Node-Red Flow Samples/Sharing

erktrek · June 11, 2021, 4:20pm

Me too!

napalmcsr · June 11, 2021, 11:14pm

Example of using DS Audio to cast random music to a music player and turn on the amp using a Smartthings button. Doubletap to go to the next song.

code

Budjik · July 5, 2021, 10:22am

Imported this one to today, I needed to escape the quotation marks in the functions to overcome the errors others reported. ie "Welcome Home" to \"Welcome Home\"
I have not converted to Hubitat yet, but happy I worked this out in first days of using Node-Red.

audiofreak9 · August 10, 2021, 12:13am

Example turns ON my pool named "Pool Pump" then OFF after a delay (hours) as set by the dim level of a Virtual Dimmer named "Skimmer". Dim Level (hours of pool pump run) is restricted between 1 to 6 in the flow, over 6% dim reverts to 6 (just my choice - change for your needs). Includes HH:MM:SS countdown timer until OFF and Pool Pump switch status in UI. The Skimmer is set to OFF and Dim Level 0 to 'reset' it for the next time. Requesting a dimmer in HE to turn ON at the last dimmed level does not send a Dim Level command, so it's not available to Node Red. Flow requires both ON and Dim Level to execute to hinder miss-operation.

Usage: "Alexa, set the Skimmer to 4" - pool runs for 4 hours
Required Paletts: node-red-dashboard, node-red-contrib-countdown
Pool Pump Z-Wave Relay: NuTone NFS20Z

Code

william2 · August 28, 2021, 1:54am

Title - Manage the buttons on a button controller with just 3 nodes.

Summary - I started out by connecting several node (switch, change, devices, commands, etc...), which in my opinion was pretty complex. So, I decided to go back and simplify it by using only 3 nodes (1 device node, 1 function node, and one command node) for 8 actions.

The button controller I'm using is a Hank four-key scene controller with PUSHED and HELD functions. The function node is comprised of simple IF statements:


if (msg.payload.value === 1 && msg.payload.name === "pushed") {
 msg.deviceId = "31";
 msg.command = "on";
} 

if (msg.payload.value === 1 && msg.payload.name === "held") {
 msg.deviceId = "31"; 
 msg.command = "off";
}

if (msg.payload.value === 4 && msg.payload.name === "pushed") {
 msg.deviceId = "278";
 msg.command = "on";
} 

if (msg.payload.value === 4 && msg.payload.name === "held") {
 msg.deviceId = "278"; 
 msg.command = "off";
}

return msg

msg.payload.value is the button that was pressed and msg.payload.name represents a pushed or held action, the matching of those two items sends a command of either on/off to the specified deviceId.

The command node can be anything since you are passing along the deviceId and command, it just serves as a shell if you will, msg.arguments can also be send in this manner.

This is what the edit properties look like:

Hank button

Function node

Command node

Hope this helps reduce some of your clutter as well.

erktrek · August 28, 2021, 11:06am

@william2 - To turn things up to "11" you could add an "environment variable" to your subflow called "ButtonMap" (or whatever) and make it a JSON string then in your function node compare it against the input..

In your example when you place the subflow node you would edit the "ButtonMap" entry to look something like this:

[
	{"button":1,"deviceId":"31"},
	{"button":4,"deviceId":"278"}
]

Just a way of abstracting things and allowing you to reuse the subflow for other stuff if necessary...

Also on a semi-related note - Heres a repost of a subflow I wrote called "Button Taps" that allows you to handle multi-tapping events even on buttons that don't have that capability. Works with Lutron Picos using both fast and regular drivers... You can have single, double, triple, quadruple or N+ taps and set the length of tap detection time. Will trap "doubleTap" and "held" events if the button/driver supports it.

The "Office Button" in the above sequence is a Samsung SmartThings Button.

It does require the timed-counter node though..

node-red-contrib-timed-counter

@erktreks Button Taps - 210828

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william2 · August 28, 2021, 2:47pm

@erktrek - thanks for the advice, never thought of using it as an environment variable, I'm going to have to give this a try. Also, my jaw dropped when you mentioned your Button Taps and the ability to create additional taps that are not part of the button configuration. I'm definitely going to play around with this!

jrau272 · August 28, 2021, 6:52pm

Title: Universal Pico Controller

Here is my attempt at a universal Pico Controller Subflow — for my use cases anyway. The top output sends out all commands and the next five are per button commands for easy integration.

Flow

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$env('Top')","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":2042,"y":176,"wires":[[]]},{"id":"6bf65029ff099fc4","type":"switch","z":"f303a7d09980af88","name":"env.CT","property":"CT","propertyType":"env","rules":[{"t":"eq","v":"circadian2200","vt":"str"},{"t":"eq","v":"circadian2700","vt":"str"},{"t":"eq","v":"circadianhack2200","vt":"str"},{"t":"eq","v":"circadianhack2700","vt":"str"}],"checkall":"true","repair":false,"outputs":4,"x":1650,"y":272,"wires":[["c4b95f6d92f10bb3"],["78e8e815a0418aed"],["778f3cb9bd70477a"],["579155c6728b1ee2"]]},{"id":"78e8e815a0418aed","type":"change","z":"f303a7d09980af88","name":"circadian2700,Top","rules":[{"t":"set","p":"command","pt":"msg","to":"Command","tot":"env"},{"t":"set","p":"arguments","pt":"msg","to":"$globalContext(\"circadian2700\") & \",\" & $env('Top')","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":2042,"y":208,"wires":[[]]},{"id":"778f3cb9bd70477a","type":"change","z":"f303a7d09980af88","name":"circadianhack2200,Top","rules":[{"t":"set","p":"command","pt":"msg","to":"Command","tot":"env"},{"t":"set","p":"arguments","pt":"msg","to":"$globalContext(\"circadianhack2200\") & $env('Top')","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":2062,"y":240,"wires":[[]]},{"id":"579155c6728b1ee2","type":"change","z":"f303a7d09980af88","name":"circadianhack2700,Top","rules":[{"t":"set","p":"command","pt":"msg","to":"Command","tot":"env"},{"t":"set","p":"arguments","pt":"msg","to":"$globalContext(\"circadianhack2700\") & $env('Top')","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":2062,"y":272,"wires":[[]]}]

this makes for an easy drop in pico controller for different bulbs. For simple dimmer bulbs it can simply be placed between the pico device node and the dimmer command node:

The level of the top button and the center “favorite” button can be set as environmental variables. The default is 100% and 50%:

For color temperature bulbs, I can select the setColorTemperature command as an environmental variable, and then I’ve hard coded my global variable color temps into the flow.

The toughest part was trying to get the up and down dimmer buttons working with bulb groups as hubitat does not support the “startraising” and startlowering” commands for bulb groups. When the “Group” env variable is selected each up or down button press will increase or decrease the level by 10%. The problem is tracking the current state of the bulb, which may be turned on/off and have its level set by many other automations. Ultimately, I ended up using two device nodes set to send level events and switch events. They must be named “currentlevel” and “currentswitch” to be sorted correctly in the subflow. This seems to work relatively reliably.

william2 · September 12, 2021, 12:52am

Title - Manage your DLNA Speakers

Summary - node-red-contrib-dlna , This node allows you to send the sound level and a url to play on your DLNA speakers among other abilities like pause, stop, and get volume. I use it to send a notifications when the front or yard door is left open, for notifying when that alarm is set and a few other announcements. Below is an example setup to get you started. By the way this works great with the Hubitat file manage if you are storing mp3 on it.

To locate your device you will need an app like UPnP Browser if you are on Android or UPnP Mate on IOS.

    {
        "id": "1d3e7a3e7ef62ecc",
        "type": "dlna-action",
        "z": "3e92963d10841075",
        "name": "DLNA Speaker",
        "device": "http://192.168.109.239:49152/description.xml",
        "x": 1520,
        "y": 580,
        "wires": [
            []
        ]
    },
    {
        "id": "1967dbe9a5d672b4",
        "type": "inject",
        "z": "3e92963d10841075",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "disarmed",
        "payloadType": "str",
        "x": 1140,
        "y": 540,
        "wires": [
            [
                "e76870e61e027627"
            ]
        ]
    },
    {
        "id": "e76870e61e027627",
        "type": "function",
        "z": "3e92963d10841075",
        "name": "DLNA",
        "func": "\nif (msg.payload === \"disarmed\") {\nvar msg1 = {payload: {\"action\": \"setvolume\", \"volume\": \"25\"}}\nvar msg2 = {payload: {\"action\": \"load\", \"url\": \"http://192.168.109.178/local/La_alarma_ha_sido_desactivada.mp3\"}}\nnode.status({fill:\"red\",shape:\"dot\",text:\"desarmado\"})\nnode.send(msg1); node.send(msg2);\n}\n\n\nif (msg.payload === \"armed\") {\nvar msg3 = {payload: {\"action\": \"setvolume\", \"volume\": \"50\"}}\nvar msg4 = {payload: {\"action\": \"load\", \"url\": \"http://192.168.109.178/local/Alarma_de_modo_casa.mp3\"}}\nnode.status({fill:\"red\",shape:\"dot\",text:\"modo casa\"})\nnode.send(msg3); node.send(msg4);\n    \n}\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 1310,
        "y": 580,
        "wires": [
            [
                "1d3e7a3e7ef62ecc"
            ]
        ]
    },
    {
        "id": "2951e644a88c1429",
        "type": "inject",
        "z": "3e92963d10841075",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "armed",
        "payloadType": "str",
        "x": 1150,
        "y": 580,
        "wires": [
            [
                "e76870e61e027627"
            ]
        ]
    }
]

dkbishop1 · September 19, 2021, 9:12pm

This is a great thread.

I am very new to node red and was hoping to get some help with what should be a relatively easy flow.

I have a presence sensor that, when detected and made present by hubitat through the system I have setup, should open my garage and unlock my door in that garage. And if I leave, it should close the garage and lock the door in the garage too. It isnt working as expected (at all) though and I am pretty sure it is user error due to my being so new at this.

Also I am not sure how to get pushover to send me a message in node red either. I do have it set up with hubitat and the API keys are in place as well

Any ideas on what I need to do to correct this? Thanks for any help.

erktrek · September 19, 2021, 9:54pm

Couple of things..

You are using HE command nodes for the presence sensor. I think you want the HE Device nodes.. and make sure "send events" is checked.
the time range node, where is that from, it's not stock - what does the properties page look like? Yellow would indicate something is out of range somehow but maybe that was the last time an event happened. You might check your system time as well to make sure it's set to your local time.
make sure your palette is up to date

Here's a very simple example:

dkbishop1 · September 19, 2021, 9:56pm

Thank you @erktrek I will check this right now:

erktrek · September 19, 2021, 10:04pm

It's fine - I don't think that is your issue but could you screen shot the properties page of that node?

Here is mine:

dkbishop1 · September 19, 2021, 10:04pm

The time range was something I installed because I dont see a stock time range to use. Where would it be or what is it called?

Here is the properties page for the time range node as requested, but I would rather just use the stock one for now if I could find it lol.

aaiyar · September 19, 2021, 10:04pm

I use a sequence very similar to that posted by @erktrek, with the garage door being controlled by the status of a presence sensor in my car. I do use the time range node to that the door can be raised only between certain hours.

Also, I check the door status before either raising it (upon arrival) or lowering it (upon departure).

erktrek · September 19, 2021, 10:05pm

I goofed on the switch node - it should be "present/not present" for the msg.payload.value comparison!!!!

dkbishop1 · September 19, 2021, 10:06pm

i dont know where this time range default node is.

dkbishop1 · September 19, 2021, 10:08pm

would you be willing to share that flow? im having a hard time of it. I am used to SmartThings/WebCoRE but think NodeRED by be better for hubitat. WebCoRE is seeing the changes for present/not present on the firsty try for some reason.

erktrek · September 19, 2021, 10:08pm

Mine is part of the "node-red-contrib-sun-position" nodes.. handy for sun position calcs etc..

aaiyar · September 19, 2021, 10:09pm

There isn't one. You are using the one that I use. Just make sure you enter your latitude and longitude to configure that node.