伺服#

初始化伺服类 #

使用以下构造函数创建伺服输出：

The servo constructor creates a servo object in the specified Three Wire Port.

范围	描述
`port`	The 3-Wire Port to use for the Servo Output, whether it’s a port on the `Brain`, or a `3-Wire Expander`.

A Brain or 3-Wire Expander must be created first before they can be used to create an object with the servo Class constructor.

// Create the Brain.
brain Brain;
// Construct a Servo Output "Servo" with the servo class.
servo Servo = servo(Brain.ThreeWirePort.A);

This Servo object will be used in all subsequent examples throughout this API documentation when referring to servo class methods.

该方法通过以下方式调用：

The setPosition(value, units) method sets the position of the Servo using a percentage.

参数	描述
`value`	伺服器的整数值。
`units`	The only valid unit for the units in this usecase is `percent`.

**返回：**无。

// Set the servo position to 10 percent.
Servo.setPosition(10, percent);

The setPosition(value, units) method sets the position of the Servo using a Rotation Unit.

参数	描述
`value`	伺服器的双倍值。
`units`	A valid `rotationUnit`.

**返回：**无。

// Set the servo position to 45.5 degrees.
Servo.setPosition(45.5, degrees);