(5) Click“Variables”to find and drag“set distance to 0”to“forever”;
Click“MecanumRobot”to find and drag“Ultrasonic”to the 0 behind
the”to”:
(6) Click“Logic”to find and drag“if true then...else”to“forever”;
Find and drag“=”to “true”;
Click“Variables”to find and drag“distance”on the left of“=”;
Click the little triangle behind“=”to choose“<”;
Change the 2 behind “>”to 20:
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