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Author Topic: Open Source Data Logger Project Using the Arduino?  (Read 32920 times)
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Hi, I'm very new and a scientist interested in dataloggers.

I'm mainly interested in one that can work by sending data to a computer as it analyzes a signal. Does something like that exist? This wouldn't require battery power or very much data storage...
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I am thinking about creating a specific website which will act as a central resource for open source data logger projects, allowing the less technical to communicate with us with there project idea's.  Additionally, It might also work as a place for developers to share code between each other and exchange idea's.

I had plans on competitions, prizes, etc to generate interest and give some incentive for everyone to contribute, I have had both positive and negative comments on implementing this.

What do you you all think?  Good or bad idea?

I noticed that this thread has been viewed over 10,000 times!!  It would appear that there is a lot of interest out there.

I think it a brilliant idea! The views of this topic is nearly hitting 50,000! :o
So was the central depositry site for data logger projects created yet? ;D
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Guys,

I will do this / collaborate on this. I already manage an open source data logger that connects arduino to google's cloud computing infrastrucure. I have the time, resources and interest to keep something like this going.  I have the code to put up a full text search web site with user authentication

Please contact me if there already is a site that's been started if you just need my help.

I own the domain opensourceloggers.com which i will donate to this cause
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Here is an under construction web site for Posting and searching for open source data logger projects. I'll get the data structures security set up over the weekend and will keep posting progress to this thread:

http://www.opensourceloggers.com/

It'd be very helpful to hear about what sort of catagories data loggers should fall under - such as Arduino, SQL, JDO etc - maybe the language, licences type etc. Posting a description, repository location...anything else?
« Last Edit: October 14, 2010, 12:51:32 pm by bsautner » Logged

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Hi kurofune,
"sending data to a computer" over the USB port is easy on Arduino.

It can be captured on the computer using Processing, and plotted or saved.
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I am very new to this field and I am building Data logger for a racing kart or a car. I think there should be a category for this type of loggers.
Although, they are similar to any other type of loggers, there are specific aspects of them being exposed to a very hostile environment i.e Rain/water/oil, vibration, EMI. I have faced this problems and finding ways to tackle them, as I am sure many others too. For example SD card slot doesn't take vibration very well and the card tend to move and eventually disconnects, which is not very healthy for logger in a middle of a busy logging session  ;D
It would be nice to share other ideas about the racing data loggers with fellow motorracing enthusiasts.
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I like this idea also. Here are 2 links to parts I use for data logging and data acquisition on my Arduino weather station.

http://www.sparkfun.com/commerce/product_info.php?products_id=9530

This little guy connects to Arduino's TX line and just logs anything sent.
The next part is a MAX6818 octal debounce chip with interrupt output. I use it for switch inputs and to count pulses from the mechanical rain gauge.

http://pdfserv.maxim-ic.com/en/ds/MAX6816-MAX6818.pdf

Just a couple suggestions.
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Can anyone recommend an open-source project focused on data acquisition, display, and control?  The commercial standard is LabWindows from National Instruments. There is something called "Liberlab" http://sites.google.com/site/liberlabsite/ written in Python back in 2006, and adapted for Arduino in 2008
http://www.uchobby.com/index.php/2008/01/19/arduino-liberlab-liberino/
but it does not appear to be an active project now. Is there anything else?

What I really want is just an easy way to do various real-time plots and status indicators on my Windows PC screen to show data coming in on the serial port, and some control buttons to send commands back on the serial port.  "Processing" is nice and user-friendly, but doesn't seem to be really designed for this. It's based on Java, so I looked at just using the Java Swing GUI setup. But from a quick look, that's not easy to jump into with no experience in that area.
« Last Edit: November 03, 2010, 03:43:00 pm by jbeale » Logged

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What I really want is just an easy way to do various real-time plots and status indicators on my Windows PC screen to show data coming in on the serial port, and some control buttons to send commands back on the serial port
Look at how Processing was used to provide a UI for the PID library
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1243714052

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"Processing" is nice and user-friendly, but doesn't seem to be really designed for this.
Wrong.

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It's based on Java, so I looked at just using the Java Swing GUI setup. But from a quick look, that's not easy to jump into with no experience in that area.
Processing uses Java, but UIs developed in Processing do not use Swing to build the GUI.
Read the source code for the example above.

Because Processing is written using Java, it runs on OSX, Windows, and even Linux boxes.
Go to http://www.processing.org/ and follow the Download link to download Processing for your "Windows PC".
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I don't know if it's been mentioned but the Openlog is a good datalogger.
It accepts micro-Sd cards of up to 16 gb.  
Oh and the contest is a great idea smiley-wink

http://www.sparkfun.com/products/9530
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