引领

介绍

VEX AIM 编码机器人配备可编程 LED（发光二极管），可根据项目情况改变颜色。这些 LED 可以单独设置，也可以同时设置，以提供视觉反馈或指示机器人状态。

LED名称：

LED1	LED2	LED3
LED4	LED5	LED6
ALL_LEDS

• on – Turns one or all LEDs on and sets their color.

• off – Turns one or all LEDs off.

行动

on

on sets the color of one or all of the robot’s LEDs.

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

范围	描述
led	The LED or LEDs to turn on. You can use a single LED like LED1, all LEDs with ALL_LEDS, or a group of LEDs in a tuple like (LED1, LED2). See all available LED names here.
color	Optional. Sets the LED color. Options include: BLACK BLUE CYAN GREEN ORANGE PURPLE RED TRANSPARENT WHITE (default) YELLOW You can also specify a custom color.

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

    wait(50, MSEC)

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

off

off turns off one or all of the robot’s LEDs.

Usage:
robot.led.off(led)

参数	描述
led	The LED or LEDs to turn off. You can use a single LED like LED1, all LEDs with ALL_LEDS, or a group of LEDs in a tuple like (LED1, LED2). See all available LED names here.

# Turn the LEDs on for 2 seconds.
robot.led.on(ALL_LEDS)
wait(2, SECONDS)
robot.led.off(ALL_LEDS)

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