LEGO EV3 Color Sensor (45506)

General

This sensor uses the msensor device class.

	Value
type_id	29
# Modes	6
Connection	UART

Modes

	Mode 0	Mode 1	Mode 2	Mode 3	Mode 4	Mode 51
mode	COL-REFLECT	COL-AMBIENT	COL-COLOR	REF-RAW	RGB-RAW	COL-CAL
Description	Reflected	Ambient	Color	Raw Reflected	Raw Color Components	Calibration???
num_values	1	1	1	2	3	4
value0	Reflected light intensity	Ambient light intensity	Detected color2	Reflected/Ambient light intensity???	Reflected red light intensity???
Min	0 (no reflected light detected)	0 (no ambient light detected)	0 (none)	0 (???)	0 (???)
Max	100 (maximum reflected light detected)	100 (maximum ambient light detected)	7 (brown)	1020 (???)	1020 (???)
value1				Reflected/Ambient light intensity???	Reflected green light intensity???
Min				0 (???)	0 (???)
Max				1020 (???)	1020 (???)
value2					Reflected blue light intensity???
Min					0 (???)
Min					1020 (???)
units	pct (percentage)	pct (percentage)	col (color2)	none	none	none
dp (decimal places)	0	0	0	0	0	0
LED State	Red LED on	Blue LED on	Rapidly cycles red green and blue. Appears white or "rainbow"	Red LED on	Rapidly cycles red green and blue. Appears white or "rainbow"	Rapidly cycles red green and blue. Appears white or "rainbow"

Values in the tables that look like ```this``` are the names of sysfs attributes or values returned by said attributes.

[1]: When in COL-CAL mode, the color sensor does not respond to the keep-alive sent from the EV3 brick. As a result, the sensor will time out and reset after 1-2 seconds in COL-CAL mode. When using this mode, you should set the mode, do what you need to and change back to another mode within 1 second. Of course, LMS2012 does not appear to use this mode when "calibrating" the color sensor, so it may prove to be useless anyway.

[2]: Color values:

Value	Color
0	none - sensor too close to object
1	black
2	blue
3	green
4	yellow
5	red
6	white
7	brown