46 lines
1.3 KiB
Markdown
46 lines
1.3 KiB
Markdown
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# Servo Write Pin
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Writes a value to the servo on to the specified [pin](/microbit/device/pins) (``P0``, ``P1``, ``P2``), controlling the shaft accordingly.
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* on a standard servo, this will set the angle of the shaft (in degrees), moving the shaft to that orientation.
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* on a continuous rotation servo, this will set the speed of the servo (with 0 being full-speed in one direction, 180 being full speed in the other, and a value near 90 being 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` - [String](/microbit/reference/types/string); the pin name ("P0", "P1", or "P2")
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* `value` - a [Number](/microbit/reference/types/number) between 0 and 180 included
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### Examples
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* setting the shaft angle to mid point 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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* control 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(Dimensions.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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[BBC micro:bit pins](/microbit/device/pins), [servo set pulse](/microbit/reference/pins/servo-set-pulse)
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