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Rewriting play-tone for correctness & clarity.

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Ron Hale-Evans 2016-05-23 11:50:08 -07:00
parent d1a3892eab
commit 324fd45fb6
1 changed files with 7 additions and 4 deletions
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docs/reference/music/play-tone.md
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# Play Tone # Play Tone
Plays a music tone through pin ``P0`` for the given duration. Play a musical tone through pin ``P0`` of the micro:bit for as long as you say.
## Simulator ## Simulator
Simulation of this function is available in many, but not all browsers. This function only works on the micro:bit and in some browsers.
```sig ```sig
music.playTone(440, 120) music.playTone(440, 120)
@ -12,11 +12,14 @@ music.playTone(440, 120)
### Parameters ### Parameters
* `frequency` : [Number](/reference/types/number) - the frequency of the note (in Herz) * `Hz` is the [Number](/reference/types/number) of Hertz (the frequency, how high or low the tone is).
* `ms`: [Number](/reference/types/number) - the duration of the note (milliseconds) * `ms` is the [Number](/reference/types/number) of milliseconds that the tone lasts.
## Example ## Example
This example stores the musical note C in the variable `freq`.
Next, it plays that note for 1000 milliseconds (one second).
```blocks ```blocks
let freq = music.noteFrequency(Note.C) let freq = music.noteFrequency(Note.C)
music.playTone(freq, 1000) music.playTone(freq, 1000)