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yea that mega, not just 16 CXA...one thingy can control loads of stuff... and also with "easy" plug and play stuff like this: http://www.ebay.com/itm/Keypad-Shield-1602-LCD-For-Arduino-MEGA-2560-1280-UNO-R3-MEGA2560-MEGA1280-/171058768559?pt=LH_DefaultDomain_0&hash=item27d3e5aaaf I built a menu...

I was temp Controlling once with ardu, i found switching stuff with this very convinient: http://www.ebay.com/itm/5V-Eight-8-Channel-Relay-Module-With-optocoupler-For-PIC-AVR-DSP-ARM-Arduino-/191114725447?pt=LH_DefaultDomain_0&hash=item2c7f534847 opto controlled relay plug and Play

should be 16

So that does mean Indagrow Pontoon with flower intiatior thingy is not working waste?

Hi, which Problem will too much deep red cause?

Plants Need like 1-2 hrs to revert pFr to pr, then the actual night time beginns. This happens automatically in darkness. You could try using some far red 730nm leds at the end of the 12hr light cycle. This will manually Speed up this process which then results in longer night time even if the...

Heyho, I looked into that Greek Astir Grow SDS mentioned. He writes about his light schedule for his Autos that its 20/4. And im wondering 20hrs of 288W. If I use the same amount of power/time for regular 12/12 it would mean a power draw of 480W and that he grew about 0,8g/W which is nice but...

Hi, has someone of you conducted tests using quite some 630 and 660 during veg? It suppossedly increases root growth a lot. On my first experimens just using 660 and White on tomatoes vs sunlight tomatos I had the same Impression.

Thank you. But the text seems inconclusive: "Plants grow fastest [...] (22°-26° C)" "During dark [...] temperature [...] 10˚ F (-12˚ C) cooler than the lit period without any negative effect" "At temperatures below 60° F (15° C), photosynthesis and plant metabolism slow...

Yea cold concrete floor. I just checked the temps using a IR Thermometer. No Air circ running. At the wooden ground of the cabinet its 18,5 °C and on the top 21,9°C. Id say thats a lot of difference. And even last time when I realized that diffence, there were 3x 120mm fans running. Also I just...

In the Basement there is no Access to sunlight and laying 20meters of cable to put them on the Roof is no viable Option to me. I dont want to go low on yield. In that 0,5x0,7x2m im aiming for about 220-230W led, building my new Panels right now. I think in my first grow I had too much W for...

Thank you for your replies. Well im using led and my first grow went well, so now its time to improve. For my 2nd grow im trying to get much more efficient. This means Im even reducing the light wattage and spread the light more evenly on my grow area. Maybe I also will let the intake take...

Hi, I have to fight with low temps, especially durings "lights off". 0,5 x 0,7 x 2meters. Currently its the normal way with exhaust on top and intake all over the cabinet. I want to turn that around and put the intake at the top and the carbonfilter and exhaustfan at the bottom and put in a 2nd...

is this circuitry necessary? If i remember correctly last time i tried to pwm those strips i used a unp -something multitransistor Array and a 3$ arduino micro clone. -ok besides that it could be fun to build it on ur own... But strings must not be too Long, but as I just learned this would be...

Hi, https://www.rollitup.org/led-other-lighting/658111-what-kind-light-mj-likes-2.html#post9114719

have you guys seen this? http://growershouse.com/images/ALTEST_infographic_1.pdf http://growershouse.com/blog/300-400w-alternative-lighting-review-comparison-test/ All ledpanels quite shitty except one. And whats up with c mh and cdm? I know no photomorph considered...but still..

Why would you go complete indoor with roof in a large grow op, is electricity almost for free in the us? Glass roof and switching light intensity on as needed, id think...and Focus additionally on intracanopy lighting.

hm. Doesnt Commercial grow op mean = greenhouse. Id imagine with Led you could have a Problem as the footprint might be much bigger compared to hps blocking the valuable sunlight

Hi, I asked you about those chinese 10-100W led Arrays. Do you have any Info about them, which tech or any other insight? Are those the same epiled/epistar/bridge Chips or is it something else?

Maybe A51 just found that study and thought lets roll. How do those generic chinese arrays work? Its different from a "real" cob right? Is it the same type of ledchips as in other 1W chips just clustered or is it something different and how about their reds and cold whites -same arguments for...