This circuit is used to create a simple "edgebot" sumo robot. Being an edgebot refers that it will repeat the same backup/turn/go forward action when it's single edge sensor detects the edge of the ring. This version of the circuit is quite simple, and always turns the same way.
Arduino Parts and Other Things, Too
Dave Hrynkiw
September 11, 2009
Remember the other week when we mentioned how the Arduino Parts category was looking rather thin? Well, we've gone ahead and fattened it up a bit with the following new items:
You might be wondering what the heck does a power jack have to do with Arduino? Well, that's actually the same unit we use to deliver power to the Freeduino SB. 
So if you have the burning desire to make any modifications or need such a jack for making your own Arduino design you'll know where to look.
Hey, check it out - there's a Round II of the weekly New Product Showdown! Ding ding!
That's right, it may be the end of summer and it's rapidly getting colder and darker but WE'VE GOT A NEW SOLAR CELL! It's a pretty small unit too, great for compact projects. Like powering a certain red LED to light-up a transparent breadboard. Ok, that might be pushing it. And yet a lit up breadboard sure would look sexy...
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Arduino Uno and Neeeew York City!
We're back from the Open Source Hardware Summit and the Maker Faire! Did lots; learned lots; got lots of touristy things done too. One of the main highlights was meeting and listening to talks by three of the principle members of the Arduino team. They took pity on English-speakers, and named the new revision the […]
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.