basic.forever(function () {
    DriveBit.setLedColor(0xFF0000)
    basic.pause(1000)
    DriveBit.setLedColor(0x18E600)
    basic.pause(1000)
    DriveBit.setLedColor(0x0080FF)
    basic.pause(1000)
    DriveBit.setLedColor(0xFFFFFF)
    basic.pause(1000)
})