Add plugin MultiFilamentScale WiFi

_plugins/filamentscale.md

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+---
+layout: plugin
+
+id: filamentscale
+title: MultiFilamentScale WiFi
+description: Shows the remaining filament on up to five spools, weighed by a separate ESP8266 WiFi scale, in the sidebar
+authors:
+- Jakub Jelínek
+license: AGPL-3.0-or-later
+
+date: 2026-10-25
+
+homepage: https://github.com/jelinj8/plugin-OctoPrint-FilamentScale
+source: https://github.com/jelinj8/plugin-OctoPrint-FilamentScale
+archive: https://github.com/jelinj8/plugin-OctoPrint-FilamentScale/archive/master.zip
+
+tags:
+- filament
+- sidebar
+- monitoring
+- sensor
+- esp8266
+- hx711
+
+screenshots:
+- url: /assets/img/plugins/filamentscale/weights.png
+  alt: Sidebar panel with five spools, their weights and the change since the last save
+  caption: The sidebar shows every spool's weight and, after pressing Save, how much was used since.
+- url: /assets/img/plugins/filamentscale/setup.png
+  alt: Plugin settings with the scale address and a table of sensors
+  caption: Settings - scale address, plus show/hide, rename, tare and set current weight for each sensor.
+
+featuredimage: /assets/img/plugins/filamentscale/weights.png
+
+compatibility:
+  octoprint:
+  - 1.11.0
+
+  os:
+  - linux
+  - windows
+  - macos
+  - freebsd
+
+  python: ">=3.7,<4"
+
+attributes:
+- ai-developed
+---
+
+Shows the weights from a [FilamentScale](https://github.com/jelinj8/firmware-FilamentScale), a WiFi scale for up to five
+filament spools (ESP8266 with HX711 load cells; firmware, schematic, printed parts and build guide are in that repository),
+in a slim sidebar panel.
+
+* **Live weights** of all calibrated spools, pushed to every open browser.
+* **Save / Clear** a snapshot of the weights to see how much filament a print used.
+* **Settings** to show or hide each spool, rename it, tare it or set its current weight. Calibration stays in the
+  scale's own web interface, which the settings page links to.
+
+OctoPrint polls the scale's JSON API on your local network (every 2 s by default); the browser never talks to the scale
+directly, so the panel also works over remote access. The plugin uses no cloud services and sends nothing to the internet.
+The scale serves plain HTTP, as embedded devices on a local network usually do.
+
+## AI Development
+
+The code was written with Claude Code (Anthropic) under my direction: I specified the features, made the design
+decisions and tested every version on my own printer with the real scale. The plugin is therefore marked as
+`ai-developed` for transparency.