pxt-ev3
Version:
LEGO MINDSTORMS EV3 for Microsoft MakeCode
14 lines (12 loc) • 344 B
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# Reverse Beeper Activity 2
```blocks
forever(function () {
if (motors.largeB.speed() != 0 && sensors.ultrasonic4.distance() < 20) {
music.playTone(440, sensors.ultrasonic4.distance());
pause(50)
}
})
motors.largeBC.run(-20);
sensors.ultrasonic4.pauseUntil(UltrasonicSensorEvent.ObjectNear);
motors.largeBC.stop();
```