> For the complete documentation index, see [llms.txt](https://docs.robpod.cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.robpod.cloud/hmi-designer/working-examples/doosan-robotics/led-control-example-dr.md).

# LED Control Example DR

### HMI Panel File

<figure><img src="/files/9uQ1gfJjo8cBnG5FnjkM" alt=""><figcaption></figcaption></figure>

{% file src="/files/EITCBCzLsR01pJd2H8KD" %}

### Script File

```python
from DRCF import *

color = "green"

def rainbow():
    global color

    for i in range(5):

        # red
        set_state_led_color(1, 0, 0)
        color = "red"
        wait(0.4)

        # yellow
        set_state_led_color(1,1,0)
        color = "yellow"
        wait(0.4)

        # green
        set_state_led_color(0,1,0)
        color = "green"
        wait(0.4)

        # cyan
        set_state_led_color(0,1,1)
        color = "cyan"
        wait(0.4)

        # blue
        set_state_led_color(0,0,1)
        color = "blue"
        wait(0.4)

        # magenta
        set_state_led_color(1,0,1)
        color = "magenta"
        wait(0.4)
```