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| General Indoor Growing If you're growing indoors, this is the forum for you. Discuss lighting, mediums, feeding, efficiency and more. |
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02-29-2008, 08:07 AM
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| Registered User Join Date: Feb 2008
Posts: 50
 |  LED Water Sensor: $1.50 - Build your own.
The link below is a tutorial on how to make your own watering sensor. Basically the led lights up when your soil is dry, and when you water it it turns off. http://nurne.blogspot.com/2008/01/water-me-man.html Using this instead of poking your finger into the soil can save you a little bit of time. *edit* How to build your own ppm tester: http://blog.makezine.com/archive/200...ater_qual.html *edit, just buy one.* I'll be updating my grow log this weekend as well. Last edited by MidgetMan; 02-29-2008 at 08:17 AM. |
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02-29-2008, 08:19 AM
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| Registered User Join Date: Dec 2007
Posts: 138
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Haha seems awesome. The fact that the kid made amazing schematics for that brings me back to those physics days of drawing those models and shit. That seems like a very promising invention only because the person that made it actually used his head!
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