg of just water, and it was down to 53%, then I turned the freezer on and this morning it's down to 35%, is...

I used weather stripping and then installed the collar. The LCD's are wired and working, 80mm dc fan installed. The LCD's took a lot longer than I thought they would, doh.

That's great advice... I just put them on short dongles straight off the keg so I'll figure out a way to make sure they stay in the same position. Good to know! You are exactly right, all I need for what I'm doing is total pulse count so I took their example and removed all of the flow rate...

Yep, the beer lines are already assembled but I haven't run beer through it yet because my freezer isn't ready, but from what I've read there aren't any foaming issues with it. Tonight I should be able to close it up and start running all of the wiring, but it's going to take a while to run all...