# Sonar Grid

> Interactive dot-grid background for hero and footer sections: sonar rings expand where you tap, ambient pings keep it alive, and one ring is already mid-flight at first paint. Canvas, zero deps, theme primary color, still under reduced motion.

- Author: [NIMA MZ](https://21st.dev/@n1m4mz)
- License: mit
- Tags: Background, Hero, Interactive, Canvas, Animation
- Live preview: https://21st.dev/@n1m4mz/components/sonar-grid

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/n1m4mz/sonar-grid?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/background.md