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Old 01-02-2015, 09:41 PM   #66511 (permalink)
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Old 01-02-2015, 09:58 PM   #66512 (permalink)
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Picked up a little OLED screen to use as an output and wired some sensors to it for temperature, humidity, and soil moisture.
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Old 01-03-2015, 04:07 AM   #66513 (permalink)
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I am 50% chubbed right now
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Old 01-03-2015, 07:20 AM   #66514 (permalink)
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Garden geeking! Ha, cool! My man would love that, he likes thermometers.....its a thing
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Old 01-03-2015, 09:14 AM   #66515 (permalink)
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It gets better.

If the temperature drops it turns on a heater.
If the temperature is too high it turns on an exhaust fan.
If humidity is too low it turns on a little pump to spray mist.
If humidity is too high... nothing yet.
For soil moisture it actives a water pump.
I control the cycle of lights so I can change them*.



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Old 01-03-2015, 06:22 PM   #66516 (permalink)
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That's one fancy grow op. I'm intrigued.
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Old 01-03-2015, 06:40 PM   #66517 (permalink)
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The whole shebang is designed to run off 12 volt so I can make it battery powered and solar tendered.
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Old 01-03-2015, 07:38 PM   #66518 (permalink)
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Just machined this block of aluminum. The heater element is a PTC thermister.
It increases resistance the hotter it gets, no matter how much voltage you pump into it, limiting the maximum amount of heat.
(I.e. it can never catch fire)
But, just like a space heater it needs a little fan to stir the air. I found an old PC fan.
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Old 01-03-2015, 10:50 PM   #66519 (permalink)
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fuckin wow
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Old 01-03-2015, 10:59 PM   #66520 (permalink)
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