Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > DIY Projects > uC Keezer Controller

Reply
 
LinkBack Thread Tools
Old 10-26-2010, 04:03 PM   #1
Bixter1
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bixter1's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Philadelphia, PA, PA
Posts: 167
Default uC Keezer Controller

I'm going to put together a quick keezer controller for my new, well, keezer. What do I need to worry about? Turn on @ 39 and off @ 37. What about times in between cycling, min time to stay on??

__________________
Bixter1 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 04:07 PM   #2
bblack7489
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Austin
Posts: 123
Liked 3 Times on 3 Posts

Default

Most of the time, the freezer's circuitry will have a built-in delay that won't let you cycle faster than x amount of time. If you want to be on the safe side, I would suggest that you enforce a 5 min delay in addition to the hysteresis that you mention.

You're likely going to get fussed at for keeping your keezer so cold, but I'm with you. I like to keep mine in the same range too if I have a light colored beer on tap (which I usually do).

What are you using for your temperature sensor?

__________________
bblack7489 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 04:21 PM   #3
Bixter1
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bixter1's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Philadelphia, PA, PA
Posts: 167
Default

Thanks. Im going to cycle the power on and off so I would think the built in delay wouldnt work.
Im going to use some type of dallas one-wire sensor. I have a few lying around.

__________________
Bixter1 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 04:30 PM   #4
bblack7489
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Austin
Posts: 123
Liked 3 Times on 3 Posts

Default

If your freezer has a built in delay, you'll need to do some extra work to get around it. You could probably use your relay to drive the compressor and internals directly. My controller just has an outlet that I plug the fridge into. That kept my fridge intact in case I ever wanted it to let it run on its original thermostat. I use the same temp controller hardware to control a smoker sometimes, so it's nice to be able to just plug the fridge into the wall while I cook a pork shoulder.

What type of uC are you using?

__________________
bblack7489 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 04:33 PM   #5
Bixter1
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bixter1's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Philadelphia, PA, PA
Posts: 167
Default

Ah smoking meat. I just finished 40lbs of bacon!

I bought a few FEZ pandas on sale ($20/ea). Way overkill but this is temp until my pid comes in.

__________________
Bixter1 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 06:57 PM   #6
bblack7489
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Austin
Posts: 123
Liked 3 Times on 3 Posts

Default

That's quite a slick little board. I've only dabbled with the Arduino, and haven't ever seen this one at all. While they're both overkill for a keezer controller, they definitely give you some fun options that typical off-the-shelf PID controller will never afford you. I would suggest putting an ethernet shield on it and setting up a web interface to your kegerator.

Good luck with it.

__________________
bblack7489 is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2010, 07:31 PM   #7
Bixter1
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bixter1's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Philadelphia, PA, PA
Posts: 167
Default

HA. I actually have a network shield. Im getting a PID for the keezer. I dont want a crash to kill my beer!

__________________
Bixter1 is offline
 
Reply With Quote Quick reply to this message
Old 10-29-2010, 12:42 AM   #8
Bixter1
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bixter1's Avatar
Recipes 
 
Join Date: Aug 2010
Location: Philadelphia, PA, PA
Posts: 167
Default

I made one with a LCD shield I had. Kind of wish I didnt order a PID. Its working great!

__________________
Bixter1 is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yet another Love controller question - Which one for keezer? culaslucas DIY Projects 20 07-11-2014 08:46 PM
Can I mount my controller inside keezer? shanepaynter DIY Projects 14 03-25-2010 04:12 PM
Picaxe keezer controller code help jppostKW DIY Projects 10 01-19-2010 04:56 AM
DIY temp controller for keezer question !?! ftlstrings DIY Projects 1 01-11-2010 08:42 PM
DIY Scratch Keezer Controller SudsGuy DIY Projects 2 09-15-2009 03:12 PM