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It uses an ultrasonic sensor to continuously measure water depth, logs all readings to a local SQLite database, sends email (email to SMS recommended) or Mastodon alerts if the water reaches a critical level, and provides a built-in web interface for monitoring and administration.\n\n![Homepage screenshot](docs/images/homepage%20dark.png)\n\n---\n## Documentation\n\n[Raspi-Sump User and Install Manual](https://raspisumpdocs.linuxnorth.org)\n\n## Features\n\n- Continuous water level monitoring at configurable intervals\n- Email (email to sms recommended) and/or [Mastodon](https://joinmastodon.org/) alerts when water reaches a critical level\n- Heartbeat notifications to confirm the system is running\n- Secure HTTPS web interface (self-signed certificate, nginx + Flask)\n- Interactive charts with dark mode support\n- Historical readings with single-day, multi-day, and custom date range views\n- Admin panel: service control, configuration editor, backup/export, CSV import, support tools\n- Installed as a standard Debian package — no virtual environment required\n- systemd services with automatic startup\n\n---\n\n## Supported Hardware\n\n- Raspberry Pi 2, 3, 4, and 5\n- Ultrasonic sensors: HC-SR04, JSN-SR04T 2.0 (waterproof).  JSN-SR04T 3.0 not recommended.\n\n---\n\n## Supported OS\n\n| OS | Architecture |\n|---|---|\n| Raspberry Pi OS 13 (Trixie) | 32-bit and 64-bit |\n| Raspberry Pi OS 12 (Bookworm) | 32-bit and 64-bit |\n\nRaspi-Sump follows the [Debian release schedule](https://wiki.debian.org/DebianReleases). Older OS versions are not supported.\n\n---\n\n## What's New in Version 2.0\n\nVersion 2.0 is a complete rewrite:\n\n- Installed as a `.deb` package via apt — no virtual environment, no manual dependency management\n- SQLite database replaces per-day CSV files\n- Full HTTPS web interface with dark mode, interactive charts (uPlot), and a mobile-friendly layout\n- Admin panel with service control, config editor, backup/restore, CSV import/export, and support tools\n- Optional persistent admin login with 30-day session cookie\n- Mastodon DM alerts as an alternative or complement to email\n- FHS-compliant paths (`/etc/raspi-sump/`, `/var/log/raspi-sump/`, `/var/lib/raspi-sump/`)\n- systemd services for both the monitor and web interface\n\nSee the [changelog](https://github.com/alaudet/raspi-sump/blob/main/debian/changelog) for full details.\n\n\n---\n\n## Legacy 1.11.1 Version\n\nV1.11.1 is the latest and last version 1 release.  Only bug fixes will be applied going forward.  Support for v1.11.1 will cease with the debian release cycle and drop of support for Debian 11 - Bullseye on **August 31, 2026**\n\nThe github source code is tagged **v1.11.1** at the following url;\n\nhttps://github.com/alaudet/raspi-sump/tree/legacyV1\n\n\n## Community\n\n- **Discord** — discuss and get support from other users. Email [alaudet@linuxnorth.org](mailto:alaudet@linuxnorth.org) for an invite link.\n- **Issue tracker** — [GitHub Issues](https://github.com/alaudet/raspi-sump/issues)\n\n---\n\n## Disclaimer\n\nRaspi-Sump is a passive monitoring tool. It does not control your pump and cannot prevent flooding. There is no warranty. See the license for details.\n\nBest practices:\n\n- Install a backup pump that triggers at a slightly higher water level than your primary pump\n- Connect the backup pump to a separate dedicated electrical breaker\n- Have an alternate power source (generator or battery backup) for extended outages during spring thaw or severe weather\n- If building a new home, consider lot grading that allows gravity drainage — use a pump and Raspi-Sump as a backup layer\n\n---\n\n## License\n\nVersion 2.0 is released under the [Apache 2.0 License](https://github.com/alaudet/raspi-sump/blob/main/LICENSE).\n\n\n\n---\n\n## Contributing\n\nPlease read the [Contributing Guidelines](https://github.com/alaudet/raspi-sump/blob/main/CONTRIBUTING.md) before submitting a pull request.\n\n---\n\n## Donate\n\n[Your support is appreciated](https://www.paypal.com/donate/?hosted_button_id=7DLCUXLC5TQSA)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falaudet%2Fraspi-sump","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Falaudet%2Fraspi-sump","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falaudet%2Fraspi-sump/lists"}