The heart of the circuit is the LM35DZ temperature sensor which is factory-calibrated in the Celsius (or Centigrade) scale with a linear Degree->Volt conversion function. The output voltage (at pin 2) changes linearly with temperature from 0V (0oC) to 1000mV (100oC).
It’s been such a fun experience doing this Crochet-Along with you all! We’ve had some great participants who have made some incredible dolls. If you want to start now check out the lessons here. Giveaway Results! The Winner of 1 signed copy of Tiny Yarn Animals by Tamie Snow: Flickr user : SugarCoatedCreations The Winner […]
I reviewed The Boy Who Harnessed the Wind for Good. I think it’s one of the best books I’ve ever read. Here’s an excerpt of my review: William Kamkwamba’s parents couldn’t afford the $80 yearly tuition for their son’s school. The boy sneaked into the classroom anyway, dodging administrators for a few weeks until they […]
The They Might Be Giants love just doesn’t stop over here, check out Theremin Cat by Hine Mizushima for TMBG’s Here Comes Science.
I love vanilla, and so of course really good homemade vanilla extract is the holy grail. We ran a vanilla extract DIY in Volume 07 of CRAFT, but I love this “semi-scientific” approach to testing out homemade vanilla recipes on Build/Make/Craft/Bake. (And what better way to taste test vanilla than in whipped cream??)
One of the things that many experienced yarnies take for granted is how to know what hook or needles to use for the yarn you have. This is especially important if you are making up your own project as you go along or if you are altering a pattern you already have. Being able to […]
I am working on a new project, and I need an electrical connection that can rotate 360 degrees. You can buy a slip ring or rotating electrical connector, but then again, you can attempt to make your own.
