22 lines
485 B
Markdown
22 lines
485 B
Markdown
---
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module: [kind=event] alarm
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see: os.setAlarm To start an alarm.
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---
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The @{timer} event is fired when an alarm started with @{os.setAlarm} completes.
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## Return Values
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1. @{string}: The event name.
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2. @{number}: The ID of the alarm that finished.
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## Example
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Starts a timer and then prints its ID:
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```lua
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local alarmID = os.setAlarm(os.time() + 0.05)
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local event, id
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repeat
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event, id = os.pullEvent("alarm")
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until id == alarmID
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print("Alarm with ID " .. id .. " was fired")
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```
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