Build a Programmable Line Following Robot for Under $50.00

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Build a Programmable Line Following Robot for Under $50.00

Postby buildsmartrobots » June 3rd, 2012, 10:56 pm

This Desktop Line Following Robot is build using a Pololu chassis, Tamiya gearbox / wheels, and a EMGRobotics
MSP430G2553TB Robot Controller Board. The robot uses 4 analog IR range sensors to follow a line.
Although there are only 4 sensors, they are able to collect data equivalent to 7 sensors.
The IR LED and IR transistor for each sensor can be read separately so the IR light from sensor 1 can be measured
by the IR transistor on sensor 2. By combining the data and normalizing it using come math (and a calibration procedure)
a virtual sensor 3 can be created. I will explain more about how this works in the next post.

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