> For the complete documentation index, see [llms.txt](https://teravolt.gitbook.io/teravolt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teravolt.gitbook.io/teravolt/peripherals/usb-to-ttl-converter/usage-tips.md).

# Usage Tips

* Always select the appropriate voltage (3.3V or 5V) before connecting to a target device
* Connect only one voltage domain at a time to avoid damage
* Use the activity LEDs to debug live communication issues

##  License

Open Source Hardware — Non-Commercial License (Based on CERN-OHL-S v2)

> You are **free to use, modify, reproduce, and distribute** this hardware for **non-commercial purposes** only, provided that you give appropriate credit and include a copy of this license.

## License Summary

| Permission       | Allowed        |
| ---------------- | -------------- |
| ✅ Private use    | ✔ Yes          |
| ✅ Modification   | ✔ Yes          |
| ✅ Redistribution | ✔ Yes          |
| ❌ Commercial use | ✘ Not Allowed  |
| ✅ Attribution    | ✔ Required     |
| ✅ License copy   | ✔ Must include |

This license is based on CERN Open Hardware License v2 – Strongly Reciprocal, but modified to prohibit commercial use. Any use of this hardware in a product or service for sale, resale, or monetization is strictly prohibited.

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