pxt-calliope/docs/reference/pins/analog-set-pitch-pin.md
2016-03-25 16:47:20 -07:00

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# Analog Set Pitch Pin
Specify which [pin](/microbit/device/pins) (P0, P1, P2) is used to generate tones.
```sig
pins.analogSetPitchPin(AnalogPin.P0)
```
### Parameters
* `name` - [String](/microbit/reference/types/string); the pin name ("P0", "P1", or "P2")
### Example
```
pins.analogSetPitchPin(AnalogPin.P0)
let frequency = 440
let duration = 1000
pins.analogPitch(frequency, duration)
```
### Some common notes
* 440 = A4 on piano
* see [piano key frequencies ](https://en.wikipedia.org/wiki/Piano_key_frequencies) for more information
### See also
[micro:bit pins](/microbit/device/pins), [analog set period](/microbit/reference/pins/analog-set-period), [analog pitch](/microbit/reference/pins/analog-pitch)