home-automated, low cost setups: PRESENTATION & DISCUSSIONS

Discussion in 'Do It Yourself' started by olMan, Jan 10, 2022.

  1. well we like what we do, and if you can find others to learn from and enjoy progress together. It is a wonderful thing.

    I like your plans, and it is all about having time indeed.
    Wich for the first time in my live I have right now.
    And I enjoy it to the fullest.
    Right now I am enjoying the grow while doing coffee. Live is good

    I am interested in your future plans.
    So keep posting
     

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  2. oh I think so too.
    Keep working on it.
    Who does not like to grow automated.
    And have easy controll on your phone.
     
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  3. What is it you have going on in there? I'm intrigued . Lol Those stalks wow. How long have you had them growing. You know what if you got time run the whole thing down top to bottom.
     
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  4. mits a funny cabinet.
    It’s only 100 cm high
    It has 4 autoflower afghan express.
    The just a week in flower
    But some good bone structure.

    dis Some heavy training in them and almost fried them twice.
    There in a small hydro box 10 liters.
    Surrounded by led panels.
    A 40 pocket scrog net that is filling up.
    Couple of weeks to go.
    It has on orange mirror glas door so the colours are different like sunglasses.
     

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  5. Nice. I was having a scale issue. Lol
    I saw as a full height room and when you use that scale it makes them look like literal tree stalks. Lol That's cool though use what you can. I used to grow autos in a box built under my desk maybe 80cm. Currently in a 2×4 tent with a 45 liter DWC setup that I'm in the very beginning of plans to build a semi stealh grow cabinet with the one of the goals being a system that can go 7 days with no or little input from me.
     
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  6. that sounds pretty good and your new plans too.
    I am building one too that can last for a week.
    I am half way there
    Check it out
     
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  7. you are damn right josh
    the more I dig into the whole the more I recon how much the industry melks us
    I have this sonoff TH16, a switch for 240V and an hygro temp module based on a si7021 module
    it is old tech, outdated, slow, big in size
    cost 25$

    for 4$ I bought a BME 280, very fast (sensitive on changes) and on top it has a pressure onboard as well
     
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  8. well it is actually veeery easy
    I know maria can grow in wide range of temp and hum, and some do not care other growers growing outside have no control of it as mother nature plays the beat
    in a tent controlling VPD is quite easy IMHO

    I am in a special situation, my environment is veeery dry in general
    the whole falt will never be more than 32/35% even seasons allow to run windows all open and outside is over 40% humidity, inside never more than 37%, thats the max I ever measured
    so I will always humidify and never DE-humdify which makes it easier to control

    ok so VPD, there is a lot of models if you check wikipedia, I run with vpdchart.com, or better calculated to be as close as possible to the model vpdchart uses

    upload_2022-3-5_1-47-20.png

    regualte the temp to you target, draw the crosshair in the chart according to legend below and check kpa
    hit show similar and hover over the dots to see the infomation

    what I did is figure out the calculation and make it up into a formula

    HTML:
    template:
      - sensor:
          - name: "IT RH Target"
            unit_of_measurement: "%"
            state: >
              {% set T = states('sensor.BME280_temperature') | float %}
              {% set svp = 0.61078 * e**((T * 17.2694)/(T + 237.3)) | float %}
              {% set vpd_target = states('input_number.vpd_target') | float %}
              {{ 100 * (1 -vpd_target / svp) | round(1) }}
    ok looks wierdo but is nothings else than:

    - I go to vpdchart and check for the kpa I want to keep
    - I enter the kpa value as a variable in homeassistant and apply the shown calculation
    - the code snippet creates a new variable, IT RH TARGET in %
    - that is the calculated RH value according to the temp measured in the tent

    so I measure constantly the temp and RH and based on temp measured get a target value for RH
    than the automation checks actual RH vs target RH and either turns on the humidifyer or tises exgaust RPM and lowers the RH

    sum it up
    just by setting the desired kpa, humidity will always be in VPD sync with temp :D

    cost ... nothing as temp and hygro are already measured
    just few lines for the target sensor calculation and the a helper variable to set kpa according to the seedling veg flower
     
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  9. If you look at all parts that we build with
    great stuff, wonderful.
    Here where I live in Amsterdam weed is expensive, gear too.
    To build something costs all to much.
    It is not funny anymore.
    And it is about time for change.
    Love to read this knowledge and learn from you.
    Right now I am building grow cabinets in different sizes for my group of friends.
    We are all long time close friends and we make music and fun together for 20 years now.
    We are family❤️
    All of us love weed and grow outdoor each summer.

    But they also fell in love with my little window home cabinet, wich is in my living room.
    Like a television.
    and the fun we have with adjusting and training the plants in the limited space.
    Trying out everything we know, and enjoying the results.
    And offcourse smoking last batch.

    so now I build one for all of us.
    Each one will be designed for certain amount and the location in and around the house.

    So I try to learn and find out what is out there.
    Each time cheaper, more efficient, more control and less energy use.
    See where it will lead too.
    And too oversee the development in time.
    Fun fun.
    So thanks for this grow wisdom, this is why I joined an online forum.
    I’m glad I choose this one.
     
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