Monatsrückblick Januar/Februar 2026 ist online!

[abuzze]

Falls es jemand mal braucht.

einfach kopieren und einfügen aber vorher noch node-red-contrib-usbhid installieren.

Quelle: https://medium.com/coinmonks/iot-tutori … 54836be127

[
    {
        "id": "592e7da0.0b2a44",
        "type": "function",
        "z": "c59dac6a.8f18d",
        "name": "select id part",
        "func": "msg.payload = msg.payload[2]\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 310,
        "y": 700,
        "wires": [
            [
                "f4f6990f.bdbc98"
            ]
        ]
    },
    {
        "id": "f4f6990f.bdbc98",
        "type": "switch",
        "z": "c59dac6a.8f18d",
        "name": "filter digits",
        "property": "payload",
        "propertyType": "msg",
        "rules": [
            {
                "t": "btwn",
                "v": "31",
                "vt": "num",
                "v2": "39",
                "v2t": "num"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 1,
        "x": 490,
        "y": 700,
        "wires": [
            [
                "2def329b.1aa87e"
            ]
        ]
    },
    {
        "id": "2def329b.1aa87e",
        "type": "function",
        "z": "c59dac6a.8f18d",
        "name": "translate bits",
        "func": "keymap = [\n    '', '', '', '',\n    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',\n    'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',\n    '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '\\n', '^]', '^H',\n    '^I', ' ', '-', '=', '[', ']', '\\\\', '>', ';', \"'\", '`', ',', '.',\n    '/', 'CapsLock', 'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10', 'F11', 'F12',\n    'PS', 'SL', 'Pause', 'Ins', 'Home', 'PU', '^D', 'End', 'PD', '->', '<-', '-v', '-^', 'NL',\n    'KP/', 'KP*', 'KP-', 'KP+', 'KPE', 'KP1', 'KP2', 'KP3', 'KP4', 'KP5', 'KP6', 'KP7', 'KP8',\n    'KP9', 'KP0', '\\\\', 'App', 'Pow', 'KP=', 'F13', 'F14'\n]\nvar replacechars = function(c){\n    return keymap[c]|| c; \n}; \nmsg.payload = replacechars(msg.payload)\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 430,
        "y": 820,
        "wires": [
            [
                "78b813a2.d15a5c"
            ]
        ]
    },
    {
        "id": "78b813a2.d15a5c",
        "type": "join",
        "z": "c59dac6a.8f18d",
        "name": "join id bytes",
        "mode": "custom",
        "build": "string",
        "property": "payload",
        "propertyType": "msg",
        "key": "topic",
        "joiner": "",
        "joinerType": "str",
        "accumulate": false,
        "timeout": "0.2",
        "count": "",
        "reduceRight": false,
        "reduceExp": "",
        "reduceInit": "",
        "reduceInitType": "num",
        "reduceFixup": "",
        "x": 650,
        "y": 820,
        "wires": [
            [
                "f522bc50.2f817"
            ]
        ]
    },
    {
        "id": "f522bc50.2f817",
        "type": "debug",
        "z": "c59dac6a.8f18d",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 870,
        "y": 820,
        "wires": []
    },
    {
        "id": "16289df5.43ba12",
        "type": "HIDdevice",
        "z": "c59dac6a.8f18d",
        "connection": "6b3a553f.f84efc",
        "name": "",
        "x": 190,
        "y": 640,
        "wires": [
            [
                "592e7da0.0b2a44"
            ],
            []
        ]
    },
    {
        "id": "6b3a553f.f84efc",
        "type": "HIDConfig",
        "z": "",
        "vid": "5050",
        "pid": "24",
        "name": "RFID"
    }
]

[ple]

Es ist zwar schon eine Weile her, aber ich bin auf der Suche nach einer einfachen Möglichkeit einen usb geräte, welches als HID erkannt wird, am Raspberry auszulesen.
Speziell geht es um einen USB RFID Scanner.
Leider bekomme ich nicht mal das "node-red-contrib-usbhid " installiert.

Gibt es da vielleicht workaround zu oder vielleicht was einfacheres, um an den String vom Reader zu kommen?

Gruß und Danke