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For information on the latest version, please have a look at GL013301.

set_state_led_color

This function sets the LED color state of the robot arm by defining the intensity of each RGB (Red, Green, Blue) component.

Each color channel can be either ON (1) or OFF (0), allowing for a combination of up to seven distinct LED colors.

Definition
DRFLEx.h within class CDRFLEx, public section (line 996)

bool set_state_led_color(int red, int green, int blue)
{
    return _set_state_led_color(_rbtCtrl, red, green, blue);
};

Parameter

Parameter Name	Type	Default	Description
red	int		Red LED state (0 or 1)
green	int		Green LED state (0 or 1)
blue	int		Blue LED state (0 or 1)

Color Combination Table

Enum #	R	G	B	Color
0	0	0	0	Off (no light)
1	1	0	0	RED
2	0	1	0	GREEN
3	1	1	0	YELLOW
4	0	0	1	BLUE
5	1	0	1	MAGENTA
6	0	1	1	CYAN
7	1	1	1	WHITE

Return

Value	Description
0	Fail — LED color could not be set.
1	Success — LED color successfully changed.

Example

#include "DRFLEx.h"
#include <thread>
#include <chrono>
using namespace DRAFramework;

int main() {
    CDRFLEx Drfl;

    // Indicate robot initialization state — set LED to blue
    Drfl.set_state_led_color(0, 0, 1);
    std::this_thread::sleep_for(std::chrono::seconds(2));

    // Indicate robot active/motion state — set LED to red
    Drfl.set_state_led_color(1, 0, 0);
    std::this_thread::sleep_for(std::chrono::seconds(3));

    // Indicate process completion — set LED to green
    Drfl.set_state_led_color(0, 1, 0);

    // Reset to default LED configuration
    Drfl.state_led_reset();

    return 0;
}

This example demonstrates how to use the state LED to indicate different robot operation phases. The LED first turns blue during initialization, then red while in motion, and finally green when the process completes. Such color cues are useful for providing visual feedback about the robot’s operational state in collaborative or human-interactive environments.