Tuna Bot - Keith Horowitz's Fishy creation.
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Keith took a very innovative approach to building
a mobile robot base. He used tuna fish cans for wheels, with
rubber bands added for traction, and mounted the servos inside
the wheels. Really neat design idea, and utterly original.
The circuit board is Dennis Clark's design which as an IR
proximity detector built into it. Click
here to see details (schematics and source code for preprogrammed
ICs) of his design. |
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| This shows the lighted line sensors that look down to detect
the white ring at edge of the sumo ring. It also shows the forward
looking IR proximity detector. The yellow LED near center of
board that is lit indicates that my hand is detected on the
robot's right. |
Closer look at the downlooking sensors. In sumo mode, only
one of these is used. Keith also designed it to be a line follower
and in this mode, both sensors are active. The sensor is a visible
light red LED and a photosensor crammed into the black plastic
housings beside the LEDs. |
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This diassembled view shows the servos in thier
frame, cleverly made from simple paper clips. The 2 9V batteries
are as well held inside this frame. 1 9V provides power to the
electronics, the other is strictly servo motor power. |
Source code: Tuna bot
program in BASCOM BASIC language
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