# Three Point Turn Activity 2 ```blocks brick.buttonEnter.onEvent(ButtonEvent.Bumped, function () { motors.largeBC.tank(75, 30) loops.pause(1500) motors.largeBC.tank(-30, -75) sensors.ultrasonic4.pauseUntil(UltrasonicSensorEvent.ObjectNear); motors.largeBC.tank(0, 0) loops.pause(1000) motors.largeBC.tank(50, 50) loops.pause(3000) }) ```