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DIY Nitrox Analyzer (Arduino based)

Discussion in 'Making your own Gear' started by Pao, Apr 12, 2019.

  1. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
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    Thanks!
     
  2. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    973
    200
    43
    Looks promising. The MD62 thermal conductivity sensor is used primarily to measure CO2 levels, but I came across a patent for its use with helium.
     
  3. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    973
    200
    43
    Notes on the construction of my DIY Nitrox Analyzer. Pardon my lack of video shooting and editing skills. 1f603.png

     
  4. Sbiriguda

    Sbiriguda Manta Ray

    # of Dives: 25 - 49
    Location: Italy
    781
    119
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    Thank you for sharing Pao, very nice project

    @JMBL
    Do you happen to have a link to the French forum where they spoke about this project? I can read written French, I am interested
    Thanks
     
    Pao likes this.
  5. JMBL

    JMBL Solo Diver

    # of Dives: 500 - 999
    Location: France
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    Here's the link, but you'll have to subscribe first :

    UFP Plongée Technique - Connexion
     
    Sbiriguda likes this.
  6. JMBL

    JMBL Solo Diver

    # of Dives: 500 - 999
    Location: France
    374
    129
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    Nice job. Thanks !
     
    Pao likes this.
  7. kelemvor

    kelemvor Big Fleshy Monster ScubaBoard Supporter

    # of Dives: 100 - 199
    Location: Largo, FL USA
    5,541
    2,821
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    This is great! I already have an analyzer that I'm very happy with, but I'm going to build this because it looks fun.

    I believe I have most of what I need on hand, except the sensor.

    Thanks for sharing the project!
     
    The Chairman and Pao like this.
  8. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    973
    200
    43
    Test the boost converter before using. The ones I got recently had a holding current of 50 milliamperes. You can use another boost converter running on 2 x AA batteries. Consumption is only 25 milliamperes.
     
  9. ic0n

    ic0n Angel Fish

    # of Dives: 0 - 24
    Location: England
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    Just wanted to say thanks for posting this. I've used your hardware design as is, and your software as a base - I've added MOD and battery voltage, just for fun.

    I've not previously had much contact with Arduino - I've done some PIC assembly stuff a few years ago, but Arduino makes it delightfully straightforward!
     
    Pao likes this.
  10. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    973
    200
    43
    I'm glad you found it useful! Maybe you can upload your Sketch.
     

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