MMM-WifiLink

A MagicMirror² module that shows a clean, iOS-style Wi-Fi signal indicator: five bars that light up and change colour with the real link quality (green → amber → red). The signal is read directly from iw (actual dBm), and the display updates in place so it never flickers.

Features

• Five signal bars, coloured by quality (excellent/good → fair → weak)
• Real signal strength (dBm) from iw dev <iface> link
• Optional quality label under the bars (localised; English & German included)
• In-place DOM updates — no black flicker on refresh
• Two sizes (normal / small) and self-contained styling

Requirements

• Linux with a wireless interface
• The iw tool (sudo apt install iw)
• Read access to /proc/net/dev (default)

Installation

cd ~/MagicMirror/modules
git clone https://github.com/ago1776/MMM-WifiLink

Then add the module to config/config.js:

{
  module: "MMM-WifiLink",
  position: "top_right",
  header: "Wi-Fi",           // optional
  config: {
    iface: "wlan0"
  }
}

Configuration options

Option	Type	Default	Description
iface	string	"wlan0"	Wireless interface to read.
updateInterval	number	5000	Poll interval in ms.
showLabel	boolean	true	Show the quality word under the bars.
barSize	string	"normal"	Bar size: "normal" or "small".

Translations

Quality words live in translations/en.json and translations/de.json. Add a language by copying en.json to <lang>.json and translating the values. Language follows MagicMirror's global language setting.

License

MIT © Andreas Göpfert