pxt-ev3/docs/coding/reverse-beeper-3.md
Peli de Halleux 892a2d585f
Thresholds (#222)
* add threshold blocks

* updated strings

* added gap

* reorg color/gyro blocks

* fixing sound names

* adding stop block

* fixing exanmples
2018-01-09 12:46:48 -08:00

477 B

Reverse Beeper Activity 2

let beep = false
beep = true
control.runInBackground(function () {
    motors.largeBC.setSpeed(-20)
    sensors.ultrasonic4.pauseUntil(UltrasonicSensorEvent.ObjectNear)
    motors.largeBC.stop()
    beep = false
})
control.runInBackground(function () {
    while (beep) {
        if (sensors.ultrasonic4.distance() < 20) {
            music.playTone(440, sensors.ultrasonic4.distance())
            loops.pause(50)
        }
    }
})