core/homeassistant/components/firmata/translations/el.json

{
    "config": {
        "abort": {
            "cannot_connect": "\u0391\u03c0\u03bf\u03c4\u03c5\u03c7\u03af\u03b1 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7\u03c2"
        }
    }
}