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Thread: URGENT! Atmosphere and humidity sensor

  1. #11
    Super Moderator T-1000 docel's Avatar
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    Did you Really, really search the net ??

    I did a simple Google and found 16,980 instances of your first requirement and 1,84,000 of the latter. All with price tags and other such colorful details that are more than necessary.

    Next thing we know, you'll complain that your sensor will not work below MSL or below freezing....

    So, lets be realistic: post your application in detail and lets see if anyone on the Forum can suggest something specific.
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  2. #12

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    Docel,
    I did search the net as much as I could for about 2.5 days as soon as I got the project. I take forums as a last resort as I like to sort things out on my own. But this is field that I haven't worked much in. I did find a lot of 'devices' that measure the pressure but couldn't spot any IC's like MPX2100. It is also true that the all quote prices but I didn't come across one that quote in rupees.

    I'm planning to hook one upto an Atmega to find fluctuations in atmospheric pressure.

    The same is the case with the soil humidity sensor.

  3. #13
    Super Moderator T-1000 docel's Avatar
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    I read through your Blog and liked your stand on several things. I have Tweeted your Blog too, as I felt that you can do with some exposure. Also, if you're as smart as you write, you can see a similar Project on Twitter using a simple Soil humidity Sensor !

    Sensors cost money and may not be always available in Indian currency in single quantities. I can source an MPXxxxx sensor for you, if you really need it, in my next import order.
    Forget looking for Soil Humidity Sensor. That is a specific professional sensor and is pretty expensive but there is no need for it at all. A simple but very effective Soil humidity sensor can be home-made and will work quite well. It will also give you something to be proud of- of making your own sensor. Use a manufactured sensor and people will just nod. Say you 'made' the sensor yourself and they'll sit up and take notice. Believe me, its a feeling that can never be purchased. I know this because I made my own sensors as a kid- and I still do. My school kids make their own sensors too and are much appreciated by one and all including professionals and scientists. it is what is known as innovation.

    Nobody expects things to be perfect and nothing is, for a long time. I have to get my Rs.20,000 DMM calibrated twice a year@ 1/10 the cost of the meter to satisfy my clients and approvals !

    So, let me know if you're interested to go the innovative way....

    Good luck!
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  4. #14

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    HI
    Try getting some thing from Farnell , buy the cheapest one they are eually good



    http://in.farnell.com/pressure-sensors

    http://in.farnell.com/jsp/search/bro...lues%3D1003100

    Asimov

  5. #15
    Senior Member T-1000 akshay66's Avatar
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    Docel is absolutely right.The feeling of making your own sensor is awesome and people appreciate it much more.Please try if it does not work for you then you can day go for professional ones.
    Redefine it your way!!!!

  6. #16

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    docel,
    Thanks for your comment on my blog. I also like to experiment on things but the time constraint that I'm put on is not very favorable. I was mostly looking for a atmospheric pressure sensor and thanks to asimov, I think I've found what I was looking for.
    If nothing would've worked, I was planning on rigging a simple barometer ( made using balloon and stuff) for the purpose. But that would not be too good.

    Asimov,

    Thanks for the wonderful link that you provided.

    Thank you all for your help.

  7. #17

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    HEy hi...U can get MPX10DP next eql forMPX2100 at Roland electronics in hyderabad for Rs1050 approximately...
    Contact detail:
    Roland Electronics
    4-3-345/5 Gujarati Galli
    Koti Hyderabad.500195.
    Ph:040-24762746,24756823,09849070411
    Fax:040-30726823.
    Email: Kaizerkhambaty@yahoo.com

  8. #18

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    Thank you Roland but I've decided on getting a MPXH6115 for ~Rs 400. I could locate it nearest to me at Bangalore and am planing on ordering it. i someone is aware or how I could get it closer to Kerala please let me know

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