Syntax:
[void] sysinfo.beep(Int frequency, Int duration)
Description:
The beep method produces a beep tone in a specified
frequency for a specified duration.
Argument:
frequency:
Defines the frequency of the tone measured in Hz (Hertz).
Note: The maximum and minimum values for frequency are naturally device-specific. If the specified frequency is out of the device's supported range, the maximum frequency is applied.
duration:
Defines the duration of how long the beep tone lasts. The period is measured in milliseconds.
If the duration is 0, the beep tone will last infinitely.
Return value:
This method does not return a value.
Remarks:
To stop an infinitive beep, call the beep method again with any value
that is different from 0.
Example code:
function beepAlert() { // call the beep function with frequency 220Hz // for the duration 2 seconds sysinfo.beep(220, 2000); }