引领

介绍

VEX AIM 编程机器人机身周围有六个 LED（发光二极管）。这些 LED 可以设置为不同的颜色，用于提供反馈、显示机器人状态，或使项目过程中更容易追踪机器人。

每个 LED 都可以单独设置，所有 LED 可以同时设置，或者可以使用元组将一组 LED 一起设置。

LED名称：

LED1	LED2	LED3
LED4	LED5	LED6
ALL_LEDS

以下是所有方法的列表：

操作——打开或关闭 LED 灯。

• on — Turns on one LED, all LEDs, or a group of LEDs.

• off — Turns off one LED, all LEDs, or a group of LEDs.

行动

on

on turns on one LED, all LEDs, or a group of LEDs.

Usage:
robot.led.on(led, color)

范围	描述
led	The LED or LEDs to turn on: A single LED, such as LED1 All LEDs with ALL_LEDS A group of LEDs in a tuple, such as (LED1, LED2)
color	Optional. The color to set the selected LED or LEDs to: BLACK BLUE CYAN GREEN ORANGE PURPLE RED TRANSPARENT WHITE (default) YELLOW You can also specify a custom color.

示例

# Turn all LEDs green while the screen is pressed
while True:
    if robot.screen.pressing():
        robot.led.on(ALL_LEDS, GREEN)
    else:
        robot.led.off(ALL_LEDS)

    wait(50, MSEC)

# Turn two LEDs red
robot.led.on((LED3, LED4), RED)

off

off turns off one LED, all LEDs, or a group of LEDs.

Usage:
robot.led.off(led)

范围	描述
led	The LED or LEDs to turn off: A single LED, such as LED1 All LEDs with ALL_LEDS A group of LEDs in a tuple, such as (LED1, LED2)

示例

# Turn all LEDs on for 2 seconds, then turn them off
robot.led.on(ALL_LEDS)
wait(2, SECONDS)
robot.led.off(ALL_LEDS)

# Turn off half of the LEDs
robot.led.on(ALL_LEDS)
wait(1, SECONDS)
robot.led.off((LED3, LED4, LED5))