50 lines
1.3 KiB
Markdown
50 lines
1.3 KiB
Markdown
# Servo Write Pin
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Write a value to the servo on the specified [pin](/device/pins)
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and control the shaft.
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This function will move the shaft of a standard servo to the specified
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angle, or set the speed of a continuous rotation servo. (`0` specifies
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full speed in one direction, `180` specifies full speed in the other,
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and approximately `90` specifies no movement.)
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```sig
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pins.servoWritePin(AnalogPin.P0, 180)
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```
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## Parameters
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* ``name``: a [string](/types/string) that specifies the pin name (`P0` through `P4`, or `P10`)
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* ``value``: a [number](/types/number) from `0` through `180`
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## Examples
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### Setting the shaft angle to midpoint on a servo
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```blocks
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pins.servoWritePin(AnalogPin.P0, 90)
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```
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### Controlling the shaft by using the tilt information of the accelerometer
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```blocks
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basic.forever(() => {
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let millig = input.acceleration(Dimension.X)
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// map accelerometer readings to angle
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let angle = pins.map(millig, -1023, 1023, 0, 180)
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pins.servoWritePin(AnalogPin.P0, angle)
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})
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```
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### Setting the full speed on a continuous servo
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```blocks
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pins.servoWritePin(AnalogPin.P0, 0)
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```
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## See also
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[@boardname@ pins](/device/pins), [servo set pulse](/reference/pins/servo-set-pulse)
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[Brief Guide to Servos](https://www.kitronik.co.uk/pdf/a-brief-guide-to-servos.pdf)
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