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Edited and expanded advanced topic.

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Ron Hale-Evans 2016-06-30 11:02:28 -07:00
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docs/reference/pins/analog-set-period.md
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# Analog Set Period
Configures the period of the Pulse Width Modulation (PWM) on the specified analog [pin](/device/pins) (``P0``, ``P1`` or ``P2``). Prior to calling this function, the given pin should be set as analog.
Configure the period of Pulse Width Modulation (PWM) on the specified
analog [pin](/device/pins).
Before you call this function, you should set the specified pin as analog.
```sig
pins.analogSetPeriod(AnalogPin.P0, 20000)
@ -8,10 +10,11 @@ pins.analogSetPeriod(AnalogPin.P0, 20000)
### Parameters
* `name` - [String](/reference/types/string); the pin name ("P0", "P1", or "P2")
* `micros` - a [Number](/reference/types/number) representing the micro-seconds of the analog period.
* `pin`: a [string](/reference/types/string) that specifies the pin to configure (`P0` through `P4`, or `P10`)
* `μs`: a [number](/reference/types/number) that specifies the analog period in microseconds.
The following code
The following code first sets `P0` to analog with **analog write
pin**, and then sets the PWM period of `P0` to 20,000 microseconds.
```blocks
pins.analogWritePin(AnalogPin.P0, 512)
@ -20,5 +23,9 @@ pins.analogSetPeriod(AnalogPin.P0, 20000)
### See also
[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)
[micro:bit pins](/device/pins),
[on pin pressed](/reference/input/on-pin-pressed),
[analog read pin](/reference/pins/analog-read-pin),
[analog write pin](/reference/pins/analog-write-pin),
[digital read pin](/reference/pins/digital-read-pin),
[digital write pin](/reference/pins/digital-write-pin)