Introduction: Add an Ultrasonic Sonar to the Robot Vacuum Cleaner

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Sonar LV-MaxSonar-EZ1 is tested.
More than one sonar can be connected such way.
Controlled by Arduino with motor shield.
Sonar is connected to analog input pin.
Project is on GitHub https://github.com/satr/Robot-vacuum-cleaner-controlled-by-Arduino-and-motor-shield