# Latest

**URL:** https://discourse.nodered.org/latest.md?page=827

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

**Page:** 828

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## [TypeError: callback is not a function](https://discourse.nodered.org/t/typeerror-callback-is-not-a-function/44865)

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**Author:** [@Lost](https://discourse.nodered.org/u/Lost)\
**Replies:** 5\
**Last updated:** [29 April 2021 08:46 UTC](https://discourse.nodered.org/t/typeerror-callback-is-not-a-function/44865 "2021-04-29T08:46:52Z")

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Hi. Hope someone can explain why i get the error: TypeError: callback is not a function I have been using an old openhab installation on a RSPI3 where i used nodered (v0.19.5) as the gateway between openhab and "HDL Bu…

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## [Permanent running Node-Red Methods?](https://discourse.nodered.org/t/permanent-running-node-red-methods/44843)

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**Author:** [@Eintracht00](https://discourse.nodered.org/u/Eintracht00)\
**Replies:** 6\
**Last updated:** [29 April 2021 08:40 UTC](https://discourse.nodered.org/t/permanent-running-node-red-methods/44843 "2021-04-29T08:40:49Z")

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Hey which Methods do I have to run my Node-Red automatically and permanent. I made it locally on my Laptop. Now I am thinking about a VM or something like that. Which ways do I have? Pro's & Con's?

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## [Data Conversion - Java Script Expression - EtherNetIP node](https://discourse.nodered.org/t/data-conversion-java-script-expression-ethernetip-node/44787)

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**Author:** [@BrallanH2](https://discourse.nodered.org/u/BrallanH2)\
**Replies:** 7\
**Last updated:** [29 April 2021 08:33 UTC](https://discourse.nodered.org/t/data-conversion-java-script-expression-ethernetip-node/44787 "2021-04-29T08:33:47Z")

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I am reading PLC tags using the Ethernet/IP node. The output is something like: {Recipe.Ingredient\[0\]: 1234.5, Recipe.Ingredient\[1\]: 678.9} There will be hundreds of tags. Right now, I can read them and get a nice log…

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## [Node-red-contrib-dutch-weather Trigger](https://discourse.nodered.org/t/node-red-contrib-dutch-weather-trigger/44914)

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**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\
**Replies:** 2\
**Last updated:** [29 April 2021 07:25 UTC](https://discourse.nodered.org/t/node-red-contrib-dutch-weather-trigger/44914 "2021-04-29T07:25:14Z")

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Goodday everyone, In the description of node-red-contrib-dutch-weather it says that the node needs to be triggered in order for it to work. \*Quote: \* In order to get updated data you have to send a message on the inpu…

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## [Simple voice messages don't work with google home and Node-red-nora](https://discourse.nodered.org/t/simple-voice-messages-dont-work-with-google-home-and-node-red-nora/9040)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 6\
**Last updated:** [29 April 2021 07:03 UTC](https://discourse.nodered.org/t/simple-voice-messages-dont-work-with-google-home-and-node-red-nora/9040 "2021-04-29T07:03:26Z")

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Hello I have created a flow using nora nodes. I have created a nora token, that iuse with my gmail account. I have created some objects (lamp, switch, thermostat,...) in my flow, and I can control them from google hom…

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## [Ui-artless-gauge - Unit Position](https://discourse.nodered.org/t/ui-artless-gauge-unit-position/44839)

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**Author:** [@Jochen1980](https://discourse.nodered.org/u/Jochen1980)\
**Replies:** 2\
**Last updated:** [29 April 2021 06:12 UTC](https://discourse.nodered.org/t/ui-artless-gauge-unit-position/44839 "2021-04-29T06:12:19Z")

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Hi @hotnipi, Hi @all, I'm using the ui-artless-gauge as progress bar in linear mode. Would it be possible to have the unit next to the actual value in case limits are not shown? Cause in this case the unit moves to t…

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## [Initial global variable not working debug undefined](https://discourse.nodered.org/t/initial-global-variable-not-working-debug-undefined/44886)

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**Author:** [@riker65](https://discourse.nodered.org/u/riker65)\
**Replies:** 6\
**Last updated:** [29 April 2021 04:49 UTC](https://discourse.nodered.org/t/initial-global-variable-not-working-debug-undefined/44886 "2021-04-29T04:49:31Z")

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Hi I am having a change node to set a global variable triggery by time inject node wondering why after deployment variable is not defined. checking with debug node what am I missing? \[{"id":"510cbd9c.4b2f24","type"…

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## [Custom Binary string construction help needed](https://discourse.nodered.org/t/custom-binary-string-construction-help-needed/44895)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 8\
**Last updated:** [28 April 2021 23:32 UTC](https://discourse.nodered.org/t/custom-binary-string-construction-help-needed/44895 "2021-04-28T23:32:06Z")

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Good evening all, here is a challenge for the real node-red genuises!! I am working on an RFID project and need to convert decimal values in a binary string, in a specific order, or change base on a start and end indi…

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## [Is It possible to download malicious software with node-red?](https://discourse.nodered.org/t/is-it-possible-to-download-malicious-software-with-node-red/44894)

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**Author:** [@Toster](https://discourse.nodered.org/u/Toster)\
**Replies:** 4\
**Last updated:** [28 April 2021 22:04 UTC](https://discourse.nodered.org/t/is-it-possible-to-download-malicious-software-with-node-red/44894 "2021-04-28T22:04:32Z")

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I have never thought about it and just downloaded random nodes from the "manage pallete" tab. Is It possible? Are those packages checked somehow? Or should i be more careful. Just wondering. Thank you in advance for you…

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## [Diff/merge tool for function nodes code](https://discourse.nodered.org/t/diff-merge-tool-for-function-nodes-code/44021)

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**Author:** [@aschena](https://discourse.nodered.org/u/aschena)\
**Replies:** 5\
**Last updated:** [28 April 2021 21:35 UTC](https://discourse.nodered.org/t/diff-merge-tool-for-function-nodes-code/44021 "2021-04-28T21:35:27Z")

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Hello, I often have to compare different function nodes (within the same tab or different tabs) in order to find their differences out, and transfer some of the differences from one to the other. Actually the easiest w…

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## [Use a template engine in uibuilder](https://discourse.nodered.org/t/use-a-template-engine-in-uibuilder/44861)

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**Author:** [@maxkremmel](https://discourse.nodered.org/u/maxkremmel)\
**Replies:** 3\
**Last updated:** [28 April 2021 21:28 UTC](https://discourse.nodered.org/t/use-a-template-engine-in-uibuilder/44861 "2021-04-28T21:28:22Z")

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Hello is there a way to use a for example a main.html which is the "base" of every webpage. And inside the main.html you can include other html templates, for example a navbar which is on every page the same. I previou…

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## [Enhanced tooltip for the \`inject\` node](https://discourse.nodered.org/t/enhanced-tooltip-for-the-inject-node/44883)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 6\
**Last updated:** [28 April 2021 21:03 UTC](https://discourse.nodered.org/t/enhanced-tooltip-for-the-inject-node/44883 "2021-04-28T21:03:27Z")

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Currently, when the cursor hovers over the output port of an inject node, the tooltip displays the output message by property and type: It would be useful if it could show (as much as possible) the actual values of t…

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## [Serial Ascii data](https://discourse.nodered.org/t/serial-ascii-data/44832)

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**Author:** [@JanUlr](https://discourse.nodered.org/u/JanUlr)\
**Replies:** 7\
**Last updated:** [28 April 2021 20:38 UTC](https://discourse.nodered.org/t/serial-ascii-data/44832 "2021-04-28T20:38:34Z")

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Hi, im trying to read serial data from a RS232 device and need help to parse it to respective variables for the GUI. Data is on a format $ISAGM,a.aaa,a.aaa,a.aaa,g.ggg,g.ggg,g.ggg,m.mmm,m.mmm,m.mmm\*xx Any suggestions …

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## [Send QR code via email](https://discourse.nodered.org/t/send-qr-code-via-email/44813)

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**Author:** [@torrent](https://discourse.nodered.org/u/torrent)\
**Replies:** 11\
**Last updated:** [28 April 2021 19:55 UTC](https://discourse.nodered.org/t/send-qr-code-via-email/44813 "2021-04-28T19:55:12Z")

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Hi, I want to send QR via email to user. However, I am stuck with coverting output of QR Code module to Buffer or Base64, which can be used to send to user via email. I am using now this QRCode module: QRCode module A…

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## [Need a nudge in the right direction with msg.params](https://discourse.nodered.org/t/need-a-nudge-in-the-right-direction-with-msg-params/44890)

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**Author:** [@brendonhatcher](https://discourse.nodered.org/u/brendonhatcher)\
**Replies:** 1\
**Last updated:** [28 April 2021 20:03 UTC](https://discourse.nodered.org/t/need-a-nudge-in-the-right-direction-with-msg-params/44890 "2021-04-28T20:03:34Z")

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Hi I am using the Spotify node, and having a lot of fun! I have simple nodes - play, pause, skip working. Now I need to use the node with some additional input parameters. I have found the documentation at the bottom…

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## [Node Red Se queda cargando controladores/Node Red keeps loading plugins](https://discourse.nodered.org/t/node-red-se-queda-cargando-controladores-node-red-keeps-loading-plugins/44882)

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**Author:** [@EduardoM](https://discourse.nodered.org/u/EduardoM)\
**Replies:** 6\
**Last updated:** [28 April 2021 19:55 UTC](https://discourse.nodered.org/t/node-red-se-queda-cargando-controladores-node-red-keeps-loading-plugins/44882 "2021-04-28T19:55:12Z")

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que puedo hacer?

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## [Running node-red flows without node-red?](https://discourse.nodered.org/t/running-node-red-flows-without-node-red/44821)

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**Author:** [@sad\_cyrano](https://discourse.nodered.org/u/sad_cyrano)\
**Replies:** 2\
**Last updated:** [28 April 2021 18:54 UTC](https://discourse.nodered.org/t/running-node-red-flows-without-node-red/44821 "2021-04-28T18:54:29Z")

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first of all, I would like to apologize for this absolute beginner question, but I can not find a suitable answer. If I have developed a program with Node-RED, can I continue to develop the generated javascript code with…

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## [Compare msg.payload numbers](https://discourse.nodered.org/t/compare-msg-payload-numbers/44867)

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**Author:** [@martini\_geek](https://discourse.nodered.org/u/martini_geek)\
**Replies:** 2\
**Last updated:** [28 April 2021 15:56 UTC](https://discourse.nodered.org/t/compare-msg-payload-numbers/44867 "2021-04-28T15:56:31Z")

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I have 2 function nodes which gives output as - f1 node output : msg.payload.number - 123 f2 node output : msg.payload.number - 456 if f1==f2 then popup=employeeid. This should show a popup with employeeid in worldma…

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## [Trigger an action when payload equals a 0](https://discourse.nodered.org/t/trigger-an-action-when-payload-equals-a-0/44876)

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**Author:** [@dcaccount](https://discourse.nodered.org/u/dcaccount)\
**Replies:** 2\
**Last updated:** [28 April 2021 15:35 UTC](https://discourse.nodered.org/t/trigger-an-action-when-payload-equals-a-0/44876 "2021-04-28T15:35:04Z")

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Hello, I would need a Node Red flow able to monitor a MQTT payload and to perform an action (for instance send a mail) just once when the payload is detected equal to 0. I have tried with the switch node but it keeps o…

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## [Whatsapp messages](https://discourse.nodered.org/t/whatsapp-messages/14141)

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**Author:** [@fks\_david](https://discourse.nodered.org/u/fks_david)\
**Replies:** 20\
**Last updated:** [28 April 2021 15:31 UTC](https://discourse.nodered.org/t/whatsapp-messages/14141 "2021-04-28T15:31:54Z")

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Hey! Is there a way to send messages on whatsapp with node-RED? I would like to make an application example the following way: I want to make a basic flow, where there is only one DI ( it could be more later but for n…

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## [Send value of input text when click on button](https://discourse.nodered.org/t/send-value-of-input-text-when-click-on-button/10015)

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**Author:** [@hebergeweb](https://discourse.nodered.org/u/hebergeweb)\
**Replies:** 8\
**Last updated:** [28 April 2021 14:52 UTC](https://discourse.nodered.org/t/send-value-of-input-text-when-click-on-button/10015 "2021-04-28T14:52:40Z")

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how to send value of input text when click on button? the message is sent directly when I enter a value on input text without clicking the button.

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## [Detect automatically user enter UI](https://discourse.nodered.org/t/detect-automatically-user-enter-ui/44303)

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**Author:** [@Franco](https://discourse.nodered.org/u/Franco)\
**Replies:** 7\
**Last updated:** [28 April 2021 13:49 UTC](https://discourse.nodered.org/t/detect-automatically-user-enter-ui/44303 "2021-04-28T13:49:18Z")

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Hello, I need to detect when the user enters to the /ui, to send in that moment a msg through some nodes. I tried to do it using a http in node, but it did not work. What can I do to solve this? Regards, Franco

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## [HTTP IN node, retrieve my raw data](https://discourse.nodered.org/t/http-in-node-retrieve-my-raw-data/44853)

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**Author:** [@Archi](https://discourse.nodered.org/u/Archi)\
**Replies:** 5\
**Last updated:** [28 April 2021 12:34 UTC](https://discourse.nodered.org/t/http-in-node-retrieve-my-raw-data/44853 "2021-04-28T12:34:14Z")

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Hello everyone, I'm new on Node-red and I'm struggling for now 1 week on a simple problem. To quickly sum up my situation, I'm sending data through an HTTP POST like this: The thing is that I need to retrieve my da…

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## [Use modebus node -- modbus/tcp --](https://discourse.nodered.org/t/use-modebus-node-modbus-tcp/44856)

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**Author:** [@lyred](https://discourse.nodered.org/u/lyred)\
**Replies:** 4\
**Last updated:** [28 April 2021 12:12 UTC](https://discourse.nodered.org/t/use-modebus-node-modbus-tcp/44856 "2021-04-28T12:12:12Z")

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hello team, on node red I want to use the tcp modbus to have the data of at least 10 sensors, for this I want to use a Flex Getter modbus and configure it in TCP by giving it the sensor address and the port. is that th…

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## [Hi i'm sending a msg type (object or string) from node-red using serial mobus with shneider iem-3000 over mqtt but the results is invalid msg (I'm using "mqtt fx")](https://discourse.nodered.org/t/hi-im-sending-a-msg-type-object-or-string-from-node-red-using-serial-mobus-with-shneider-iem-3000-over-mqtt-but-the-results-is-invalid-msg-im-using-mqtt-fx/44854)

<div class="topic-metadata">

**Author:** [@fa7](https://discourse.nodered.org/u/fa7)\
**Replies:** 6\
**Last updated:** [28 April 2021 11:27 UTC](https://discourse.nodered.org/t/hi-im-sending-a-msg-type-object-or-string-from-node-red-using-serial-mobus-with-shneider-iem-3000-over-mqtt-but-the-results-is-invalid-msg-im-using-mqtt-fx/44854 "2021-04-28T11:27:41Z")

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Hi i'm sending a msg type (object or string) from node-red using serial mobus with shneider iem-3000 over mqtt but the results is invalid msg (I'm using "mqtt fx")

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## [Is there any web designer around, able to draw nice art for custom dashboard](https://discourse.nodered.org/t/is-there-any-web-designer-around-able-to-draw-nice-art-for-custom-dashboard/44328)

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**Author:** [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Replies:** 15\
**Last updated:** [28 April 2021 11:21 UTC](https://discourse.nodered.org/t/is-there-any-web-designer-around-able-to-draw-nice-art-for-custom-dashboard/44328 "2021-04-28T11:21:52Z")

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I am pretty bad on art. But mostly I can replicate things when the art is created by somebody. Well it depends of course but if the designer is web artist with corresponding knowledge base, things mostly turn out nicely. …

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## [Alexa Remote2 stops talking](https://discourse.nodered.org/t/alexa-remote2-stops-talking/32931)

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**Author:** [@wecoyote5](https://discourse.nodered.org/u/wecoyote5)\
**Replies:** 56\
**Last updated:** [28 April 2021 11:19 UTC](https://discourse.nodered.org/t/alexa-remote2-stops-talking/32931 "2021-04-28T11:19:41Z")

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Hi all, I apologize if this has been addressed in another thread but I couldn't find it if it does exist. I'm running the current version of remote2 and every week or so it'll stop talking. Everything else seems to work…

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## [How to Extracting a binary integer data from a msg.payload?](https://discourse.nodered.org/t/how-to-extracting-a-binary-integer-data-from-a-msg-payload/44844)

<div class="topic-metadata">

**Author:** [@Fef\_38](https://discourse.nodered.org/u/Fef_38)\
**Replies:** 2\
**Last updated:** [28 April 2021 10:45 UTC](https://discourse.nodered.org/t/how-to-extracting-a-binary-integer-data-from-a-msg-payload/44844 "2021-04-28T10:45:50Z")

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Hi, I’m a beginner and I don’t understand what happene with “binary” node I receive from MQTT node a msg.payload in binary format: the fields are 12 32bit integers in little endian, like bellow: F0CC0100581B0000D02F0…

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## [Smooth Hide/Show Transitions - uicontrol](https://discourse.nodered.org/t/smooth-hide-show-transitions-uicontrol/44850)

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**Author:** [@aitor](https://discourse.nodered.org/u/aitor)\
**Replies:** 1\
**Last updated:** [28 April 2021 10:42 UTC](https://discourse.nodered.org/t/smooth-hide-show-transitions-uicontrol/44850 "2021-04-28T10:42:33Z")

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Hello there, I recently have been familiarizing with the ui control's options to hide/show ui groups and I was wondering if there was any property to make the hide/show actions with a "fade-in/fade-out" transition. Any…

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## [\[solved\] Change color of template node with variable](https://discourse.nodered.org/t/solved-change-color-of-template-node-with-variable/44835)

<div class="topic-metadata">

**Author:** [@steinerma](https://discourse.nodered.org/u/steinerma)\
**Replies:** 8\
**Last updated:** [28 April 2021 10:16 UTC](https://discourse.nodered.org/t/solved-change-color-of-template-node-with-variable/44835 "2021-04-28T10:16:57Z")

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hi, i store the value of the variable (color1) in the flow. i would like to retrieve this value in the template node. What am I doing wrong? value of color1 = rgba(208,22,22.1) \<style\> var color1 = flow.get("color1…

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