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eyeRobot - The Robotic White Cane

Step 3Range Sensors

Range Sensors
Ultrasonics:
The eyeRobot carries 4 Ultrasonic rangefinders (MaxSonar EZ1). The ultrasonic sensors are positioned in an arc at the front of the robot to provide information about objects in front of and to the sides of the robot. They inform the robot about the range of the object and help it find a open route around that object and back onto its original path.

IR Rangefinders:
The eyeRobot also carries two IR sensors (GP2Y0A02YK). The IR rangefinders are positioned to face out 90 degrees to the right and left to aid the robot in wall following. They can also alert the robot of objects too close to its sides that the user may walk into.

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Author:shrimpy