> 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/universal-robots/production-mix-example.md).

# Production Mix Example

**HMI Panel File**

<figure><img src="/files/60c9SWit2Nxzvnfm1MOf" alt=""><figcaption></figcaption></figure>

{% file src="/files/wFWgxnvxLwXTAkmErJUt" %}
HMI panel file
{% endfile %}

**Robot Program File**

```python
# variables can also be defined as installation variables to keep in memory their last value
square_count = 0
triangle_count = 0
circle_count = 0
square_target = 0
triangle_target = 0
circle_target = 0

# production task for every different format
def square_task():
    square_count = square_count + 1
    sleep(1)
end

def triangle_task():
    triangle_count = triangle_count + 1
    sleep(1)
end

def circle_task():
    circle_count = circle_count + 1
    sleep(1)
end

# main production task
def start_task():
    while square_count < square_target or triangle_count < triangle_target or circle_count < circle_target:
    	if square_count < square_target:
            square_task()
	    end

	    if triangle_count < triangle_target:
            triangle_task()
	    end

	    if circle_count < circle_target:
            circle_task()
	    end
    end
end

# restore variables to initial values
def reset_task():
    square_count = 0
    triangle_count = 0
    circle_count = 0
    square_target = 0
    triangle_target = 0
    circle_target = 0
end
  
```

{% file src="/files/4Y1SF3sO1ppUmnjnpBnY" %}
Script to perform production mix tasks
{% endfile %}

{% file src="/files/JGfQnZHzoVHVsDmRLHRB" %}
Robot program
{% endfile %}