Scorer for micro:bit reaction game. Uses servo to display score.

ScorerForReactionGame.js

let angle = 0
radio.onDataPacketReceived( ({ receivedNumber }) =>  {
    if (receivedNumber < 0) {
        basic.showIcon(IconNames.Angry)
    } else {
        pins.servoWritePin(AnalogPin.P2, pins.map(
        3000 - Math.min(receivedNumber, 3000),
        0,
        3000,
        5,
        175
        ))
        basic.showNumber(receivedNumber)
        if (receivedNumber < 2) {
            doFastHandsAlarm()
        }
    }
})
input.onButtonPressed(Button.B, () => {
    angle += 10
    if (angle > 175) {
        angle = 5
    }
    pins.servoWritePin(AnalogPin.P2, angle)
    radio.sendNumber(angle)
})
function doFastHandsAlarm()  {
    basic.pause(1000)
    basic.showIcon(IconNames.Fabulous)
    basic.pause(2000)
    basic.showLeds(`
        . . . . .
        . . . . .
        . . . . .
        . . . . .
        . . . . .
        `)
}
input.onButtonPressed(Button.A, () => {
    radio.sendNumber(Math.random(2701))
})
radio.setGroup(44)

Changed range of the scorer to 0ms - 3000ms so that very young or slower kids still chart.