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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > What would it take to build a web-accessible temp monitor?
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Old 01-04-2011, 02:45 PM   #1
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Default What would it take to build a web-accessible temp monitor?

I have a web server and just wondered what would be needed to put the out put online? I'd probably want to use a thermowell probe directly into the wort, but am also considering attaching to outside of ferm bucket.

I'd like the page to show current temp as well as a history of the fermentation and possibly a graph.

I'm smart enough to do basic HTML and can follow simple instructions if I am not distracted by shiny objects.

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Old 01-04-2011, 02:58 PM   #2
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The BCS 460 has a built in web interface if that works for you. A little overkill just to monitor ferm temps though.

http://www.embeddedcontrolconcepts.com/

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Old 01-04-2011, 03:03 PM   #3
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Looks kind of expensive. I was thinking more along the lines of a homebrew (pardon the pun) system with a temp probe, a device to read it and transfer to a PC running Linux, possibly the web sever itself (although actually probably not). The Linux could maybe update a log file which updates the web page via a script.. Something like that?

I'm not good on the details and have no knowledge of what might be available for hardware to read the probe and output the data to a computer. Serial, USB, LAN, etc...

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Old 01-04-2011, 03:08 PM   #4
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a super easy way would be to script a cheap webcam to take a pic of the temp (either periodically or triggered by visiting the website). although thats not a good way if you want a graph...

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Old 01-04-2011, 03:12 PM   #5
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Here you go.
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Old 01-04-2011, 03:12 PM   #6
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http://www.dataq.com/products/startkit/di145.html
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Old 01-04-2011, 03:32 PM   #7
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That dataq looks interesting. Looks like it can do a ton of stuff for not much money.

I also found this on Ebay. Looks like it is almost custom made for this sort of thing. Could either write simple program to receive data from RS232, or use Hyperterminal in Windows to collect data.

Looks like there is a least a couple of options that might work good for a homebrew setup.

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Old 01-04-2011, 04:07 PM   #8
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I was thinking of doing something like this with an Arduino and a wifi or Ethernet shield. This would give you control the fermentation temperature (with a fridge and/or heater) and log temperatures. You could even log how long you ran your heat/cooler, and program a temperature regimen for your fermentation. Although this all takes a fair bit of electronics and programing skill.

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Old 01-04-2011, 04:09 PM   #9
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http://www.homebrewtalk.com/f19/wifi...wesome-215441/
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Old 01-04-2011, 04:10 PM   #10
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