Archive for May 3rd, 2005

Soil Water Monitoring Techniques

Posted in May 3rd, 2005

by Ron Amundson in gadgets, ideas, and headaches

Soil Water Monitoring Techniques As garden season is upon us, I thought a good discussion of soil moisture sensing was in order. Years ago, when I was designing radiation thermometers, ag was a potential market that few addressed. I’m guessing it was mostly an economic issue. The sensors of that era were spendy, and it [...]

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low cost IPOD style knob, and simple too

Posted in May 3rd, 2005

by Ron Amundson in Cool Projects

qt510_101.pdf (application/pdf Object) This is a slick unit, the QT510, and you can buy them from Digikey in low quantities for a song. I’ve often thought the Ipod wheel made a lot of sense, but the manufacturing complxities of fsr’s made it a challenge to replicate. With QPROX technology, its going to be a lot [...]

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