playTone(frequency, duration, pause [, flags [, freqIncr]])
Play a tone
@status current Introduced in 2.1.0
frequency(number) tone frequency in Hz (from 150 to 15000)duration(number) length of the tone in millisecondspause(number) length of the silence after the tone in millisecondsflags(number):0 or not presentplay with normal priority.PLAY_BACKGROUNDplay in background (built in vario function uses this context)PLAY_NOWplay immediately
freqIncr(number) positive number increases the tone pitch (frequency with time), negative number decreases it. The frequency changes every 10 milliseconds, the change isfreqIncr * 10Hz. The valid range is from -127 to 127.
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