信号塔

信号塔命令只能与 CTE 信号塔一起使用。

初始化 SignalTower 类

使用以下构造函数创建信号塔：

arm.signal_tower

此构造函数不使用任何参数。

# Construct a Signal Tower "signaltower_1" with the
# arm.signal_tower class.
signaltower_1 = arm.signal_tower

This signaltower_1 object will be used in all subsequent examples throughout this API documentation when referring to SignalTower class methods.

类方法

set_color()

The set_color(color, state) method is used to set the Signal Tower’s color and state indefinitely, or until the method is used again.

范围	描述
color	A valid SignalTowerColorType.
state	A valid SignalTowerStateType.

**返回：**无

# Set the Signal Tower to start blinking the blue LED.
signaltower_1.set_color(signal_tower.BLUE, signal_tower.BLINK)