# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=158

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

**Page:** 159

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## [Use only one join-wait](https://discourse.nodered.org/t/use-only-one-join-wait/82993)

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**Author:** [@themsk](https://discourse.nodered.org/u/themsk)\
**Replies:** 2\
**Last updated:** [18 November 2023 18:10 UTC](https://discourse.nodered.org/t/use-only-one-join-wait/82993 "2023-11-18T18:10:26Z")

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Hi guys. I have a flow where i use two join-wait and i like to minimalize the code and use only one join-wait if its possible. the flow is for persons arrival at home. this is the flow code: \[{"id":"b2a1d7392b12278d",…

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## [Error: Arduino Serial port closed when connecting to arduino Uno](https://discourse.nodered.org/t/error-arduino-serial-port-closed-when-connecting-to-arduino-uno/82934)

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**Author:** [@viniciusleite](https://discourse.nodered.org/u/viniciusleite)\
**Replies:** 6\
**Last updated:** [18 November 2023 17:51 UTC](https://discourse.nodered.org/t/error-arduino-serial-port-closed-when-connecting-to-arduino-uno/82934 "2023-11-18T17:51:59Z")

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I got this error after starting node-red, deploying a flow where I send true on the payload of a message to arduino Digital pin 9 and then changing the pin to 12 and deploying again. I'm on an Ubuntu 22.04 Virtual Machi…

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## [Right Axis in the Time plot](https://discourse.nodered.org/t/right-axis-in-the-time-plot/82989)

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**Author:** [@Panda](https://discourse.nodered.org/u/Panda)\
**Replies:** 2\
**Last updated:** [18 November 2023 11:39 UTC](https://discourse.nodered.org/t/right-axis-in-the-time-plot/82989 "2023-11-18T11:39:47Z")

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Hey guys, I'm trying to use the right Axis in my time plot. But when I use msg.axes I'll only get the error "...must be an array or null..." I want to record my internet speed and ping. How can someone help me to use…

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## [Node-red login with google oauth2.0 help](https://discourse.nodered.org/t/node-red-login-with-google-oauth2-0-help/82927)

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**Author:** [@ArcanePhysics](https://discourse.nodered.org/u/ArcanePhysics)\
**Replies:** 5\
**Last updated:** [18 November 2023 10:37 UTC](https://discourse.nodered.org/t/node-red-login-with-google-oauth2-0-help/82927 "2023-11-18T10:37:16Z")

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Hello, I am, trying to set up my node-red with google oauth login Following this page Securing Node-RED : Node-RED section OAuth/OpenID based authentication I have installed passport-google-oauth20 and filled the co…

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## [What am I doing wrong?](https://discourse.nodered.org/t/what-am-i-doing-wrong/82982)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 3\
**Last updated:** [18 November 2023 09:46 UTC](https://discourse.nodered.org/t/what-am-i-doing-wrong/82982 "2023-11-18T09:46:47Z")

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Why is the top inject not being routed to top debug node? \[{"id":"c82cdbdd3cd2858e","type":"inject","z":"d760e2801b9ca31b","name":"t","props":\[{"p":"payload"},{"p":"payload.init","v":"true","vt":"bool"}\],"repeat":""…

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## [Array to string with delimiting characters](https://discourse.nodered.org/t/array-to-string-with-delimiting-characters/82980)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 6\
**Last updated:** [18 November 2023 09:38 UTC](https://discourse.nodered.org/t/array-to-string-with-delimiting-characters/82980 "2023-11-18T09:38:07Z")

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Hi, i am stuck at one point and unable to get to solution. I am almost there (or am I?). i have an array output coming from mysql query, which i need to convert to a string with a semicolon between each string. I can do…

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## [Code function for change format data from Kepware to Power BI](https://discourse.nodered.org/t/code-function-for-change-format-data-from-kepware-to-power-bi/82978)

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**Author:** [@Denchai](https://discourse.nodered.org/u/Denchai)\
**Replies:** 6\
**Last updated:** [18 November 2023 07:58 UTC](https://discourse.nodered.org/t/code-function-for-change-format-data-from-kepware-to-power-bi/82978 "2023-11-18T07:58:29Z")

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Who know about code function for change format data from Kepware like picture below to API of Power BI format as \[ { "RANDOM\_NUM" :98.6 } \] Thank you.

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## [Node-red-node-ui-microphone](https://discourse.nodered.org/t/node-red-node-ui-microphone/82956)

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**Author:** [@T3chn0](https://discourse.nodered.org/u/T3chn0)\
**Replies:** 1\
**Last updated:** [17 November 2023 16:46 UTC](https://discourse.nodered.org/t/node-red-node-ui-microphone/82956 "2023-11-17T16:46:53Z")

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Hello, i want to modify a this node so i can get called with an input node instead doing click on the dashboard, i want to call it from the javascript but i cant, what i am trying is: node.on('input', function(msg, sen…

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## [Sending HTML Email](https://discourse.nodered.org/t/sending-html-email/1084)

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**Author:** [@dskilton](https://discourse.nodered.org/u/dskilton)\
**Replies:** 5\
**Last updated:** [17 November 2023 16:12 UTC](https://discourse.nodered.org/t/sending-html-email/1084 "2023-11-17T16:12:58Z")

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I would like to use the node-red-contrib-email-out node, or something similar, to send an HTML email that contains an image in the body of the email based on a triggered event. I have read the documentation on how to se…

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## [MySQL COUNT with Node-Red](https://discourse.nodered.org/t/mysql-count-with-node-red/82832)

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**Author:** [@PhilLu1](https://discourse.nodered.org/u/PhilLu1)\
**Replies:** 33\
**Last updated:** [17 November 2023 13:57 UTC](https://discourse.nodered.org/t/mysql-count-with-node-red/82832 "2023-11-17T13:57:29Z")

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Hello, I try to use COUNT with Node-Red on a MySQL DB. Query is perfectly working on MySQL PHP My Admin... SELECT COUNT(\*) AS nombre FROM \`loinc\_be\_fr\_linguisticvariant\` WHERE \`SYSTEM\` LIKE 'Isolat' AND \`CLASS\` LIKE '…

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## [Mongodb4 connection issue](https://discourse.nodered.org/t/mongodb4-connection-issue/82966)

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**Author:** [@googizzy](https://discourse.nodered.org/u/googizzy)\
**Replies:** 0\
**Last updated:** [17 November 2023 13:16 UTC](https://discourse.nodered.org/t/mongodb4-connection-issue/82966 "2023-11-17T13:16:59Z")

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I have set up my mongodb4 connection as follows: As the documentation says: URI - Define your own connection string in URI format. Read the docs: Connection String in URI Format Which I got from my Mongo Hosted in…

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## [Node red securite](https://discourse.nodered.org/t/node-red-securite/82964)

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**Author:** [@alismont](https://discourse.nodered.org/u/alismont)\
**Replies:** 1\
**Last updated:** [17 November 2023 11:33 UTC](https://discourse.nodered.org/t/node-red-securite/82964 "2023-11-17T11:33:46Z")

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NODE RED I installed node-red on the raspberry pi400. Installation ok I open a browser pop to start node-red editor. The system asks me for a username and password. I don't know what to put in the USERNAME & PW field…

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## [Failing to add/start Node Red in PM2](https://discourse.nodered.org/t/failing-to-add-start-node-red-in-pm2/82891)

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**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\
**Replies:** 14\
**Last updated:** [17 November 2023 11:18 UTC](https://discourse.nodered.org/t/failing-to-add-start-node-red-in-pm2/82891 "2023-11-17T11:18:34Z")

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I used to start NR with PM2, but had to reinstall everything after a SSD crash. I followed the tuorials, but its not working. I am running Win11, installed NR via npm. I had NR in PM2, but it didnt start. I deleted it to…

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## [Timestamp synchroniziation in database](https://discourse.nodered.org/t/timestamp-synchroniziation-in-database/63136)

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**Author:** [@ALIEN](https://discourse.nodered.org/u/ALIEN)\
**Replies:** 6\
**Last updated:** [17 November 2023 12:09 UTC](https://discourse.nodered.org/t/timestamp-synchroniziation-in-database/63136 "2023-11-17T12:09:56Z")

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Dear Friends, Hi, recently I am trying to develop a data acquisition platform and its already done but I have an issue with database! The problem is despite the fact that Modbus reader fetching data every 2 second and t…

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## [~/.npm folder missing - Permissions error updating Nodes](https://discourse.nodered.org/t/npm-folder-missing-permissions-error-updating-nodes/82938)

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**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 6\
**Last updated:** [17 November 2023 10:01 UTC](https://discourse.nodered.org/t/npm-folder-missing-permissions-error-updating-nodes/82938 "2023-11-17T10:01:30Z")

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Hi Folks, Looking for some help on my 'production system'. I have tried to update my Nodes using Manage Palette and I get the errors below. I can't find the home/pi/.npm directory. I am pretty sure that I updated my …

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## [What timer node do I need to trigger at every 5 min past the hour](https://discourse.nodered.org/t/what-timer-node-do-i-need-to-trigger-at-every-5-min-past-the-hour/82935)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 9\
**Last updated:** [17 November 2023 09:46 UTC](https://discourse.nodered.org/t/what-timer-node-do-i-need-to-trigger-at-every-5-min-past-the-hour/82935 "2023-11-17T09:46:21Z")

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i.e every 5 mins on the clock 5 minute markers

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## [Centering Text in template (CSS)](https://discourse.nodered.org/t/centering-text-in-template-css/82958)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 3\
**Last updated:** [17 November 2023 08:07 UTC](https://discourse.nodered.org/t/centering-text-in-template-css/82958 "2023-11-17T08:07:12Z")

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How to center a text in a template node ? I am sorry for asking, but the forum search could not help me, since i am totally a noob with css/html appreciate any help. \[{"id":"af8205cd532ef336","type":"ui\_template","z":"…

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## [PUT API command](https://discourse.nodered.org/t/put-api-command/82899)

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**Author:** [@imperium85](https://discourse.nodered.org/u/imperium85)\
**Replies:** 7\
**Last updated:** [17 November 2023 01:18 UTC](https://discourse.nodered.org/t/put-api-command/82899 "2023-11-17T01:18:17Z")

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Hi People. I'm using the HTTP request node to drive a PUT command for an integration, I have to send out Headers and data in the msg.payload. I want a button on the deashboard to trigger this event, if i put the data in…

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## [Saving array to flow variable](https://discourse.nodered.org/t/saving-array-to-flow-variable/82893)

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**Author:** [@marten-coaxial](https://discourse.nodered.org/u/marten-coaxial)\
**Replies:** 3\
**Last updated:** [16 November 2023 17:41 UTC](https://discourse.nodered.org/t/saving-array-to-flow-variable/82893 "2023-11-16T17:41:51Z")

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Hi, I am having an issue to saving an array to a flow variable: var l = flow.get("l") || \[\] l.push(msg.payload) flow.set("l", l) return l; From my understanding of the documentation and the forum. this should get t…

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## [Memory usage by node red](https://discourse.nodered.org/t/memory-usage-by-node-red/82906)

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**Author:** [@colin0031](https://discourse.nodered.org/u/colin0031)\
**Replies:** 4\
**Last updated:** [16 November 2023 17:09 UTC](https://discourse.nodered.org/t/memory-usage-by-node-red/82906 "2023-11-16T17:09:51Z")

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Hello Experts, I have a node red application which collects information from various cobots and PLC's from production lines. I would like to roll out this application to more production lines, so how can I know how muc…

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## [Parse cvs file that number of raw different in some column](https://discourse.nodered.org/t/parse-cvs-file-that-number-of-raw-different-in-some-column/81962)

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**Author:** [@okircali](https://discourse.nodered.org/u/okircali)\
**Replies:** 16\
**Last updated:** [16 November 2023 16:38 UTC](https://discourse.nodered.org/t/parse-cvs-file-that-number-of-raw-different-in-some-column/81962 "2023-11-16T16:38:22Z")

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Hello, I have a cvs file that have more than one column in a one raw. I want to get the extra columns as an array. However, I just get 1st data of the extra columns in the output of the csv node. For instance, In the be…

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## [Lost ability to read data files from /config](https://discourse.nodered.org/t/lost-ability-to-read-data-files-from-config/82928)

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**Author:** [@Tilerdon](https://discourse.nodered.org/u/Tilerdon)\
**Replies:** 1\
**Last updated:** [16 November 2023 15:21 UTC](https://discourse.nodered.org/t/lost-ability-to-read-data-files-from-config/82928 "2023-11-16T15:21:44Z")

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I've been running my Home Automation application using the Node-Red add-on in Home Assistant for about 18 months now and its been under continuous development. Suddenly last night it stopped working and I found that it s…

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## [Node-Status and Debug Tab not working anymore](https://discourse.nodered.org/t/node-status-and-debug-tab-not-working-anymore/82924)

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**Author:** [@n300](https://discourse.nodered.org/u/n300)\
**Replies:** 3\
**Last updated:** [16 November 2023 15:15 UTC](https://discourse.nodered.org/t/node-status-and-debug-tab-not-working-anymore/82924 "2023-11-16T15:15:13Z")

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Hi there, Since today I'm facing an issue, that neither node status nor debug tab is working any more. My debug node has enabled all targets. In my opinion, after pushing the timestamp, the timestamp shout be displa…

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## [Need help with why I can't install a node. node-red-node-watson](https://discourse.nodered.org/t/need-help-with-why-i-cant-install-a-node-node-red-node-watson/82916)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [16 November 2023 11:17 UTC](https://discourse.nodered.org/t/need-help-with-why-i-cant-install-a-node-node-red-node-watson/82916 "2023-11-16T11:17:18Z")

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Node of interest: node-red-node-watson I have it installed on my NUC and it works. But this is my day to day machine and not one of my always on machines. I'm wanting to use/install it on there but can't. I accept/a…

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## [Template to UI template](https://discourse.nodered.org/t/template-to-ui-template/82900)

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**Author:** [@paulalsmith1000](https://discourse.nodered.org/u/paulalsmith1000)\
**Replies:** 1\
**Last updated:** [16 November 2023 10:26 UTC](https://discourse.nodered.org/t/template-to-ui-template/82900 "2023-11-16T10:26:05Z")

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I wonder if someone could help me (again :)). Is it possible pass large parts of html from a template node to a UI template. I know you can use mustache to pass variables, but what about chunks of html. My use case is…

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## [Control Daikin Altherma Heat Pump via NodeRed](https://discourse.nodered.org/t/control-daikin-altherma-heat-pump-via-nodered/82914)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 0\
**Last updated:** [16 November 2023 10:09 UTC](https://discourse.nodered.org/t/control-daikin-altherma-heat-pump-via-nodered/82914 "2023-11-16T10:09:48Z")

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Dear all, is anybody running an Daikin Altherna Heat Pump logged or controlled by a local Node-Red installation ? I got mine several days ago and now I am trying to get control over it via Node-Red. I know that there …

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## [Question about node-red](https://discourse.nodered.org/t/question-about-node-red/82735)

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**Author:** [@Ideasbuilders](https://discourse.nodered.org/u/Ideasbuilders)\
**Replies:** 25\
**Last updated:** [16 November 2023 09:48 UTC](https://discourse.nodered.org/t/question-about-node-red/82735 "2023-11-16T09:48:10Z")

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Hi Im new to this platform and I wished to know more about details about these. Respond Time Average respond time for node-red program and what influences the respond time. Data Storage Any recommendation for dat…

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## [Problem with filtered datas from Tabulator](https://discourse.nodered.org/t/problem-with-filtered-datas-from-tabulator/82795)

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**Author:** [@JeromeVISUALS](https://discourse.nodered.org/u/JeromeVISUALS)\
**Replies:** 17\
**Last updated:** [15 November 2023 19:57 UTC](https://discourse.nodered.org/t/problem-with-filtered-datas-from-tabulator/82795 "2023-11-15T19:57:29Z")

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Hello, I m trying to manage filtered datas using integration of real tabulator in a template node. I want to apply filter on the datas in the table, so far so good. My problem is I can't get any useful output from the …

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## [Not Displaying Data on Table created with Table Node and template node](https://discourse.nodered.org/t/not-displaying-data-on-table-created-with-table-node-and-template-node/82895)

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**Author:** [@Ramesh](https://discourse.nodered.org/u/Ramesh)\
**Replies:** 0\
**Last updated:** [15 November 2023 16:55 UTC](https://discourse.nodered.org/t/not-displaying-data-on-table-created-with-table-node-and-template-node/82895 "2023-11-15T16:55:54Z")

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im reading serial data and after processing using function node: I have used table node to display data i am getting data on debug but not in table . i have used template node to to create table and display data. The…

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## [Node Red crashes on startup](https://discourse.nodered.org/t/node-red-crashes-on-startup/82886)

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**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\
**Replies:** 3\
**Last updated:** [15 November 2023 16:50 UTC](https://discourse.nodered.org/t/node-red-crashes-on-startup/82886 "2023-11-15T16:50:37Z")

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After my SSD became unreadable, I had to reinstall everything. I had a backup of my flows and the package.json, which made it a little easier. Everything installed fine. But, when I start NR, it crashes immediately. But …

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