# Latest

**URL:** https://discourse.nodered.org/latest.md?page=734

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

**Page:** 735

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## [Node-red on raspberryPi zero W](https://discourse.nodered.org/t/node-red-on-raspberrypi-zero-w/50874)

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**Author:** [@alpha815](https://discourse.nodered.org/u/alpha815)\
**Replies:** 17\
**Last updated:** [14 September 2021 21:37 UTC](https://discourse.nodered.org/t/node-red-on-raspberrypi-zero-w/50874 "2021-09-14T21:37:22Z")

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Last week i completed weather monitoring project using esp-32 and some sensors to monitor temperature, humidity, barometric pressure, CO2, VOC. I am planning to add few more to monitor Luminosity and UV too. Data is feed…

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## [Temporary flow working stops or deploy stalling until pressing the enter key in log window](https://discourse.nodered.org/t/temporary-flow-working-stops-or-deploy-stalling-until-pressing-the-enter-key-in-log-window/50966)

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**Author:** [@Peter99](https://discourse.nodered.org/u/Peter99)\
**Replies:** 10\
**Last updated:** [14 September 2021 20:34 UTC](https://discourse.nodered.org/t/temporary-flow-working-stops-or-deploy-stalling-until-pressing-the-enter-key-in-log-window/50966 "2021-09-14T20:34:23Z")

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Hi. I'm doing my small project. I have used Tcp-In node to connect aduino33 IOT with wifi. sometimes when econnreset error occurs then node-red flow stops until I press enter key manually in log window. Also when i depl…

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## [Issue with dynamic Schedules in node-red-contrib-cron-plus](https://discourse.nodered.org/t/issue-with-dynamic-schedules-in-node-red-contrib-cron-plus/51031)

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**Author:** [@MartinOHV](https://discourse.nodered.org/u/MartinOHV)\
**Replies:** 1\
**Last updated:** [14 September 2021 18:44 UTC](https://discourse.nodered.org/t/issue-with-dynamic-schedules-in-node-red-contrib-cron-plus/51031 "2021-09-14T18:44:04Z")

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Hi, i have some issues with dynamic Schedules in Cron+... I use a File input to read my schedules from an Textfile /home/pi/schedules. The File contains this: Aussenbeleuchtung morgens an;0 0 7 \* \* \*;kmt004-3=on Aussen…

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## [Question about gauge node](https://discourse.nodered.org/t/question-about-gauge-node/51026)

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**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\
**Replies:** 0\
**Last updated:** [14 September 2021 16:10 UTC](https://discourse.nodered.org/t/question-about-gauge-node/51026 "2021-09-14T16:10:22Z")

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I've successfully passed the ui\_control.min and max values from my flow. But I've not been successful passing the Units string from my flow via ui\_control.options.symbol. Am I using the correct reference?

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## [Beginners questions on handling strings and using NodeRED](https://discourse.nodered.org/t/beginners-questions-on-handling-strings-and-using-nodered/50745)

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**Author:** [@elschopi](https://discourse.nodered.org/u/elschopi)\
**Replies:** 19\
**Last updated:** [14 September 2021 15:46 UTC](https://discourse.nodered.org/t/beginners-questions-on-handling-strings-and-using-nodered/50745 "2021-09-14T15:46:45Z")

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Hello everyone, I use MQTT to receive a string that contains sensor data. That string is formatted like this: "ID;TIME;VAL1;VAL2;VAL3;VAL4;VAL5" where the capitalized names are strings of varying length. So far I was …

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## [Off line update](https://discourse.nodered.org/t/off-line-update/51020)

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**Author:** [@dsplitz](https://discourse.nodered.org/u/dsplitz)\
**Replies:** 0\
**Last updated:** [14 September 2021 15:39 UTC](https://discourse.nodered.org/t/off-line-update/51020 "2021-09-14T15:39:20Z")

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I have a system that must be isolated from the internet. Is it possible to add nodes to the pallet or update node-red while isolated ? I have the wireless access so I can get to the running dashboard and source. I can al…

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## [How to use turf.js in node-red](https://discourse.nodered.org/t/how-to-use-turf-js-in-node-red/50830)

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**Author:** [@trickermkd](https://discourse.nodered.org/u/trickermkd)\
**Replies:** 8\
**Last updated:** [14 September 2021 15:11 UTC](https://discourse.nodered.org/t/how-to-use-turf-js-in-node-red/50830 "2021-09-14T15:11:15Z")

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I am working on Node-Red, and for my project I also use turf.js, which can be installed on node-red as well ( node-red-contrib-turf ). This is how the structure looks: With functionOne having this code: msg.topic =…

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## [Node-red-node-rbe conflict](https://discourse.nodered.org/t/node-red-node-rbe-conflict/51014)

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**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\
**Replies:** 3\
**Last updated:** [14 September 2021 14:34 UTC](https://discourse.nodered.org/t/node-red-node-rbe-conflict/51014 "2021-09-14T14:34:44Z")

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I've setup my node-red RPi and have added multiple nodes without any problems. Today I wanted to install the node-red-node-rbe but when I go into Palette to install it, I have the "conflict" message. It states the conf…

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## [Problems to install Node-red in Ubuntu 18.04](https://discourse.nodered.org/t/problems-to-install-node-red-in-ubuntu-18-04/50991)

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**Author:** [@arielperez](https://discourse.nodered.org/u/arielperez)\
**Replies:** 2\
**Last updated:** [14 September 2021 13:16 UTC](https://discourse.nodered.org/t/problems-to-install-node-red-in-ubuntu-18-04/50991 "2021-09-14T13:16:08Z")

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Hi, Before begining I want to clarify that I am a Windows user, so please, be patient! :slight\_smile: I have just install node-red following the link: https://www.techunits.com/topics/setup-guides/step-by-step-guide-to…

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## [Access problem to influxDB from node Red - different Server](https://discourse.nodered.org/t/access-problem-to-influxdb-from-node-red-different-server/50986)

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**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\
**Replies:** 22\
**Last updated:** [14 September 2021 11:52 UTC](https://discourse.nodered.org/t/access-problem-to-influxdb-from-node-red-different-server/50986 "2021-09-14T11:52:20Z")

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hello nodered, influxdb1.8.x and grafana are on 3 different VM. After i had to reboot the Node itself the vm rebootet without error but nodered can't write down to influxdb grafana can't read data from influxdb graf…

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## [Subflow flow.$parent with env. variable as path possible?](https://discourse.nodered.org/t/subflow-flow-parent-with-env-variable-as-path-possible/51000)

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**Author:** [@novski](https://discourse.nodered.org/u/novski)\
**Replies:** 0\
**Last updated:** [14 September 2021 08:50 UTC](https://discourse.nodered.org/t/subflow-flow-parent-with-env-variable-as-path-possible/51000 "2021-09-14T08:50:42Z")

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Im wondering if it is somehow possible to save a variable from within a subflow and change node to a dynamic path like: flow.$parent.$env('Device Name').temperature or simmilar. to get a flow variable stored in the pat…

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## [Create mongodb database using another mongodb in node red](https://discourse.nodered.org/t/create-mongodb-database-using-another-mongodb-in-node-red/50964)

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**Author:** [@abhilash](https://discourse.nodered.org/u/abhilash)\
**Replies:** 2\
**Last updated:** [14 September 2021 06:51 UTC](https://discourse.nodered.org/t/create-mongodb-database-using-another-mongodb-in-node-red/50964 "2021-09-14T06:51:02Z")

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Hi Guys, We have one large database in mongoDB and we would like to create a summary mongoDB database based on the large database using Node-red. Can anyone help to achieve this please? thanks in advance, Aby

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## [Ubuntu Server 21.04 GPIO Not Working](https://discourse.nodered.org/t/ubuntu-server-21-04-gpio-not-working/50947)

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**Author:** [@mdazmir](https://discourse.nodered.org/u/mdazmir)\
**Replies:** 5\
**Last updated:** [14 September 2021 02:46 UTC](https://discourse.nodered.org/t/ubuntu-server-21-04-gpio-not-working/50947 "2021-09-14T02:46:53Z")

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Based on this post, as of Linux kernel 5.11, the old methods of communicating with header pins on the Raspberry Pi no longer work. This means packages such as RPi.GPIO no longer function properly with newer kernels hence…

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## [Script Examples](https://discourse.nodered.org/t/script-examples/50962)

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**Author:** [@rcalves](https://discourse.nodered.org/u/rcalves)\
**Replies:** 4\
**Last updated:** [13 September 2021 22:02 UTC](https://discourse.nodered.org/t/script-examples/50962 "2021-09-13T22:02:28Z")

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Good morning, I'm new to the world of node-red, I come from back-end programming with .netCore. I saw that inside node, you can use functions, so I would like to ask for tutorials, handouts, example scripts. Apparently t…

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## [Power outage recording](https://discourse.nodered.org/t/power-outage-recording/50931)

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**Author:** [@shel](https://discourse.nodered.org/u/shel)\
**Replies:** 8\
**Last updated:** [13 September 2021 21:50 UTC](https://discourse.nodered.org/t/power-outage-recording/50931 "2021-09-13T21:50:13Z")

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The power here fails fairly often. Not every day or even every week but probably every three weeks or so. Sometimes I'm not home so I got curious as to when the power failed and when it came back on. Nothing earth shatte…

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## [I18n access to exist method](https://discourse.nodered.org/t/i18n-access-to-exist-method/50987)

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**Author:** [@Zehir](https://discourse.nodered.org/u/Zehir)\
**Replies:** 0\
**Last updated:** [13 September 2021 21:21 UTC](https://discourse.nodered.org/t/i18n-access-to-exist-method/50987 "2021-09-13T21:21:06Z")

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Hello, About the method RED.\_ to i18n the nodes, I would like to know if a key exist or not inside the library. I read the doc and find out that a method already exist inside the i18next lib but it's note accessible fr…

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## [Flow set "array error" using mqtt topic](https://discourse.nodered.org/t/flow-set-array-error-using-mqtt-topic/50973)

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**Author:** [@Lost](https://discourse.nodered.org/u/Lost)\
**Replies:** 4\
**Last updated:** [13 September 2021 20:36 UTC](https://discourse.nodered.org/t/flow-set-array-error-using-mqtt-topic/50973 "2021-09-13T20:36:57Z")

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Hi. I am trying to save a thermostat mode to a flow variable using the msg.topic but it does not work as expected. Flow: Result: How can i save it based on the MQTT adress without getting all those array enteri…

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## [2 instances of node red](https://discourse.nodered.org/t/2-instances-of-node-red/50944)

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**Author:** [@cthompstone](https://discourse.nodered.org/u/cthompstone)\
**Replies:** 3\
**Last updated:** [13 September 2021 20:17 UTC](https://discourse.nodered.org/t/2-instances-of-node-red/50944 "2021-09-13T20:17:18Z")

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Hi Guys, I have a version 1.x node red running on a ubuntu box. It uses a signal messenging node which I think won't work under node 2.x (the developer seems to have stopped working on this node). I'd like to move to …

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## [Feature Request: Better/Group Comments](https://discourse.nodered.org/t/feature-request-better-group-comments/50978)

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**Author:** [@Dustin](https://discourse.nodered.org/u/Dustin)\
**Replies:** 5\
**Last updated:** [13 September 2021 19:52 UTC](https://discourse.nodered.org/t/feature-request-better-group-comments/50978 "2021-09-13T19:52:13Z")

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Anyone ever seen how Unreal Engine handles their comments? Can group nodes inside a comment, and color coordinate them. I've always thought this would be an amazing addition to Node-Red's "Comment" node. The ability to …

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## [Anyone tried Appsmith - a low code App front-end platform](https://discourse.nodered.org/t/anyone-tried-appsmith-a-low-code-app-front-end-platform/50011)

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**Author:** [@iiLaw](https://discourse.nodered.org/u/iiLaw)\
**Replies:** 2\
**Last updated:** [13 September 2021 18:54 UTC](https://discourse.nodered.org/t/anyone-tried-appsmith-a-low-code-app-front-end-platform/50011 "2021-09-13T18:54:08Z")

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I've just spent 5 mins playing with https://www.appsmith.com/ a "low code" Front-end platform. For those who need trad App like widgets that auto-bind to a DB or JSON from an API this might be more of an option than us…

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## [\[ANNOUNCE\] node-red-contrib-data-uri](https://discourse.nodered.org/t/announce-node-red-contrib-data-uri/50901)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 8\
**Last updated:** [13 September 2021 18:49 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-data-uri/50901 "2021-09-13T18:49:42Z")

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Hi folks, Yesterday I got a question about embedded images with my node-red-contrib-ui-web-push node. In this link you can see that it is possible to embed an image into a web push notification. For example when your …

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## [Flow for State-Change notification - question](https://discourse.nodered.org/t/flow-for-state-change-notification-question/50805)

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**Author:** [@Wurzelpeter](https://discourse.nodered.org/u/Wurzelpeter)\
**Replies:** 4\
**Last updated:** [13 September 2021 16:32 UTC](https://discourse.nodered.org/t/flow-for-state-change-notification-question/50805 "2021-09-13T16:32:22Z")

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Hello there! I wanted to make a notification flow, that gets the average electricity price aep from a sensor and compares that to the current electricity price cep from another sensor. This flow sends a notification to…

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## [Sizing cards/widgets](https://discourse.nodered.org/t/sizing-cards-widgets/50972)

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**Author:** [@paulalsmith1000](https://discourse.nodered.org/u/paulalsmith1000)\
**Replies:** 0\
**Last updated:** [13 September 2021 16:05 UTC](https://discourse.nodered.org/t/sizing-cards-widgets/50972 "2021-09-13T16:05:28Z")

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Hi everybody, thanks very much for your help to date, I'm flying along now making my own dashboard nodes for various sensors using the template. The problem I'm encountering now is how to control the layout/sizing of ea…

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## [Email notification error](https://discourse.nodered.org/t/email-notification-error/50961)

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**Author:** [@KrishnanRavichandran](https://discourse.nodered.org/u/KrishnanRavichandran)\
**Replies:** 10\
**Last updated:** [13 September 2021 16:00 UTC](https://discourse.nodered.org/t/email-notification-error/50961 "2021-09-13T16:00:21Z")

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I am using an external hardware (Advantech ADAM 6717) from which I need emails to be sent based on the readings. But, when I try to test the email functionality via the Node red on the hardware, I am getting the followin…

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## [Newly refreshed dashboard table shows stale data after all dashboards closed for some time](https://discourse.nodered.org/t/newly-refreshed-dashboard-table-shows-stale-data-after-all-dashboards-closed-for-some-time/49730)

<div class="topic-metadata">

**Author:** [@GeorgeCastanza](https://discourse.nodered.org/u/GeorgeCastanza)\
**Replies:** 5\
**Last updated:** [13 September 2021 14:19 UTC](https://discourse.nodered.org/t/newly-refreshed-dashboard-table-shows-stale-data-after-all-dashboards-closed-for-some-time/49730 "2021-09-13T14:19:09Z")

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I've got a flow that records the last time any zigbee2mqtt device meshes with the zigbee mesh, to check if any devices have dropped off. The problem is that the dash table only updates if the dashboard is open somewhere…

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## [Soap Server on Node-Red](https://discourse.nodered.org/t/soap-server-on-node-red/50907)

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**Author:** [@aderici](https://discourse.nodered.org/u/aderici)\
**Replies:** 4\
**Last updated:** [13 September 2021 13:13 UTC](https://discourse.nodered.org/t/soap-server-on-node-red/50907 "2021-09-13T13:13:06Z")

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Hi, i'd like to build a soap server based on node-red. While there are existing contrib nodes, they all target opening an additional port for soap server. I'm looking for a way to create a soap server and having it in th…

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## [Dynamic Objectpath for extracting an element](https://discourse.nodered.org/t/dynamic-objectpath-for-extracting-an-element/50951)

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**Author:** [@protonmw](https://discourse.nodered.org/u/protonmw)\
**Replies:** 16\
**Last updated:** [13 September 2021 12:40 UTC](https://discourse.nodered.org/t/dynamic-objectpath-for-extracting-an-element/50951 "2021-09-13T12:40:30Z")

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Hi all! I want to extract a message element by a known path, but dynamically (via dropwdown or inputstring). How can I do this? Thanks for help on this!

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## [Converting joined strings to UTF-8 string](https://discourse.nodered.org/t/converting-joined-strings-to-utf-8-string/50948)

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**Author:** [@Aakash](https://discourse.nodered.org/u/Aakash)\
**Replies:** 17\
**Last updated:** [13 September 2021 11:37 UTC](https://discourse.nodered.org/t/converting-joined-strings-to-utf-8-string/50948 "2021-09-13T11:37:16Z")

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Hi there, I am new to node red. I am using version 1.0.3. I have an application where I am trying to convert multiple data from PLC tags(int, float data type) to String by using Join node and then pushing it forward on…

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## [Uibuilder sqlite security.js](https://discourse.nodered.org/t/uibuilder-sqlite-security-js/48542)

<div class="topic-metadata">

**Author:** [@amitsinghio](https://discourse.nodered.org/u/amitsinghio)\
**Replies:** 4\
**Last updated:** [28 July 2021 09:05 UTC](https://discourse.nodered.org/t/uibuilder-sqlite-security-js/48542 "2021-07-28T09:05:37Z")

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Hello Folks, It's me again, with another rather stupid question. Shame on me :no\_mouth: How do I connect to a sqlite (node-red-node-sqlite) from within the security.js file? Or do I have to send a message with uibuilde…

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## [How to insert msg.payload in template UI?](https://discourse.nodered.org/t/how-to-insert-msg-payload-in-template-ui/50938)

<div class="topic-metadata">

**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 2\
**Last updated:** [13 September 2021 07:14 UTC](https://discourse.nodered.org/t/how-to-insert-msg-payload-in-template-ui/50938 "2021-09-13T07:14:25Z")

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Hi, I get the ip address and I try to insert it in the iframe. I have read the forum and it should worked but didn't... not sure why.... pls take a look this iframe with exact ip address works, src="http://172.20.10.2/…

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