{ "name": "My workflow", "nodes": [ { "parameters": { "jsCode": "// -------- Parameter --------\nconst POLL_SEC = 5; // Trigger-Intervall (=Trigger-Knoten).\nconst START_W = 10; // Start ab 10W\nconst START_SEC = 30; // wenn mind 30 Sekunden > START_W = \"Running\"\nconst FINISH_W = 5; // Ende unter 5W\nconst FINISH_SEC = 60; // wenn mind 60 Sekunden > FINISH_W = \"Idle\" (Finished)\n// --------------------------------------------------\n\nconst START_TICKS = Math.ceil(START_SEC / POLL_SEC);\nconst FINISH_TICKS = Math.ceil(FINISH_SEC / POLL_SEC);\n\n// --- apower vom HTTP-Node (kommt über Merge, steht bei dir auf Root) ---\nconst apower = (typeof $json.apower === 'number') ? $json.apower : Number($json.apower);\n\n// --- Sheet-Row SICHER holen: erstes Item des Sheets-Nodes ---\n// ACHTUNG: Node-Name exakt so, wie dein Lesen-Node heißt!\nconst SHEET_NODE = \"Daten Lesen - Status Waschmaschine (DB)\";\n\n// Hol alle Items vom Sheets-Node aus diesem Run:\nconst sheetItems = $items(SHEET_NODE);\nconst haveSheet = Array.isArray(sheetItems) && sheetItems.length > 0;\n\n// Falls nichts gefunden: Dummy-Zeile (damit der Code nicht crasht)\nconst s = haveSheet ? (sheetItems[0].json || {}) : {};\n\n// Status aus Sheet robust lesen\nlet state = (typeof s.state === 'string' && s.state) ? s.state : 'idle';\nlet highcnt = Number.isFinite(+s.highcnt) ? +s.highcnt : 0;\nlet lowcnt = Number.isFinite(+s.lowcnt) ? +s.lowcnt : 0;\nlet laststartts = (s.laststartts && String(s.laststartts).length) ? String(s.laststartts) : null;\n\n// --- Zähler pflegen ---\nhighcnt = (apower > START_W) ? (highcnt + 1) : 0;\nlowcnt = (apower < FINISH_W) ? (lowcnt + 1) : 0;\n\n// --- IDLE -> RUNNING ---\nif (state === 'idle' && highcnt >= START_TICKS) {\n state = 'running';\n lowcnt = 0;\n // Verwende die lokale Zeitzone Europe/Berlin für den Zeitstempel\n const localDate = new Date().toLocaleString('sv-SE', { timeZone: 'Europe/Berlin' });\n laststartts = localDate.replace(' ', 'T') + 'Z';\n}\n\n// --- RUNNING -> IDLE (fertig) ---\nlet finishedNow = false;\nlet finishedAt = null;\n\nif (state === 'running' && lowcnt >= FINISH_TICKS) {\n state = 'idle';\n highcnt = 0;\n finishedNow = true;\n // Verwende die lokale Zeitzone Europe/Berlin für den Zeitstempel\n const localDate = new Date().toLocaleString('sv-SE', { timeZone: 'Europe/Berlin' });\n finishedAt = localDate.replace(' ', 'T') + 'Z';\n}\n\n// --- Neues State-Objekt für Sheets-Write ---\nconst stateData = {\n key: 'washer',\n state,\n highcnt,\n lowcnt,\n laststartts: laststartts || '',\n // Verwende die lokale Zeitzone Europe/Berlin für den Zeitstempel\n updatedat: new Date().toLocaleString('sv-SE', { timeZone: 'Europe/Berlin' }).replace(' ', 'T') + 'Z',\n};\n\n// --- Debug-Ausgabe, damit man sofort sieht, wo’s hakt ---\nconst debug = {\n gotSheetRow: haveSheet, // <- sollte true sein!\n sheetRowRaw: s, // was genau aus Sheets kam\n apowerSeen: apower, // gemessene Leistung\n ticks: { start: START_TICKS, finish: FINISH_TICKS },\n thresholds: { START_W, FINISH_W }\n};\n\n// IMMER 1 Item ausgeben; IF filtert auf finished===true\nreturn [{\n json: {\n // für IF + E-Mail:\n finished: finishedNow,\n apower,\n startedAt: laststartts || null,\n finishedAt,\n\n // zum Sheets-Write:\n stateData,\n\n // Debug:\n debug\n }\n}];\n" }, "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 544, 320 ], "id": "708c9e84-7db5-4196-a168-8283266b72cf", "name": "Code" }, { "parameters": {}, "type": "n8n-nodes-base.merge", "typeVersion": 3.2, "position": [ 320, 320 ], "id": "6a3c8885-46ab-467a-a0bd-1a5a811a8862", "name": "Merge" }, { "parameters": { "url": "http://192.168.1.100/rpc/Switch.GetStatus?id=0", "options": {} }, "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ 96, 224 ], "id": "4ad8075b-e882-4961-8076-3ce26cd8ff54", "name": "Daten vom Shelly Plug" }, { "parameters": { "fromEmail": "n8n@versenderadresse.de", "toEmail": "fertig@empfängeradresse.de", "subject": "Die Waschmaschine ist fertig !!!", "html": "=Start: {{ $json.startedAt\n ? new Date($json.startedAt).toLocaleString('de-DE', {\n year:'numeric', month:'2-digit', day:'2-digit', hour:'2-digit', minute:'2-digit'\n })\n : '–' }} Uhr\n
\nEnde: {{ $json.finishedAt\n ? new Date($json.finishedAt).toLocaleString('de-DE', {\n year:'numeric', month:'2-digit', day:'2-digit', hour:'2-digit', minute:'2-digit'\n })\n : '–' }} Uhr\n

\nLetzter Messwert: {{ $json.apower }} W", "options": {} }, "type": "n8n-nodes-base.emailSend", "typeVersion": 2.1, "position": [ 992, 416 ], "id": "0f034719-2eff-43f5-8dec-1545756e9eab", "name": "Fertigmeldung", "webhookId": "254d4412-435b-434a-8166-a7e8dfa2e813", "credentials": { "smtp": { "id": "LDk7XIcRXQlMzOgj", "name": "n8n@versenderadresse.de" } } }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 }, "conditions": [ { "id": "b9110b37-1fd2-4f35-a995-45175e3b15c5", "leftValue": "={{ $node[\"Code\"].json[\"finished\"] }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 768, 416 ], "id": "7a8ec779-3f4e-4a72-8c25-380058e77361", "name": "Maschine fertig?" }, { "parameters": { "operation": "executeQuery", "query": "SELECT key, state, highcnt, lowcnt, laststartts, updatedat\nFROM public.washer_state\nWHERE key = 'washer'\nLIMIT 1;", "options": {} }, "type": "n8n-nodes-base.postgres", "typeVersion": 2.6, "position": [ 96, 416 ], "id": "74e8a722-5046-45d6-9f8d-230eb6c2cc6f", "name": "Daten Lesen - Status Waschmaschine (DB)", "credentials": { "postgres": { "id": "dsAxdCgZJ8kPB2tW", "name": "PostgreSQL n8n" } } }, { "parameters": { "operation": "executeQuery", "query": "INSERT INTO public.washer_state (key, state, highcnt, lowcnt, laststartts, updatedat)\nVALUES (\n 'washer',\n '{{$json.stateData.state}}',\n {{$json.stateData.highcnt}},\n {{$json.stateData.lowcnt}},\n {{ $json.stateData.laststartts ? \"'\" + $json.stateData.laststartts + \"'::timestamptz\" : \"NULL\" }},\n '{{$json.stateData.updatedat}}'::timestamptz\n)\nON CONFLICT (key) DO UPDATE SET\n state = EXCLUDED.state,\n highcnt = EXCLUDED.highcnt,\n lowcnt = EXCLUDED.lowcnt,\n laststartts = EXCLUDED.laststartts,\n updatedat = EXCLUDED.updatedat;", "options": {} }, "type": "n8n-nodes-base.postgres", "typeVersion": 2.6, "position": [ 784, 224 ], "id": "e9acb51f-83d7-4446-be25-3228eb9f7f22", "name": "Status in Datenbank schreiben", "credentials": { "postgres": { "id": "dsAxdCgZJ8kPB2tW", "name": "PostgreSQL n8n" } } }, { "parameters": { "rule": { "interval": [ { "field": "seconds", "secondsInterval": 5 } ] } }, "type": "n8n-nodes-base.scheduleTrigger", "typeVersion": 1.2, "position": [ -128, 320 ], "id": "aa4cfbda-95a3-4c49-ac0f-478840fea67b", "name": "Trigger alle 5 Sekunden" } ], "pinData": {}, "connections": { "Code": { "main": [ [ { "node": "Maschine fertig?", "type": "main", "index": 0 }, { "node": "Status in Datenbank schreiben", "type": "main", "index": 0 } ] ] }, "Merge": { "main": [ [ { "node": "Code", "type": "main", "index": 0 } ] ] }, "Daten vom Shelly Plug": { "main": [ [ { "node": "Merge", "type": "main", "index": 0 } ] ] }, "Maschine fertig?": { "main": [ [ { "node": "Fertigmeldung", "type": "main", "index": 0 } ] ] }, "Daten Lesen - Status Waschmaschine (DB)": { "main": [ [ { "node": "Merge", "type": "main", "index": 1 } ] ] }, "Trigger alle 5 Sekunden": { "main": [ [ { "node": "Daten vom Shelly Plug", "type": "main", "index": 0 }, { "node": "Daten Lesen - Status Waschmaschine (DB)", "type": "main", "index": 0 } ] ] } }, "active": false, "settings": { "executionOrder": "v1" }, "versionId": "dcfbddb3-78cb-43b4-afde-e595718170f7", "meta": { "instanceId": "ffe0b70cc577e9b348f8b959bbfec3f08e5dd04236a3439c4dcac1907ffb5606" }, "id": "dm1hy1JBOqaBXghS", "tags": [] }