# Latest

**URL:** https://discourse.nodered.org/latest.md?page=756

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

**Page:** 757

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## [Help for history alarm](https://discourse.nodered.org/t/help-for-history-alarm/49515)

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**Author:** [@grandautism](https://discourse.nodered.org/u/grandautism)\
**Replies:** 4\
**Last updated:** [9 August 2021 10:44 UTC](https://discourse.nodered.org/t/help-for-history-alarm/49515 "2021-08-09T10:44:55Z")

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hello community, I created an alarm but I want to show all the alarm history,but in my case the new alarm crushes the last here is my flow, if anyone can help me i will be grateful \[{"id":"e5857942.727778","type":"tab…

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## [Lost flows after upgrade on raspberry pi4](https://discourse.nodered.org/t/lost-flows-after-upgrade-on-raspberry-pi4/49475)

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**Author:** [@yawstick1](https://discourse.nodered.org/u/yawstick1)\
**Replies:** 14\
**Last updated:** [9 August 2021 07:43 UTC](https://discourse.nodered.org/t/lost-flows-after-upgrade-on-raspberry-pi4/49475 "2021-08-09T07:43:47Z")

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I've been running Node-Red on a Raspberry pi4 and just did a sudo apt-get upgrade and node-red stopped while this was running. When I restarted it all my flows were gone. Never had this happen before... should I be able …

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## [Node-red Multiple Projects](https://discourse.nodered.org/t/node-red-multiple-projects/49404)

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**Author:** [@T3chn0](https://discourse.nodered.org/u/T3chn0)\
**Replies:** 18\
**Last updated:** [9 August 2021 05:51 UTC](https://discourse.nodered.org/t/node-red-multiple-projects/49404 "2021-08-09T05:51:33Z")

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Hi, ive been searching for something like this plugin: https://flows.nodered.org/flow/d34840c03abc4af11bd2bb8b2dba6a9d But when i installed it doesnt show up the menu for create projects, i dont want to RUN multiple pr…

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## [Show us your Dashboard!](https://discourse.nodered.org/t/show-us-your-dashboard/47965)

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**Author:** [@leftymuller](https://discourse.nodered.org/u/leftymuller)\
**Replies:** 76\
**Last updated:** [9 August 2021 04:33 UTC](https://discourse.nodered.org/t/show-us-your-dashboard/47965 "2021-08-09T04:33:55Z")

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Hey Peoples, Id like to see what people have done with their dashboards! I'll start... feel free to show us your craft! This page sits on 3 raspberry pi's in 3 dwellings on this property. Its pretty self explainat…

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## [Implementing a user login system with node-red endpoints](https://discourse.nodered.org/t/implementing-a-user-login-system-with-node-red-endpoints/49496)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 1\
**Last updated:** [9 August 2021 01:41 UTC](https://discourse.nodered.org/t/implementing-a-user-login-system-with-node-red-endpoints/49496 "2021-08-09T01:41:55Z")

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I have a (primitive) Subflow I made on my node-red server that essentially allows for users to be created, registered etc ... It's working fine, but my question is... Am I "reinventing the wheel" ? Are there any worth…

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## [Subflow error source is not searchable](https://discourse.nodered.org/t/subflow-error-source-is-not-searchable/49481)

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**Author:** [@mannharleen](https://discourse.nodered.org/u/mannharleen)\
**Replies:** 4\
**Last updated:** [8 August 2021 23:48 UTC](https://discourse.nodered.org/t/subflow-error-source-is-not-searchable/49481 "2021-08-08T23:48:06Z")

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A subflow containing a function node throws an error. The error is caught by a catch node in the flow where the subflow instance is placed. The catch node shows the msg.error.source.id. However, we can;t search the id …

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## [Objectid is not compatible with my version of node](https://discourse.nodered.org/t/objectid-is-not-compatible-with-my-version-of-node/49467)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 7\
**Last updated:** [8 August 2021 21:38 UTC](https://discourse.nodered.org/t/objectid-is-not-compatible-with-my-version-of-node/49467 "2021-08-08T21:38:33Z")

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Trying to migrate to new server, and when I did, I upgraded node-red to version 2.0.5, and now I am having some major issues. Flows won't deploy due to missing node types, and I keep getting errors installing some nodes…

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## [Is it possible to install missing node types automatically?](https://discourse.nodered.org/t/is-it-possible-to-install-missing-node-types-automatically/49465)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 11\
**Last updated:** [8 August 2021 20:53 UTC](https://discourse.nodered.org/t/is-it-possible-to-install-missing-node-types-automatically/49465 "2021-08-08T20:53:18Z")

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I'm deploying to a new server, all my node-red flows; Is it possible to install missing node types automatically? Or is there a way similar to installing npm packages, where it finds what modules are needed and install…

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## [\[Minor Update\] alternate-node-red-uibuilder v4.1.1](https://discourse.nodered.org/t/minor-update-alternate-node-red-uibuilder-v4-1-1/49491)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 0\
**Last updated:** [8 August 2021 19:27 UTC](https://discourse.nodered.org/t/minor-update-alternate-node-red-uibuilder-v4-1-1/49491 "2021-08-08T19:27:20Z")

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Hi all, earlier today, I published a minor update to uibuilder. New Issue #151If the advanced option to "Show web view of source files" is selected, also show a link to the webpage. Changed Issue #149 If security i…

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## [Math add to a buffer number](https://discourse.nodered.org/t/math-add-to-a-buffer-number/49490)

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**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 3\
**Last updated:** [8 August 2021 19:35 UTC](https://discourse.nodered.org/t/math-add-to-a-buffer-number/49490 "2021-08-08T19:35:58Z")

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I have this payload that I need to add with 1, but i cant get it working. Can someone help? var askno = msg.dynet\[5\] ; msg.askno = askno ; msg.askno1 = askno + 1; return msg;

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## [HTTP Request "Error: socket hang up"](https://discourse.nodered.org/t/http-request-error-socket-hang-up/8834)

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**Author:** [@binary](https://discourse.nodered.org/u/binary)\
**Replies:** 16\
**Last updated:** [8 August 2021 17:56 UTC](https://discourse.nodered.org/t/http-request-error-socket-hang-up/8834 "2021-08-08T17:56:01Z")

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Hi, Short version of the problem: I am sending a URL to an http request node to control my air conditioning, but node red returns, "Error: socket hang up". I know the URL is valid, because when pasted into a browser, i…

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## [Change node propery from directly from "function"](https://discourse.nodered.org/t/change-node-propery-from-directly-from-function/49169)

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**Author:** [@Comawhite54](https://discourse.nodered.org/u/Comawhite54)\
**Replies:** 19\
**Last updated:** [8 August 2021 16:12 UTC](https://discourse.nodered.org/t/change-node-propery-from-directly-from-function/49169 "2021-08-08T16:12:47Z")

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Hello all, Rather than using the node "Change" I would like to type directly the change command (set msg.payload) in my already existing javascript function node. Is it possible? Otherwise, it means that after my funct…

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## [Find and count number of equal in array](https://discourse.nodered.org/t/find-and-count-number-of-equal-in-array/49460)

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**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 5\
**Last updated:** [8 August 2021 15:16 UTC](https://discourse.nodered.org/t/find-and-count-number-of-equal-in-array/49460 "2021-08-08T15:16:53Z")

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Hi I need to count the numbers of Offline state in an array I did find a way to use the find command, but it only takes the first one and then stops, how do I find all of them. Next question: how to I insert the numb…

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## [How to output 1-3 KHz using PWM](https://discourse.nodered.org/t/how-to-output-1-3-khz-using-pwm/49455)

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**Author:** [@Fripper](https://discourse.nodered.org/u/Fripper)\
**Replies:** 2\
**Last updated:** [8 August 2021 12:28 UTC](https://discourse.nodered.org/t/how-to-output-1-3-khz-using-pwm/49455 "2021-08-08T12:28:19Z")

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Hi there. Fairly new to Node Red and it works very good so far and is easy to use. I have a project where I want to control a valve using 0-10V. Everything else like reading values, setup dashboard etc works fine. My …

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## [Node-Red Modbus write node's not working](https://discourse.nodered.org/t/node-red-modbus-write-nodes-not-working/49143)

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**Author:** [@rrabbit454](https://discourse.nodered.org/u/rrabbit454)\
**Replies:** 4\
**Last updated:** [8 August 2021 12:30 UTC](https://discourse.nodered.org/t/node-red-modbus-write-nodes-not-working/49143 "2021-08-08T12:30:43Z")

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Hello. In my house i have main automation (lights, heating, Hot water) done using Unipi PLC controller and Home Assistant on Raspberry Pi4 for additional task like camera, tracking and some more other things. Both cont…

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## [Dependent input defaults for subflow](https://discourse.nodered.org/t/dependent-input-defaults-for-subflow/49482)

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**Author:** [@mannharleen](https://discourse.nodered.org/u/mannharleen)\
**Replies:** 0\
**Last updated:** [8 August 2021 12:29 UTC](https://discourse.nodered.org/t/dependent-input-defaults-for-subflow/49482 "2021-08-08T12:29:21Z")

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Now that we can create nodes from subflow, it might be valuable to ring some enhancements to the subflows. Currently, we cannot created dependent input defaults for subflow. e.g. given two inputs for a subflow - "type…

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## [Contrib-s7 problem with WiFi](https://discourse.nodered.org/t/contrib-s7-problem-with-wifi/48763)

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**Author:** [@jmm](https://discourse.nodered.org/u/jmm)\
**Replies:** 14\
**Last updated:** [8 August 2021 10:33 UTC](https://discourse.nodered.org/t/contrib-s7-problem-with-wifi/48763 "2021-08-08T10:33:01Z")

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Hello everyone. I am controlling a LOGO! PLC using node-red-contrib-s7 (3.0.0-beta.3) with a Raspberry Pi model 4. Everything works properly, but when I connect the Raspberry Pi model 4 to the WiFi, the node disconnects…

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## [Has this been implemented - node.debug() to show on sidebar?](https://discourse.nodered.org/t/has-this-been-implemented-node-debug-to-show-on-sidebar/49477)

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**Author:** [@mannharleen](https://discourse.nodered.org/u/mannharleen)\
**Replies:** 0\
**Last updated:** [8 August 2021 10:26 UTC](https://discourse.nodered.org/t/has-this-been-implemented-node-debug-to-show-on-sidebar/49477 "2021-08-08T10:26:49Z")

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Continuing the discussion from How to debug a function Node?:

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## [Serial in/serial out issues - memory leak?](https://discourse.nodered.org/t/serial-in-serial-out-issues-memory-leak/49430)

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**Author:** [@RaptorUK](https://discourse.nodered.org/u/RaptorUK)\
**Replies:** 8\
**Last updated:** [8 August 2021 06:38 UTC](https://discourse.nodered.org/t/serial-in-serial-out-issues-memory-leak/49430 "2021-08-08T06:38:58Z")

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Hi folks, 5 Aug 22:10:48 - \[info\] Node-RED version: v1.3.5 5 Aug 22:10:48 - \[info\] Node.js version: v12.22.1 5 Aug 22:10:48 - \[info\] Linux 5.10.17-v7+ arm LE 5 Aug 22:10:49 - \[info\] Loading palette nodes 5 Aug 22:10:54…

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## [Issue: flows stopped due to missing node types](https://discourse.nodered.org/t/issue-flows-stopped-due-to-missing-node-types/19174)

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**Author:** [@weijian0417](https://discourse.nodered.org/u/weijian0417)\
**Replies:** 22\
**Last updated:** [8 August 2021 03:14 UTC](https://discourse.nodered.org/t/issue-flows-stopped-due-to-missing-node-types/19174 "2021-08-08T03:14:28Z")

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Hi, I'm using the NodeRED with IBM cloud. I import a json. file and the error "Flows stopped due to missing node types". I have tried to install the required nodes by checking the palette: node-red-dashboard, but it show…

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## [Flush delay node by topic](https://discourse.nodered.org/t/flush-delay-node-by-topic/49441)

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**Author:** [@namgk](https://discourse.nodered.org/u/namgk)\
**Replies:** 4\
**Last updated:** [7 August 2021 21:36 UTC](https://discourse.nodered.org/t/flush-delay-node-by-topic/49441 "2021-08-07T21:36:28Z")

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Hi there, I think it's beneficial to have an option to flush the delay node by topic instead of flushing all the messages at once. For example, there could be devices sending requests in (via http in node) that need to…

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## [Display Arduino readings via node red](https://discourse.nodered.org/t/display-arduino-readings-via-node-red/49425)

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**Author:** [@mustafa](https://discourse.nodered.org/u/mustafa)\
**Replies:** 11\
**Last updated:** [7 August 2021 20:33 UTC](https://discourse.nodered.org/t/display-arduino-readings-via-node-red/49425 "2021-08-07T20:33:42Z")

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Hi I have a specific code on Arduino to measure analog signal like current and voltage but I need to connect Arduino to raspberry pi 3 to display these readings on ui dashboard Is it possible to do that and how?

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## [Update entry or create it to MariaDB (SQL Database)](https://discourse.nodered.org/t/update-entry-or-create-it-to-mariadb-sql-database/49456)

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**Author:** [@nicedevil](https://discourse.nodered.org/u/nicedevil)\
**Replies:** 4\
**Last updated:** [7 August 2021 18:11 UTC](https://discourse.nodered.org/t/update-entry-or-create-it-to-mariadb-sql-database/49456 "2021-08-07T18:11:08Z")

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Hey guys again, my first issue was solved in an other thread here and to keep it a bit organized I just wanted to make a new thread on my following problem with my sql database. (old thread: Write variables to MariaDB (…

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## [Write variables to MariaDB (SQL Database)](https://discourse.nodered.org/t/write-variables-to-mariadb-sql-database/49452)

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**Author:** [@nicedevil](https://discourse.nodered.org/u/nicedevil)\
**Replies:** 10\
**Last updated:** [7 August 2021 18:05 UTC](https://discourse.nodered.org/t/write-variables-to-mariadb-sql-database/49452 "2021-08-07T18:05:39Z")

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Hey there, I was trying to get my data to a sql database and I'm struggling with the correct syntax. I hope someone can help me out. I'm using this node here: node-red-contrib-stackhero-mysql (node) - Node-RED (nodere…

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## [Retrieve Dynamic value in object](https://discourse.nodered.org/t/retrieve-dynamic-value-in-object/49437)

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**Author:** [@FireWizard52](https://discourse.nodered.org/u/FireWizard52)\
**Replies:** 9\
**Last updated:** [7 August 2021 14:39 UTC](https://discourse.nodered.org/t/retrieve-dynamic-value-in-object/49437 "2021-08-07T14:39:15Z")

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Hi all, I receive from the API "forecast.solar" (see also post Ideas about solar production forecasting) a message as shown in the picture below: I would like to retrieve the date and time or even better to compare …

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## [Creating lists in Sharepoint Online using NodeRed](https://discourse.nodered.org/t/creating-lists-in-sharepoint-online-using-nodered/49438)

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**Author:** [@gdevilliers](https://discourse.nodered.org/u/gdevilliers)\
**Replies:** 1\
**Last updated:** [7 August 2021 13:11 UTC](https://discourse.nodered.org/t/creating-lists-in-sharepoint-online-using-nodered/49438 "2021-08-07T13:11:44Z")

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Hi Guys, I am trying to create a Sharepoint list and the authentication process and amount of options out there has kept me busy for days. Nevermind the complexity obtaining the correct tokens to use the Graph APIs. I ha…

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## [Again: How to find a node](https://discourse.nodered.org/t/again-how-to-find-a-node/49401)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 17\
**Last updated:** [7 August 2021 10:13 UTC](https://discourse.nodered.org/t/again-how-to-find-a-node/49401 "2021-08-07T10:13:17Z")

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I am again confronted with this problem. I want to find MQTT nodes which use a certain broker and change them... Specifically them. So I can't just edit the configuration. How do I do that? Searching for that broker…

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## [File upload sftp](https://discourse.nodered.org/t/file-upload-sftp/49445)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 9\
**Last updated:** [7 August 2021 09:19 UTC](https://discourse.nodered.org/t/file-upload-sftp/49445 "2021-08-07T09:19:44Z")

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Hello! Is it possible to upload a file via FTP?

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## [BBQ webpage that show incoming mqtt messages](https://discourse.nodered.org/t/bbq-webpage-that-show-incoming-mqtt-messages/49403)

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**Author:** [@megamarco83](https://discourse.nodered.org/u/megamarco83)\
**Replies:** 14\
**Last updated:** [7 August 2021 08:16 UTC](https://discourse.nodered.org/t/bbq-webpage-that-show-incoming-mqtt-messages/49403 "2021-08-07T08:16:41Z")

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hi, i'm with nodered on raspberry pi 3 buster. i have some mqtt messages about probes for BBQ like: topic to subscrive =\> domoticz/in messages =\> { "idx" : 256, "nvalue" : 0, "svalue" : "30.4" } { "idx" : 255, "nvalu…

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## [Store msg alone without needing to have excel ,SQLite table just by topic to payload it again to node red when needed](https://discourse.nodered.org/t/store-msg-alone-without-needing-to-have-excel-sqlite-table-just-by-topic-to-payload-it-again-to-node-red-when-needed/49398)

<div class="topic-metadata">

**Author:** [@badr\_al\_moragab](https://discourse.nodered.org/u/badr_al_moragab)\
**Replies:** 39\
**Last updated:** [7 August 2021 00:45 UTC](https://discourse.nodered.org/t/store-msg-alone-without-needing-to-have-excel-sqlite-table-just-by-topic-to-payload-it-again-to-node-red-when-needed/49398 "2021-08-07T00:45:21Z")

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Hello guys. I need your help to solve this problem. I'm running node red from my PC and I'm using node red to calculate and count the payment on my brother store. I'm really happy that node red is on my life it helps m…

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