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This thread brings a smile to my face, I really need to hang out here more often :)

I just make my own timers, we live in an age where it has never been easier to create you own things like this. Arduino/MSP430/PicKit whatever your poison plus an STCValve.com process solenoid and you have yourself one seriously tunable timer that is pretty easy to build. Add in a relay unit and...

Haha, Now I'm going to have to try that with my cherry tomato. I built a table for it and a couple other veggies and they love it. And man do those tomatoes taste good, cant wait for my strawberries to start fruiting :)

Oh good catch ommp, never even thought about that, even with me looking at it like 5 times :) oh well, Ill reupload it in a min Thanks for the heads up! I am using the hanwei mg-811 its of the gas reactive type prolly what you have tested but it seems to work rather well in our perfered range...

Sounds like a nice system ommp! Def like you idea of the 3.3 system all around will make xbee and more accurate sensor readings easier. Most of my system is 5v but I like to interface MRs, and I use level shifter when needed to step it down to 3.3 or 1.8v. I designed an Xbee breakout that can be...

The plastic 19 dollar STC sloenoids work just fine for what we do, I even had em up to 125 psi and they were operating fine. If you have the money def go with the SS solenoids, but if you wanna save some money or have a lot of valves the plastic ones can be used as well. I would avoid all...

I run about 900 as well, GH basic line plus liquid koolbloom. Other then that just a tad of ph down at mix time and a few hundred ml of h202 every few days.

Those roots are looking good mike, I've been weaning them back from about where yours are for a little while now, just been doing it real slow but now they are into flower so I doubt I will get the fuzzies. On another note my old shurflo wore out a week or so ago and in a pinch I put my little...

I dont use the sestos, any decent micro controller with a good xtal will give you plenty of accuracy and timing to what ever you want from micro seconds to years. There are many commecial boards out there when paired with a relay board(solid state or mechanical) gives you your timer. You could...

My timers work just fine too TB just to let you know :) Havent had one failure yet and you of course set the time to whatever you want in ms or even us if you wanted too(not that any soleniod could use that short of timing cycles). While the relays might only have a limited number of cycles itll...

I tell you what I have had some blasted HDD issues the last part of this year, I had 3 drives shit themselves in my raid array at the same time just a couple days ago and a few months back I had a couple sandforce ssds shit on me as well(the Corsair is working great with new firmware). Murphy...

Dammit Hammer, I told you to stop following me at work :( Now my boss is gonna see me getting lunch.

I design and build them myself, kinda a hobby I have been working on for about 6 years now. I have quite a few designs already done and a lot coming down the pipe. soon I will have the eC, and CO2 portions finalized like the 2 you see above. the pH intereface is like 20bucks and the dual relay...

I have a few setups all self controlled by "arduinos", one has been running for around a year now with no major hardware failures which is suprising the "Beta" condition it is in :) I already have a ton of code which can be used however people want, it needs some tweaking and a few hours work to...

Yeah the Ardunio unit is quite amazing to say the least. It always impresses me and I am glad I started development with these things. The cost can be a bit high, but compared to what some of these commercial units cost is nothing. I have a little unit that is 2 relays and an atmega328 on it, it...

If I lived near you I would wire that pressure switch up in a heart beat for you Mike! Just had to change my shurflo POS out for a real one, didnt take but a couple minutes and its actually a nicer setup :) This round I actually have my nozzles pointing up from the bottom of the root chamber. It...

Electric heating?, hell just loose one of the baseboards, and use it to power your grow room :) The lights will keep it plenty warm after all.

Most likely you'll just need an Uno, but there are many types from many manufacturers. hell even I kinda have a couple now. The main difference between the various ones really comes down to a couple things, are they compact designs, are they reference, or are they specific. Do they have onboard...

Sure thing TB, its really not that hard and this is a good project to kinda jump into it too. It sounds like you already got the idea down. I can send you a couple relay boards that should have no problem interfacing the timer, although there may be better boards(one that has N.O or N.C...

TB, you should look into Arduino or a similar platform. If you need help I am here to help you figure it out. Even if you arent a hardware guy or a programmer it is easy to get started(and hooked) on it. With a few lines of code and a few bucks and a bit of patients you can have your timer timed...