Author Topic: data logging thermometer - suggestions?  (Read 903 times)

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Offline dylandylan

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data logging thermometer - suggestions?
« on: February 05, 2014, 01:30:37 PM »
Hi all, as per title I'm looking for something I can use to capture the temperature of my dough and log data so that I can build up a good picture of the environment and measure any changes I make to it.

Must have:
- fairly accurately temperature readings (say within a degree or so)
- data points at least hourly
- physically small enough to fit detector in my little proofing box (i.e. not big bulky unit)
- able to get data onto computer somehow without major fuss (expecting temperature as some form of timeseries data)
- budget ~< $100USD

Optional:
- humidity readings would be interesting, but not my focus right now so entirely optional

Nice to have:
- log more rapidly - a data point per minute perhaps
- be wireless, and log via wifi in near realtime :)

Nicest to have:
- log data live to a web service so I can check my temp from my phone.  :-D


I've done the obligatory googling and can see a few options out there, but many seem to be products in development rather than real products.   I would love to hear from anyone with experience with successful temperature data logging in the kitchen/home.

In the end I may just end up taking a punt on something if there is no go-to product that stands out.


Offline Jon in Albany

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Re: data logging thermometer - suggestions?
« Reply #1 on: February 07, 2014, 11:17:54 AM »
 I'd give someone at Omega a call.
 http://www.omega.com/index.html

We have a few of their Quadtemp loggers at work. They look to be discontinued/updated and called Quadtemp-A now. They can run 4 thermocouples (plus it keeps the loggers temp too) with readings up to every second. Not wireless though. You need to hook it up to a laptop. They jam you a little extra $$ for software and a cable. The software we have easily exports to Excel.

Someone at Omega might be able to point you in a different direction for your needs.

Offline kiwipete

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Re: data logging thermometer - suggestions?
« Reply #2 on: February 07, 2014, 04:11:55 PM »
Haven't tried it and don't know how good it is, but have a look at Trademe:

http://www.trademe.co.nz/business-farming-industry/industrial/measuring-scales/auction-692864717.htm

Offline dylandylan

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Re: data logging thermometer - suggestions?
« Reply #3 on: February 07, 2014, 04:42:36 PM »
Thanks for the pointers guys, even a local option...  not something I expect often in the world of pizza obsession!

Offline Qarl

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Re: data logging thermometer - suggestions?
« Reply #4 on: February 07, 2014, 04:59:56 PM »
Lots of data logging here...

http://thermoworks.com/products/logger/

Offline TXCraig1

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Re: data logging thermometer - suggestions?
« Reply #5 on: February 07, 2014, 09:22:21 PM »
Pizza is not bread.

Offline CDNpielover

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Re: data logging thermometer - suggestions?
« Reply #6 on: February 07, 2014, 10:23:24 PM »
Not really possible on that budget.  The only thing I can think of might be the small waterproof HOBO sensors, but they're relative large (insensitive) and you'd have to somehow get the whole thing in the middle of your dough.  Ideally you would have a thermocouple in the dough with the logger on the outside of the box, but the cost of a good one is going to be several times your budget.

Offline dylandylan

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Re: data logging thermometer - suggestions?
« Reply #7 on: October 22, 2014, 03:24:45 AM »
I'm dragging this thread from the dead as I've made some progress in the last couple of days.   I was talking with a friend who is teaching robotics and got on to the topic of a dough temperature measuring bot... and learned that an Arduino might do the trick.  That led to me purchasing and Arduino with a few parts and have assembled a thermometer that will log over WIFI to basically anything.   I followed this Cloud Thermometer tutorial - with a few deviations of course - but now have a living web-logging thermometer.  And what's better is that it should be quite feasible to get this unit to control some heating too, so stable fermenting temperatures might be in my future.

For fun I've hooked the setup up to Twitter, and it is tweeting the temperature (albeit wildly mis-calibrated).  http://twitter.com/doughbelike

I'll post more when I have some progress.



Offline trixaddict

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Re: data logging thermometer - suggestions?
« Reply #8 on: October 22, 2014, 04:03:18 AM »
Mad scientists at work. Very cool. This might just be the reason I'll join Twitter and see your results.
Slice of life
Tim

Offline dylandylan

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Re: data logging thermometer - suggestions?
« Reply #9 on: October 22, 2014, 04:18:02 AM »
I've just realised the calibration was fine, but it was logging in Kelvin not Fahrenheit.   Fun fun.   The Twitter part is more for giggles than actually useful.


Offline dylandylan

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Re: data logging thermometer - suggestions?
« Reply #10 on: October 22, 2014, 03:51:33 PM »
Now logging to a database and charting here:
http://analoguedrums.com/doughbot/chart.php

So I think I have a workable instrument for a pilot run, I expect a few kinks to iron out.

Offline Tampa

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Re: data logging thermometer - suggestions?
« Reply #11 on: October 24, 2014, 08:46:07 AM »
Love this project, Dylan, and the doughbelike moniker - fun and fitting.
Dave

Offline TXCraig1

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Re: data logging thermometer - suggestions?
« Reply #12 on: October 24, 2014, 08:51:41 AM »
Awesome. I love it.
Pizza is not bread.