OVMR by Andreas Sundqvist

OVMR - Obstacle Avoiding Micro Robot
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This robot is one of my first robot projects, and so faar quite simple. The idea was to build a
small robot with the ability to move around and avoid obstacles.
It uses antennas at the moment but I´m planning to improve it´s sensor mechanism to use IR light.
This robot was the part of my project in school.

Processor
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The processor I use is the pic16f84a, (from Microchip)
Which is controlling all inputs from the antennas, and when
an object is near it also sends output to the motorcontroller.

Motors
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Two DC-engines with a simple "gearbox" from two similar CD-players.
(those motors which controls the laserarm)

Parts used
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*DC Motors
*Driver circuit (H-bridge)
*Main controller circuit(built on PIC16F84A)
*Antennas
*Battery for PIC circuit

Problems encountered
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The only problem I´ve found this far is the fact that OVMR is
in a need of high current. The driver curcuits are fed with appr 10V.
And because batteries or ackumulators are quite heavy, I´m using an adapter at this time.

Time to build
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Well, it took me about 2-3 weeks to build it. But I wasn´t working on it all the time.. So it´s
difficult to say.

Cost
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Not much I´m afraid :)
The only "expensive" part was the PIC.

Andreas Sundqvist, andreas.sundqvist@berg.se
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Visit my link to the robot page (temporary under construction)
http://www.gymnasiet.berg.se/~andreas/

Email: andreas.sundqvist@berg.se