pxt-calliope/docs/examples/stop-watch.md
2018-04-21 10:52:09 -07:00

30 lines
619 B
Markdown

# Stop watch
Press ``A`` to start the counter. Press ``A`` again to stop and display the count.
```blocks
let msec = 0
let sec = 0
let end = 0
let d = 0
let start = 0
input.onButtonPressed(Button.A, () => {
if (!(start)) {
start = input.runningTime()
end = 0
} else {
d = input.runningTime() - start
start = 0
basic.clearScreen()
basic.pause(1000)
sec = d / 1000
msec = d % 1000
basic.showString("" + sec + "." + msec)
}
})
basic.forever(() => {
if (start) {
led.toggle(Math.randomInt(5), Math.randomInt(5))
}
})
```