# Latest

**URL:** https://discourse.nodered.org/latest.md?page=618

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

**Page:** 619

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## [Help with \`trigger\` node and sending messages](https://discourse.nodered.org/t/help-with-trigger-node-and-sending-messages/59084)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 15\
**Last updated:** [28 February 2022 23:17 UTC](https://discourse.nodered.org/t/help-with-trigger-node-and-sending-messages/59084 "2022-02-28T23:17:20Z")

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This is odd as the machine on which it seems to work is older than the one on which I want it to work. Basically I want to send two messages. (Cut down version - and I hope it does/will work) \[{"id":"5fd21b95c3b19877"…

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## [Set Time in a DATE PICKER](https://discourse.nodered.org/t/set-time-in-a-date-picker/59144)

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**Author:** [@DemalCal96](https://discourse.nodered.org/u/DemalCal96)\
**Replies:** 1\
**Last updated:** [28 February 2022 22:24 UTC](https://discourse.nodered.org/t/set-time-in-a-date-picker/59144 "2022-02-28T22:24:01Z")

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Hello to all. In my dashboard I am using two data pickers to select a date range that is used to extract data from a database. The problem I have is that I need the first date to be set to time 00:00:00 (at the start of …

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## [Timing message on led display](https://discourse.nodered.org/t/timing-message-on-led-display/59077)

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**Author:** [@maru](https://discourse.nodered.org/u/maru)\
**Replies:** 9\
**Last updated:** [28 February 2022 21:40 UTC](https://discourse.nodered.org/t/timing-message-on-led-display/59077 "2022-02-28T21:40:49Z")

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Hi, I am trying to display sensor values (via MQTT, parsed Json object) on a led matrix display. That works, if I send a single value via POST to the led matrix, but how can it show values like: CO2, Temp, Humidity one …

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## [How to debug "flow stopped due to missing node types"](https://discourse.nodered.org/t/how-to-debug-flow-stopped-due-to-missing-node-types/59139)

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**Author:** [@Luckymethod](https://discourse.nodered.org/u/Luckymethod)\
**Replies:** 2\
**Last updated:** [28 February 2022 21:18 UTC](https://discourse.nodered.org/t/how-to-debug-flow-stopped-due-to-missing-node-types/59139 "2022-02-28T21:18:41Z")

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Hello all, I just started tinkering with nodered with Home Assistant and I stumbled into this issue: Flows stopped due to missing node types. \* position-config Close I did install a scheduler briefly but I decided it…

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## [GPIOs initialize not as expected](https://discourse.nodered.org/t/gpios-initialize-not-as-expected/59042)

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**Author:** [@Hoinz](https://discourse.nodered.org/u/Hoinz)\
**Replies:** 24\
**Last updated:** [28 February 2022 20:49 UTC](https://discourse.nodered.org/t/gpios-initialize-not-as-expected/59042 "2022-02-28T20:49:55Z")

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Hello, All, kindly asking you for support on this matter: I have a Raspi3B and Node Red running on it. 2 GPIOs are currently used as input (GPIO 18 and 27) and read the state of 2 water detectors. These inputs drive …

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## [HTTP-Request "Session Expired"](https://discourse.nodered.org/t/http-request-session-expired/59089)

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**Author:** [@zuasive](https://discourse.nodered.org/u/zuasive)\
**Replies:** 1\
**Last updated:** [28 February 2022 20:06 UTC](https://discourse.nodered.org/t/http-request-session-expired/59089 "2022-02-28T20:06:08Z")

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Team, this ties into my original request but is different so I am creating a new topic. Still working at this temporary middleware app to do a couple of functions using the HTTP-Request node and I've hit a new roadblock.…

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## [Using TomTom Maps](https://discourse.nodered.org/t/using-tomtom-maps/59113)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 7\
**Last updated:** [28 February 2022 20:17 UTC](https://discourse.nodered.org/t/using-tomtom-maps/59113 "2022-02-28T20:17:14Z")

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Hello Everyone, As you may have seen a few posts made by me in order to put together the GPS Tracking solution. And I figured it would be best to separate each topic by post, to avoid clutter and confusion. I have a To…

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## [HTTP-Request cookies](https://discourse.nodered.org/t/http-request-cookies/58889)

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**Author:** [@zuasive](https://discourse.nodered.org/u/zuasive)\
**Replies:** 35\
**Last updated:** [28 February 2022 19:52 UTC](https://discourse.nodered.org/t/http-request-cookies/58889 "2022-02-28T19:52:43Z")

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Need a little help with a challenge. I have posted similar issues but did not go about describing it the best way. I am developing a temporary middleware application in between two applications. I'm basically taking one…

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## [Node-red, raspberry pi and arduino communication issues](https://discourse.nodered.org/t/node-red-raspberry-pi-and-arduino-communication-issues/58115)

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**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 47\
**Last updated:** [28 February 2022 17:33 UTC](https://discourse.nodered.org/t/node-red-raspberry-pi-and-arduino-communication-issues/58115 "2022-02-28T17:33:45Z")

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Hello, first im a dangerous novice here. may not even be in the correct space. I am running my brewing system with node red. I am using 1 wire temp sensors for ketlles, and fermenters. i have the 3 sensors in brew house…

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## ["TypeError: Cannot read property 'decoded\_payload' of undefined"](https://discourse.nodered.org/t/typeerror-cannot-read-property-decoded-payload-of-undefined/59087)

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**Author:** [@rfrancis97](https://discourse.nodered.org/u/rfrancis97)\
**Replies:** 2\
**Last updated:** [28 February 2022 17:13 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-decoded-payload-of-undefined/59087 "2022-02-28T17:13:32Z")

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When I inject code: { "received\_at": "2022-02-27T23:45:18.013631675Z", "uplink\_message": { "session\_key\_id": "AX88sOZsNTkoN5rZ+Rzx/Q==", "f\_port": 1, "f\_cnt": 80, "frm\_payload": "…

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## [How to identify objects using the tool in node-red](https://discourse.nodered.org/t/how-to-identify-objects-using-the-tool-in-node-red/59134)

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**Author:** [@Nam](https://discourse.nodered.org/u/Nam)\
**Replies:** 0\
**Last updated:** [28 February 2022 17:04 UTC](https://discourse.nodered.org/t/how-to-identify-objects-using-the-tool-in-node-red/59134 "2022-02-28T17:04:29Z")

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Hi engineers in the community, I am doing a project that combines Node-red with PLC to classify objects, namely round, square, triangle, can anyone give me suggestions? I refer to OpenCV there is a command " Contour Dect…

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## [How to create submenus in the import or export menu?](https://discourse.nodered.org/t/how-to-create-submenus-in-the-import-or-export-menu/58435)

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**Author:** [@EnergIAM](https://discourse.nodered.org/u/EnergIAM)\
**Replies:** 3\
**Last updated:** [28 February 2022 17:00 UTC](https://discourse.nodered.org/t/how-to-create-submenus-in-the-import-or-export-menu/58435 "2022-02-28T17:00:09Z")

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Hello everyone, I have seen that in the import and export menus you can directly access a submenu with arrows without clicking, I can't find a way to do it, could you guide me please?

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## [Sample buffer Data for testing](https://discourse.nodered.org/t/sample-buffer-data-for-testing/58921)

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**Author:** [@Tinku](https://discourse.nodered.org/u/Tinku)\
**Replies:** 8\
**Last updated:** [28 February 2022 16:17 UTC](https://discourse.nodered.org/t/sample-buffer-data-for-testing/58921 "2022-02-28T16:17:55Z")

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For testing my project without hardware I need a sample buffer data of which is stream of bytes buffer, so I created const sample\_bufferData = Buffer.alloc(300); then the data I received is in this format, for ex: 1st…

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## [Sum of 2 values - flow?](https://discourse.nodered.org/t/sum-of-2-values-flow/59114)

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**Author:** [@Herbert](https://discourse.nodered.org/u/Herbert)\
**Replies:** 2\
**Last updated:** [28 February 2022 14:59 UTC](https://discourse.nodered.org/t/sum-of-2-values-flow/59114 "2022-02-28T14:59:08Z")

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Hello. With other aswers here in the forum I solved my problem to make a sum of 2 MQTT values. See here. \[{"id":"d10147cb.c374a8","type":"debug","z":"5f439c73.c516f4","name":"","active":true,"tosidebar":false,"console…

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## [Join Data by msg.payload.time](https://discourse.nodered.org/t/join-data-by-msg-payload-time/59125)

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**Author:** [@HollaDieWaldfee](https://discourse.nodered.org/u/HollaDieWaldfee)\
**Replies:** 3\
**Last updated:** [28 February 2022 14:42 UTC](https://discourse.nodered.org/t/join-data-by-msg-payload-time/59125 "2022-02-28T14:42:11Z")

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Hi! I was wondering if i can join 2 Sensordata streams by a message payload. so if i get for example from sensor 1: {"time": "09:44:34", "whatever1":123....} and from the second sensor 2: {"time": "09:44:34", "whate…

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## [Node Red application keeps quitting](https://discourse.nodered.org/t/node-red-application-keeps-quitting/59112)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 9\
**Last updated:** [28 February 2022 13:19 UTC](https://discourse.nodered.org/t/node-red-application-keeps-quitting/59112 "2022-02-28T13:19:08Z")

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Hello Everyone, I have installed Node Red into our Oracle Linux (Red Hat based) instance and after a while, the browser just updates and comes up "Safari cannot connect to server" I have to go back into the instance an…

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## [Help me! I have problem "Flows stopped due to missing node types"](https://discourse.nodered.org/t/help-me-i-have-problem-flows-stopped-due-to-missing-node-types/59117)

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**Author:** [@Pakaphon](https://discourse.nodered.org/u/Pakaphon)\
**Replies:** 2\
**Last updated:** [28 February 2022 13:04 UTC](https://discourse.nodered.org/t/help-me-i-have-problem-flows-stopped-due-to-missing-node-types/59117 "2022-02-28T13:04:42Z")

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First of all, I'm not good at English.and only 20 years old, but there is a need to do a project that has never been done before. I have to use google traslate to help me. If something I write looks strange, I'm sorry. …

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## [Uibuilder and vue router](https://discourse.nodered.org/t/uibuilder-and-vue-router/19269)

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**Author:** [@vollnormal](https://discourse.nodered.org/u/vollnormal)\
**Replies:** 8\
**Last updated:** [28 February 2022 12:59 UTC](https://discourse.nodered.org/t/uibuilder-and-vue-router/19269 "2022-02-28T12:59:57Z")

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Hi. Uibuilder has been great so far and I am really get into the swing of it! Thank you very much for that! :+1: I have run into a problem that I am unable to use Vue Router properly. Perhaps it has something to do with…

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## [Getting started to Building a GPS tracking platform](https://discourse.nodered.org/t/getting-started-to-building-a-gps-tracking-platform/59098)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 17\
**Last updated:** [28 February 2022 12:19 UTC](https://discourse.nodered.org/t/getting-started-to-building-a-gps-tracking-platform/59098 "2022-02-28T12:19:52Z")

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Hello everyone, I have submitted posts in the past regarding GPS Tracking and I want to get more proactive to get something into action. I have already had a responsive HTML and App User interface built, which is ready…

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## [OPC UA certificate error](https://discourse.nodered.org/t/opc-ua-certificate-error/59111)

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**Author:** [@rizwan](https://discourse.nodered.org/u/rizwan)\
**Replies:** 0\
**Last updated:** [28 February 2022 11:23 UTC](https://discourse.nodered.org/t/opc-ua-certificate-error/59111 "2022-02-28T11:23:06Z")

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Hello guys, I am a beginner in node-red and trying to read data from OPCUA server via opc ua client node but I am getting an error of "invalid endpoint error: The connection may have been rejected by server". As I t…

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## [GPS tracking platform build](https://discourse.nodered.org/t/gps-tracking-platform-build/59108)

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**Author:** [@EuroNiceguy](https://discourse.nodered.org/u/EuroNiceguy)\
**Replies:** 0\
**Last updated:** [28 February 2022 10:52 UTC](https://discourse.nodered.org/t/gps-tracking-platform-build/59108 "2022-02-28T10:52:10Z")

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Hello Everyone, I would like to pay someone to build or to provide guidance in relation to building the GPS tracking platform and creating integrations with our TomTom Map account. In addition, we are using Mobile DVR …

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## [Modbus TCP runtime ip](https://discourse.nodered.org/t/modbus-tcp-runtime-ip/58876)

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**Author:** [@MauroS](https://discourse.nodered.org/u/MauroS)\
**Replies:** 2\
**Last updated:** [28 February 2022 10:21 UTC](https://discourse.nodered.org/t/modbus-tcp-runtime-ip/58876 "2022-02-28T10:21:23Z")

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Hey everybody, I'm using node-red-contrib-modbus and made successfully a modbus tcp connection, even read and write mode. I trying to find out a way to set dynamically, I mean in runtime as I do with a function node ri…

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## [Node Red / HA / WLED groups.yaml call service entity id](https://discourse.nodered.org/t/node-red-ha-wled-groups-yaml-call-service-entity-id/59092)

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**Author:** [@xpantz](https://discourse.nodered.org/u/xpantz)\
**Replies:** 3\
**Last updated:** [28 February 2022 09:15 UTC](https://discourse.nodered.org/t/node-red-ha-wled-groups-yaml-call-service-entity-id/59092 "2022-02-28T09:15:26Z")

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Hi All, I've been using Node Red in HA to control a bunch of WLED installs. It's been working a treat for months. I use HA groups.yaml to specify a long list of entities to use in a "call service" node. After a recen…

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## [Issues on flows.nodered.org for new version of my node](https://discourse.nodered.org/t/issues-on-flows-nodered-org-for-new-version-of-my-node/58966)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 9\
**Last updated:** [28 February 2022 09:15 UTC](https://discourse.nodered.org/t/issues-on-flows-nodered-org-for-new-version-of-my-node/58966 "2022-02-28T09:15:17Z")

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Hi folks, I have published version 1.0.1 of my node-red-contrib-xterm node, but I have some issues with it: On flows.nodered.org my readme page is empty for some reason. The scorecard reports issues with my depend…

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## [Problem visualizing CSV data in a Line chart. I can read the timestamp and temperature data but i don't see the graph](https://discourse.nodered.org/t/problem-visualizing-csv-data-in-a-line-chart-i-can-read-the-timestamp-and-temperature-data-but-i-dont-see-the-graph/59013)

<div class="topic-metadata">

**Author:** [@venket1610](https://discourse.nodered.org/u/venket1610)\
**Replies:** 10\
**Last updated:** [28 February 2022 08:40 UTC](https://discourse.nodered.org/t/problem-visualizing-csv-data-in-a-line-chart-i-can-read-the-timestamp-and-temperature-data-but-i-dont-see-the-graph/59013 "2022-02-28T08:40:26Z")

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\[ { "id": "e4e30c42d69f0e9c", "type": "tab", "label": "File Browser", "disabled": false, "info": "", "env": \[\] }, { "id": "4fa73dd9.83cca4", "ty…

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## [Looking for someone to create a node MQTT/Influx](https://discourse.nodered.org/t/looking-for-someone-to-create-a-node-mqtt-influx/58963)

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**Author:** [@FeliceM](https://discourse.nodered.org/u/FeliceM)\
**Replies:** 16\
**Last updated:** [28 February 2022 08:27 UTC](https://discourse.nodered.org/t/looking-for-someone-to-create-a-node-mqtt-influx/58963 "2022-02-28T08:27:28Z")

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Hi there, I am looking for someone to create a flow suitable to receive MQTT messages and create Measurements in Influx to store the relevant data. The MQTT will contain Topic/ID/tag/value. One Measurement per ID, Tags…

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## [\[ANNOUNCE\]node-red-contrib-multistate-switch: 1.2.3 beta](https://discourse.nodered.org/t/announce-node-red-contrib-multistate-switch-1-2-3-beta/59045)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 4\
**Last updated:** [28 February 2022 06:42 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-multistate-switch-1-2-3-beta/59045 "2022-02-28T06:42:37Z")

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Hi folks, Some time ago @hotNipi and myself developed the node-red-contrib-ui-multistate-switch node. Due to lack of free time, I hadn't been able to use it myself in my own flows... So I started using it tonight, and…

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## [Resolving error "A duplicate file name exists, or the file cannot be found."](https://discourse.nodered.org/t/resolving-error-a-duplicate-file-name-exists-or-the-file-cannot-be-found/59004)

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**Author:** [@PossumPro](https://discourse.nodered.org/u/PossumPro)\
**Replies:** 5\
**Last updated:** [28 February 2022 01:08 UTC](https://discourse.nodered.org/t/resolving-error-a-duplicate-file-name-exists-or-the-file-cannot-be-found/59004 "2022-02-28T01:08:03Z")

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Hello, I'm attempting to resolve an error with my Node-Red setup that I see when using the TagUI module. The error I'm seeing is after the execution of any TagUI module: "A duplicate file name exists, or the file canno…

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## [How to use Function to select byte array and display string](https://discourse.nodered.org/t/how-to-use-function-to-select-byte-array-and-display-string/59085)

<div class="topic-metadata">

**Author:** [@rfrancis97](https://discourse.nodered.org/u/rfrancis97)\
**Replies:** 5\
**Last updated:** [28 February 2022 00:12 UTC](https://discourse.nodered.org/t/how-to-use-function-to-select-byte-array-and-display-string/59085 "2022-02-28T00:12:22Z")

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I'm new to this, and have been playing around, but to no avail. I have the following object being delivered from an mqtt broker. { "uplink\_message": { "session\_key\_id": "AX88sOZsNTkoN5rZ+Rzx/Q==", "…

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## [Google calendar configuration](https://discourse.nodered.org/t/google-calendar-configuration/59082)

<div class="topic-metadata">

**Author:** [@kkuula](https://discourse.nodered.org/u/kkuula)\
**Replies:** 0\
**Last updated:** [27 February 2022 21:53 UTC](https://discourse.nodered.org/t/google-calendar-configuration/59082 "2022-02-27T21:53:21Z")

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Hello, My setup is following: Raspberry Pi 3b+ runnin node-red, and Android tablet as UI device. I have tried to configure Google -node to get calendar events shown, but I am having hard time with it. I already created…

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