# Latest

**URL:** https://discourse.nodered.org/latest.md?page=428

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

**Page:** 429

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## [Filter incoming MQTT messages with same topic](https://discourse.nodered.org/t/filter-incoming-mqtt-messages-with-same-topic/72932)

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**Author:** [@elmo2002](https://discourse.nodered.org/u/elmo2002)\
**Replies:** 23\
**Last updated:** [31 December 2022 05:16 UTC](https://discourse.nodered.org/t/filter-incoming-mqtt-messages-with-same-topic/72932 "2022-12-31T05:16:44Z")

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Hi, I am trying to filter incoming MQTT messages that all have the same topic, however different payload objects. I have a rtl\_433 that i am using to pick up the signal from my outdoor weather station. I then wish to ta…

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## [Node-Red with Allen Bradley PLC](https://discourse.nodered.org/t/node-red-with-allen-bradley-plc/72446)

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**Author:** [@TanveerSaleh](https://discourse.nodered.org/u/TanveerSaleh)\
**Replies:** 8\
**Last updated:** [31 December 2022 03:34 UTC](https://discourse.nodered.org/t/node-red-with-allen-bradley-plc/72446 "2022-12-31T03:34:57Z")

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Hello All, I am a university lecturer teaching industrial automation. We teach RSLogix PLC programming for Allen Bradley PLCs. We are now trying to integrate Node-red with the physical PLCs using node-red-contrib-pccc. …

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## [Can a node property be an object?](https://discourse.nodered.org/t/can-a-node-property-be-an-object/72968)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 11\
**Last updated:** [30 December 2022 23:09 UTC](https://discourse.nodered.org/t/can-a-node-property-be-an-object/72968 "2022-12-30T23:09:27Z")

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I am trying to create a generic node for uibuilder that is capable of creating many different HTML elements, some of which may be compound (e.g. multiple HTML elements). For this I need to be able to have a variable set…

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## [Saving a msg.payload value as an integer - Help needed](https://discourse.nodered.org/t/saving-a-msg-payload-value-as-an-integer-help-needed/72973)

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**Author:** [@championc](https://discourse.nodered.org/u/championc)\
**Replies:** 4\
**Last updated:** [30 December 2022 22:58 UTC](https://discourse.nodered.org/t/saving-a-msg-payload-value-as-an-integer-help-needed/72973 "2022-12-30T22:58:14Z")

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I have a global value which is an integer. I am passing it to a JOIN node before saving it to an Influxdb, but it appears to be saving as a string. I've sent the data from JOIN into a Debug Node, which shows the JSON d…

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## [Setting this.credentials.someKey = undefined has no affect](https://discourse.nodered.org/t/setting-this-credentials-somekey-undefined-has-no-affect/72971)

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**Author:** [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Replies:** 2\
**Last updated:** [30 December 2022 22:51 UTC](https://discourse.nodered.org/t/setting-this-credentials-somekey-undefined-has-no-affect/72971 "2022-12-30T22:51:24Z")

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So... I have some very specific value handling (I am migrating a sizeable project to Typescript) I am using a configuration node for most of my configuration. In this config, I have some value manipulation on the one…

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## [Anybody experimenting with node-red-mcu?](https://discourse.nodered.org/t/anybody-experimenting-with-node-red-mcu/71836)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 31\
**Last updated:** [30 December 2022 22:41 UTC](https://discourse.nodered.org/t/anybody-experimenting-with-node-red-mcu/71836 "2022-12-30T22:41:07Z")

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Hi folks, So many interesting things, so less free time... This winter I need to install a lot of sensors in my home. Currently I am using EspEasy on my ESP32 boards, and I am very pleased with it. But my ultimate dr…

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## [Pdfmake returns always blank pdf even with the example flow](https://discourse.nodered.org/t/pdfmake-returns-always-blank-pdf-even-with-the-example-flow/72893)

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**Author:** [@DidoMarchet](https://discourse.nodered.org/u/DidoMarchet)\
**Replies:** 2\
**Last updated:** [30 December 2022 21:05 UTC](https://discourse.nodered.org/t/pdfmake-returns-always-blank-pdf-even-with-the-example-flow/72893 "2022-12-30T21:05:37Z")

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Hi guys, I'm trying to generate a pdf from an html template and get it via api url. So I use pdfmake and I generate the pdf of the example (I rename the pdf bordero.pdf). \[ { "id": "ba55707c1c8a4554", …

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## [Can someone help me, I'm trying to do the Retweet function](https://discourse.nodered.org/t/can-someone-help-me-im-trying-to-do-the-retweet-function/72953)

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**Author:** [@tamasvar](https://discourse.nodered.org/u/tamasvar)\
**Replies:** 1\
**Last updated:** [30 December 2022 21:16 UTC](https://discourse.nodered.org/t/can-someone-help-me-im-trying-to-do-the-retweet-function/72953 "2022-12-30T21:16:14Z")

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I tried to extend this code with the function : I uploaded my own version but this is the error: can anyone help?

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## [Date picker -\> flow context gives 'undefined'](https://discourse.nodered.org/t/date-picker-flow-context-gives-undefined/72918)

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**Author:** [@nograin](https://discourse.nodered.org/u/nograin)\
**Replies:** 4\
**Last updated:** [30 December 2022 19:52 UTC](https://discourse.nodered.org/t/date-picker-flow-context-gives-undefined/72918 "2022-12-30T19:52:27Z")

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i'm struggling with setting a date range from UI for building an URL for an API request with it. while debugging, i reduced it to the bare minimum, or what i think it is: the date picker is set to 'send to flow.date…

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## [Web access to the settings file](https://discourse.nodered.org/t/web-access-to-the-settings-file/72929)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [30 December 2022 17:44 UTC](https://discourse.nodered.org/t/web-access-to-the-settings-file/72929 "2022-12-30T17:44:06Z")

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While Sean was helping me I got stuck. \<IP address\>:1880/settings (edited for clarity) Unauthorized How do I get to that page then? There IS a password set on NR.

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## [Trying to track down an error in a function node](https://discourse.nodered.org/t/trying-to-track-down-an-error-in-a-function-node/72850)

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**Author:** [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Replies:** 36\
**Last updated:** [30 December 2022 17:39 UTC](https://discourse.nodered.org/t/trying-to-track-down-an-error-in-a-function-node/72850 "2022-12-30T17:39:19Z")

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Inside the edit flogger node you can choose between different levels : ERROR,WARN,INFO,DEBUG and TRACE. What are supposed to be these options? I changed between them, but I cannot see any differences. In the log file t…

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## [Otdm - deb to do Node-red?](https://discourse.nodered.org/t/otdm-deb-to-do-node-red/72600)

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**Author:** [@yOyOeK1](https://discourse.nodered.org/u/yOyOeK1)\
**Replies:** 8\
**Last updated:** [30 December 2022 17:35 UTC](https://discourse.nodered.org/t/otdm-deb-to-do-node-red/72600 "2022-12-30T17:35:09Z")

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I'm experimenting with a idea of making more automation in processes of installing flows. There is couple of topic on forum. But this is something differnt? otdm - oiyshTerminal deb Manager ok. deb as a standard is a …

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## [How can I update Node-Red Application in an offline Environment?](https://discourse.nodered.org/t/how-can-i-update-node-red-application-in-an-offline-environment/72821)

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**Author:** [@joshinger](https://discourse.nodered.org/u/joshinger)\
**Replies:** 5\
**Last updated:** [30 December 2022 16:45 UTC](https://discourse.nodered.org/t/how-can-i-update-node-red-application-in-an-offline-environment/72821 "2022-12-30T16:45:59Z")

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I would like to update node-red in an offline environment. Node-red is running on a hyper-v ubuntu machine. node.js version is v14.18.0 and node-red version is 2.0.6. I would like to update node-red to version 3.0.2. I…

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## [Accessing node red container using i'ts host name](https://discourse.nodered.org/t/accessing-node-red-container-using-its-host-name/72780)

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**Author:** [@matbli](https://discourse.nodered.org/u/matbli)\
**Replies:** 3\
**Last updated:** [30 December 2022 16:44 UTC](https://discourse.nodered.org/t/accessing-node-red-container-using-its-host-name/72780 "2022-12-30T16:44:54Z")

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Hi, I have set up a docker ipvlan on my Rpi and started one (or several) node-red container(s) using this ipvlan, and it gets its own IP address on my LAN and node-red is accessible using this IP address from anywhere o…

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## [XML decoding data from SONG (extracted from db)](https://discourse.nodered.org/t/xml-decoding-data-from-song-extracted-from-db/72957)

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**Author:** [@Felix](https://discourse.nodered.org/u/Felix)\
**Replies:** 4\
**Last updated:** [30 December 2022 13:56 UTC](https://discourse.nodered.org/t/xml-decoding-data-from-song-extracted-from-db/72957 "2022-12-30T13:56:02Z")

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Hello all. I am newbie here, but I have little experiences with node-red. So, please, I need a help, with extraction of data parsed from XML. I think, data was parsed sucessfuly, but at the end I need only see (in text…

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## [Problems overwriting Influx data node-red-contrib-influxdb](https://discourse.nodered.org/t/problems-overwriting-influx-data-node-red-contrib-influxdb/72895)

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**Author:** [@markusgg](https://discourse.nodered.org/u/markusgg)\
**Replies:** 7\
**Last updated:** [30 December 2022 13:25 UTC](https://discourse.nodered.org/t/problems-overwriting-influx-data-node-red-contrib-influxdb/72895 "2022-12-30T13:25:33Z")

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Hi, i'm using NodeRed 3.0.2 with node-red-contrib-influxdb. I've build a small flow which writes the values of a Form to an Influx Database (V2.5). As far as i know, if only the value changes Influx overwrites the ex…

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## [Input\_select not working with current state node](https://discourse.nodered.org/t/input-select-not-working-with-current-state-node/72926)

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**Author:** [@smile](https://discourse.nodered.org/u/smile)\
**Replies:** 3\
**Last updated:** [30 December 2022 11:53 UTC](https://discourse.nodered.org/t/input-select-not-working-with-current-state-node/72926 "2022-12-30T11:53:09Z")

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Input\_select in HA not working with current state node, input\_number working fine. Is current state node not compatible with Input\_select?

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## [Accessing Data from object that is in array(arrays again in object)](https://discourse.nodered.org/t/accessing-data-from-object-that-is-in-array-arrays-again-in-object/72861)

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**Author:** [@Jhankhana](https://discourse.nodered.org/u/Jhankhana)\
**Replies:** 12\
**Last updated:** [30 December 2022 11:16 UTC](https://discourse.nodered.org/t/accessing-data-from-object-that-is-in-array-arrays-again-in-object/72861 "2022-12-30T11:16:39Z")

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Hello, I am using http request to get data of one month. Screenshots of what I am getting in debug is attached below which is array of objects. Now I want to access minvalue from the first object and maxvalue from last …

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## [Impossible to parse simple array from SQL node](https://discourse.nodered.org/t/impossible-to-parse-simple-array-from-sql-node/72924)

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**Author:** [@kopter2112](https://discourse.nodered.org/u/kopter2112)\
**Replies:** 4\
**Last updated:** [30 December 2022 11:11 UTC](https://discourse.nodered.org/t/impossible-to-parse-simple-array-from-sql-node/72924 "2022-12-30T11:11:15Z")

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I have tried so many different ways, but as far as I understand all documentation, this should work. But it only passes "", and not the value 152 which is returned by the SQL query. This is the query I use (to get the cu…

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## [MC Protocol Timeout / Not connected](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483)

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**Author:** [@vikrimg](https://discourse.nodered.org/u/vikrimg)\
**Replies:** 2\
**Last updated:** [30 December 2022 09:33 UTC](https://discourse.nodered.org/t/mc-protocol-timeout-not-connected/71483 "2022-12-30T09:33:05Z")

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I have a project to read a mitsubishi PLC Q03UDE CPU (installed on machine), I'm trying to read using node-red-contrib-mcprotocol (node-red-contrib-mcprotocol (node) - Node-RED) but still the PLC won't even connect to my…

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## [How to keep the volume of alexa messages constant](https://discourse.nodered.org/t/how-to-keep-the-volume-of-alexa-messages-constant/72920)

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**Author:** [@franz](https://discourse.nodered.org/u/franz)\
**Replies:** 10\
**Last updated:** [30 December 2022 08:59 UTC](https://discourse.nodered.org/t/how-to-keep-the-volume-of-alexa-messages-constant/72920 "2022-12-30T08:59:26Z")

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How to keep the volume of alexa messages constant, always at the same level? Sometimes the volume of the echodot at home is lowered either by voice command or manually with the button and no longer restored, when an…

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## [Scraping and making sense of a website](https://discourse.nodered.org/t/scraping-and-making-sense-of-a-website/72870)

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**Author:** [@Romprod](https://discourse.nodered.org/u/Romprod)\
**Replies:** 3\
**Last updated:** [30 December 2022 09:04 UTC](https://discourse.nodered.org/t/scraping-and-making-sense-of-a-website/72870 "2022-12-30T09:04:31Z")

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Hi, I'm looking for some help to understand how to logically make sense of the output of a website that I'm scraping, it's more of a "how do I organise the data logically due to the random amount of games in each league…

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## [Node-Red will no longer start with uncaught exception](https://discourse.nodered.org/t/node-red-will-no-longer-start-with-uncaught-exception/72922)

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**Author:** [@shimbone](https://discourse.nodered.org/u/shimbone)\
**Replies:** 3\
**Last updated:** [30 December 2022 06:10 UTC](https://discourse.nodered.org/t/node-red-will-no-longer-start-with-uncaught-exception/72922 "2022-12-30T06:10:57Z")

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Log file is below. It looks like it is related to MQTT, however, I have changed nothing with my broker and can connect to it just fine with other clients. I was, however, messing with Roomba configurations from: node-r…

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## [Errors and \`node-id\` values](https://discourse.nodered.org/t/errors-and-node-id-values/72749)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 22\
**Last updated:** [29 December 2022 23:53 UTC](https://discourse.nodered.org/t/errors-and-node-id-values/72749 "2022-12-29T23:53:21Z")

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Ok, I have been down this road before - sorry. I have a SHOCKING memory to what was resolved from my question. What I think: All nodes have a unique id so when they have an error it is given and you/I can search for t…

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## [Date / Format in a script](https://discourse.nodered.org/t/date-format-in-a-script/72919)

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**Author:** [@Lafayette](https://discourse.nodered.org/u/Lafayette)\
**Replies:** 8\
**Last updated:** [29 December 2022 21:59 UTC](https://discourse.nodered.org/t/date-format-in-a-script/72919 "2022-12-29T21:59:13Z")

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Hi, After an HTTP Request I get an array. In this array I've got an object (date) formated like this : 2022-12-09 and I would like to convert it like this 09/12/2022. If I use the Moment Node I know how to do that for o…

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## [How to embed Grafana report into the Dashboard](https://discourse.nodered.org/t/how-to-embed-grafana-report-into-the-dashboard/72879)

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**Author:** [@demokedes](https://discourse.nodered.org/u/demokedes)\
**Replies:** 3\
**Last updated:** [29 December 2022 21:35 UTC](https://discourse.nodered.org/t/how-to-embed-grafana-report-into-the-dashboard/72879 "2022-12-29T21:35:33Z")

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Dear all, I would like to embed Grafana report into my Dashboard. I did it, but I have a problem since my report is not anonymous available. When I past the URL it is asking for the credentials. Without credentials is n…

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## [MQTT, payload, JSON and wanting to check](https://discourse.nodered.org/t/mqtt-payload-json-and-wanting-to-check/72859)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [29 December 2022 21:01 UTC](https://discourse.nodered.org/t/mqtt-payload-json-and-wanting-to-check/72859 "2022-12-29T21:01:27Z")

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(Sort of following on from my other post/question) What I know about MQTT: 1 - basically the payload is the only part of the message that is sent to the other end. (that's about it) If you want to send other stuff, y…

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## [Write multiple topics into one csv - one column per topic](https://discourse.nodered.org/t/write-multiple-topics-into-one-csv-one-column-per-topic/72917)

<div class="topic-metadata">

**Author:** [@Emixer](https://discourse.nodered.org/u/Emixer)\
**Replies:** 1\
**Last updated:** [29 December 2022 20:40 UTC](https://discourse.nodered.org/t/write-multiple-topics-into-one-csv-one-column-per-topic/72917 "2022-12-29T20:40:35Z")

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Hello, I have several sensors subscribed via mqtt. I write the payload with date, time and value in a csv. {"timestamp":1672341312998,"temperature":33.25,"topic":"Sensor 1"} {"timestamp":1672341342848,"temperature":20…

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## [Best way to install Node-Red on openWRT](https://discourse.nodered.org/t/best-way-to-install-node-red-on-openwrt/70439)

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**Author:** [@iotlibre](https://discourse.nodered.org/u/iotlibre)\
**Replies:** 13\
**Last updated:** [29 December 2022 18:18 UTC](https://discourse.nodered.org/t/best-way-to-install-node-red-on-openwrt/70439 "2022-12-29T18:18:40Z")

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I am working with Node-Red on various platforms and now I need to install Node-Red on openWRT What is the best way to install Node-Red on openWRT?

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## [Best Way to organise Triggers and Actions in a node red automation system?](https://discourse.nodered.org/t/best-way-to-organise-triggers-and-actions-in-a-node-red-automation-system/70672)

<div class="topic-metadata">

**Author:** [@itcouldbeL](https://discourse.nodered.org/u/itcouldbeL)\
**Replies:** 4\
**Last updated:** [29 December 2022 17:55 UTC](https://discourse.nodered.org/t/best-way-to-organise-triggers-and-actions-in-a-node-red-automation-system/70672 "2022-12-29T17:55:34Z")

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Hi folks, I'm starting a new project where node red will handle the basic automation tasks. I'll have various inputs ranging from Video Analytics, Door contacts, Switches to name a few. My outputs will Vary from relays…

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