pxt-calliope/docs/reference/pins/analog-write-pin.md

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# Analog Write Pin
Write an **analog** signal (`0` through `1023`) to the
[pin](/device/pins) you say.
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```sig
pins.analogWritePin(AnalogPin.P0, 400)
```
### Parameters
* a [string](/reference/types/string) that is the pin name you say (`P0` through `P4`, or `P10`)
* a [number](/reference/types/number) from `0` through `1023`
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### Example
This program writes `1023` to pin `P0`.
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```blocks
pins.analogWritePin(AnalogPin.P0, 1023)
```
#### ~hint
When you tell it to write `256` (for example), this function does not
_really_ write `256`. Instead, it writes a lot of different numbers,
and their average is `256`.
#### ~
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### See also
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[micro:bit pins](/device/pins), [on pin pressed](/reference/input/on-pin-pressed), [analog read pin](/reference/pins/analog-read-pin), [digital read pin](/reference/pins/digital-read-pin), [digital write pin](/reference/pins/digital-write-pin)
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