How are bats able to see and locate objects?

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• How are bats able to see and locate objects?
• What about submarines?

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Ultrasonic Sensor
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Ultrasonic Sensor

• One of the two sensors that give your robot
  vision
• Enables your robot to see and detect objects
• Avoid obstacles, sense and measure distance, and
  detect movement

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Ultrasonic Sensor

• Measures distance in centimeters and in inches
• Is able to measure distances from 0 to 255
  centimeters with a precision of /- 3 cm
• Large sized objects with hard surfaces return the
  best readings
• Objects made of soft fabric or that are curved
  or are very thin or small can be difficult for
  the sensor to detect

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Challenge

• Construct arm to attach sensor
• For this challenge, your robot must complete five
  laps around the given square course.
• The robot must use its ultrasonic sensor to
  accomplish this task, and should start facing
  forward with its wheels on any of the four lines
  outside the square

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• How did you use the design process?
• Which objects did your robot detect? Not detect?
• What be some real life uses for an ultrasonic
  sensor?