BEAM robotics is about getting the most complex and interesting behaviors from the simplest circuits and components. The SunBEAM Seeker is a very simple LM386-based light-seeking robot based on Randy Sargent's classic "Herbie" BEAM design. Build this little bot and it will follow a black line traced on a white floor or, with the photosensors pointing upward as in this version, seek out the brightest light source in a room. It is also descended, in part, from our own Mousey the Junkbot, and adds a special tailwheel made from a roller-lever limit switch to make the robot automatically turn on when you set it down, and off again when you pick it back up.
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Published on December 19, 2013 16:30