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Further Experiments

There are a number of things you can do to experiment with Mousey. You can obviously try different types of light sensors (photoresistor eyes, such as cadmium-sulfide sensors, and photodiode eyes). You also can connect a trimpot (a variable resistor) to the eyes so that you can better “tune” their sensitivity. You also can add a subcircuit that will enable you to create two proper touch-sensing whiskers on Mousey, instead of the rather un-mouselike front bumper.

These hardware hacks are too much to detail here, but you can find out more about them (and other cool hacks) in Dave Hrynkiw’s Junkbots, Bugbots, and Bots on Wheels book. Also look for schematics and installation instructions for additional Mousey hacks on our book’s Web page (www.streettech.com/robotbook).


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