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Old 03-14-2013, 06:22 PM   #21
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Originally Posted by Spintab View Post
A little piece of advice. While your on auberins site, grab a float switch. 15 bucks now will save you 15 the first time you accidentally leave the element on after the hot water has run out.
That's actually not a concern for me. It will not be possible to drain my HLT below the elements. The only way that could happen is if it all boiled off.
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Old 03-14-2013, 06:32 PM   #22
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Yup, I learned this too, I'm adding a scale to determine water volume (and grain weight) in the vessels and will be adding an auto off below a certain value
Nice. What are you using for scales if you don't mind my asking? Are they onewire compatible or something similar that could plug into something wee like a pi or fez? I'd love to create a fully automated rube goldbrew machine someday. Scales would be key to making that happen.
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Old 03-14-2013, 06:40 PM   #23
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Originally Posted by Spintab View Post
Nice. What are you using for scales if you don't mind my asking? Are they onewire compatible or something similar that could plug into something wee like a pi or fez? I'd love to create a fully automated rube goldbrew machine someday. Scales would be key to making that happen.
I'm using a Arduino breakout for analogue input, I've got a few types of scales I'm testing with and I'll just be tapping into the feed to the controller. The idea is to be able to use cheap digital body scales (that you can get for as little as $10) to use.

EDIT: Wrote "Pi Breakout" Meant to be a Arduino
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Old 03-17-2013, 02:29 PM   #24
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So this is what I have added in the last few days (note, I've found some big issues with the Android controller, so I'll be fixing it today, turns out the display is wrong when you're on physical devices).

https://cosm.com/feeds/119008 (switch the scale to the last day, or longer)

You can see the temperatures on each output and find issues with mash temp and so on (note, I was fixing some bugs during my mash, hence the lack of data).

I've also got methods that will save the actual data to images on your local machine so you can create brewing reports (and the software will do this for you too).

I'll update the repos today once I have fixed the android application, so keep an eye on the repos.

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Old 03-17-2013, 07:13 PM   #25
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Repos updated, see first post for details

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Old 03-19-2013, 03:13 AM   #26
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I've made a few more changes, like adding a launcher script

You can also specify the start and end time of the images (in your local timezone, or any timezone)

keezer:8080/getimages?startDate=2013-03-16T02:07:10-04:00&endDate=2013-03-16T18:07:10-04:00

Gets the graph between the startdate and endDate (-04:00 is the timezone different to UTC), I'll be updating the android controller to have a start brewday, end brew day, start Mash, end Mash, etc... form to allow multiple graphs to be selected.

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Old 03-19-2013, 08:30 PM   #27
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Impressive! I love seeing all the creative uses for Raspberry Pi!

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Old 03-19-2013, 11:15 PM   #28
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Quick update: To make the last update work better I've added in methods to get the raw XML data (the COSM API produces ugly and pretty much useless graphs)

And I've created this today to help this out some more:

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Old 03-20-2013, 12:49 AM   #29
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And finished the timing inputs:



They don't do much (aside from tracking start times and end times) for now, but I'm working on buttons to show your graphs of temperature and save the data!

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Old 03-21-2013, 03:43 AM   #30
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One more update, then I think it'll just be bug fixes for a while, the app does what I need it to for now, and no-one has raised any bugs or questions.

See first post as usual

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