Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: airman00 on November 18, 2007, 01:17:05 PM
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I need a robot to follow a line and go around obstacles which may be present on the line .
Now , should I just use one IR sensor that is stationary or should I use one scanning IR sensor( on a servo)?
Would the scanning be overkill for detecting an object , going around the object, and then finding the line again?
what do you guys think?
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Hmmmm, I'd just use a photoresistor and a green LED paired up. If green light reflects off an object, it will come back to your photoresistor. But it also depends on how big your robot is . . .
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small robot, and the entire robot fits in a 22cm circle ( around 8 inches)
stationary it is...
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use three of these:
http://www.robotshop.ca/home/products/robot-parts/sensors/contact-sensors/sharp-gp2y0d340k-ir-sensor.html
one in the front center, and one on each front corner.
or an ir sharp range finer on a servo
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The reason I said photoresistor+LED was because it has a very large sensor angle (like sonar), whereas the sharp IR's are precision based, in which case they need to be scanned.