# Latest

**URL:** https://discourse.nodered.org/latest.md?page=594

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

**Page:** 595

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## [Problem to open with excel with csv file generated from nodered](https://discourse.nodered.org/t/problem-to-open-with-excel-with-csv-file-generated-from-nodered/60887)

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**Author:** [@bertaud](https://discourse.nodered.org/u/bertaud)\
**Replies:** 3\
**Last updated:** [6 April 2022 16:44 UTC](https://discourse.nodered.org/t/problem-to-open-with-excel-with-csv-file-generated-from-nodered/60887 "2022-04-06T16:44:07Z")

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i have a problem with a flow. I use a file node to save a csv content on disk i use utf8 encoding if i open the file with notepad the content is ok and character with accent are well displayed. if i open with excel …

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## [Shared Node-RED development on app server](https://discourse.nodered.org/t/shared-node-red-development-on-app-server/60846)

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**Author:** [@SHAMOO](https://discourse.nodered.org/u/SHAMOO)\
**Replies:** 3\
**Last updated:** [6 April 2022 15:21 UTC](https://discourse.nodered.org/t/shared-node-red-development-on-app-server/60846 "2022-04-06T15:21:05Z")

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Hi folks, We're making headway on moving PLC programming, MQTT, and Node-RED operations to an app server but I'm not quite understanding part of the Node-RED instructions. The paragraph here has me a little tripped up- h…

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## [Put a navigation button with payload on the right side of titlebar](https://discourse.nodered.org/t/put-a-navigation-button-with-payload-on-the-right-side-of-titlebar/60885)

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**Author:** [@OrangeRaspberry](https://discourse.nodered.org/u/OrangeRaspberry)\
**Replies:** 0\
**Last updated:** [6 April 2022 14:43 UTC](https://discourse.nodered.org/t/put-a-navigation-button-with-payload-on-the-right-side-of-titlebar/60885 "2022-04-06T14:43:42Z")

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I have an idea to implement this function after I found someone's solution from forum. May be a little bit stupid. :joy: I creat a template node link to a group.See below code., \<style\> #my-refresh-button { backgro…

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## [Remove manuel line break from string for msg.payload and switch](https://discourse.nodered.org/t/remove-manuel-line-break-from-string-for-msg-payload-and-switch/60835)

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**Author:** [@LeonO](https://discourse.nodered.org/u/LeonO)\
**Replies:** 2\
**Last updated:** [6 April 2022 13:06 UTC](https://discourse.nodered.org/t/remove-manuel-line-break-from-string-for-msg-payload-and-switch/60835 "2022-04-06T13:06:37Z")

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Hello everyone, I am currently working on a flow and I have now encountered the problem that the "exec" function gives me a string that I cannot process in the switch. I would like to use the function == in the switch.…

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## [TypeError: Invalid character in header content \["getKeyByValue"\]](https://discourse.nodered.org/t/typeerror-invalid-character-in-header-content-getkeybyvalue/60829)

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**Author:** [@Radstake](https://discourse.nodered.org/u/Radstake)\
**Replies:** 10\
**Last updated:** [6 April 2022 13:01 UTC](https://discourse.nodered.org/t/typeerror-invalid-character-in-header-content-getkeybyvalue/60829 "2022-04-06T13:01:54Z")

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Hi, When I'm setting a header in the http out, I get this fatal error. TypeError: Invalid character in header content \["getKeyByValue"\] That wasnt there before, maybe it started after a nodejs upgrade. Some help in t…

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## [I am very new to Node Red, have a question about Sliders](https://discourse.nodered.org/t/i-am-very-new-to-node-red-have-a-question-about-sliders/60853)

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**Author:** [@mikhael47](https://discourse.nodered.org/u/mikhael47)\
**Replies:** 2\
**Last updated:** [6 April 2022 12:56 UTC](https://discourse.nodered.org/t/i-am-very-new-to-node-red-have-a-question-about-sliders/60853 "2022-04-06T12:56:24Z")

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I am looking to take a slider and use it to adjust the value of the output of a dht22 humidity sensor. The Humidity value is stored in msg.humidity and I would like the interface to allow me to "calibrate" the humidity …

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## [Manage Palette Is Missing any solution](https://discourse.nodered.org/t/manage-palette-is-missing-any-solution/60875)

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**Author:** [@bilel](https://discourse.nodered.org/u/bilel)\
**Replies:** 6\
**Last updated:** [6 April 2022 12:37 UTC](https://discourse.nodered.org/t/manage-palette-is-missing-any-solution/60875 "2022-04-06T12:37:06Z")

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## [Npm ERR! code ELIFECYCLE - Error: read ECONNRESET](https://discourse.nodered.org/t/npm-err-code-elifecycle-error-read-econnreset/60633)

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**Author:** [@energyplot](https://discourse.nodered.org/u/energyplot)\
**Replies:** 5\
**Last updated:** [6 April 2022 11:40 UTC](https://discourse.nodered.org/t/npm-err-code-elifecycle-error-read-econnreset/60633 "2022-04-06T11:40:35Z")

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I'm receiving this error and node-red is stopping every couple hours. \[red\] Uncaught Exception: Error: read ECONNRESET at TCP.onStreamRead (internal/stream\_base\_commons.js:111:27) npm ERR! code ELIFECYCLE npm ERR! e…

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## [Reference function within another function node](https://discourse.nodered.org/t/reference-function-within-another-function-node/60870)

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**Author:** [@Ashfaak](https://discourse.nodered.org/u/Ashfaak)\
**Replies:** 2\
**Last updated:** [6 April 2022 11:32 UTC](https://discourse.nodered.org/t/reference-function-within-another-function-node/60870 "2022-04-06T11:32:42Z")

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Hi Consider 2 function nodes, A and B. Is it possible to reference a function written in A from node B? I've tried searching for "referencing functions" and "scope of functions in function node". Example: \[ { …

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## [Cant download dashboard on my raspberry pi3](https://discourse.nodered.org/t/cant-download-dashboard-on-my-raspberry-pi3/60868)

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**Author:** [@bilel](https://discourse.nodered.org/u/bilel)\
**Replies:** 1\
**Last updated:** [6 April 2022 09:59 UTC](https://discourse.nodered.org/t/cant-download-dashboard-on-my-raspberry-pi3/60868 "2022-04-06T09:59:40Z")

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## [Intermittent error 403 with Email node](https://discourse.nodered.org/t/intermittent-error-403-with-email-node/60324)

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**Author:** [@Ashfaak](https://discourse.nodered.org/u/Ashfaak)\
**Replies:** 2\
**Last updated:** [6 April 2022 09:58 UTC](https://discourse.nodered.org/t/intermittent-error-403-with-email-node/60324 "2022-04-06T09:58:40Z")

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Hi NR v2.2.2 node-red-node-email 1.14.0 I've been getting intermittent faults sending emails recently. ~3/10 nearly identical emails fail. Not sure what the cause is. Caught the error using the catch node. As a workar…

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## [One-node-room-manager and thermostat](https://discourse.nodered.org/t/one-node-room-manager-and-thermostat/60866)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 0\
**Last updated:** [6 April 2022 08:51 UTC](https://discourse.nodered.org/t/one-node-room-manager-and-thermostat/60866 "2022-04-06T08:51:37Z")

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The One-Node-Room-Manger has 54 outputs. This is all you need to know about your room. All you must do, is connecting sensors and design your dashboards. Included is a picture of my demo/test-Dashboard: EGWZ = ground…

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## [Nodered offline and i need to use date time range picker from dashboard ui](https://discourse.nodered.org/t/nodered-offline-and-i-need-to-use-date-time-range-picker-from-dashboard-ui/60775)

<div class="topic-metadata">

**Author:** [@bertaud](https://discourse.nodered.org/u/bertaud)\
**Replies:** 11\
**Last updated:** [6 April 2022 07:59 UTC](https://discourse.nodered.org/t/nodered-offline-and-i-need-to-use-date-time-range-picker-from-dashboard-ui/60775 "2022-04-06T07:59:24Z")

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I m in a nodered server without inernet connexion (requirement). I wan t to set up date time range picker in my nodered dashboard https://www.daterangepicker.com/ I have tried date time range picker package with inter…

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## [Image processing](https://discourse.nodered.org/t/image-processing/60860)

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**Author:** [@Nam](https://discourse.nodered.org/u/Nam)\
**Replies:** 0\
**Last updated:** [6 April 2022 06:04 UTC](https://discourse.nodered.org/t/image-processing/60860 "2022-04-06T06:04:40Z")

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Does Node-red have any module that can help with object recognition image processing? For example, the object is square, round, triangle, by USB camera, can anyone help me, thank you very much, I plan to get the image po…

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## [Modbus tcp of Siemens s7-12000](https://discourse.nodered.org/t/modbus-tcp-of-siemens-s7-12000/60710)

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**Author:** [@Nam](https://discourse.nodered.org/u/Nam)\
**Replies:** 2\
**Last updated:** [6 April 2022 06:02 UTC](https://discourse.nodered.org/t/modbus-tcp-of-siemens-s7-12000/60710 "2022-04-06T06:02:08Z")

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Can anyone help me with some examples to communicate modbus tcp between two PLCs? Thank you very much

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## [Inject node with date](https://discourse.nodered.org/t/inject-node-with-date/60858)

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**Author:** [@pool](https://discourse.nodered.org/u/pool)\
**Replies:** 1\
**Last updated:** [6 April 2022 05:35 UTC](https://discourse.nodered.org/t/inject-node-with-date/60858 "2022-04-06T05:35:24Z")

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I am using a nordpool api to read the prices from Nordpool. The readme tells "Its also possible to inject a msg.date to get price from a specific date" How? msg.payload.date then date? I think I need the date in ms li…

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## [How can I specify the message path to use reduce on multiple arrays to get an average value?](https://discourse.nodered.org/t/how-can-i-specify-the-message-path-to-use-reduce-on-multiple-arrays-to-get-an-average-value/60836)

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**Author:** [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Replies:** 6\
**Last updated:** [5 April 2022 19:57 UTC](https://discourse.nodered.org/t/how-can-i-specify-the-message-path-to-use-reduce-on-multiple-arrays-to-get-an-average-value/60836 "2022-04-05T19:57:08Z")

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I would like to isolate state and then output an average of all the values.

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## [How can I compare MQTT node value to a normal input number value?](https://discourse.nodered.org/t/how-can-i-compare-mqtt-node-value-to-a-normal-input-number-value/60841)

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**Author:** [@emnabk\_12](https://discourse.nodered.org/u/emnabk_12)\
**Replies:** 10\
**Last updated:** [5 April 2022 19:19 UTC](https://discourse.nodered.org/t/how-can-i-compare-mqtt-node-value-to-a-normal-input-number-value/60841 "2022-04-05T19:19:40Z")

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Hello all, How am I supposed to compare these two values, is it possible to use the switch node like that?

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## [View and process Pylontech battery data](https://discourse.nodered.org/t/view-and-process-pylontech-battery-data/60657)

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**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\
**Replies:** 15\
**Last updated:** [5 April 2022 19:10 UTC](https://discourse.nodered.org/t/view-and-process-pylontech-battery-data/60657 "2022-04-05T19:10:25Z")

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I connected today my Pylontech batteries via its console port into my Raspberry via USB. This allows me to query them via the serial node. Here is what the command looks like in PWR terminal emulation under Linux: F…

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## [Global Variables i.e V1 V2 have the same content](https://discourse.nodered.org/t/global-variables-i-e-v1-v2-have-the-same-content/60844)

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**Author:** [@Discourse01](https://discourse.nodered.org/u/Discourse01)\
**Replies:** 0\
**Last updated:** [5 April 2022 18:40 UTC](https://discourse.nodered.org/t/global-variables-i-e-v1-v2-have-the-same-content/60844 "2022-04-05T18:40:08Z")

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//msg.payload format = { voltages: , temps: , SOC : , SOH:, STATUS: ,PACK\_V : , PACK\_I : , BTEMP:} ; Npacks = global.get("No\_of\_packs") ; data = msg.payload ; flow.set("data2",data); acsii = 97 ; var pack = {}…

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## [Concatenation inside formatting](https://discourse.nodered.org/t/concatenation-inside-formatting/60827)

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**Author:** [@FeliceM](https://discourse.nodered.org/u/FeliceM)\
**Replies:** 2\
**Last updated:** [5 April 2022 12:52 UTC](https://discourse.nodered.org/t/concatenation-inside-formatting/60827 "2022-04-05T12:52:38Z")

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Not being a coder I lack some skills.... How to you concatenate a variable with a string in this context (function). I am trying to concatenate VTS which is a float with VC1 which is a string VTS=(k\[9\]) msg.payload =…

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## [Changing sensor inputs](https://discourse.nodered.org/t/changing-sensor-inputs/60821)

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**Author:** [@Surefire01](https://discourse.nodered.org/u/Surefire01)\
**Replies:** 7\
**Last updated:** [5 April 2022 11:42 UTC](https://discourse.nodered.org/t/changing-sensor-inputs/60821 "2022-04-05T11:42:22Z")

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Chaps. Looking to make my Node-Red heating flow more flexible. Currently a hallway Sonoff sensor provides MQTT temperature data to my flow which then controls my central heating. I would like to add a second sensor whic…

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## [Gmail "Email-in" node no longer working with username&password](https://discourse.nodered.org/t/gmail-email-in-node-no-longer-working-with-username-password/60683)

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**Author:** [@PedanticPete](https://discourse.nodered.org/u/PedanticPete)\
**Replies:** 12\
**Last updated:** [5 April 2022 11:02 UTC](https://discourse.nodered.org/t/gmail-email-in-node-no-longer-working-with-username-password/60683 "2022-04-05T11:02:33Z")

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Hi, I have been checking my gmail fine until today ... found this ... " To help keep your account secure, starting May 30, 2022 , ​​Google will no longer support the use of third-party apps or devices which ask you to s…

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## [UI inputs to control timer](https://discourse.nodered.org/t/ui-inputs-to-control-timer/60528)

<div class="topic-metadata">

**Author:** [@rossjtlambert](https://discourse.nodered.org/u/rossjtlambert)\
**Replies:** 3\
**Last updated:** [5 April 2022 10:22 UTC](https://discourse.nodered.org/t/ui-inputs-to-control-timer/60528 "2022-04-05T10:22:54Z")

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Hi, I have been working on controlling a pump to teach myself how to use node-red. So far I can turn the pump on/off, change direction and control the speed all through the dashboard. I would really like to be able to t…

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## [Dashboard sidebar (icons only), icon not clickable](https://discourse.nodered.org/t/dashboard-sidebar-icons-only-icon-not-clickable/60814)

<div class="topic-metadata">

**Author:** [@kkuula](https://discourse.nodered.org/u/kkuula)\
**Replies:** 0\
**Last updated:** [5 April 2022 06:50 UTC](https://discourse.nodered.org/t/dashboard-sidebar-icons-only-icon-not-clickable/60814 "2022-04-05T06:50:46Z")

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Hello, I configured my dashboard so that side bar is always shown but icons only. How ever the icon itself is not clickable, nothing happens. But the icon's background is doing the actual redirect -\> I need to try to c…

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## [Autocomplete also for empty Input elements](https://discourse.nodered.org/t/autocomplete-also-for-empty-input-elements/60800)

<div class="topic-metadata">

**Author:** [@Hypnos](https://discourse.nodered.org/u/Hypnos)\
**Replies:** 1\
**Last updated:** [5 April 2022 05:58 UTC](https://discourse.nodered.org/t/autocomplete-also-for-empty-input-elements/60800 "2022-04-05T05:58:06Z")

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I just added autocomplete to a node in a typed input field. Unfortunately, I noticed that the feature only works if the user enters at least one letter. It would be great if this could also work when the field is empty…

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## [Node id generation formula](https://discourse.nodered.org/t/node-id-generation-formula/60806)

<div class="topic-metadata">

**Author:** [@miziagui](https://discourse.nodered.org/u/miziagui)\
**Replies:** 0\
**Last updated:** [5 April 2022 05:18 UTC](https://discourse.nodered.org/t/node-id-generation-formula/60806 "2022-04-05T05:18:02Z")

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Guys, I was looking into the formula to generate the Node Id at the Editor, and i saw that its a simple math operation with random. So i thought that if we changed this formula to be time based (or orderable), like uli…

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## [Manage multiple devices with 4 sensors each](https://discourse.nodered.org/t/manage-multiple-devices-with-4-sensors-each/60802)

<div class="topic-metadata">

**Author:** [@el\_pablo](https://discourse.nodered.org/u/el_pablo)\
**Replies:** 1\
**Last updated:** [5 April 2022 01:20 UTC](https://discourse.nodered.org/t/manage-multiple-devices-with-4-sensors-each/60802 "2022-04-05T01:20:53Z")

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Hi Guys, I need to receive data from multiple devices (classroom). Each student device has a temperature, humidity, distance and an encoder. I want to have a drop-down list which shows all the devices. When selecting a…

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## [\[node-red-contrib-uibuilder\] Bug fix release v5.0.1](https://discourse.nodered.org/t/node-red-contrib-uibuilder-bug-fix-release-v5-0-1/60801)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 0\
**Last updated:** [5 April 2022 00:24 UTC](https://discourse.nodered.org/t/node-red-contrib-uibuilder-bug-fix-release-v5-0-1/60801 "2022-04-05T00:24:59Z")

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Please update to this release - it fixes some issues found when you don't have a uibuilder property object in settings.js.

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## [Node with hidden wire --\> X output node messages](https://discourse.nodered.org/t/node-with-hidden-wire-x-output-node-messages/58316)

<div class="topic-metadata">

**Author:** [@bigman](https://discourse.nodered.org/u/bigman)\
**Replies:** 8\
**Last updated:** [4 April 2022 23:21 UTC](https://discourse.nodered.org/t/node-with-hidden-wire-x-output-node-messages/58316 "2022-04-04T23:21:45Z")

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Hi ! Sometimes, i have some bug with the wire of some nodes. I use the latest version NR 2.2 The output wire of the node multiply the message (here 3 wires) I don't know how it's happen (merging, deploy, copy paste .…

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