developers.home-assistant/docs/creating_component_index.md

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---
title: "Creating components"
sidebar_label: "Introduction"
---
Alright, you're ready to make your first component. AWESOME. Don't worry, we've tried hard to keep it as easy as possible.
### Example component
Add `hello_state:` to your `configuration.yaml` file and create a file `<config_dir>/custom_components/hello_state.py` with the below code to test it locally.
```python
DOMAIN = 'hello_state'
def setup(hass, config):
hass.states.set('hello.world', 'Paulus')
return True
```