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brauhausjoe · 11-08-2007, 08:16 PM

Starting at only $440! looking at your url...I bet when I am done, I could get Nagios to monitor this......

Thought about the web cam, but it fogs....

**Yuri_Rage** · 11-08-2007, 08:38 PM

Here's what I would do. It's REALLY geeky and would require a fairly trivial amount of programming (assuming you have some knowledge of writing code):

I already use a $35 Arduino microcontroller board with an LM34 temperature sensor to feed temperature data to my computer. A Java application that I wrote does the serial communication and data display. With slight modification, the Java app could dump sensor output to an HTML file in the server's /www directory about once per minute.

brauhausjoe · 11-08-2007, 08:58 PM

When I am done building this thing we are going to have to talk. My coding is not that good, but with a little help.....

**CodeRage** · 11-09-2007, 03:37 AM

Quote:

Originally Posted by Yuri_Rage

A Java application that I wrote does the serial communication and data display.

Where did you find this little guy? I've been out of it for about a year but I really need access to the serial ports via Java. Last I check it was very sketchy espescially with permissions/policy

brauhausjoe · 11-18-2007, 05:55 PM

Finally got it done!

I will post what I did when I finish writing it up. It was my first time etching a board, in the future I hope to do a better job.

I would like to find a quick disconnect idea for the sensor it self, that way I could use the same box on different sensors. Like http://www.homebrewtalk.com/f51/diy-submersible-temperature-probe-26400/ when I am brewin and others for the Kegerator and Lagering.

Here is a link to a more detailed description http://www.swampwaterbrewery.com/search/label/DIY%20-%20Web%20Temp%20Sensor

Got it on the net using the instructions found here http://www.instructables.com/id/Temperature-sensor-%2f-weatherstation/

Thanks,

brauhausjoe · 12-06-2007, 02:29 AM

I have it on line http://www.swampwaterbrewery.com/search/label/DIY%20-%20Web%20Temp%20Sensor Yuri, Did you say you have or know of a java app I could use on my desk top?

**Yuri_Rage** · 12-06-2007, 03:04 AM

Quote:

Originally Posted by Virtuous

Where did you find this little guy? I've been out of it for about a year but I really need access to the serial ports via Java. Last I check it was very sketchy especially with permissions/policy

Sorry I missed this one!

I developed it on a Windows machine using Rxtx (www.rxtx.org). I found later that the javax.serial library works quite nicely on *nix machines.

BuffaloSabresBrewer · 12-06-2007, 03:14 AM

Quote:

Originally Posted by dinks

Could always setup a webcam and point it at a thermometer.

way too simple

scoates · 01-30-2008, 04:02 PM

My monitoring output is here:

http://adnagaporp.caedmon.net:8000/kegerator/

It's a combination of C++ code on the Arduino, PHP to fetch the data over serial, and RRDTool to graph said data.

S

brauhausjoe · 01-31-2008, 12:06 AM

I would like to set up something to monitor the CO2 tank next, but I dont know what hardware to use....