liam.mccaffrey
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| posted on 19/10/11 at 12:26 PM |
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IT-Internet-Phone App Question
In simple terms, I need to grab the output of a temp sensor and make that information available to either a web page or perhaps even better a phone
app.
I also would need to log and plot said temp against time.
Anyone got any advice on where to start with this?!!?!?!?!? I am quite willing to learn some programming or app creation but need a clue on where to
start.
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scudderfish
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| posted on 19/10/11 at 12:42 PM |
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Starting with the basics, what sort of output does the temp sensor provide? RS232? USB? Bluetooth? WebService? etc.
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liam.mccaffrey
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| posted on 19/10/11 at 01:07 PM |
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I have a blank page, i don't have anything yet. though i would like to keep hardware to a min. ie I don't want an old pc running linux
doing data aquisition and then running a webserver if I can avoid it.
I think I might be able to use my Netgear NAS to serve out web content.
I wouldn't mind doing a microcontroller project to collect and send it on
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tegwin
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| posted on 19/10/11 at 01:12 PM |
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There are commercially available things that do what you are asking...
Or, the more "DIY" approach... http://www.open-electronics.org/products-page/
If you could send the data via a GSM link you could have a recieving computer somewhere to aslimilate the data.
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McLannahan
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| posted on 19/10/11 at 01:17 PM |
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Google's App Inventor is quite nice and easy to use
http://www.appinventorbeta.com
Under the "Not ready for prime time" it does have a facility to pull from an external web source
http://www.newportus.com/ppt/zseries.html offer an all in one device for not much money?
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scudderfish
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| posted on 19/10/11 at 01:29 PM |
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Before you get carried away with web apps and phone apps, how do you get the data out of the sensor? Without that all apps are pointless.
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scudderfish
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| posted on 19/10/11 at 01:29 PM |
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What is the sensor?
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scudderfish
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| posted on 19/10/11 at 01:30 PM |
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Where is the sensor?
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liam.mccaffrey
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| posted on 19/10/11 at 01:43 PM |
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I had planned on using a thermocouple to measure the liquid temp of a small tank??
If I used an arduino or something similar could I not just get one of the analogue pins to monitor the voltage from the thermocouple and display the
value as in this example which uses the ethernet shield to serve the output to the web.
Seems like it would do everything I want, plus i'd learn a bit about programming.
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scudderfish
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| posted on 19/10/11 at 01:47 PM |
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quote:
Originally posted by liam.mccaffrey
I had planned on using a thermocouple to measure the liquid temp of a small tank??
If I used an arduino or something similar could I not just get one of the analogue pins to monitor the voltage from the thermocouple and display the
value as in this example which uses the ethernet shield to serve the output to the web.
Seems like it would do everything I want, plus i'd learn a bit about programming.
Looks good to me  Once you've got that working, it's a simple matter to get something else to poll it regularly for history, or add an
SD card to the arduino for local storage of history.
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britishtrident
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| posted on 19/10/11 at 03:01 PM |
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Look at these http://www.quasarelectronics.com/3145-ds18s20-computer-serial-temperature-data-logger.htm
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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scudderfish
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| posted on 19/10/11 at 03:03 PM |
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Or http://www.ladyada.net/make/logshield/lighttemp.html
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liam.mccaffrey
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| posted on 19/10/11 at 09:05 PM |
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thankyou for all your suggestions guys, very interesting
I think i can do what i want and more
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Madinventions
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| posted on 19/10/11 at 09:20 PM |
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I'm working on a project at work at the moment using type K thermocouples, and I've used the MAX31855 chip from Maxim which gives the
temperature reading via a simple SPI interface. Free samples on the Maxim website!
May be worth a look?
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