input.onButtonPressed(Button.A, function () {
    text = "" + text + buchstabe
})
input.onGesture(Gesture.Shake, function () {
    text = ""
    music.playTone(330, music.beat(BeatFraction.Quarter))
    music.playTone(262, music.beat(BeatFraction.Whole))
    basic.pause(1000)
})
input.onButtonPressed(Button.B, function () {
    radio.sendString(text)
    basic.showString(text)
})
let position = 0
let poti = 0
let buchstabe = ""
let text = ""
radio.setGroup(0)
text = ""
let lastposition = 0
basic.forever(function () {
    poti = pins.analogReadPin(AnalogPin.P1)
    position = pins.map(
    poti,
    0,
    1020,
    0,
    25
    )
    buchstabe = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".charAt(position)
    if (lastposition != position) {
        music.playTone(262, music.beat(BeatFraction.Sixteenth))
    }
    lastposition = position
    basic.showString(buchstabe)
})
