Mini Gorilla Tent Grow Club

robincnn

robincnn

Well-Known Member
Greengenes707 said:
Nice
What's the concept...going off CO2 levels or rate of rise in a sealed area?
Click to expand...
Once the tent co2 level is same as outside tent then ventilation off and sealed. Then will see how fast co2 levels drop with diffrent lighting. Then reset co2 levela again repeat with diffrent light.
Not sure if there is there is any other better way. What is rate of rise?

I will be testing with lavender and basil. Matt Damon has built a similar rig in mars and will be giving us data for cannabis:bigjoint:
 
Last edited:
Greengenes707

Greengenes707

Well-Known Member
robincnn said:
Once the tent co2 level is same as outside tent then ventilation off and sealed. Then will see how fast co2 levels drop with diffrent lighting. Then reset co2 levela again repeat with diffrent light.
Not sure if there is there is any other better way. What is rate of rise?

I will be testing with lavender and basil. Matt Damon has built a similar rig in mars and will be giving us data for cannabis:bigjoint:
Click to expand...
I should have said rate of decline for your test. My bad.

The way McCree and such do it is to actually measure O levels as they increased due to the release in carbon fixation. Basically the inverse of yours.
 
Abiqua

Abiqua

Well-Known Member
robincnn said:
Here is what i am trying to make. I still need to add the co2 sensor and monos. Rest all is functional.
Co2 sensor will monitor how fast co2 is consumed by plants indicating rate of photosynthesis.
Will also add humidity sensor to see how light impacts transpiration.

Once completed this will be used to test stuff like
1) Do flashing light increase photosynthesis
2) Does adding red,deep red, photo red, blue along with white light helps drive up photosynthesis significantly
3) Does blue monos impact transpiration rate
4) any tests you can think of.


View attachment 3634203
Click to expand...
are you bit banging the PWM controls or did you use a separate module...I guess software but maybe I am missing something :) :peace:

Been wanting to do this too, certain variation for a while, but I am still playing around with bluetooth monitoring of the Tc points right now, Good luck Rob!

the LDD bucks are great step too!
powered! by the LPC?
Hmmm....thats a good shortcut
 
robincnn

robincnn

Well-Known Member
Greengenes707 said:
I should have said rate of decline for your test. My bad.

The way McCree and such do it is to actually measure O levels as they increased due to the release in carbon fixation. Basically the inverse of yours.
Click to expand...
So much O2 already so increase will be small. Not sure if a sensor with arduino can give me accuracy.
I thought Co2 being less would be easier to measure if it goes down from 600ppm to 300ppm
Will have to read up some more for accurate setup.

 
Greengenes707

Greengenes707

Well-Known Member
robincnn said:
So much O2 already so increase will be small. Not sure if a sensor with arduino can give me accuracy.
I thought Co2 being less would be easier to measure if it goes down from 600ppm to 300ppm
Will have to read up some more for accurate setup.
Click to expand...
I was just thinking of how I know if it done in most studies. And why I said increase.

Your way here is the best I can think of too with what we have available on a basic level.
 
robincnn

robincnn

Well-Known Member
Abiqua said:
are you bit banging the PWM controls or did you use a separate module...I guess software but maybe I am missing something :) :peace:

Been wanting to do this too, certain variation for a while, but I am still playing around with bluetooth monitoring of the Tc points right now, Good luck Rob!

the LDD bucks are great step too!
powered! by the LPC?
Hmmm....thats a good shortcut
Click to expand...
New to micro controller programming. I think commended code is bit banging with digital write

I plan to use analogwrite for PWM. With analog write Audrino can do other processing. There is a way to change PWM frequency with some internal registers, still reading up on that.
Bit banging makes it easier to control frequency and set specific on/off periods but Audrino cannot do anything else otherwise timing can go off
Right the LDD are powered with LPV-60-48. LDD gives the flexibility of connecting strips, monos and cobs
Bluetooth monitoring of the Tc points sounds interesting.

Tested with a table clock size CO2 meter. Took 4 hours for Co2 levels to go from 600 to 500ppm
Need a bigger plant and check for leaks. If the co2 levels go with with arduinosensor will add monos too.
 
Last edited:
mc130p

mc130p

Well-Known Member
The reason the O2 is measured is so that the CO2 input can be kept constant, instead of decreasing over time as it is consumed in the sealed box. This decrease in CO2 concentration will decrease photosynthesis rates artificially and skew your results.
 
salmonetin

salmonetin

Well-Known Member
...maybe... https://www.atlas-scientific.com/

http://www.co2meter.com/collections/co2-sensors/products/s8-miniature-co2-sensor

http://www.co2meter.com/collections/co2-sensors/products/k-30-co2-sensor-module

http://www.co2meter.com/collections/co2-sensors/products/sprintir-100-percent-co2-sensor?utm_content=US&utm_source=VerticalResponse&utm_medium=Email&utm_term=SprintIR high-speed wide range CO2 sensor&utm_campaign=COZIR and Arduino | Fastest Sensor Measures CO2 in Breathcontent

http://www.co2meter.com/pages/downloads

http://www.co2meter.com/pages/indoor-air-quality-links

http://www.instructables.com/id/Easy-To-Build-Oxygen-Analyzer-Using-An-Arduino-Com/

http://www.seeedstudio.com/wiki/Grove_-_CO2_Sensor

http://www.seeedstudio.com/wiki/Grove_-_Gas_Sensor(O₂)

https://www.sparkfun.com/products/11194

...on (air sensors) o2 or co2 sensors look or ask for her expected life too... seems to me its too short... for an expensive sensor... from my inexpert pov...

Saludos
 
Last edited:
D

Devildenis69

Well-Known Member
guod said:
does not work...

View attachment 3634529
Click to expand...
Hey man, I'm designing my first arduino grow tent, so thx for your outcome, it's very useful to me
could you tell me more about the diode around the fan, I believe it's used to redirect the current stored in big motors when they are powered off, but it really useful for a 12V pc fan ?

I'm not saying it's not useful, but trying to understand why it is, cheers ;)
 
guod

guod

Well-Known Member
Devildenis69 said:
Hey man, I'm designing my first arduino grow tent, so thx for your outcome, it's very useful to me
could you tell me more about the diode around the fan, I believe it's used to redirect the current stored in big motors when they are powered off, but it really useful for a 12V pc fan ?

I'm not saying it's not useful, but trying to understand why it is, cheers ;)
Click to expand...
the Catch- or Flyback-diode eliminates the Voltage Spike from an inductor (relais-coil or Motor). this Spike is high enough to kill the Transistor.

"The rapid collapse of the magnetic field as the switch opens can cause very large voltage spikes, because the amount of voltage induced is dependent on the rate of change of the magenetic field. The high voltages produced can lead to arcing at the switch contacts, as the voltage jumps the gap between the contacts. These large voltage spikes can also damage other components in a circuit, especially semiconductors, so care must be taken in the design of circuits containing inductors, or driving inductive loads, to prevent these spikes."

http://www.learnabout-electronics.org/ac_theory/dc_ccts44.php
 
D

Devildenis69

Well-Known Member
thx for the reply its crystal clear now

and robincnn: your tent looks beatiful, Im gonna get some led stripes soon, they seem very nice, what are you growing in there ?

and I'm gonna drop this little idea here, as most of you guys are quiet handy with electronic,
what do you think of using some mirror current in order to dim some leds powered by one big driver ?
Instead of LDD drivers which cost more and drop a bit the efficiency ...

the dimming would be done, by a potentiometer between the "emitter" of each transistor and the Gnd, so Re1 and 2 on this scheme:

 
salmonetin

salmonetin

Well-Known Member
...new good tuto...from my pov... ...SDS i like a lot the resistive way too....



https://learn.sparkfun.com/tutorials/rotary-switch-potentiometer-hookup-guide

https://github.com/sparkfun/Rotary_Switch_Potentiometer

https://learn.sparkfun.com/tutorials/voltage-dividers

https://learn.sparkfun.com/tutorials/analog-to-digital-conversion

https://learn.sparkfun.com/tutorials/uh-oh-battery-level-indicator-hookup-guide

...

https://www.rollitup.org/t/meanwell-led-drivers-3-in-1-dimming-function.838760/

https://www.rollitup.org/t/3in1-dimming-part-ii-a-more-advanced-approach.855193/

https://www.rollitup.org/t/co2-fixation-calculation-tool-for-cobs.896232/

https://www.rollitup.org/t/diy-ssl-complete-protection-for-two-led-drivers.878904/

https://www.rollitup.org/t/multiple-driver-soft-on-set.866330/

https://www.rollitup.org/t/the-autos-dias-project.855633/

...

http://www.australianrobotics.com.au/news/fuelling-your-arduino-why-you-should-use-an-external-power-breakout

http://www.rugged-circuits.com/10-ways-to-destroy-an-arduino/

http://arduino-info.wikispaces.com/ArduinoPower

http://arduino-info.wikispaces.com/RelayIsolation

http://www.dustynrobots.com/academia/teaching/seeing-sensors-how-to-visualize-and-save-arduino-sensed-data/

...

http://coralux.net/?p=437

http://www.formfactors.org/developer\specs\4_Wire_PWM_Spec.pdf

....

...eseee Guod...;)


:peace:

Saludos
 
Last edited:
salmonetin

salmonetin

Well-Known Member
Greengenes707 said:
I have a question.
For the external power form the arduino. Does that power go off, or are you keeping the arduino on the whole time, and just the lights go off.

I use a storm and that is the problem. If you integrate it into a light and use the lights power source, when the light goes off, so does the arduino, and with the storm, all settings get lost so when it comes back on sunrise and sunset are gone. So I have been using it as a room controller vs into each light because of that.

Does a standard arduino hold its settings if powered off?
Click to expand...
..to @Greengenes707... your storm have a battery-backed Real Time Clock (RTC) (DS1307)... check your battery...(Coin Cell Battery CR1220)....maybe your battery are dead...or have problems with her connections... ...my inexpert pov...

....battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost....

...nominal voltage of 3.0 V and nominal capacity of 40 mAh... ...Will keep time for 5 years or more...

https://www.adafruit.com/product/380

https://www.adafruit.com/product/264

https://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit?view=all

https://learn.adafruit.com/downloads/pdf/ds1307-real-time-clock-breakout-board-kit.pdf

...if battery its ok...then its a bad configuration on soft... ask to coralux...for your configuration...

pd... on RTCs i prefer the DS3231...with a cell battery CR1632...more precise...then less adjust on programation of time... my inexpert pov...

...Other RTC solutions may drift minutes per month, especially in extreme temperature ranges...the ChronoDot (DS3231) will drift less than a minute per year. This makes the ChronoDot (DS3231) very well suited for time critical applications that cannot be regularly synchronized to an external clock...

https://www.adafruit.com/products/255

https://learn.adafruit.com/adafruit-ds3231-precision-rtc-breakout?view=all

https://learn.adafruit.com/downloads/pdf/adafruit-ds3231-precision-rtc-breakout.pdf

...

pd....a good tutto about battery powering....

https://learn.adafruit.com/battery-powering-wearable-electronics?view=all

https://learn.adafruit.com/downloads/pdf/battery-powering-wearable-electronics.pdf

https://learn.adafruit.com/all-about-batteries?view=all

https://learn.adafruit.com/downloads/pdf/all-about-batteries.pdf

https://learn.adafruit.com/li-ion-and-lipoly-batteries?view=all

https://learn.adafruit.com/downloads/pdf/li-ion-and-lipoly-batteries.pdf

https://learn.adafruit.com/adafruit-microlipo-and-minilipo-battery-chargers?view=all

https://learn.adafruit.com/downloads/pdf/adafruit-microlipo-and-minilipo-battery-chargers.pdf

https://learn.sparkfun.com/tutorials/battery-technologies

https://learn.sparkfun.com/tutorials/how-to-power-a-project

https://learn.sparkfun.com/tutorials/how-lithium-polymer-batteries-are-made

...i know...with battery powering maybe the lcd its a problem... but i think its a small problem... we can use a microswitch to power the lcd...or use other software solution....my inexpert pov...

pd1...helps to you?... your problem its solved?....

pd2...Bluetooth monitoring of the Tc points sounds interesting... i agree... no more clues bro Abiqua?....on low energy?... what modul used?...

pd3...https://arduino-info.wikispaces.com/Arduino-PWM-Frequency

...we use a pwm frequency for fans (some freqs makes sounds or noise) ... and for pwm drivers we must use other (some freqs makes visible fliquers) ....

...and we must take care of minim PWM values and maximum PWM values on both... on fans and drivers...overpass this limits are dangerous for both hardwares...my inexpert pov...

pd4... ...the storm use a rotary encoder... ....esta bueno el chianti clasico ese...

http://playground.arduino.cc/Main/RotaryEncoders

https://www.adafruit.com/products/377

https://www.sparkfun.com/products/9117

http://bildr.org/2012/08/rotary-encoder-arduino/

http://www.circuitsathome.com/mcu/programming/reading-rotary-encoder-on-arduino

...a digital potenciometer with a rotary encoder?....maybe too complicated...

http://www.electronics-lab.com/project/digipot-rotary-encoder-digital-potentiometer/

...we can use digital potenciometers or rotary encoders on arduino way to dimm 3 en 1 meanwell drivers?... ...maybe sds or guod can answer me... or maybe other tech...

...rotary switch potentiometer...its resistive way but only manual .... there are some hardware to use with arduino way on resistive way (with resistors)... or only with various reles with diferents value resistor ... 1 rele 10kohm ...2 rele 20kohm...etc... values are only examples...

...i know lot of links bob.... ....its tipical on my posts...sorry...


...ok Wilson... time to infusion... back to chozo...

ooopss ....sorry bro robincnn for hijack and saturing your thread...ahhh red wine helps too....

:peace:

Saludos
 
Last edited:
You must log in or register to reply here.
Top