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Cheap temp logger for $14. I'm using it in my greenhouse, my bee hive, my energy efficient house...

 
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I built a duel purpose greenhouse. It dries my firewood out like a champ. And I keep figs and tomato plants in there to extend the season.

It's 12 1/2 x 28 feet. I will build another one similar to that next year.


Temperature management in a hoophouse or greenhouse is a big deal for most things that you would want to do in a greenhouse.

I have tried different thermometers that record high and low. They work, but there's no real data logging, etc.


I got excited when I saw a temp logger that they were using in one of the Wofatis.

I hunted them down, and also found a much cheaper version on ebay.

They are $14 shipped. They can record 32,000 data points, at whatever interval you want. I have mine record every ten minutes. It will run for 6 months on one wafer cell.

http://www.ebay.com/itm/Mini-Waterproof-USB-Temperature-Data-Logger-RC-5-Recorder-32000-Points-Sensor-/381421977427?hash=item58ce857f53:g:2V0AAOSw9r1WC62B



You have to download some software to use it, but it's free and works pretty much straightforward.


It's starts downloading automatically if you put this in your address box:

http://www.e-elitech.com/uploads/soft/software/RC-4&5_Conventional.exe


It is 60 megs, which kind of surprised me, but hey, it works.


 
garden master
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Wow! I have been idly thinking about wanting a recording thermometer, but hadn't seen a solution at a reasonable price point. This looks very promising, thanks for sharing!
 
Troy Rhodes
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Yeah,prior to this one, everything was 50-100 bucks or more.

Oh yeah, it's water resistant as well.
 
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Hey Troy,
So 5 months in how is the temp logger holding up?
 
pollinator
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A raspberry pi zero (£5), 1 wire adapter (£15, could probably be cheaper) and DS18B20's at £1 each and you can have 60 data loggers logging every minute and storage of data points for years! Pretty graphs, everything!
 
Troy Rhodes
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The cheapo data logger is still working as advertised.

Very interested in the raspberry solution also...


Are there any how-to videos on how to put one of those together?

 
pollinator
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For geeky types, there is python software and drivers to run it off Linux; drivers good for Mac and Android, also, and run similar products using same chipset.

https://pypi.python.org/pypi/elitech-datareader/0.8.3

You need to use a spreadsheet to play w/the data, so knowing how to write spreadsheet formulas and use graphing commands would be important.


Rufus
 
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