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09-10-2007, 02:35 PM
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#1
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Senior Member
Join Date: Feb 2007
Location: USA
Posts: 1,169
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DIY temp controller
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I just finished building a temperature controller for a mini-fridge I acquired. Total cost was ~$30.00. If anyone is interested, I'll post schematics, PCB layout, part numbers, pics.
I started with the cheapest digital thermostat I could find, and designed an outlet switchbox that interfaces with it. It controls both cool and heat, for use in summer and winter. It can regulate within 1 degree F down to 45 degrees, so not all the way into the lower lager temps. For that, I found the built-in fridge thermostat to be suitable.
Let me know if there's interest.
-PoB
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09-10-2007, 03:01 PM
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#2
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United States Mashtronaut
Join Date: Nov 2006
Location: Edmond, OK, Oklahoma
Posts: 2,984
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I'm interested, please post the part numbers and stuff. Can't wait to see how it was done.
__________________
"Beer... Nutritious and Delicious!"
"It's like a 15.5 gallon Mr. Beer!"
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09-10-2007, 03:02 PM
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#3
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Senior Member
Join Date: Oct 2006
Location: Ankeny, IA
Posts: 766
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I'd be much interested in what you have. Please post more details!  |
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09-10-2007, 05:42 PM
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#4
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Senior Member
Join Date: Jun 2007
Posts: 661
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Ditto; interested!
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09-10-2007, 07:36 PM
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#5
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Senior Member
Join Date: May 2007
Location: Catonsville, MD
Posts: 392
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I am also interested, I was just going to work on a similar project... I am building a double fermentation box and would like to adjust the cooling/heating accordingly, but this would be a good thing to look at.
__________________
Primary 1: NB American Rye, Primary 2: Lakefront IBA
Secondary 1: Honey Kolsch
On Tap 1: Town Hall Hope & King Scotch, On Tap 2: Honey BB Wheat, On Tap 3: Choconut Porter, On Tap 4: Emma's Brown, On Tap 5: Air
On Deck: Imperial Stout, Belgian Strong Golden
"No sense having empty carboys around when full ones take up just as much space. " - Me
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09-10-2007, 08:03 PM
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#6
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Senior Member
Join Date: Feb 2007
Location: Central Florida
Posts: 975
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Count me in! I would like to see how you've done it, and take a look at the details.
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09-10-2007, 11:26 PM
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#7
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Senior Member
Join Date: Feb 2007
Location: USA
Posts: 1,169
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Alright, I'm home now, and I'll try to take some pictures tonight and clean up my schematics. Wish I'd taken pics during construction. Hindsight is 20/20.
-PoB
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09-11-2007, 04:14 AM
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#8
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Senior Member
Join Date: Feb 2007
Location: USA
Posts: 1,169
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Alright, here's a writeup about the controller. As it says at the beginning, its not very good, but I'll try to fix it up after some sleep.
Good luck making sense of it. The schematic an PCB images should at least be some help.
DIY Temperature Controller |
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09-11-2007, 03:12 PM
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#9
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Senior Member
Join Date: May 2007
Location: Catonsville, MD
Posts: 392
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Awesome title for your blog, my roommates all call me an enginerd. I had very similar plans for my temp controller, but was thinking of building the thermostat myself. Maybe I should reconsider. Soon as I can get past all this school work I plan to finish the controller.
__________________
Primary 1: NB American Rye, Primary 2: Lakefront IBA
Secondary 1: Honey Kolsch
On Tap 1: Town Hall Hope & King Scotch, On Tap 2: Honey BB Wheat, On Tap 3: Choconut Porter, On Tap 4: Emma's Brown, On Tap 5: Air
On Deck: Imperial Stout, Belgian Strong Golden
"No sense having empty carboys around when full ones take up just as much space. " - Me
Last edited by TheFlyingBeer; 09-11-2007 at 04:49 PM.
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09-11-2007, 03:28 PM
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#10
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Registered User
Join Date: Jan 2007
Location: Wichita Falls, Tx
Posts: 3,026
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Dude, I wish I had the brains to build something like that.
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