光学传感器#

介绍#

光学传感器结合了RGB颜色传感器和接近传感器，用于检测附近物体的颜色、亮度和是否存在。它还可以利用内置的LED灯照亮物体，以实现更精确的检测。

VEX 光学传感器。

以下是可用模块列表：

set Optical light#

The set Optical light stack block turns the Optical Sensor’s LED on or off. This can help increase the sensor’s accuracy when detecting colors.

设定 [Optical 1 v] 灯 [on v]

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

状态

The state of the Optical Sensor’s light: on or off.

 
当开始
[Turn on the sensor's LED.]
设定 [Optical 1 v] 灯 [on v]

设置光学功率#

The set Optical light power stack block sets the brightness of the Optical Sensor’s LED. The light can help the Optical Sensor detect objects and colors more clearly.

A higher percentage makes the light brighter. A lower percentage makes the light dimmer.

If the Optical Sensor’s light is off, setting the light power above 0% will turn the light on.

If the Optical Sensor’s light is on, setting the light power at 0% will turn the light off.

设定 [Optical 1 v] 灯亮度为 [50]%

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

亮度

The brightness to set the Optical Sensor’s light to, from 0% to 100%. Use whole numbers.

 
当开始
[Turn on the sensor's LED at half brightness.]
设定 [Optical 1 v] 灯亮度为 [50]%

Optical found an object#

The Optical found an object Boolean block reports whether or not the Optical Sensor detects an object within range.

  • True — The Optical Sensor detects an object.

  • False — The Optical Sensor does not detect an object.

<[Optical 1 v] 发现对象？>

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

例子

向前行驶直至检测到物体。#
当开始
[Drive forward until an object is found.]
驱动 [向前 v]
等到 <[Optical 1 v] 发现对象？>
驱动停止

Optical detects color#

The Optical detects color Boolean block reports whether the Optical Sensor detects a specified color, based on the detected hue value.

  • True – The sensor detects the specified color.

  • False – The sensor does not detect the specified color.

Note: The Optical Sensor is looking for hue ranges that match the specified color. For detecting specific hue ranges, see the Optical hue reporter block.

<[Optical 1 v] 测得 [红色 v]？>

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

颜色

Which color to look for:

  • red – A detected hue value between 340° - 20°.
  • green – A detected hue value between 80° - 140°.
  • blue – A detected hue value between 200° - 240°.
  • yellow – A detected hue value between 40° - 60°.
  • orange – A detected hue value between 20° - 40°.
  • purple – A detected hue value between 240° - 280°.
  • cyan – A detected hue value between 140° - 200°.

例子

继续行驶直至检测到红色为止。#
当开始
[Drive forward until red is found.]
驱动 [向前 v]
等到 <[Optical 1 v] 测得 [红色 v]？>
驱动停止

光学亮度#

The Optical brightness reporter block reports how much light is reflected back to the Optical Sensor, as a percentage from 0% to 100%.

A higher percentage means more light is reflected back to the Optical Sensor. A lower percentage means less light is reflected back.

([Optical 1 v] 亮度百分比)

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

光学色调#

The Optical hue reporter block reports the hue detected by the Optical Sensor as a number from 0 to 359 degrees.

Hue is a way to describe color using numbers around a color wheel.

VEX 色轮，显示围绕圆周的颜色度数，红色为 0 度，随着数值增加，颜色依次过渡到彩虹的颜色。

([Optical 1 v] 色调度数)

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

例子

当开始
[Look for the color pink using hue.]
永久循环
清屏
在屏幕上设定光标至 [1] 行 [1] 列
如果 <[300] [math_less_than v] ([Optical 1 v] 色调度数) [math_less_than v] [359]> 那么
在屏幕上打印 [This is pink!]▶
否则
在屏幕上打印 [No pink detected!]▶

光学#

The when Optical hat block runs the attached stack of blocks whenever the Optical Sensor detects or loses an object.

当 [Optical 1 v] [detects v] 一个对象 :: hat events

参数

描述

设备

Which Optical Sensor to use, configured in the Devices window.

状态

When the attached stack of blocks will run: detects runs when an undetected object is detected, while loses runs when a detected object is now no longer detected.
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