title: Node-RED
description: Point 'n' Click workflow automation
parent: smarthome
position: 300
date: 2021-11-01
update: 2022-05-23
comments: true
---
[Node-RED](https://nodered.org/) is a great tool for visually creating workflows based on events.
I use it in conjunction with my [ESP-Env sensor and actor hardware](espenv.html) and MQTT to automate my *smart* home.
I plan to extend these workflows as required when I add new hardware to my network.
Here is a simple setup that automatically switches lights in my bathroom according to the sun position, using [node-red-contrib-sunevents](https://github.com/freakent/node-red-contrib-sunevents).
It allows forcing a temporary override via another MQTT topic, for a lightswitch.
The fan in my window-less bathroom is kept on all the time for now.
In the future I want to add movement sensors to the bathroom and integrate them into this logic, as well as the temperature / humidity sensors I already have in there.
All these devices run my [ESP-Env](/espenv.html) firmware.
And here are the flows for importing in Node-RED.
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[
{
"id": "490116e54af5ff9a",
"type": "tab",
"label": "Bathroom Lights",
"disabled": false,
"info": "",
"env": []
},
{
"id": "74341bea93cc320d",
"type": "tab",
"label": "Bathroom Fan",
"disabled": false,
"info": "",
"env": []
},
{
"id": "b9932c4c66b18537",
"type": "tab",
"label": "Functions",
"disabled": false,
"info": "",
"env": []
},
{
"id": "5be146a97e98891c",
"type": "mqtt-broker",
"name": "iot.fritz.box",
"broker": "iot.fritz.box",
"port": "1883",
"clientid": "",
"autoConnect": true,
"usetls": false,
"protocolVersion": "5",
"keepalive": "60",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"birthMsg": {},
"closeTopic": "",
"closeQos": "0",
"closePayload": "",
"closeMsg": {},
"willTopic": "",
"willQos": "0",
"willPayload": "",
"willMsg": {},
"sessionExpiry": ""
},
{
"id": "4039bc1ca3cd6e11",
"type": "comment",
"z": "490116e54af5ff9a",
"name": "Check for new Sun Events",
"info": "",
"x": 150,
"y": 40,
"wires": []
},
{
"id": "ce5504b6991f8bf4",
"type": "inject",
"z": "490116e54af5ff9a",
"name": "Every 12h",
"props": [
{
"p": "topic",
"vt": "str"
}
],
"repeat": "43200",
"crontab": "",
"once": true,
"onceDelay": "1",
"topic": "",
"x": 110,
"y": 80,
"wires": [
[
"5151002c9539d2d6"
]
]
},
{
"id": "5151002c9539d2d6",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Set Location",
"rules": [
{
"t": "set",
"p": "payload.latitude",
"pt": "msg",
"to": "47.6",
"tot": "str"
},
{
"t": "set",
"p": "payload.longitude",
"pt": "msg",
"to": "9.4",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 270,
"y": 80,
"wires": [
[
"bc6e8bf098875279"
]
]
},
{
"id": "bc6e8bf098875279",
"type": "sun events",
"z": "490116e54af5ff9a",
"testmode": false,
"verbose": "N",
"topic": "",
"name": "Sun Events",
"x": 430,
"y": 80,
"wires": [
[
"4384fcd3b3567c6c",
"9c21e093193d54e4"
]
]
},
{
"id": "d8f1896d6ed5ca0d",
"type": "switch",
"z": "490116e54af5ff9a",
"name": "On Sunrise",
"property": "sunevent",
"propertyType": "global",
"rules": [
{
"t": "eq",
"v": "sunrise",
"vt": "str"
}
],
"checkall": "false",
"repair": false,
"outputs": 1,
"x": 650,
"y": 260,
"wires": [
[
"98d848700eaa119d",
"76965df29f0c2651"
]
]
},
{
"id": "d17e0c1b295d531a",
"type": "switch",
"z": "490116e54af5ff9a",
"name": "On Sunset",
"property": "sunevent",
"propertyType": "global",
"rules": [
{
"t": "eq",
"v": "sunset",
"vt": "str"
}
],
"checkall": "false",
"repair": false,
"outputs": 1,
"x": 650,
"y": 300,
"wires": [
[
"3e4a16697db5b83d",
"6df166fb14211461"
]
]
},
{
"id": "895f005abb0c7a30",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Bathroom Big Light",
"rules": [
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "bathroom/light_big",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 1030,
"y": 240,
"wires": [
[
"c8246e3ed2f6ac51"
]
]
},
{
"id": "c8246e3ed2f6ac51",
"type": "link call",
"z": "490116e54af5ff9a",
"name": "",
"links": [
"fd3c7a7a7a3b2e99"
],
"timeout": "30",
"x": 1280,
"y": 580,
"wires": [
[]
]
},
{
"id": "bbd4b1ede10ea09e",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Bathroom Small Light",
"rules": [
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "bathroom/light_small",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 1040,
"y": 360,
"wires": [
[
"c8246e3ed2f6ac51"
]
]
},
{
"id": "0516f39aac309884",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Store Sun State",
"rules": [
{
"t": "set",
"p": "sunevent",
"pt": "global",
"to": "payload.sunevent",
"tot": "msg"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 800,
"y": 80,
"wires": [
[
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]
]
},
{
"id": "86248602292b2932",
"type": "inject",
"z": "490116e54af5ff9a",
"name": "Every 30sec",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "30",
"crontab": "",
"once": true,
"onceDelay": "5",
"topic": "",
"payloadType": "date",
"x": 120,
"y": 540,
"wires": [
[
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]
},
{
"id": "98d848700eaa119d",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Turn On",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "on",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 860,
"y": 240,
"wires": [
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]
},
{
"id": "76965df29f0c2651",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Turn Off",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "off",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 860,
"y": 280,
"wires": [
[
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]
]
},
{
"id": "b7ea8636c374cd25",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Bathroom Small Light",
"rules": [
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "bathroom/light_small",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 1040,
"y": 280,
"wires": [
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},
{
"id": "3e4a16697db5b83d",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Turn On",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "on",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 860,
"y": 360,
"wires": [
[
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]
},
{
"id": "6df166fb14211461",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Turn Off",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "off",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 860,
"y": 400,
"wires": [
[
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]
},
{
"id": "8c16ac287cbf877c",
"type": "change",
"z": "490116e54af5ff9a",
"name": "Bathroom Big Light",
"rules": [
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "bathroom/light_big",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 1030,
"y": 400,
"wires": [
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]
},
{
"id": "6af17a7135211b49",
"type": "comment",
"z": "490116e54af5ff9a",
"name": "Set Lights",
"info": "",
"x": 100,
"y": 500,
"wires": []
},
{
"id": "23bd87871e2f0ecb",
"type": "debug",
"z": "490116e54af5ff9a",
"name": "Sun Event Data",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "sunevent",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 980,
"y": 80,
"wires": []
},
{
"id": "9c21e093193d54e4",
"type": "switch",
"z": "490116e54af5ff9a",
"name": "Is Sunrise?",
"property": "payload.sunevent",
"propertyType": "msg",
"rules": [
{
"t": "eq",
"v": "sunrise",
"vt": "str"
}
],
"checkall": "true",
"repair": false,
"outputs": 1,
"x": 610,
"y": 120,
"wires": [
[
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]
},
{
"id": "4384fcd3b3567c6c",
"type": "switch",
"z": "490116e54af5ff9a",
"name": "Is Sunset?",
"property": "payload.sunevent",
"propertyType": "msg",
"rules": [
{
"t": "eq",
"v": "sunset",
"vt": "str"
}
],
"checkall": "true",
"repair": false,
"outputs": 1,
"x": 610,
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"wires": [
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},
{
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"type": "comment",
"z": "490116e54af5ff9a",
"name": "Only store relevant states",
"info": "",
"x": 630,
"y": 40,
"wires": []
},
{
"id": "125e5ada06d3bb84",
"type": "mqtt in",
"z": "490116e54af5ff9a",
"name": "Forced Light",
"topic": "bathroom/force_light",
"qos": "2",
"datatype": "auto",
"broker": "5be146a97e98891c",
"nl": false,
"rap": true,
"rh": 0,
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"wires": [
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},
{
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"type": "change",
"z": "490116e54af5ff9a",
"name": "Store Forced Light State",
"rules": [
{
"t": "set",
"p": "forced_light_bathroom",
"pt": "global",
"to": "payload",
"tot": "msg"
}
],
"action": "",
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"reg": false,
"x": 370,
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"wires": [
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},
{
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"type": "comment",
"z": "490116e54af5ff9a",
"name": "Allow overriding light schedule",
"info": "",
"x": 160,
"y": 220,
"wires": []
},
{
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"type": "change",
"z": "490116e54af5ff9a",
"name": "Store Time of forcing",
"rules": [
{
"t": "set",
"p": "forced_light_bathroom_time",
"pt": "global",
"to": "",
"tot": "date"
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],
"action": "",
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"reg": false,
"x": 360,
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"wires": [
[]
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},
{
"id": "ce6a5620f1e6af76",
"type": "switch",
"z": "490116e54af5ff9a",
"name": "Lights Forced?",
"property": "forced_light_bathroom",
"propertyType": "global",
"rules": [
{
"t": "eq",
"v": "none",
"vt": "str"
},
{
"t": "eq",
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"vt": "str"
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{
"t": "eq",
"v": "big",
"vt": "str"
},
{
"t": "eq",
"v": "small",
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],
"checkall": "true",
"repair": false,
"outputs": 4,
"x": 400,
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"wires": [
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},
{
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"name": "Set Lights according to Sun Schedule",
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"x": 730,
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"wires": []
},
{
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"type": "change",
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"rules": [
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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The Node-RED installation is [handled by an ansible script](/sovereign.html).