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LArduino Ultrasonic 4b: Collision Avoidance (loop)

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LArduino Ultrasonic 4b: Collision Avoidance (loop)

Modify the code so that the "too close" distance is 4 inches, and the LED blinks blue instead of green while the robot moves.

Hardware
LArduino
Workspace Load Save Ch Ch Shell Console
Lock
roboblocklyA768.ch
Rubbish bin
Time