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Arcanum
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Registered: 01/30/10 
Posts: 871
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: cronicr]
#23918098 - 12/11/16 10:06 PM (7 years, 1 month ago) |
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So, I have one 27cm x 36cm x 12cm "tray" with 5 lbs of horse poo substrate, 6 cm deep, spawned with 2 lbs of fully colonized rye roughly 48 hours ago. The "tray" is covered with plastic wrap with a few small holes poked into it.
I slipped the MQ135 sensor into the tray(without removing the plastic wrap) and it is reading consistently at 3500-4000 ppm (at the same calibration I did the tests mentioned in the original post). That's roughly 8 times the concentration of the room it is in.
The tub that I will be fruiting the tray in is 50 x 40 x 32 cm, or 64000 cubic cm.
Supposing that the majority of the CO2 in the tray is concentrated in the empty space above the substrate (with a volume above 6,000 cubic cm), had I been colonizing the substrate as a monotub, the CO2 concentration 48 hours into colonizing bulk substrate, I can estimate would be about 900 (according to my sensor). That is ((64000 - 6000) / 6000) * 3900 + 500 OR ((volume of tub - volume of substrate) / volume of empty space in tray) * CO2 concentration in empty space of tray + ambient CO2 level. Effectively, that's taking the CO2 rich air in the empty space of the tray and dispersing it into what would be the empty space of the tub. Before people jump on that, it's an estimation... I'm not saying it's necessarily going to be accurate.
Obviously, we don't want FAE during colonization, but this just serves as evidence that there is measurable CO2 production by actively growing mushrooms to be read inside of an enclosed growing space.
Now, can anyone say with any certainty whether or not fruiting shrooms produce more or less CO2 than when colonizing?
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: Arcanum]
#23918108 - 12/11/16 10:12 PM (7 years, 1 month ago) |
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Yes they have said it with certainty as it was tested n makes sense as it is not metabolizing as much as it did
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Pastywhyte
Say hello to my little friend



Registered: 09/15/12
Posts: 37,810
Loc: Canada
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: cronicr] 1
#23918123 - 12/11/16 10:17 PM (7 years, 1 month ago) |
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I have FAE when I colonize my monos lately. Ends up with a more plural first flush but not really a bad thing in terms of yield. Definitely colonizes fast and pins a bit faster too.
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liloldme
( ͝° ͜ʖ͡°)つ=D



Registered: 05/15/04
Posts: 5,087
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: Pastywhyte]
#23918224 - 12/11/16 11:09 PM (7 years, 1 month ago) |
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Something to consider, take a look at the ESP8266 if you're not already using it about 3 dollars each. It's just like the arduino but has Wifi built into it already. You can do html injections to host a webpage right off the chip with image URL redirects like the picture below to control the settings if you don't want to have to re-upload modified C coding every time you want to make an adjustment holy shit this is a long ass sentence.


One of my dork out sessions https://www.shroomery.org/forums/showflat.php/Number/23026284
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Arcanum
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Registered: 01/30/10 
Posts: 871
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: liloldme]
#23918257 - 12/11/16 11:33 PM (7 years, 1 month ago) |
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Quote:
cronicr said: Yes they have said it with certainty as it was tested n makes sense as it is not metabolizing as much as it did
Who is they? I initially figured the same thing, but wouldn't the fungus still be metabolizing significant amounts of nutrients to produce the biomass for fruit bodies or is there some kind of other process going on?
In any case, I still expect there will be a measurable increase in CO2 levels during fruiting. The tray has only just started to colonize the substrate and it's already producing enough.
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Pastywhyte said: I have FAE when I colonize my monos lately. Ends up with a more plural first flush but not really a bad thing in terms of yield. Definitely colonizes fast and pins a bit faster too.
Interesting... by FAE, are you just referring to holes in the tub or are you doing something else? See, this sort of thing is why I think CO2 monitoring could be useful, if it can be done cheaply/easily enough. Maybe there is a FAE sweet spot for colonization... not too much, not too little. Surely, one could figure it out without a CO2 sensor but it would help to have one for more empirical experimentation.
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liloldme said: Something to consider, take a look at the ESP8266 if you're not already using it about 3 dollars each. It's just like the arduino but has Wifi built into it already. You can do html injections to host a webpage right off the chip with image URL redirects like the picture below to control the settings if you don't want to have to re-upload modified C coding every time you want to make an adjustment holy shit this is a long ass sentence.
Though I haven't actually played with them yet, I do already have a couple of ESP8266s sitting in one of my chip boxes (along with several other modules I haven't even taken out of the anti-static packaging yet)... plus a Wemos microcontroller with one built in. I've seen some of the things people have done with them and it blows me away what can be done with a $3 chip. It probably single-handedly progressed DIY IoT technology by 5 years... and designed by a relatively unknown Chinese manufacturer, no less.
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: Arcanum]
#23918531 - 12/12/16 03:36 AM (7 years, 1 month ago) |
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Id bet it would be measurable amounts for sure but lower then colonizing simply due to the fae.
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FckingNameless
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: cronicr]
#23918765 - 12/12/16 07:26 AM (7 years, 1 month ago) |
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OP, already have an arduino, am I g2g??
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Arcanum
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Posts: 871
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: cronicr]
#23919353 - 12/12/16 11:55 AM (7 years, 1 month ago) |
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Quote:
FckingNameless said: OP, already have an arduino, am I g2g??

Is there a reason you're getting both a Lua and an ESP8266? The Lua is a microcontroller in and of itself with a Wifi chip built in. I mean, as cheap as they are, it doesn't hurt to buy both, but just make sure you know what you are getting.
I wouldn't get the AM2001. I can't find any Arduino libraries for translating its analog output to a value so you'd be on your own as far as how to interface with it... which can be tricky as datasheets for many of Chinese manufactured parts are not translated very well.
I'd suggest the DHT22, which is what I'm using. It not only senses humidity (0-100% with 2-5% accuracy) but temperature as well. There are a number of well-written libraries to read its digital output, and you can probably find it cheaper than that AM2001 (I get most of my parts from Aliexpress as well ). Only downside is that it won't update more than once every 2 seconds or so, but that's not a big deal in this use case.
It's not necessary but I also recommended getting a display of some sort... like a 2 x 16 character LCD... for displaying the values. You could send the data via serial to a computer (and from there do some cool things with it using the Processing language), but it helps to not necessarily have the Arduino tethered to a computer. I recently bought this one and it works great. It comes prebuilt with an I2C interface chip and still only costs $2.
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cronicr said: Id bet it would be measurable amounts for sure but lower then colonizing simply due to the fae.
Right, that makes sense. Well, I'm going find out either way eventually!
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FckingNameless
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: Arcanum]
#23920559 - 12/12/16 06:19 PM (7 years, 1 month ago) |
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Quote:
Arcanum said:
Is there a reason you're getting both a Lua and an ESP8266? The Lua is a microcontroller in and of itself with a Wifi chip built in. I mean, as cheap as they are, it doesn't hurt to buy both, but just make sure you know what you are getting.
yeah this one was just for blinking some leds through the internet lol
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Arcanum said:
I wouldn't get the AM2001. I can't find any Arduino libraries for translating its analog output to a value so you'd be on your own as far as how to interface with it... which can be tricky as datasheets for many of Chinese manufactured parts are not translated very well.
I'd suggest the DHT22, which is what I'm using. It not only senses humidity (0-100% with 2-5% accuracy) but temperature as well. There are a number of well-written libraries to read its digital output, and you can probably find it cheaper than that AM2001 (I get most of my parts from Aliexpress as well ). Only downside is that it won't update more than once every 2 seconds or so, but that's not a big deal in this use case.
It's not necessary but I also recommended getting a display of some sort... like a 2 x 16 character LCD... for displaying the values. You could send the data via serial to a computer (and from there do some cool things with it using the Processing language), but it helps to not necessarily have the Arduino tethered to a computer. I recently bought this one and it works great. It comes prebuilt with an I2C interface chip and still only costs $2.
IDK, read something about it being good for environments with higher RH, may get both in case one of them fail
in Stamets book he says that CO2 is beneficial during colonization and recommended a 5000-10000ppm range as "ideal", what range you would try to keep them with this setup?
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FckingNameless
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: FckingNameless]
#23927204 - 12/14/16 06:22 PM (7 years, 1 month ago) |
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LogDawg
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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: Arcanum]
#24868536 - 12/25/17 09:39 PM (6 years, 1 month ago) |
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I don't understand why most of the people on this website are so aggressive towards these automation projects. I get that for most of these projects simplicity is key, but it doesn't hurt to try and to improve things and learn from mistakes. This is definitely a lot to read over and probably is overcomplicated and time-wasting for what most people want to put in, but this is awesome for people who want to learn about automation. Your decision to use those sensors were creative, super cheap, and saved me some time researching. The 1st world needs people like you to tackle new challenges and make life easier for the rest of society
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Josex
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Registered: 11/13/15
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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: LogDawg]
#24868629 - 12/25/17 11:24 PM (6 years, 1 month ago) |
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Grow a couple tubs and then you'd understand the hate towards these contraptions. They're awesome if you like to tinker and mess with electronics, it'd probably make you feel so clever and shit... But cultivation-wise? They're useless, a lot of work n trouble and have no place in this hobby.
Edited by Josex (12/25/17 11:30 PM)
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Craboulas
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Registered: 07/24/18
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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: Josex]
#25454273 - 09/12/18 07:34 AM (5 years, 4 months ago) |
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The culture on this forum is sad and disappointing. For a group of people with easy access to mind altering compounds that can foster a greater sense of connection and goodwill, the mindset tends to be close minded, and hateful. Not enough focus on set and setting, I suppose.
Those who don't want to put in the effort for something like this, or have the comprehension to understand the concepts, would rather lash out than to let others explore and enjoy.
If everyone just chanted the same mantra "follow the f*cking tek", no progress would ever be made. There is so much contradiction on these forums about what is the best practice. Which means that things are constantly evolving. People latch on to one particular method, as if it is perfectly optimal, simply because it hasn't completely failed. When somebody tries to introduce a whiff of scientific method and you guys act like a bunch of religious nuts confronted with witchcraft.
To the OP: thank you for taking the time to write this up and share with the board. Some of us appreciate it!
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,889
Loc: Milky way
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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: Craboulas] 2
#25454280 - 09/12/18 07:39 AM (5 years, 4 months ago) |
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Lol wut, this forum relentlessly pushes advancement and new ideas...
Ideas constantly evolve and change.
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mrmazdarx9
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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: bodhisatta]
#25455133 - 09/12/18 02:49 PM (5 years, 4 months ago) |
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I love its always the new people who have to be the high and mighty douche looking down their noses because we say an idea isnt good, has been done, doesnt work. Then they disappear or get the point and and become the ones saying it wont work.
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Craboulas
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Re: Extremely affordable method to roughly monitor CO2 concentration (for FAE automation) [Re: Munchauzen]
#25456708 - 09/13/18 06:57 AM (5 years, 4 months ago) |
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Quote:
bodhisatta said: Lol wut, this forum relentlessly pushes advancement and new ideas...
Ideas constantly evolve and change.
I'm not saying that you or others here don't experiment, or push for improvement; but you have to admit that many here attack people for doing so.
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Munchauzen said: I'm not sure whats wrong with a plastic tote with holes in it. What you call "automation" sounds like a fuckload of work.
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Josex said: No need to read your walls of text... You're overcomplicating stuff, that feels unshroomy mang and shrooms like it simple. Fucking the follow tek, succeed and then see if you need to do all that bullshit
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Srirachi said: When people quote RR nonstop, it is usually a sign that they have zero actual experience.
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Josex said: Grow a couple tubs and then you'd understand the hate towards these contraptions. They're awesome if you like to tinker and mess with electronics, it'd probably make you feel so clever and shit... But cultivation-wise? They're useless, a lot of work n trouble and have no place in this hobby.
Edited by Craboulas (09/13/18 07:25 AM)
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Craboulas
Stranger

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Re: Extremely affordable method to roughly monitor CO2 concentration (FOR FUN AND EXPERIMENTATION) [Re: mrmazdarx9]
#25456712 - 09/13/18 06:58 AM (5 years, 4 months ago) |
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Quote:
mrmazdarx9 said: I love its always the new people who have to be the high and mighty douche looking down their noses because we say an idea isnt good, has been done, doesnt work. Then they disappear or get the point and and become the ones saying it wont work.
Who is "we"? Do you have a turd in your pocket? Have you made a compelling argument about why monitoring CO2 levels in a fruiting chamber "isn't good / doesn't work"?
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