Does Create3 iRobot have color scanners?

[fmorshed52]

How are you connecting to your Create 3?

Wi-Fi (ROS 2)

Computer(s) Model(s) and Operating System(s)

Windows XP

Which version of ROS 2 is installed on your computer?

Galactic

Which firmware version is installed on your robot?

Irrelevant to my question

Which RMW is your robot running?

I don't know

Does your robot have an assigned namespace? If so, please share.

No response

Is the robot connected to a network? If so, what is the network type?

No response

Are there multiple Create 3 robots connected to your network?

No

Is multicast enabled?

No

What is the Adapter Board's USB/BLE Toggle currently switched to?

None

Describe your question.

Does Create3 iRobot have color scanners?

I see in the line_following_events_3_areas.py example that there is an event defined as below under root_robots:
@event(robot.when_color_scanned, [ColorID.SKIP, ColorID.SKIP, ColorID.GREEN])
Does Create3 generate this event, or is this exclusive to root_robots? If it does not, is there a way to add the hardware to do that? Is the hardware present but not the software?

I am trying to make the Create3 robot follow a colored line and perform various tasks following the line, and this event seems to be perfect for what I need. Unfortunately the root robots are not expandable (does not support adding various hardware on it for my application).

[fmorshed52]

Continued...
ir_intensity was suggested to me for this purpose some time ago. I have not tried it. The description of ir_intensity topic says "the higher the intensity value is, the closer an obstacle is to the robot". Can "close" here be used, somehow, as color?

[fmorshed52]

Continued:
or, is it the cliff_intensity?

Reading the "Examples" in the "Robot Education" IDE, I see "utils", "tutorials", "root_robots", etc. Are the examples under "root_*" for the root robot, and none apply to the Create3?

[fmorshed52]

I am closing this discussion myself, and starting a new one after studying the matter some more.