Homemade Breathalyzer - Measure Alcohol in the Air

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  • Опубліковано 2 лют 2025

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  • @ELECTRONOOBS
    @ELECTRONOOBS  2 роки тому

    Join my Arduino Course (Spanish): bit.ly/2JY8icE
    My Tools: bit.ly/3uv8bc3
    Help me on Patreon: www.patreon.com/ELECTRONOOBS

  • @troublehd7236
    @troublehd7236 2 роки тому +8

    And again a high quality video from Electronoobs. I don't know if I understood everything, but I keep an eye on this project. Mybe I will build it myself to understand it a bit better, and to bring a funny gaget to the next party :D

  • @digus
    @digus 2 роки тому +2

    Awesome!
    This is one of my favorites. May actually build one myself.

  • @duyucnguyen9138
    @duyucnguyen9138 Рік тому +2

    Can u please tell me how to the R0 = Rs/50 with interpolation from the graph?

  • @vedantsamadhiya2304
    @vedantsamadhiya2304 2 роки тому +1

    Happy to see your new video 😊

  • @mumbucorporation7243
    @mumbucorporation7243 Рік тому +1

    Muchos gracias you made me finally understand how to calculate and implement that calibration of the gas sensors ❤

  • @ishimwehonore8042
    @ishimwehonore8042 2 роки тому +1

    Happy new month brother, always thumb up

  • @charbelmansour6488
    @charbelmansour6488 2 місяці тому

    Welcome,
    Thank you for this wonderful video,
    But I have a question regarding the graphic equation. Using this method, the Arduino will only get a reading of ethanol gas without considering other gases?
    I need help finishing a college project, so I would be grateful if you could help me via email or other communication platforms.

  • @NoahK216
    @NoahK216 2 роки тому

    Really cool idea, might build one myself

  • @RIMAMNYANGRIMAMSIKWEURES-xq4oe

    Good video, I need more clarification on the plotting of ppm value against the voltage value of the sensor

  • @BioExtract
    @BioExtract Рік тому +2

    Why didn't you upload the completed code where you have the sensor capturing values and outputting the average/max? That's quite important for building this out.. You only have the part where it's outputting the sensor value at PPM or BAC.

    • @RatchetFWD
      @RatchetFWD Рік тому +2

      Yeah, went a ahead and added everything into a loop that only reads when held down. What’s left on the screen is the last value.
      Also modified to display both ppm and bac on the screen at same time.
      Will see if I can code in to display last highest value or something.
      Would like to see @electronoobs code tho.

  • @skyhigh6148
    @skyhigh6148 Рік тому

    What circuit designer did you use here at 10:45

  • @joelshopefullyhelpfulvideo3010
    @joelshopefullyhelpfulvideo3010 2 роки тому

    Very cool Project! I vote that you should do a quick follow up video and test it after a few beers haha. Great content!

  • @Delali
    @Delali 2 роки тому

    Just a quick question....so you've actually figured out how to read alcohol much accurately right?

  • @SomeRandomGuy-h4w
    @SomeRandomGuy-h4w 10 місяців тому

    what if my the resistor at the back of the MQ3 sensor is only 1 kilo ohms, will it still work

  • @anonuser2640
    @anonuser2640 Рік тому

    Very nice and educational

  • @santoshbansode697
    @santoshbansode697 2 роки тому

    Nice to see you again,,,,,,,, very helpful and informative videos thanks,,,,,,

  • @Delali
    @Delali 2 роки тому

    This is super useful. I personally like how you break down the graph and how to do the calculations.
    Nice work.

  • @maxidemmel7970
    @maxidemmel7970 Рік тому

    Hello nice project can i have the full code ? :) is try this at home but i faild with the code to setup the buttons ond the heating timer THANKS !

  • @FuZhi_666
    @FuZhi_666 Рік тому

    Can that code be found on the internet?

  • @MikesTropicalTech
    @MikesTropicalTech 2 роки тому

    Estrella Damm! I'm starting to drink that here, now that I've moved to Barcelona.

  • @technotroll-pro
    @technotroll-pro 2 роки тому

    А мне нравится вечерком с баночкой пива попаять)

  • @ranganatennakoon
    @ranganatennakoon Рік тому

    thanks

  • @jesusreignonhigh6732
    @jesusreignonhigh6732 2 роки тому

    Hi, just a thought, I'm looking to see how a USB can be implemented on any customer PCB projects. Do you think you can make a video on how to implement USB for serial comm?

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 роки тому

      I thnik Arduino has a USB host library for that...

  • @johnborrell9021
    @johnborrell9021 Рік тому

    Good beer, Estrella Damm. Have you tried Voll Damm?

  • @doublee4714
    @doublee4714 2 роки тому +2

    👍

  • @jamess1787
    @jamess1787 2 роки тому

    Drinking for science and coding hurray!

  • @anonuser2640
    @anonuser2640 Рік тому

    👏👏👏👏👏

  • @harrickvharrick3957
    @harrickvharrick3957 Рік тому

    Why the tester (and especially the actual sensor in it) is not constructed in a way that allows air to actually flow through I do not understand. Besides that, 'real' breath testers also measure how much air has passed through! I am not sure whether or not a tester that does not take into account the volume of air blown into it can actually provide sufficiently accurate outcomes. It may or may not make any difference. When the tester does not register what amount of air passes through that indeed would allow for false measurements, such as ones being caused by a remains of liquid alcohol still present in the mouth or traces of it that may be present in the top layer of tissues in the mouth, or on them, as the guy kind of does too.

  • @sammin5764
    @sammin5764 Рік тому

    🌟🌟🌷🌟🌟🌷🌟

  • @fouzaialaa7962
    @fouzaialaa7962 2 роки тому

    its insane how you cant drive after only 1 sip in Spain !!

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 роки тому +1

      Yes you can. 0.05 is actually something like 1 or 2 beers.

    • @GRBtutorials
      @GRBtutorials 2 роки тому

      This test was done immediately after drinking, so the alcohol is still hanging around in the mount, giving an inflated value.

  • @atlantaperimeter
    @atlantaperimeter 2 роки тому

    you should always drink beer from cans with a straw, you know, the rat $hit.

  • @PedroCoelho98
    @PedroCoelho98 2 роки тому

    0,05 mg/L is not 0,5 mg/L. 😁🍻

  • @sturkjerikin2473
    @sturkjerikin2473 2 роки тому +3

    As a Muslim I always wonder whether some food contains alcohol or not
    (Because Alcohol is 100% forbidden in Islam)
    I want to build this project and test if it can detect alcohol on food or not

    • @YouGenom
      @YouGenom 2 роки тому

      many foods, fruits etc. contain alcohol, it is more or less everywhere.

    • @sturkjerikin2473
      @sturkjerikin2473 2 роки тому

      @@YouGenom what I know is fruits doesn't contain alcohol when they are fresh
      Could you give me examples in order I check
      For foods it's clear that it depends on the one that made this food he can add alcohol or not

  • @thefishguy1241
    @thefishguy1241 2 роки тому

    omg

  • @TecSanento
    @TecSanento 2 роки тому

    Could you please stop calling prototypes like this a finished product?
    because as a product developer for hardware products with PCBs I have to tell you, that this is miles away from a finished product :/
    Although, it's a great project and I will definitely try to build it myself! :) seams like a fun little gimmick