# sumotoyy/SX1509_IO-Expander

> Arduino library for SX1509 16-i/o Expander. Also, hardware design files for SFE's SX1509 breakout board.

- **Canonical URL**: https://githubrepo.cloud/repo/sumotoyy/SX1509_IO-Expander
- **GitHub Repository**: https://github.com/sumotoyy/SX1509_IO-Expander
- **Maintainer / Creator**: https://github.com/sumotoyy
- **Discovered On**: Sep 28, 2026

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