Build a Hot/Cold Detector with LEDs

[youtube http://www.youtube.com/watch?v=Y2yZ2q9G6bc?wmode=opaque&w=620&h=349] In this project, we will combine an Arduino, a Ping sensor, and a small assortment of components, to build a project that senses distances as “hot/cold.” Once built, we’ll walk through the software running our basic “sketch,” (what an Arduino program is called) and then experiment with variations... Read more »

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