# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=548

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 549

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## [Problems with node-red](https://discourse.nodered.org/t/problems-with-node-red/46125)

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**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 7\
**Last updated:** [26 May 2021 13:18 UTC](https://discourse.nodered.org/t/problems-with-node-red/46125 "2021-05-26T13:18:33Z")

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Hi, i installed the broadlink node and since than my node-red hardly responces... Anyone a sugesstion how to handle further ? =================== 23 May 21:20:21 - \[info\] Node-RED version: v1.3.5 23 May 21:20:21 - \[inf…

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## [Node Red newbie - first question](https://discourse.nodered.org/t/node-red-newbie-first-question/46098)

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**Author:** [@pw44](https://discourse.nodered.org/u/pw44)\
**Replies:** 3\
**Last updated:** [26 May 2021 13:17 UTC](https://discourse.nodered.org/t/node-red-newbie-first-question/46098 "2021-05-26T13:17:47Z")

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Dear @ll, as a complete newbie in node red, but willing to learn, i instaleld it and some add ons, like mqtt. I also have mosquitto broker installed, and would like to start the first flow, as sending an mqtt message t…

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## [1|Node-Red | Error loading settings file: /root/.node-red/settings.js](https://discourse.nodered.org/t/1-node-red-error-loading-settings-file-root-node-red-settings-js/46269)

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**Author:** [@sterinapen](https://discourse.nodered.org/u/sterinapen)\
**Replies:** 2\
**Last updated:** [26 May 2021 13:09 UTC](https://discourse.nodered.org/t/1-node-red-error-loading-settings-file-root-node-red-settings-js/46269 "2021-05-26T13:09:26Z")

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When i try to start node red using PM2 its gives me below error: 0|Node-Red | Error loading settings file: /root/.node-red/settings.js 0|Node-Red | Error loading settings file: /root/.node-red/settings.js 0|Node-Red …

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## [Condition Statement](https://discourse.nodered.org/t/condition-statement/46274)

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**Author:** [@Eorkz](https://discourse.nodered.org/u/Eorkz)\
**Replies:** 9\
**Last updated:** [26 May 2021 13:00 UTC](https://discourse.nodered.org/t/condition-statement/46274 "2021-05-26T13:00:24Z")

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Hello, So, I am learning node-red and im having trouble in making this function. I have values (temperature, humidity, moisture, etc) and I want to build a water supply system and I need to create rules where, for exam…

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## [Node sleep after execution](https://discourse.nodered.org/t/node-sleep-after-execution/46278)

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**Author:** [@DPhantom](https://discourse.nodered.org/u/DPhantom)\
**Replies:** 1\
**Last updated:** [26 May 2021 12:54 UTC](https://discourse.nodered.org/t/node-sleep-after-execution/46278 "2021-05-26T12:54:42Z")

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Hello, i am currently working at a Project that will send you a notification to your browser if a value of a sensor reaches a critical point. Currently it will always send a notification, whenever the value is too high, …

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## [Dropbox access is failing](https://discourse.nodered.org/t/dropbox-access-is-failing/46276)

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**Author:** [@wuppergit](https://discourse.nodered.org/u/wuppergit)\
**Replies:** 1\
**Last updated:** [26 May 2021 12:41 UTC](https://discourse.nodered.org/t/dropbox-access-is-failing/46276 "2021-05-26T12:41:18Z")

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Hi there, I'm trying to update Dropbox-Files via Node RED. The environment is: RPi 3B Node-RED 1.3.5 Node.js 12.22.1 node-red-node-dropbox The flow is like this (inject -\> dropbox-out: \[{"id":"db687784.6dabb8","t…

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## [TwiML invalid content type while using IBM Cloud storage for audio files](https://discourse.nodered.org/t/twiml-invalid-content-type-while-using-ibm-cloud-storage-for-audio-files/46159)

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**Author:** [@NRdiscrs9393](https://discourse.nodered.org/u/NRdiscrs9393)\
**Replies:** 2\
**Last updated:** [26 May 2021 12:38 UTC](https://discourse.nodered.org/t/twiml-invalid-content-type-while-using-ibm-cloud-storage-for-audio-files/46159 "2021-05-26T12:38:44Z")

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Hello all, There appears to be an issue with files uploaded by node-red-contrib-ibm-watson-iot where I get the following error Error 12300 - Twilio while trying to access an audio file for a TwiML application. The stran…

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## [Login in several levels](https://discourse.nodered.org/t/login-in-several-levels/46266)

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**Author:** [@h.nortun](https://discourse.nodered.org/u/h.nortun)\
**Replies:** 1\
**Last updated:** [26 May 2021 12:28 UTC](https://discourse.nodered.org/t/login-in-several-levels/46266 "2021-05-26T12:28:59Z")

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I have created a node-red program, which I am considering running via a remote server. The program is scalable and can be used by several customers. Therefore, I want to make a breakdown, so that customers can check the…

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## [Unwanted connection between button and plug](https://discourse.nodered.org/t/unwanted-connection-between-button-and-plug/46275)

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**Author:** [@mosi-m](https://discourse.nodered.org/u/mosi-m)\
**Replies:** 0\
**Last updated:** [26 May 2021 12:23 UTC](https://discourse.nodered.org/t/unwanted-connection-between-button-and-plug/46275 "2021-05-26T12:23:58Z")

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Hello all, I´m using two aqara opple 4 buttons and a Mi Smart Plug. I want to control them with Zigbee2MQTT and NodeRed. This were already working without any problems. Since I switched the network infrastructure and …

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## [Openzwave and USB stick (un)plugged in real time](https://discourse.nodered.org/t/openzwave-and-usb-stick-un-plugged-in-real-time/46226)

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**Author:** [@Mamonetti](https://discourse.nodered.org/u/Mamonetti)\
**Replies:** 2\
**Last updated:** [26 May 2021 07:47 UTC](https://discourse.nodered.org/t/openzwave-and-usb-stick-un-plugged-in-real-time/46226 "2021-05-26T07:47:18Z")

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Is there any way to make openzwave (node-red-contrib-openzwave) go back to life when you unplug the USB stick and plug it again without having to restart nodered? I don't know if it has to do with me having multiple Z-W…

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## [Node-red-contrib-modbus needs visual studio to install !?](https://discourse.nodered.org/t/node-red-contrib-modbus-needs-visual-studio-to-install/46270)

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**Author:** [@Utorque](https://discourse.nodered.org/u/Utorque)\
**Replies:** 2\
**Last updated:** [26 May 2021 11:22 UTC](https://discourse.nodered.org/t/node-red-contrib-modbus-needs-visual-studio-to-install/46270 "2021-05-26T11:22:39Z")

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Hello, I am trying to install node-red-contrib on wnidows 10. I have a really weird error : It says that I have to install VS ??? Is this for real ? Anyone knows why ?? I'm on a student computer, if I could avoid it it …

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## [Array to Json Object](https://discourse.nodered.org/t/array-to-json-object/46261)

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**Author:** [@jackie7](https://discourse.nodered.org/u/jackie7)\
**Replies:** 6\
**Last updated:** [26 May 2021 11:17 UTC](https://discourse.nodered.org/t/array-to-json-object/46261 "2021-05-26T11:17:55Z")

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Hey there, I want to convert an array to a Json object. I've tried many ways but i didn't get the format I want! I want to get the following result: payload: " {"Val1" : 10, "Val2" : 11, "Val3: 12} " Plus, I have a s…

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## [Basic http endpoint ECONNREFUSED problem](https://discourse.nodered.org/t/basic-http-endpoint-econnrefused-problem/46265)

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**Author:** [@chrisofCCL](https://discourse.nodered.org/u/chrisofCCL)\
**Replies:** 2\
**Last updated:** [26 May 2021 10:44 UTC](https://discourse.nodered.org/t/basic-http-endpoint-econnrefused-problem/46265 "2021-05-26T10:44:54Z")

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I've used the Node-Red http request on many occasions with no problems but have only just started trying to set up an http endpoint. I'm falling at the first hurdle and have no idea why. It's all local to one Ubuntu …

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## [Temperature in Node red](https://discourse.nodered.org/t/temperature-in-node-red/45981)

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**Author:** [@Warren](https://discourse.nodered.org/u/Warren)\
**Replies:** 11\
**Last updated:** [26 May 2021 09:53 UTC](https://discourse.nodered.org/t/temperature-in-node-red/45981 "2021-05-26T09:53:18Z")

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Hi . Trying to get some help I have the following setup Rapsberry pi Relays Temperature sensor ds18d20 So what I'm trying to do is setup the temperature with a slider . Then if the temp from the sensor is below the …

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## [AWS install : Cannot find module './lib/red.js'](https://discourse.nodered.org/t/aws-install-cannot-find-module-lib-red-js/46048)

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**Author:** [@etawyy](https://discourse.nodered.org/u/etawyy)\
**Replies:** 1\
**Last updated:** [26 May 2021 09:52 UTC](https://discourse.nodered.org/t/aws-install-cannot-find-module-lib-red-js/46048 "2021-05-26T09:52:09Z")

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I have followed that guide to install an instance of nodered on AWS: Running on Amazon Web Services : Node-RED I actually deployed with a pipeline, where source is a github repo with just a package.json, a buildspec and…

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## [Switch Node and Jsonata and/or range?](https://discourse.nodered.org/t/switch-node-and-jsonata-and-or-range/46256)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 1\
**Last updated:** [26 May 2021 07:30 UTC](https://discourse.nodered.org/t/switch-node-and-jsonata-and-or-range/46256 "2021-05-26T07:30:19Z")

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Guys, Just looking to simplify some flows and wondering if i could use the switch node Essentially i want to feed in a Month number (between 1 and 12) and then based on the value(s) switch to one of the outputs. So for…

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## [Unable to data to Esp32](https://discourse.nodered.org/t/unable-to-data-to-esp32/46228)

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**Author:** [@saqib](https://discourse.nodered.org/u/saqib)\
**Replies:** 8\
**Last updated:** [26 May 2021 06:18 UTC](https://discourse.nodered.org/t/unable-to-data-to-esp32/46228 "2021-05-26T06:18:40Z")

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Hello Everyone I am working on a project in which i have to take user input(numeric value) and send it to esp32 using mosquitto mqtt broker. can anyone guide me how to do that and how to parse the data in esp32? i have d…

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## [Convert ModBus Float32 to Dec](https://discourse.nodered.org/t/convert-modbus-float32-to-dec/45975)

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**Author:** [@TheMisterA](https://discourse.nodered.org/u/TheMisterA)\
**Replies:** 13\
**Last updated:** [26 May 2021 06:18 UTC](https://discourse.nodered.org/t/convert-modbus-float32-to-dec/45975 "2021-05-26T06:18:15Z")

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Hi everyone, I have a ModBus register of 2 words in Float32. I can't convert it to decimal to import it into InfluxDB. I can't config the Buffer Parser... Help please :slight\_smile:

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## [Collapse group (not UI Control)](https://discourse.nodered.org/t/collapse-group-not-ui-control/46245)

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**Author:** [@d0uub](https://discourse.nodered.org/u/d0uub)\
**Replies:** 0\
**Last updated:** [26 May 2021 01:52 UTC](https://discourse.nodered.org/t/collapse-group-not-ui-control/46245 "2021-05-26T01:52:00Z")

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possible to collapse group in flow? or do not show in subflow? i have long flow which is not a reusable in subflow

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## [Parsing Space Separated Text Line](https://discourse.nodered.org/t/parsing-space-separated-text-line/46056)

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**Author:** [@Randy](https://discourse.nodered.org/u/Randy)\
**Replies:** 18\
**Last updated:** [26 May 2021 01:16 UTC](https://discourse.nodered.org/t/parsing-space-separated-text-line/46056 "2021-05-26T01:16:39Z")

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I need some guidance to display data from my weather station to the dashboard. My weather station software sends a single line, space separated text file containing 56 fields about every 15 seconds. This file is sent to…

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## [Node Red control of PC Application](https://discourse.nodered.org/t/node-red-control-of-pc-application/46124)

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**Author:** [@mikeyd0407](https://discourse.nodered.org/u/mikeyd0407)\
**Replies:** 7\
**Last updated:** [25 May 2021 22:13 UTC](https://discourse.nodered.org/t/node-red-control-of-pc-application/46124 "2021-05-25T22:13:43Z")

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Hi All, I want to run node red on my pc and have it communicate / control a resident PC application (the application will be a C# console or Windows application used to control an external piece of hardware through auto…

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## [New to Node-Red and HA. Requesting Feedback on a flow](https://discourse.nodered.org/t/new-to-node-red-and-ha-requesting-feedback-on-a-flow/46181)

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**Author:** [@ewalker101](https://discourse.nodered.org/u/ewalker101)\
**Replies:** 1\
**Last updated:** [25 May 2021 18:00 UTC](https://discourse.nodered.org/t/new-to-node-red-and-ha-requesting-feedback-on-a-flow/46181 "2021-05-25T18:00:18Z")

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Hello everyone, I am new to hass, Node-Red and home automation. I have created a simple flow that turns on a nightlight in the evening and turns it off at sunrise. I was hoping that some of you would be able to look at …

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## [Ping - network latency](https://discourse.nodered.org/t/ping-network-latency/46129)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 8\
**Last updated:** [25 May 2021 15:56 UTC](https://discourse.nodered.org/t/ping-network-latency/46129 "2021-05-25T15:56:54Z")

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I've been getting some inconsistent latency on ping requests, and it appears that it is being caused by this (copied from this article) The reason the first ping usually fails is that the remote router in that LAN has …

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## [Delete azure blob (file)](https://discourse.nodered.org/t/delete-azure-blob-file/46224)

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**Author:** [@shmiFesto](https://discourse.nodered.org/u/shmiFesto)\
**Replies:** 0\
**Last updated:** [25 May 2021 15:48 UTC](https://discourse.nodered.org/t/delete-azure-blob-file/46224 "2021-05-25T15:48:26Z")

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Hi all, using this palette https://flows.nodered.org/node/node-red-contrib-azure-blob-storage I'm wondering how I would delete a blob. The description says "You can create and delete Containers and also blob files." B…

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## [Node RED with ADAM 6717](https://discourse.nodered.org/t/node-red-with-adam-6717/46219)

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**Author:** [@KrishnanRavichandran](https://discourse.nodered.org/u/KrishnanRavichandran)\
**Replies:** 2\
**Last updated:** [25 May 2021 14:40 UTC](https://discourse.nodered.org/t/node-red-with-adam-6717/46219 "2021-05-25T14:40:17Z")

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Hello, I am new to Node RED programming and working on a project where I use ADAM 6717 gateway for Data acquisition, analysis, transmission. The Node red is built-in in the ADAM 6717 and I have programmed using nodes to…

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## [String variable --\> context.set("string variable", "on");](https://discourse.nodered.org/t/string-variable-context-set-string-variable-on/46222)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 2\
**Last updated:** [25 May 2021 14:38 UTC](https://discourse.nodered.org/t/string-variable-context-set-string-variable-on/46222 "2021-05-25T14:38:34Z")

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how can I get this working? let s = "DGWZ"; I need : context.set("DGWZ","on");

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## [Send variable from Node-Red to python](https://discourse.nodered.org/t/send-variable-from-node-red-to-python/46218)

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**Author:** [@ptatay](https://discourse.nodered.org/u/ptatay)\
**Replies:** 1\
**Last updated:** [25 May 2021 14:09 UTC](https://discourse.nodered.org/t/send-variable-from-node-red-to-python/46218 "2021-05-25T14:09:42Z")

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Hi, I am trying to communicate python with node-red so that python knows the state of a variable that I receive by modbus.

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## [Snap on function for node red?](https://discourse.nodered.org/t/snap-on-function-for-node-red/46209)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 9\
**Last updated:** [25 May 2021 13:56 UTC](https://discourse.nodered.org/t/snap-on-function-for-node-red/46209 "2021-05-25T13:56:32Z")

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Hi Folks, I believe there is a snap on function for connecting nodes but I am totally clueless as to how to do it? Does anyone know how to have nodes snap on connect together rather than spending ages dragging lines fr…

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## [Formula in expression (mathematics)](https://discourse.nodered.org/t/formula-in-expression-mathematics/46216)

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**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 2\
**Last updated:** [25 May 2021 13:02 UTC](https://discourse.nodered.org/t/formula-in-expression-mathematics/46216 "2021-05-25T13:02:51Z")

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In a change node (see flow) I need to use the formula below: value = 10 ^ ((x-109) / 32) but I have no idea what is the correct way to put this formula in there. Of course I have tried different ways but without succes…

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## [TCP Open Protocol, POrt 4545 for Atlas Copco](https://discourse.nodered.org/t/tcp-open-protocol-port-4545-for-atlas-copco/46215)

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**Author:** [@wingkuan98](https://discourse.nodered.org/u/wingkuan98)\
**Replies:** 2\
**Last updated:** [25 May 2021 12:53 UTC](https://discourse.nodered.org/t/tcp-open-protocol-port-4545-for-atlas-copco/46215 "2021-05-25T12:53:33Z")

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Hi, I am currently working with MT Focus 6000 from Atlas Copco using this library “node-red-contrib-open-protocol-desoutter” in NodeRed. However, no matter how hard I tried, I can't get what I need by using the default …

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