Robot Project I

built by Douglas Isenberg

Click on an image to enlarge it
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Target Environment Locomotion Method
Indoors 4 Wheels
Sensors / Input Devices Actuators / Output Devices
Bump sensors
optical encoders
DC motors
Steering servo
Control Method Power Source
Autonomous Battery
CPU Type Operating System
BASIC Stamp None
Programming Lanuage Weight
Time to build Cost to build
URL for more information
I built this robot last year for a science fair project. It is really very simple, but has become more complicated as time went by. I started with simple bump sensors, as can be seen on the front and back. Later came an optical encoder system, which can also be seen. I have added, although not shown, another optical circuit that acts as a power switch, to shut the robot down in a dark area. I did this only to dabble with behavioral processing. The controller is a BSII. My code was mostly based on subroutines, and printed out ranged from 1 to about 4 pages long. I only say this because I would like to know how other people write programs. Perhaps what I like best about the robot is the chasis. It is standard aluminum stock, but I took care in making sure it can be adjusted and redesigned. For example, the optical encoder hardware can be adjusted for a thick or thin disk, the gear box can be moved forward or backwards, and the sensitivity of the bumpers can be adjusted, to name a few. My web site has information on other robotic projects I am working on, as well as this one. Email:

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