# Latest

**URL:** https://discourse.nodered.org/latest.md?page=990

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

**Page:** 991

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## [Serial communication problem](https://discourse.nodered.org/t/serial-communication-problem/33407)

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**Author:** [@jw\_te\_r](https://discourse.nodered.org/u/jw_te_r)\
**Replies:** 9\
**Last updated:** [28 September 2020 17:27 UTC](https://discourse.nodered.org/t/serial-communication-problem/33407 "2020-09-28T17:27:15Z")

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I'm using Node-Red to connect a laptop to a Mitsubishi Alpha-2 microcontroller via an usb-serial cable. The communication doesn't start immediately when I fire up my laptop. Initially I suspected a permissions issue in…

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## [Connecting Barcode Reader Machine and read value](https://discourse.nodered.org/t/connecting-barcode-reader-machine-and-read-value/33463)

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**Author:** [@Chetan\_001](https://discourse.nodered.org/u/Chetan_001)\
**Replies:** 1\
**Last updated:** [28 September 2020 16:51 UTC](https://discourse.nodered.org/t/connecting-barcode-reader-machine-and-read-value/33463 "2020-09-28T16:51:53Z")

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Hello Guys, I am tring to connect Barcode Reader Machine and read value. I tried to use serial connection but i am not able to read the data. Please guide me how can i do that. Regards, Chetan

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## [How to disable/enable UI tab from UI](https://discourse.nodered.org/t/how-to-disable-enable-ui-tab-from-ui/3848)

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**Author:** [@Bambulko](https://discourse.nodered.org/u/Bambulko)\
**Replies:** 16\
**Last updated:** [28 September 2020 15:42 UTC](https://discourse.nodered.org/t/how-to-disable-enable-ui-tab-from-ui/3848 "2020-09-28T15:42:54Z")

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hi I want to disable / enable tabs in dependence on login. it is possible? thanks

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## [Issue with GIT repository using ssh-keys](https://discourse.nodered.org/t/issue-with-git-repository-using-ssh-keys/33030)

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**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 6\
**Last updated:** [28 September 2020 15:03 UTC](https://discourse.nodered.org/t/issue-with-git-repository-using-ssh-keys/33030 "2020-09-28T15:03:48Z")

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Hi, I'm stuck integrating a GIT repository using ssh-keys. I have the NodeRed 1.1.3 (latest now) and a gitea Installation 1.12.4 (latest now) When I try to clone a repo from the GIT server it failes. I'm using the G…

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## [JSON to XML. xml truncated](https://discourse.nodered.org/t/json-to-xml-xml-truncated/33448)

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**Author:** [@crester](https://discourse.nodered.org/u/crester)\
**Replies:** 2\
**Last updated:** [28 September 2020 14:34 UTC](https://discourse.nodered.org/t/json-to-xml-xml-truncated/33448 "2020-09-28T14:34:36Z")

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Hello I am trying to convert a JSON string to XML but it doesn't work I haven't good knowledge of JSON nor XML but when I parse this string, the XML truncates at last and I am unable to find out what is the problem S…

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## [Data acquistions in synchronous way](https://discourse.nodered.org/t/data-acquistions-in-synchronous-way/33286)

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**Author:** [@vishalk](https://discourse.nodered.org/u/vishalk)\
**Replies:** 13\
**Last updated:** [28 September 2020 13:39 UTC](https://discourse.nodered.org/t/data-acquistions-in-synchronous-way/33286 "2020-09-28T13:39:23Z")

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Hello, I am using Node red version v1.1.3 I am getting resistance data from PLC and then using Node-red for acquistion and monitoring with data on grafana. But, all data are not synchronized.I want data to be synchron…

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## [Checking multiple String/numbers in if-statement](https://discourse.nodered.org/t/checking-multiple-string-numbers-in-if-statement/33445)

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**Author:** [@ZsomborPiros](https://discourse.nodered.org/u/ZsomborPiros)\
**Replies:** 4\
**Last updated:** [28 September 2020 12:38 UTC](https://discourse.nodered.org/t/checking-multiple-string-numbers-in-if-statement/33445 "2020-09-28T12:38:41Z")

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Hi. Im struggling since over 1 day with my if statements. i tried anything i know from java but it doesn´t works please help me. Here´s my function node: var valueFromTrigger1 = parseInt(msg.payload.Trig0); var valueFr…

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## [Grief with the switch node](https://discourse.nodered.org/t/grief-with-the-switch-node/33442)

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**Author:** [@little\_rich](https://discourse.nodered.org/u/little_rich)\
**Replies:** 4\
**Last updated:** [28 September 2020 12:23 UTC](https://discourse.nodered.org/t/grief-with-the-switch-node/33442 "2020-09-28T12:23:25Z")

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Hi, I have some data feeding into the switch node which is in this format msg.payload.rows\[0\].current\_price msg.payload.rows\[0\].ref\_price msg.payload.rows\[0\].quantity I am trying to use the switch command to filter …

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## [InfluxDB errors - q-gate and check InfluxDB write is completed OK](https://discourse.nodered.org/t/influxdb-errors-q-gate-and-check-influxdb-write-is-completed-ok/33283)

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**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 7\
**Last updated:** [28 September 2020 12:02 UTC](https://discourse.nodered.org/t/influxdb-errors-q-gate-and-check-influxdb-write-is-completed-ok/33283 "2020-09-28T12:02:42Z")

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Hi, I am looking for some pointers if possible please. As my Home Control flow application has got more complicated, I am suffering more and more from errors with InfluxDB. \[error\] \[influxdb in:bf343c7a.e41d4\] Error: …

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## [Access-Control-Allow-Origin](https://discourse.nodered.org/t/access-control-allow-origin/32984)

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**Author:** [@Devbrat](https://discourse.nodered.org/u/Devbrat)\
**Replies:** 8\
**Last updated:** [28 September 2020 10:14 UTC](https://discourse.nodered.org/t/access-control-allow-origin/32984 "2020-09-28T10:14:37Z")

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I have added below code in RED.js to enables header for Node-RED. But Access-Control-Allow-Origin header is not coming as http://google.com/ . its coming as \*. Other headers are reflecting in node-red. app.use(function…

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## [Doorbell via google assistent](https://discourse.nodered.org/t/doorbell-via-google-assistent/32637)

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**Author:** [@KoenH](https://discourse.nodered.org/u/KoenH)\
**Replies:** 2\
**Last updated:** [28 September 2020 08:24 UTC](https://discourse.nodered.org/t/doorbell-via-google-assistent/32637 "2020-09-28T08:24:29Z")

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hello all, I want to purchase a video doorbell, that i want to couple to my domotic system. I already have a NodeRed in the system, that is working well. I see a lot of doorbells having a google assistent interface. …

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## [Sort ui\_table data by a datetime programatically at the start](https://discourse.nodered.org/t/sort-ui-table-data-by-a-datetime-programatically-at-the-start/33044)

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**Author:** [@JVergara](https://discourse.nodered.org/u/JVergara)\
**Replies:** 2\
**Last updated:** [28 September 2020 08:20 UTC](https://discourse.nodered.org/t/sort-ui-table-data-by-a-datetime-programatically-at-the-start/33044 "2020-09-28T08:20:33Z")

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Hello together, I am now a little block with this object. I want to sort by timestamp all the data of my ui\_table, but I want to do at the initial moment ( when loaded). I have found this after Tabulator documentation: …

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## [Node-red Status Indicator not updating after deploy](https://discourse.nodered.org/t/node-red-status-indicator-not-updating-after-deploy/33413)

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**Author:** [@rholmesa](https://discourse.nodered.org/u/rholmesa)\
**Replies:** 3\
**Last updated:** [28 September 2020 07:33 UTC](https://discourse.nodered.org/t/node-red-status-indicator-not-updating-after-deploy/33413 "2020-09-28T07:33:41Z")

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I have a newly created RasPi on Raspian running the latest version of Node-Red and Mosquitto - all freshly installed. Everything is operating fine BUT ... When I deploy a change, the status indicators on the MQTT nodes…

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## [How to create an unique node ID](https://discourse.nodered.org/t/how-to-create-an-unique-node-id/33434)

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**Author:** [@minhhn0205](https://discourse.nodered.org/u/minhhn0205)\
**Replies:** 4\
**Last updated:** [28 September 2020 07:31 UTC](https://discourse.nodered.org/t/how-to-create-an-unique-node-id/33434 "2020-09-28T07:31:00Z")

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Hi, I create a flow ＞ export to json file. Then import this flow on another PC and the node id is changed. How do I make the node id unique when creating a flow, immutable when importing flow on another PC? Thanks…

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## [How to break array-loop node](https://discourse.nodered.org/t/how-to-break-array-loop-node/33367)

<div class="topic-metadata">

**Author:** [@minhhn0205](https://discourse.nodered.org/u/minhhn0205)\
**Replies:** 11\
**Last updated:** [28 September 2020 05:08 UTC](https://discourse.nodered.org/t/how-to-break-array-loop-node/33367 "2020-09-28T05:08:26Z")

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I use the array-loop node to browse the array, I tried setting the node to break the array midway but it didn't work. Please tell me! Thanks. For example, output to value C will break the array and continue to proces…

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## [Dashboard Deploy](https://discourse.nodered.org/t/dashboard-deploy/33269)

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**Author:** [@dounaite](https://discourse.nodered.org/u/dounaite)\
**Replies:** 2\
**Last updated:** [28 September 2020 02:01 UTC](https://discourse.nodered.org/t/dashboard-deploy/33269 "2020-09-28T02:01:50Z")

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hello,everyone Can nodered dashboard be deployed to public ip? i read some contents from github : This Dashboard does NOT support multiple individual users. It is a view of the status of the underlying Node-RED flow, …

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## [An \*even better\* watchdog node](https://discourse.nodered.org/t/an-even-better-watchdog-node/33426)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [28 September 2020 02:00 UTC](https://discourse.nodered.org/t/an-even-better-watchdog-node/33426 "2020-09-28T02:00:28Z")

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I seem to be recently bombarded with things which are variable. The trigger node (default) doesn't have the option to control the time to which it is set for the trigger to happen. This has caught me a few times and it…

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## [Subflow - Palette Tooltip](https://discourse.nodered.org/t/subflow-palette-tooltip/33427)

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**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 0\
**Last updated:** [28 September 2020 00:05 UTC](https://discourse.nodered.org/t/subflow-palette-tooltip/33427 "2020-09-28T00:05:55Z")

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I have created a set of subflows and added a description for each one in the subflow properties. I was expecting to see those descriptions in tooltip box when hovering the mouse over the subflow node in the palette. T…

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## [Google nest SDM api](https://discourse.nodered.org/t/google-nest-sdm-api/33425)

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**Author:** [@Kenny-JTK](https://discourse.nodered.org/u/Kenny-JTK)\
**Replies:** 0\
**Last updated:** [27 September 2020 21:46 UTC](https://discourse.nodered.org/t/google-nest-sdm-api/33425 "2020-09-27T21:46:11Z")

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Just wanted to share something. Google released a SDM api in their cloud. Which allows you to control the nest thermostat after killing of the original works with nest. I've tested some things over the weekend and for me…

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## [Feature suggestion "Send to back"](https://discourse.nodered.org/t/feature-suggestion-send-to-back/33391)

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**Author:** [@ecrode](https://discourse.nodered.org/u/ecrode)\
**Replies:** 4\
**Last updated:** [27 September 2020 21:22 UTC](https://discourse.nodered.org/t/feature-suggestion-send-to-back/33391 "2020-09-27T21:22:32Z")

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I like hiding the debug outputs behind the functions, to allow for easy echo of input data without taking up much space: Issue is that there is no easy way to "send" one item behind another, so I'd need to cut the fu…

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## [How to fix all errors?](https://discourse.nodered.org/t/how-to-fix-all-errors/33418)

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**Author:** [@Zerg](https://discourse.nodered.org/u/Zerg)\
**Replies:** 2\
**Last updated:** [27 September 2020 21:01 UTC](https://discourse.nodered.org/t/how-to-fix-all-errors/33418 "2020-09-27T21:01:40Z")

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I deleted everything, but, it keep writing to me an errors! What else I need to delete so that it don't write errors? And how to remove all items from number 2 on the my screenshot?

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## [Vacation timer: Problems throwing boolean On/Off payloads](https://discourse.nodered.org/t/vacation-timer-problems-throwing-boolean-on-off-payloads/33328)

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**Author:** [@KasimirGuenter1259](https://discourse.nodered.org/u/KasimirGuenter1259)\
**Replies:** 14\
**Last updated:** [27 September 2020 20:43 UTC](https://discourse.nodered.org/t/vacation-timer-problems-throwing-boolean-on-off-payloads/33328 "2020-09-27T20:43:24Z")

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I want to use the vacation timer. Using the default options: ON command: payload is string "On", OFF command: payload is string "Off" everything is working well. Payload is "On" or "Off", depending on vacation timer st…

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## [Problem installation Node-red with node.js 12](https://discourse.nodered.org/t/problem-installation-node-red-with-node-js-12/33401)

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**Author:** [@FSN](https://discourse.nodered.org/u/FSN)\
**Replies:** 1\
**Last updated:** [27 September 2020 18:54 UTC](https://discourse.nodered.org/t/problem-installation-node-red-with-node-js-12/33401 "2020-09-27T18:54:17Z")

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Good morning everybody I would like to install node-red in win10 1-. I installed Node.js 12 2-. I start Node.js command prompt and i executed npm install -g --unsafe-perm node-red and it was finished the installatio…

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## [Link from subflow to flow... possible?](https://discourse.nodered.org/t/link-from-subflow-to-flow-possible/16062)

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**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 3\
**Last updated:** [27 September 2020 17:38 UTC](https://discourse.nodered.org/t/link-from-subflow-to-flow-possible/16062 "2020-09-27T17:38:41Z")

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Hi, I'm somewhat of a noob. I'd been creating subflows to separate different types of flow components, but I recently discovered that you can link regular flows, so I started just creating regular flows and using links…

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## [Create PDF from HTML](https://discourse.nodered.org/t/create-pdf-from-html/33414)

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**Author:** [@RaiRoo](https://discourse.nodered.org/u/RaiRoo)\
**Replies:** 0\
**Last updated:** [27 September 2020 16:45 UTC](https://discourse.nodered.org/t/create-pdf-from-html/33414 "2020-09-27T16:45:46Z")

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Hi, I try to create a PDF from HTM - and installed node-red-contrib-pdf for this. During installation I get errors 2020-09-27T16:28:45.619Z installieren : node-red-contrib-pdf 0.1.0 2020-09-27T16:28:45.624Z npm instal…

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## [I can't find a Node with constanstly error](https://discourse.nodered.org/t/i-cant-find-a-node-with-constanstly-error/33399)

<div class="topic-metadata">

**Author:** [@Jotarod](https://discourse.nodered.org/u/Jotarod)\
**Replies:** 5\
**Last updated:** [27 September 2020 15:44 UTC](https://discourse.nodered.org/t/i-cant-find-a-node-with-constanstly-error/33399 "2020-09-27T15:44:54Z")

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Dear Team, I am getting contanstly an error like you can see in the image attached below. I have been looking manualy (each one) and using the search tool the node : 64f63121.c5dec without success... I have restarted …

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## [\[Solved\] Attempt to clone node module gives errors](https://discourse.nodered.org/t/solved-attempt-to-clone-node-module-gives-errors/33383)

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**Author:** [@JosephDe](https://discourse.nodered.org/u/JosephDe)\
**Replies:** 7\
**Last updated:** [27 September 2020 14:19 UTC](https://discourse.nodered.org/t/solved-attempt-to-clone-node-module-gives-errors/33383 "2020-09-27T14:19:29Z")

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Can anyone help me identify where I'm doing wrong, after creating the node it shows message error Type already registered in the management palette. I will really appreciated any help to resolve this issue. Kind rega…

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## [How to set credentialSecret asynchronously?](https://discourse.nodered.org/t/how-to-set-credentialsecret-asynchronously/33410)

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**Author:** [@astanet](https://discourse.nodered.org/u/astanet)\
**Replies:** 0\
**Last updated:** [27 September 2020 14:10 UTC](https://discourse.nodered.org/t/how-to-set-credentialsecret-asynchronously/33410 "2020-09-27T14:10:01Z")

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Node-RED is what I really need now. I really enjoy to learn about Node-RED. I'm trying to make a Node-RED app on Google Cloud Platform. I succeeded to invoke some Google APIs with Compute Engine default service accoun…

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## [If statement For Extracting a specific data](https://discourse.nodered.org/t/if-statement-for-extracting-a-specific-data/33405)

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**Author:** [@Amir](https://discourse.nodered.org/u/Amir)\
**Replies:** 0\
**Last updated:** [27 September 2020 12:21 UTC](https://discourse.nodered.org/t/if-statement-for-extracting-a-specific-data/33405 "2020-09-27T12:21:22Z")

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Good morning everyone.... The packet that is sent from the sensor is received by more than one Gateway.... I only need to extract the data from a specific gateway, the way I wrote the code doesn't work, What could be th…

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## [outputLabels based on UI props doesn't get refreshed until UNDO](https://discourse.nodered.org/t/outputlabels-based-on-ui-props-doesnt-get-refreshed-until-undo/33408)

<div class="topic-metadata">

**Author:** [@pitus](https://discourse.nodered.org/u/pitus)\
**Replies:** 0\
**Last updated:** [27 September 2020 13:04 UTC](https://discourse.nodered.org/t/outputlabels-based-on-ui-props-doesnt-get-refreshed-until-undo/33408 "2020-09-27T13:04:21Z")

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This is a weird behavior I just encountered with my custom node that needs to control the number of its outputs depending on users data entered in the editor UI. I've added outputs as well as outputLabels into the defau…

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