basic.showIcon(IconNames.Happy)
basic.pause(2000)
basic.forever(function () {
    basic.showIcon(IconNames.Heart)
    pins.digitalWritePin(DigitalPin.P0, 1)
    basic.pause(2000)
    basic.showIcon(IconNames.SmallHeart)
    pins.digitalWritePin(DigitalPin.P0, 0)
    basic.pause(2000)
})