Flow Details
This flow turns display on/off in desired time.
Setup
Step 1: Install node-red-contrib-chronos
Instructions are here https://flows.nodered.org/node/node-red-contrib-chronos
Step 2: Configure Scheduler node
Set your location (latitude and longitude) and ON/OFF time in Scheduler node.
Step 3: Set vars
Set MQTT topic prefix in SET vars node
Step 4: Set MQTT connection
Set MQTT connection in MQTT node
[
{
"id": "5a03cbe9a6459077",
"type": "tab",
"label": "LED Matrix display schedule",
"disabled": false,
"info": "",
"env": []
},
{
"id": "f242dc6511e99976",
"type": "chronos-scheduler",
"z": "5a03cbe9a6459077",
"name": "Schedule power",
"config": "db14326cf702f85d",
"schedule": [
{
"trigger": {
"type": "time",
"value": "1:00",
"offset": 0,
"random": false
},
"output": {
"type": "msg",
"property": {
"name": "power",
"type": "str",
"value": "OFF"
}
}
},
{
"trigger": {
"type": "time",
"value": "6:00",
"offset": 0,
"random": false
},
"output": {
"type": "msg",
"property": {
"name": "power",
"type": "str",
"value": "ON"
}
}
}
],
"multiPort": false,
"nextEventPort": false,
"disabled": false,
"outputs": 1,
"x": 240,
"y": 340,
"wires": [
[
"771866a7baea7fb5"
]
]
},
{
"id": "771866a7baea7fb5",
"type": "function",
"z": "5a03cbe9a6459077",
"name": "Dispaly ON/OFF function",
"func": "var prefix = flow.get(\"prefix\");\nmsg.topic = prefix+ \"/power\";\nvar value = '';\n\nif (msg.power === \"ON\"){\nvalue = 1;\n}else if (msg.power === \"OFF\"){\nvalue = 0;\n}\n\nmsg.payload = { \"power\": value };\n\nnode.status({ fill: 'green', shape: 'ring', text: msg.power});\n\nreturn msg;\n\n\n\n\n",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 550,
"y": 260,
"wires": [
[
"1460c777a74257e0"
]
]
},
{
"id": "ba9e45f34b558fb1",
"type": "inject",
"z": "5a03cbe9a6459077",
"name": "Display ON",
"props": [
{
"p": "power",
"v": "ON",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": "1",
"topic": "",
"x": 250,
"y": 220,
"wires": [
[
"771866a7baea7fb5"
]
]
},
{
"id": "59258bca80221ddf",
"type": "inject",
"z": "5a03cbe9a6459077",
"name": "Display OFF",
"props": [
{
"p": "power",
"v": "OFF",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": "1",
"topic": "",
"x": 250,
"y": 280,
"wires": [
[
"771866a7baea7fb5"
]
]
},
{
"id": "1460c777a74257e0",
"type": "mqtt out",
"z": "5a03cbe9a6459077",
"name": "",
"topic": "",
"qos": "",
"retain": "",
"respTopic": "",
"contentType": "",
"userProps": "",
"correl": "",
"expiry": "",
"broker": "7ab578ded1bbee4f",
"x": 770,
"y": 260,
"wires": []
},
{
"id": "11459bd9b3dd2d37",
"type": "change",
"z": "5a03cbe9a6459077",
"name": "SET vars",
"rules": [
{
"t": "set",
"p": "prefix",
"pt": "flow",
"to": "awtrix",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 400,
"y": 120,
"wires": [
[]
]
},
{
"id": "b47441db0275aa0d",
"type": "inject",
"z": "5a03cbe9a6459077",
"name": "Start",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": "1",
"topic": "",
"payload": "",
"payloadType": "date",
"x": 230,
"y": 120,
"wires": [
[
"11459bd9b3dd2d37"
]
]
},
{
"id": "db14326cf702f85d",
"type": "chronos-config",
"name": "local",
"timezone": "",
"sunPositions": []
},
{
"id": "7ab578ded1bbee4f",
"type": "mqtt-broker",
"name": "localhost",
"broker": "localhost",
"port": "1883",
"clientid": "",
"autoConnect": true,
"usetls": false,
"protocolVersion": "4",
"keepalive": "60",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"birthMsg": {},
"closeTopic": "",
"closeQos": "0",
"closePayload": "",
"closeMsg": {},
"willTopic": "",
"willQos": "0",
"willPayload": "",
"willMsg": {},
"sessionExpiry": ""
}
]
-- Flow first published on August 31, 2023, last updated on August 31, 2023 at 11:25.
