diff --git a/flows.json b/flows.json
index 190dee4..e84ed0b 100644
--- a/flows.json
+++ b/flows.json
@@ -1109,8 +1109,8 @@
             "f67a857ae75d906f",
             "a8dc4fab59fdefb4"
         ],
-        "x": 48,
-        "y": 4733,
+        "x": 68,
+        "y": 5153,
         "w": 1094,
         "h": 134,
         "info": "this is a fake device for kernel boot (ensure that one device is registered)"
@@ -1131,8 +1131,8 @@
             "1b98c37b3b7502e4",
             "f02b4584af0d800c"
         ],
-        "x": 654,
-        "y": 4759,
+        "x": 674,
+        "y": 5179,
         "w": 462,
         "h": 82
     },
@@ -1152,11 +1152,246 @@
             "eed8990163b1ca81",
             "7f76434616f622dc"
         ],
-        "x": 74,
-        "y": 4759,
+        "x": 94,
+        "y": 5179,
         "w": 542,
         "h": 82
     },
+    {
+        "id": "3a98a00afc60d7cd",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "name": "auto - device",
+        "style": {
+            "fill": "#777777",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "63149b5b57a97c5b",
+            "3110fe9246e63b1e",
+            "5a56612ef35c5fd3"
+        ],
+        "x": 42,
+        "y": 4707,
+        "w": 6886,
+        "h": 366
+    },
+    {
+        "id": "63149b5b57a97c5b",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "3a98a00afc60d7cd",
+        "name": "",
+        "style": {
+            "fill": "#ffffff",
+            "label": true,
+            "stroke": "#ffC000",
+            "fill-opacity": "0.5"
+        },
+        "nodes": [
+            "bd21a8b1786d3ed2",
+            "4937527cddd45b61"
+        ],
+        "x": 68,
+        "y": 4733,
+        "w": 1664,
+        "h": 314
+    },
+    {
+        "id": "3110fe9246e63b1e",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "3a98a00afc60d7cd",
+        "name": "",
+        "style": {
+            "fill": "#ffffff",
+            "label": true,
+            "stroke": "#0070c0",
+            "fill-opacity": "0.5"
+        },
+        "nodes": [
+            "3be00f677c6457bd",
+            "266f4436dc45ce89"
+        ],
+        "x": 1768,
+        "y": 4793,
+        "w": 3294,
+        "h": 254
+    },
+    {
+        "id": "5a56612ef35c5fd3",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "3a98a00afc60d7cd",
+        "name": "",
+        "style": {
+            "fill": "#ffffff",
+            "label": true,
+            "stroke": "#92d04f",
+            "fill-opacity": "0.5"
+        },
+        "nodes": [
+            "874075d44d19869a",
+            "d9548e9b1a2e6f36"
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+        "x": 5108,
+        "y": 4793,
+        "w": 1794,
+        "h": 254
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+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "63149b5b57a97c5b",
+        "name": "auto - device - in",
+        "style": {
+            "fill": "#ffC000",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "d85fe6335a6eae7b",
+            "c3d88e1872a9789b",
+            "7f1a03ba2d4eb5d1",
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+        "x": 94,
+        "y": 4819,
+        "w": 612,
+        "h": 142
+    },
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+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "63149b5b57a97c5b",
+        "name": "auto - device - out",
+        "style": {
+            "fill": "#ffC000",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "3e1b4213132404be",
+            "80459ca7317cce90",
+            "e6d11d0438e20b80",
+            "0ff47b07b863d0ae",
+            "561aaceffe076a5d",
+            "8f4503a19f2f639e",
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+        "x": 734,
+        "y": 4759,
+        "w": 972,
+        "h": 262
+    },
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+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "3110fe9246e63b1e",
+        "name": "auto - source - in",
+        "style": {
+            "label": true,
+            "fill": "#0070c0",
+            "fill-opacity": "0.05"
+        },
+        "nodes": [
+            "ba77500cd9f7f6da",
+            "30220f4fe07e35a4",
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+            "24058eec92534b27",
+            "5460a158225a328b",
+            "d34f38f155583ff7",
+            "aa275d99ba85bee2",
+            "5891781e4a61525a",
+            "4908c2284e498338",
+            "411b13dfb3e989f0"
+        ],
+        "x": 1794,
+        "y": 4819,
+        "w": 1502,
+        "h": 202
+    },
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+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "3110fe9246e63b1e",
+        "name": "auto - source - out",
+        "style": {
+            "fill": "#0070c0",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "14a0a0839924964f",
+            "06581753b7673f83",
+            "5e3cb9bb3266089b",
+            "0b32686fe74c253f",
+            "51b002c497ad57cd",
+            "83e8a9fa324dd4b9",
+            "bb1e8e34559c5a7f",
+            "6140ca98749acd85",
+            "70ae9d85820c14fb"
+        ],
+        "x": 3394,
+        "y": 4819,
+        "w": 1642,
+        "h": 202
+    },
+    {
+        "id": "874075d44d19869a",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "5a56612ef35c5fd3",
+        "name": "auto - metric - in",
+        "style": {
+            "fill": "#92d04f",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "7d45ca7ad7f363fe",
+            "a4e3db9cc35fc9eb",
+            "a2d25db2ace537ae",
+            "282bb73eb4892ab9",
+            "637b84024e725f38",
+            "f61f5fe80ddf6ff1"
+        ],
+        "x": 5134,
+        "y": 4819,
+        "w": 882,
+        "h": 82
+    },
+    {
+        "id": "d9548e9b1a2e6f36",
+        "type": "group",
+        "z": "ab51b1e8cad7b700",
+        "g": "5a56612ef35c5fd3",
+        "name": "auto - metric - out",
+        "style": {
+            "fill": "#92d04f",
+            "fill-opacity": "0.05",
+            "label": true
+        },
+        "nodes": [
+            "e93e8daa30075ae6",
+            "89d2eebcaafb5013",
+            "9c89a41128573752",
+            "b2ccb6a2a248015d",
+            "d318afa2a81e4ff9",
+            "9262e99e20e0e654",
+            "69041daa92bc0a8b"
+        ],
+        "x": 6114,
+        "y": 4819,
+        "w": 762,
+        "h": 202
+    },
     {
         "id": "22dd0707e6d3a364",
         "type": "Stackhero-InfluxDB-v2-Server",
@@ -1980,7 +2215,8 @@
         "g": "bbf7bb18989048e1",
         "name": "kernel - device",
         "links": [
-            "7f76434616f622dc"
+            "7f76434616f622dc",
+            "80459ca7317cce90"
         ],
         "x": 135,
         "y": 780,
@@ -2883,7 +3119,8 @@
         "links": [
             "8fdb5986494986cc",
             "e12bb3f8258f4439",
-            "f02b4584af0d800c"
+            "f02b4584af0d800c",
+            "06581753b7673f83"
         ],
         "x": 135,
         "y": 1260,
@@ -2900,7 +3137,9 @@
         "g": "20b116b788ef3f27",
         "name": "kernel - metric - loop",
         "mode": "link",
-        "links": [],
+        "links": [
+            "7d45ca7ad7f363fe"
+        ],
         "x": 5195,
         "y": 1260,
         "wires": []
@@ -5910,8 +6149,8 @@
         "links": [
             "94c79b8f52f0b6ba"
         ],
-        "x": 695,
-        "y": 4800,
+        "x": 715,
+        "y": 5220,
         "wires": [
             [
                 "1b98c37b3b7502e4"
@@ -5964,8 +6203,8 @@
         "from": "",
         "to": "",
         "reg": false,
-        "x": 890,
-        "y": 4800,
+        "x": 910,
+        "y": 5220,
         "wires": [
             [
                 "f02b4584af0d800c"
@@ -5982,8 +6221,8 @@
         "links": [
             "206c1fb4a48067df"
         ],
-        "x": 1075,
-        "y": 4800,
+        "x": 1095,
+        "y": 5220,
         "wires": []
     },
     {
@@ -6034,8 +6273,8 @@
         "from": "",
         "to": "",
         "reg": false,
-        "x": 350,
-        "y": 4800,
+        "x": 370,
+        "y": 5220,
         "wires": [
             [
                 "7f76434616f622dc"
@@ -6051,8 +6290,8 @@
         "links": [
             "25445f5a9b787a0a"
         ],
-        "x": 115,
-        "y": 4800,
+        "x": 135,
+        "y": 5220,
         "wires": [
             [
                 "840c05ce502e7fdd"
@@ -6069,8 +6308,8 @@
         "links": [
             "bfa594bf1f876c92"
         ],
-        "x": 575,
-        "y": 4800,
+        "x": 595,
+        "y": 5220,
         "wires": []
     },
     {
@@ -6101,13 +6340,1269 @@
         "z": "ab51b1e8cad7b700",
         "name": "",
         "incFlows": "Kernel,K.Routine",
-        "incSubflows": "",
+        "incSubflows": "*",
         "srcFolder": "src",
         "chkAutoFlow2Src": true,
         "x": 1220,
         "y": 60,
         "wires": []
     },
+    {
+        "id": "d85fe6335a6eae7b",
+        "type": "link in",
+        "z": "ab51b1e8cad7b700",
+        "g": "bd21a8b1786d3ed2",
+        "name": "auto - device - in",
+        "links": [],
+        "x": 135,
+        "y": 4920,
+        "wires": [
+            [
+                "c3d88e1872a9789b"
+            ]
+        ]
+    },
+    {
+        "id": "c3d88e1872a9789b",
+        "type": "function",
+        "z": "ab51b1e8cad7b700",
+        "g": "bd21a8b1786d3ed2",
+        "name": "check device",
+        "func": "// output 1 : error message\n// output 2 : device registration\n\n// script var\nvar msg = msg;\nvar newmsg = {};\n\nif (typeof msg === 'undefined'){\n    return [null,null];\n}\n\n// check var existence\nif (typeof msg.bucket === 'undefined' ||\n    typeof msg.model === 'undefined' ||\n    typeof msg.id === 'undefined'\n) {\n    node.status({\n        fill: \"red\", shape: \"ring\", text: 'undefined device'});\n    return [msg,null];\n}\n\n// recreate msg\nnewmsg = {\n    'bucket': msg.bucket,\n    'measurement': typeof msg.measurement === 'undefined' ? '' : msg.measurement,\n    'field': typeof msg.field === 'undefined' ? '' : msg.field,\n    'model': msg.model,\n    'option': typeof msg.option === 'undefined' ? 0 : msg.option,\n    'id': msg.id,\n    'payload':''\n};\n\nnode.status({ fill: 'green', shape: \"ring\", text:  newmsg.model + ' / ' + newmsg.id });\nreturn [null,newmsg];",
+        "outputs": 2,
+        "timeout": "",
+        "noerr": 0,
+        "initialize": "\n",
+        "finalize": "\n",
+        "libs": [],
+        "x": 290,
+        "y": 4920,
+        "wires": [
+            [
+                "7f1a03ba2d4eb5d1"
+            ],
+            [
+                "546f190f3ec0c90d"
+            ]
+        ]
+    },
+    {
+        "id": "7f1a03ba2d4eb5d1",
+        "type": "debug",
+        "z": "ab51b1e8cad7b700",
+        "g": "bd21a8b1786d3ed2",
+        "name": "auto - device - uncomplete",
+        "active": true,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": false,
+        "complete": "true",
+        "targetType": "full",
+        "statusVal": "",
+        "statusType": "auto",
+        "x": 540,
+        "y": 4860,
+        "wires": []
+    },
+    {
+        "id": "546f190f3ec0c90d",
+        "type": "link out",
+        "z": "ab51b1e8cad7b700",
+        "g": "bd21a8b1786d3ed2",
+        "name": "auto - device - in",
+        "mode": "link",
+        "links": [],
+        "x": 435,
+        "y": 4920,
+        "wires": []
+    },
+    {
+        "id": "3e1b4213132404be",
+        "type": "link in",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "auto - device - out",
+        "links": [],
+        "x": 775,
+        "y": 4980,
+        "wires": [
+            [
+                "0ff47b07b863d0ae"
+            ]
+        ]
+    },
+    {
+        "id": "80459ca7317cce90",
+        "type": "link out",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "auto - device - out",
+        "mode": "link",
+        "links": [
+            "bfa594bf1f876c92"
+        ],
+        "x": 1315,
+        "y": 4980,
+        "wires": []
+    },
+    {
+        "id": "e6d11d0438e20b80",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "register by protocols",
+        "rules": [
+            {
+                "t": "set",
+                "p": "protocols[msg.protocol][msg.id]",
+                "pt": "global",
+                "to": "{\t    'bucket':msg.bucket,\t    'measurement':msg.measurement,\t    'field':msg.field,\t    'brand':msg.brand,\t    'model':msg.model,\t    'option':msg.option\t}",
+                "tot": "jsonata"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 1580,
+        "y": 4860,
+        "wires": [
+            []
+        ]
+    },
+    {
+        "id": "0ff47b07b863d0ae",
+        "type": "switch",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "brand exists",
+        "property": "brand",
+        "propertyType": "msg",
+        "rules": [
+            {
+                "t": "istype",
+                "v": "string",
+                "vt": "string"
+            },
+            {
+                "t": "else"
+            }
+        ],
+        "checkall": "false",
+        "repair": false,
+        "outputs": 2,
+        "x": 930,
+        "y": 4980,
+        "wires": [
+            [
+                "561aaceffe076a5d",
+                "8f4503a19f2f639e"
+            ],
+            [
+                "80459ca7317cce90"
+            ]
+        ]
+    },
+    {
+        "id": "561aaceffe076a5d",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "seen / xxx / number",
+        "rules": [
+            {
+                "t": "set",
+                "p": "measurement",
+                "pt": "msg",
+                "to": "seen",
+                "tot": "str"
+            },
+            {
+                "t": "set",
+                "p": "format",
+                "pt": "msg",
+                "to": "number",
+                "tot": "str"
+            },
+            {
+                "t": "set",
+                "p": "default",
+                "pt": "msg",
+                "to": "",
+                "tot": "date"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 1150,
+        "y": 4920,
+        "wires": [
+            [
+                "80459ca7317cce90"
+            ]
+        ]
+    },
+    {
+        "id": "8f4503a19f2f639e",
+        "type": "switch",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "subid exists",
+        "property": "subid",
+        "propertyType": "msg",
+        "rules": [
+            {
+                "t": "istype",
+                "v": "string",
+                "vt": "string"
+            },
+            {
+                "t": "else"
+            }
+        ],
+        "checkall": "false",
+        "repair": false,
+        "outputs": 2,
+        "x": 1130,
+        "y": 4860,
+        "wires": [
+            [
+                "b08802b0dbd9a58b"
+            ],
+            [
+                "e6d11d0438e20b80"
+            ]
+        ]
+    },
+    {
+        "id": "b08802b0dbd9a58b",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "4937527cddd45b61",
+        "name": "add subid to id",
+        "rules": [
+            {
+                "t": "set",
+                "p": "id",
+                "pt": "msg",
+                "to": "msg.id&'.'&msg.subid",
+                "tot": "jsonata"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 1340,
+        "y": 4800,
+        "wires": [
+            [
+                "e6d11d0438e20b80"
+            ]
+        ]
+    },
+    {
+        "id": "ba77500cd9f7f6da",
+        "type": "link in",
+        "z": "ab51b1e8cad7b700",
+        "g": "3be00f677c6457bd",
+        "name": "auto - source - in",
+        "links": [
+            "a3594a90f69fe537",
+            "ebdbee7baef678a6",
+            "ed6bcbd32e72afe1"
+        ],
+        "x": 1835,
+        "y": 4920,
+        "wires": [
+            [
+                "30220f4fe07e35a4"
+            ]
+        ]
+    },
+    {
+        "id": "30220f4fe07e35a4",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "3be00f677c6457bd",
+        "name": "split topic",
+        "rules": [
+            {
+                "t": "set",
+                "p": "input",
+                "pt": "msg",
+                "to": "$split(msg.topic,'/')",
+                "tot": "jsonata"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 1980,
+        "y": 4920,
+        "wires": [
+            [
+                "ac4653be6ea01477"
+            ]
+        ]
+    },
+    {
+        "id": "ac4653be6ea01477",
+        "type": "switch",
+        "z": "ab51b1e8cad7b700",
+        "g": "3be00f677c6457bd",
+        "name": "select protocol",
+        "property": "input[0]",
+        "propertyType": "msg",
+        "rules": [
+            {
+                "t": "eq",
+                "v": "zwave",
+                "vt": "str"
+            },
+            {
+                "t": "eq",
+                "v": "zigbee",
+                "vt": "str"
+            },
+            {
+                "t": "eq",
+                "v": "rfxcom2mqtt",
+                "vt": "str"
+            }
+        ],
+        "checkall": "false",
+        "repair": false,
+        "outputs": 3,
+        "x": 2180,
+        "y": 4920,
+        "wires": [
+            [
+                "1ceced58d0c32e85"
+            ],
+            [
+                "5460a158225a328b"
+            ],
+            [
+                "aa275d99ba85bee2"
+            ]
+        ]
+    },
+    {
+        "id": "1ceced58d0c32e85",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "3be00f677c6457bd",
+        "name": "extract protocol values",
+        "rules": [
+            {
+                "t": "set",
+                "p": "protocol",
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+        "g": "d9548e9b1a2e6f36",
+        "name": "set prefix",
+        "rules": [
+            {
+                "t": "set",
+                "p": "prefix",
+                "pt": "msg",
+                "to": "'zigbee/'&msg.id",
+                "tot": "jsonata"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 6520,
+        "y": 4920,
+        "wires": [
+            [
+                "b2ccb6a2a248015d"
+            ]
+        ]
+    },
+    {
+        "id": "69041daa92bc0a8b",
+        "type": "change",
+        "z": "ab51b1e8cad7b700",
+        "g": "d9548e9b1a2e6f36",
+        "name": "set prefix",
+        "rules": [
+            {
+                "t": "set",
+                "p": "prefix",
+                "pt": "msg",
+                "to": "'rfxcom2mqtt/devices/'&msg.id",
+                "tot": "jsonata"
+            }
+        ],
+        "action": "",
+        "property": "",
+        "from": "",
+        "to": "",
+        "reg": false,
+        "x": 6520,
+        "y": 4980,
+        "wires": [
+            [
+                "b2ccb6a2a248015d"
+            ]
+        ]
+    },
     {
         "id": "2623529da72f4fab",
         "type": "catch",
diff --git a/src/Kernel/check_device2.js b/src/Kernel/check_device2.js
new file mode 100644
index 0000000..f82dfee
--- /dev/null
+++ b/src/Kernel/check_device2.js
@@ -0,0 +1,34 @@
+// output 1 : error message
+// output 2 : device registration
+
+// script var
+var msg = msg;
+var newmsg = {};
+
+if (typeof msg === 'undefined'){
+    return [null,null];
+}
+
+// check var existence
+if (typeof msg.bucket === 'undefined' ||
+    typeof msg.model === 'undefined' ||
+    typeof msg.id === 'undefined'
+) {
+    node.status({
+        fill: "red", shape: "ring", text: 'undefined device'});
+    return [msg,null];
+}
+
+// recreate msg
+newmsg = {
+    'bucket': msg.bucket,
+    'measurement': typeof msg.measurement === 'undefined' ? '' : msg.measurement,
+    'field': typeof msg.field === 'undefined' ? '' : msg.field,
+    'model': msg.model,
+    'option': typeof msg.option === 'undefined' ? 0 : msg.option,
+    'id': msg.id,
+    'payload':''
+};
+
+node.status({ fill: 'green', shape: "ring", text:  newmsg.model + ' / ' + newmsg.id });
+return [null,newmsg];
\ No newline at end of file
diff --git a/src/Kernel/check_device2_finalizejs b/src/Kernel/check_device2_finalizejs
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/Kernel/check_device2_finalizejs
@@ -0,0 +1 @@
+
diff --git a/src/Kernel/check_device2_initializejs b/src/Kernel/check_device2_initializejs
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/Kernel/check_device2_initializejs
@@ -0,0 +1 @@
+
diff --git a/src/manifest.json b/src/manifest.json
index fb5fabd..d9c8d08 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -49,6 +49,21 @@
         "property": "finalize",
         "file": "Kernel/set_gate_message2_finalizejs"
     },
+    {
+        "id": "c3d88e1872a9789b",
+        "property": "func",
+        "file": "Kernel/check_device2.js"
+    },
+    {
+        "id": "c3d88e1872a9789b",
+        "property": "initialize",
+        "file": "Kernel/check_device2_initializejs"
+    },
+    {
+        "id": "c3d88e1872a9789b",
+        "property": "finalize",
+        "file": "Kernel/check_device2_finalizejs"
+    },
     {
         "id": "0385dd3208b83d41",
         "property": "func",