# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=118

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

**Page:** 119

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## ["HTTP Request Node" seems to overwrite all sub-strings in "msg.payload", elegant solution for working around this?](https://discourse.nodered.org/t/http-request-node-seems-to-overwrite-all-sub-strings-in-msg-payload-elegant-solution-for-working-around-this/87021)

<div class="topic-metadata">

**Author:** [@EpicLPer](https://discourse.nodered.org/u/EpicLPer)\
**Replies:** 4\
**Last updated:** [5 April 2024 10:22 UTC](https://discourse.nodered.org/t/http-request-node-seems-to-overwrite-all-sub-strings-in-msg-payload-elegant-solution-for-working-around-this/87021 "2024-04-05T10:22:06Z")

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Heya, somewhat new-ish to Node-RED in general so sorry if this might sound noobish :slight\_smile: In short I'm making a REST API call via the "HTTP Request Node" from a Telegram chat command, the Telegram node appends …

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## [Separate CSV columns](https://discourse.nodered.org/t/separate-csv-columns/86831)

<div class="topic-metadata">

**Author:** [@AleksDeco](https://discourse.nodered.org/u/AleksDeco)\
**Replies:** 14\
**Last updated:** [5 April 2024 07:14 UTC](https://discourse.nodered.org/t/separate-csv-columns/86831 "2024-04-05T07:14:00Z")

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Hello, I'm new to Node-RED. Having some trouble with sending data to CSV. I need two separate columns with different names and different data below for example but I'm getting everything in one line. Please tell me how t…

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## [MQTT topic from .env](https://discourse.nodered.org/t/mqtt-topic-from-env/86924)

<div class="topic-metadata">

**Author:** [@bigbean17](https://discourse.nodered.org/u/bigbean17)\
**Replies:** 6\
**Last updated:** [5 April 2024 02:31 UTC](https://discourse.nodered.org/t/mqtt-topic-from-env/86924 "2024-04-05T02:31:06Z")

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Hi, I have a device containing many sensors, the sensors will publish their data to the topic such as "/device\_1/temperature". The problem is that I will have many devices with different id such as "device\_2, device\_n"…

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## [Looking for input, pointers or information in general](https://discourse.nodered.org/t/looking-for-input-pointers-or-information-in-general/86980)

<div class="topic-metadata">

**Author:** [@Humhum](https://discourse.nodered.org/u/Humhum)\
**Replies:** 1\
**Last updated:** [5 April 2024 01:59 UTC](https://discourse.nodered.org/t/looking-for-input-pointers-or-information-in-general/86980 "2024-04-05T01:59:36Z")

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Hello everyone, first of all: this is my first projekt using node-red and my programming skills are ... well I can edit scripts to (maybe) do my bidding, but not create one myself. Here in Germany it's called "gefährlic…

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## [Send csv to a line chart](https://discourse.nodered.org/t/send-csv-to-a-line-chart/87011)

<div class="topic-metadata">

**Author:** [@AleksDeco](https://discourse.nodered.org/u/AleksDeco)\
**Replies:** 1\
**Last updated:** [4 April 2024 20:30 UTC](https://discourse.nodered.org/t/send-csv-to-a-line-chart/87011 "2024-04-04T20:30:51Z")

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Can someone tell me how can I pass now that .csv file and make a line chart with those values? can't find what function has to be writen. I guess somehow I have to define what goes on Y and what on X axies?

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## [\[FYI\]Using encoding binary didn't give expected result with file write node](https://discourse.nodered.org/t/fyi-using-encoding-binary-didnt-give-expected-result-with-file-write-node/87012)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 3\
**Last updated:** [4 April 2024 19:58 UTC](https://discourse.nodered.org/t/fyi-using-encoding-binary-didnt-give-expected-result-with-file-write-node/87012 "2024-04-04T19:58:34Z")

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I was using the file write node to save a file (Linux system) and because I was feeding it with a buffer payload, I thought that choosing binary as the encoding was the right thing to do. But it wasn't - the saved file …

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## [Install new nodes in NodeRed without internet connection](https://discourse.nodered.org/t/install-new-nodes-in-nodered-without-internet-connection/86986)

<div class="topic-metadata">

**Author:** [@TadeoRodriguez](https://discourse.nodered.org/u/TadeoRodriguez)\
**Replies:** 9\
**Last updated:** [4 April 2024 18:39 UTC](https://discourse.nodered.org/t/install-new-nodes-in-nodered-without-internet-connection/86986 "2024-04-04T18:39:38Z")

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Good afternoon everyone! I have an environment with NodeRed and I need to install the packages: node-red-contrib-opcua and node-red-contrib-s7. Is it possible to add these modules in the environment without internet? a…

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## [Serial connection to CAS PD-II Scale](https://discourse.nodered.org/t/serial-connection-to-cas-pd-ii-scale/86976)

<div class="topic-metadata">

**Author:** [@grodgers](https://discourse.nodered.org/u/grodgers)\
**Replies:** 12\
**Last updated:** [4 April 2024 16:35 UTC](https://discourse.nodered.org/t/serial-connection-to-cas-pd-ii-scale/86976 "2024-04-04T16:35:10Z")

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Hello awesome Node-RED community, I'm looking for general guidance here because I realize every serial device will be slightly different. I'm just not sure if I'm in the correct ballpark in my approach. My environment/…

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## [Dashboard-2 ui-notification msg.topic](https://discourse.nodered.org/t/dashboard-2-ui-notification-msg-topic/87001)

<div class="topic-metadata">

**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\
**Replies:** 3\
**Last updated:** [4 April 2024 13:29 UTC](https://discourse.nodered.org/t/dashboard-2-ui-notification-msg-topic/87001 "2024-04-04T13:29:51Z")

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A quick play seemed to show that msg.topic (used to provide a "title" in D1) is not currently included, just confirming? And a supplementary question, is there a way to force a newline in ui-notification? Everything I t…

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## [Text input time picker not showing time in dashboard until refreshed](https://discourse.nodered.org/t/text-input-time-picker-not-showing-time-in-dashboard-until-refreshed/86998)

<div class="topic-metadata">

**Author:** [@robertobuti](https://discourse.nodered.org/u/robertobuti)\
**Replies:** 0\
**Last updated:** [4 April 2024 10:07 UTC](https://discourse.nodered.org/t/text-input-time-picker-not-showing-time-in-dashboard-until-refreshed/86998 "2024-04-04T10:07:54Z")

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Hello, i'm using a text input node as time picker, the injected value is not show until browser is not refreshed. Classic --:-- value is showed, also if payload has correctly injected. Same value in text field work co…

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## [Obtain payload data](https://discourse.nodered.org/t/obtain-payload-data/86950)

<div class="topic-metadata">

**Author:** [@yoshiangel](https://discourse.nodered.org/u/yoshiangel)\
**Replies:** 10\
**Last updated:** [4 April 2024 01:15 UTC](https://discourse.nodered.org/t/obtain-payload-data/86950 "2024-04-04T01:15:51Z")

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I'm having trouble getting data from my payload, but specifically I want just a few pieces of data \["18,57,0,0.000000,0,6569,0.000000,19,55,0,0,0,0,0\\n","18,57,0,0.000000,0,6570,0.000000,19,55,0,0,0,0,0\\n","18,57,0,0.00…

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## [Problem with a script](https://discourse.nodered.org/t/problem-with-a-script/86975)

<div class="topic-metadata">

**Author:** [@ivanpesenti](https://discourse.nodered.org/u/ivanpesenti)\
**Replies:** 4\
**Last updated:** [3 April 2024 17:45 UTC](https://discourse.nodered.org/t/problem-with-a-script/86975 "2024-04-03T17:45:59Z")

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\<div class="container"\> \<div class="circle" data-degree="20" data-color="#ff2972"\> \<h2 class="number"\>\<span\>%\</span\>\</h2\> \</div\> \<script\> document.addEventListener("DOMContentLoaded", fun…

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## [Using variable to access Array](https://discourse.nodered.org/t/using-variable-to-access-array/86971)

<div class="topic-metadata">

**Author:** [@zachMtech](https://discourse.nodered.org/u/zachMtech)\
**Replies:** 5\
**Last updated:** [3 April 2024 15:54 UTC](https://discourse.nodered.org/t/using-variable-to-access-array/86971 "2024-04-03T15:54:12Z")

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I'm working with Node-RED and using JSONata for expression handling. In my setup, I have an array named SMT where each element contains a node named item . Additionally, I have a variable named count that I intend to use…

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## [Backup and restore Node-red](https://discourse.nodered.org/t/backup-and-restore-node-red/86856)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 13\
**Last updated:** [2 April 2024 22:49 UTC](https://discourse.nodered.org/t/backup-and-restore-node-red/86856 "2024-04-02T22:49:54Z")

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Can anyone confirm / improve on these backup and restore instructions? Linux Backup Assuming that everything for your Node-red installation (flows, file based context, static content, any external scripts run from exec,…

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## [ioBroker Datapoints Read / Write in a function-Node in javascript How to do?](https://discourse.nodered.org/t/iobroker-datapoints-read-write-in-a-function-node-in-javascript-how-to-do/86500)

<div class="topic-metadata">

**Author:** [@Torsten02](https://discourse.nodered.org/u/Torsten02)\
**Replies:** 5\
**Last updated:** [2 April 2024 20:54 UTC](https://discourse.nodered.org/t/iobroker-datapoints-read-write-in-a-function-node-in-javascript-how-to-do/86500 "2024-04-02T20:54:23Z")

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Hello, all attempts to read or write the data points from the ioBroker within a function node have failed so far. The "Node ioBroker IN/OUT" works of course but the same in a "function Node" in javascript does not work…

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## [How can I recreate this message structure in an inject node?](https://discourse.nodered.org/t/how-can-i-recreate-this-message-structure-in-an-inject-node/86947)

<div class="topic-metadata">

**Author:** [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Replies:** 2\
**Last updated:** [2 April 2024 18:42 UTC](https://discourse.nodered.org/t/how-can-i-recreate-this-message-structure-in-an-inject-node/86947 "2024-04-02T18:42:53Z")

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{ "payload": { "brightness": 35, "color\_temp": 360, "state": "ON", "transition": 2 }, "wled": "99", "holiday": "none", "level": 35, "statemsg": "off", "garage": 1, "kitchen": "99", "lutron": 100, "\_msgi…

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## [Node-red freezes when i read from PLC](https://discourse.nodered.org/t/node-red-freezes-when-i-read-from-plc/86630)

<div class="topic-metadata">

**Author:** [@Felipesr](https://discourse.nodered.org/u/Felipesr)\
**Replies:** 16\
**Last updated:** [2 April 2024 14:13 UTC](https://discourse.nodered.org/t/node-red-freezes-when-i-read-from-plc/86630 "2024-04-02T14:13:43Z")

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im working on a server that reads values froma PLC and dumps them in a simple database. It was working fine but from a day to another it suddenly stops working, node-red freezes when i connect to the PLC and reads no val…

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## [How to Calculate Power (P) from Voltage and Current Values in Node-RED?](https://discourse.nodered.org/t/how-to-calculate-power-p-from-voltage-and-current-values-in-node-red/86936)

<div class="topic-metadata">

**Author:** [@noctis-61](https://discourse.nodered.org/u/noctis-61)\
**Replies:** 6\
**Last updated:** [2 April 2024 13:09 UTC](https://discourse.nodered.org/t/how-to-calculate-power-p-from-voltage-and-current-values-in-node-red/86936 "2024-04-02T13:09:41Z")

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Hello, I'm working on a project in Node-RED where I receive voltage from a ADS1115 and current from a ina219. I want to calculate the power (P) using these values, but i dont know how. However, when I try to add both i…

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## [Two inputs in a node function](https://discourse.nodered.org/t/two-inputs-in-a-node-function/86891)

<div class="topic-metadata">

**Author:** [@satkey3](https://discourse.nodered.org/u/satkey3)\
**Replies:** 11\
**Last updated:** [2 April 2024 11:43 UTC](https://discourse.nodered.org/t/two-inputs-in-a-node-function/86891 "2024-04-02T11:43:01Z")

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Hello. I have two inputs in a node function that input random numerical data read from a solar inverter. PV is the instant production of the inverter and Grid is the consumption from the network. Through that function, …

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## [Node-red-node-openweathermap - 5 day forecast NO DATA, current forecast DATA OK](https://discourse.nodered.org/t/node-red-node-openweathermap-5-day-forecast-no-data-current-forecast-data-ok/86926)

<div class="topic-metadata">

**Author:** [@ramoun](https://discourse.nodered.org/u/ramoun)\
**Replies:** 3\
**Last updated:** [2 April 2024 11:27 UTC](https://discourse.nodered.org/t/node-red-node-openweathermap-5-day-forecast-no-data-current-forecast-data-ok/86926 "2024-04-02T11:27:35Z")

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Hi, I'm sort of migrating from Openhab i.e. creating new rules in nodered, and migrating the broken ones. In "node-red-node-openweathermap" "current weather" returns data, but "5 day forecast" returns no data. Gener…

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## [Node-Red stops working and needs to be restarted](https://discourse.nodered.org/t/node-red-stops-working-and-needs-to-be-restarted/86866)

<div class="topic-metadata">

**Author:** [@badflash](https://discourse.nodered.org/u/badflash)\
**Replies:** 18\
**Last updated:** [1 April 2024 21:58 UTC](https://discourse.nodered.org/t/node-red-stops-working-and-needs-to-be-restarted/86866 "2024-04-01T21:58:29Z")

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After a few hours, Node-Red stops communicating, and I need to re-start it. Just re-connecting to the web page doesn't fix it. Is there a setting to keep it running? When I do restart it, it will often change the setpoi…

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## [Trouble Integrating Philips HUE with node-red-contrib-huemagic on Updated Node-RED & Node.js](https://discourse.nodered.org/t/trouble-integrating-philips-hue-with-node-red-contrib-huemagic-on-updated-node-red-node-js/86882)

<div class="topic-metadata">

**Author:** [@Steinspiel](https://discourse.nodered.org/u/Steinspiel)\
**Replies:** 6\
**Last updated:** [1 April 2024 18:49 UTC](https://discourse.nodered.org/t/trouble-integrating-philips-hue-with-node-red-contrib-huemagic-on-updated-node-red-node-js/86882 "2024-04-01T18:49:56Z")

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Hey, I've installed Node-RED alongside openHab on a Raspberry Pi. For Philips HUE, I was using "node-red-contrib-huemagic 4.2.2". At some point, I noticed that the HUE Bridge / HUE Lamps stopped working. I'm not sure i…

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## [Robust remote update procedure and best practices?](https://discourse.nodered.org/t/robust-remote-update-procedure-and-best-practices/86894)

<div class="topic-metadata">

**Author:** [@raspberrydev12](https://discourse.nodered.org/u/raspberrydev12)\
**Replies:** 2\
**Last updated:** [1 April 2024 16:55 UTC](https://discourse.nodered.org/t/robust-remote-update-procedure-and-best-practices/86894 "2024-04-01T16:55:44Z")

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Hey there! I would really appreciate it if the experts could give me a sanity check on this one. I have a small fleet of about 30 devices deployed remotely. They are running a node-red project that is tracking a github…

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## [Can't see device-monitor node after install in Node Red](https://discourse.nodered.org/t/cant-see-device-monitor-node-after-install-in-node-red/86915)

<div class="topic-metadata">

**Author:** [@efelmer](https://discourse.nodered.org/u/efelmer)\
**Replies:** 4\
**Last updated:** [1 April 2024 16:16 UTC](https://discourse.nodered.org/t/cant-see-device-monitor-node-after-install-in-node-red/86915 "2024-04-01T16:16:18Z")

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I have installed the following node into my working NR server (v3.1.3) via Palette -\> Install, but it doesn't show up in the list of available nodes ot use in workflow. Restarted NR and the host server, refreshed browser…

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## [Mqtt value to domoticz](https://discourse.nodered.org/t/mqtt-value-to-domoticz/86878)

<div class="topic-metadata">

**Author:** [@nodouser](https://discourse.nodered.org/u/nodouser)\
**Replies:** 10\
**Last updated:** [1 April 2024 12:48 UTC](https://discourse.nodered.org/t/mqtt-value-to-domoticz/86878 "2024-04-01T12:48:26Z")

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I've been searching for a while too, but I can't figure it out. I've checked the websites, but they have predefined values. I want to send a value from MQTT Node-RED using an HTTP rule or another way to Domoticz. The va…

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## [Raspberry PI 5 Bookworm - PiPlates](https://discourse.nodered.org/t/raspberry-pi-5-bookworm-piplates/84759)

<div class="topic-metadata">

**Author:** [@HS10](https://discourse.nodered.org/u/HS10)\
**Replies:** 13\
**Last updated:** [1 April 2024 12:13 UTC](https://discourse.nodered.org/t/raspberry-pi-5-bookworm-piplates/84759 "2024-04-01T12:13:19Z")

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I would like to identify folks successfully running Raspberry PI 5 Bookworm with PiPlates. Have some difficulty getting my project running again. Thanks

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## [How to re-deploy a single flowchart？](https://discourse.nodered.org/t/how-to-re-deploy-a-single-flowchart/86900)

<div class="topic-metadata">

**Author:** [@Yesung](https://discourse.nodered.org/u/Yesung)\
**Replies:** 3\
**Last updated:** [1 April 2024 06:55 UTC](https://discourse.nodered.org/t/how-to-re-deploy-a-single-flowchart/86900 "2024-04-01T06:55:29Z")

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If I have multiple flowcharts, how can I just redeploy and execute a single one? I noticed that if you choose Deploy All, all flowcharts will be re-executed, But I use one flowchart to represent one device's data colle…

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## [Node red wont start - INFO: Service Node-RED exited with code 1 (by signal 0)](https://discourse.nodered.org/t/node-red-wont-start-info-service-node-red-exited-with-code-1-by-signal-0/86906)

<div class="topic-metadata">

**Author:** [@MankiniChykan](https://discourse.nodered.org/u/MankiniChykan)\
**Replies:** 1\
**Last updated:** [1 April 2024 06:24 UTC](https://discourse.nodered.org/t/node-red-wont-start-info-service-node-red-exited-with-code-1-by-signal-0/86906 "2024-04-01T06:24:05Z")

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My Error Log below: I HAVE A FEELING IT HAS SOMETHING TO DO WITH THIS NODE NOT BEING SETUP CORRECTLY. Node Red would not deploy the node when I was editing it. I run Node Red on a Homesassistant Blue Odroid N2+ 1 Apr 1…

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## [How can I create a graph showing all the data obtained or the data obtained in a week in the red node using blynk? ](https://discourse.nodered.org/t/how-can-i-create-a-graph-showing-all-the-data-obtained-or-the-data-obtained-in-a-week-in-the-red-node-using-blynk/86901)

<div class="topic-metadata">

**Author:** [@yoshiangel](https://discourse.nodered.org/u/yoshiangel)\
**Replies:** 0\
**Last updated:** [1 April 2024 03:37 UTC](https://discourse.nodered.org/t/how-can-i-create-a-graph-showing-all-the-data-obtained-or-the-data-obtained-in-a-week-in-the-red-node-using-blynk/86901 "2024-04-01T03:37:08Z")

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I am getting my data through my esp32, there are about 8 types of data (temperature, humidity, current, voltage, GPS, etc) and once sent I want to display them in a histogram in my node red. I don’t want it to be shown i…

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## [How is data compared dynamically?](https://discourse.nodered.org/t/how-is-data-compared-dynamically/86877)

<div class="topic-metadata">

**Author:** [@tsuratolya](https://discourse.nodered.org/u/tsuratolya)\
**Replies:** 11\
**Last updated:** [1 April 2024 02:21 UTC](https://discourse.nodered.org/t/how-is-data-compared-dynamically/86877 "2024-04-01T02:21:15Z")

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Hello. I need to send data: which comes constantly 1 time per second and arrives 1 per second (let's assume that this voltage is the blue arrow) and compare with what I set using the slider (green arrow), that is, a dyna…

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