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Runs fully client-side via the [Web Serial API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Serial_API) and [modbus-webserial](https://www.npmjs.com/package/modbus-webserial). No install required to use the app; optional CLI for quick start. \\\nBuilt with [Svelte](https://svelte.dev) and [shadcn](https://www.shadcn-svelte.com/). \n\n---\n\n## Quick start\n\n### Directly from Github Pages\n### --\u003e [modbus-webUI](https://anttikotajarvi.github.io/modbus-webui/) \u003c--\n### or with npx\n\n```bash\n# serve the packaged HTML immediately\nnpx modbus-webui start\n\n# or write the HTML to your cwd, then serve it\nnpx modbus-webui init\nnpx modbus-webui serve\n# options:\n#   --port=5173\n#   init [filename] [--force]\n#   serve [filename] [--port=...]\n```\n\nYou can also download the single `modbus-webui.html` file and open it directly in a supported browser.\n\n---\n\n## Features\n\n* **Read / write** coils and registers\n* **Profiles**: per-device settings + saved write shortcuts\n* **Name tables**: global sets covering coils, discrete inputs, holding and input registers\n* **Shortcuts**: one-click saved writes\n* **Local persistence**: everything stored in your browser\n\n---\n\n## Basic usage\n\n1. Click **Connect** and choose your serial port.\n2. Set port parameters (baud, parity, etc.) and click **Open**.\n3. Use **Read** / **Write** panels to operate coils and registers.\n4. Save frequent actions as **Shortcuts** and run them from the Shortcuts panel.\n5. Use **Name Tables** to label addresses; **Profiles** keep device-specific setup.\n\n---\n\n## Concepts\n\n### Profiles\n\n* Hold your selected name-table set, connection settings, and write shortcuts.\n* Changes apply immediately to the active profile. Switching profiles does **not** disconnect the port.\n\n### Name tables\n\n* Stored **globally**; any profile can select a set to use.\n* Cover all four areas: coils, discrete inputs, holding registers, input registers.\n* Names are linked to addresses (enter as decimal or hex). Edit via the Name Tables modal or copy/paste a full set as JSON.\n\n### Storage \u0026 versioning\n\n* All data is kept as a single **library** and saved to `localStorage` (auto or manual save).\n* The stored data is versioned to allow future migrations.\n\n---\n\n## Browser support\n\n* Requires **Chromium-based desktop** browsers with Web Serial enabled.\n* You grant port access per session; after reload you may need to select the port again.\n* The app will show a notice if Web Serial isn’t available.\n\n---\n\n## Development\n\n```bash\n# install\nnpm i\n\n# dev\nnpm run dev\n\n# build (emits dist/modbus-webui.html)\nnpm run build\n```\n\n---\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/anttikotajarvi.github.io%2Fmodbus-webui%2F","html_url":"https://awesome.ecosyste.ms/projects/anttikotajarvi.github.io%2Fmodbus-webui%2F","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/anttikotajarvi.github.io%2Fmodbus-webui%2F/lists"}