# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1094

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

**Page:** 1095

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## [Emitter for input change in behaviour](https://discourse.nodered.org/t/emitter-for-input-change-in-behaviour/26425)

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**Author:** [@peterprib](https://discourse.nodered.org/u/peterprib)\
**Replies:** 3\
**Last updated:** [11 May 2020 01:19 UTC](https://discourse.nodered.org/t/emitter-for-input-change-in-behaviour/26425 "2020-05-11T01:19:17Z")

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Prior to v1 my code to put a wrapper on an input emitter to trap a message before an node processed the message. With the new version node.listeners('input') returns no events when it is runs. The wrappers are applied …

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## [Insert into SQlite database?](https://discourse.nodered.org/t/insert-into-sqlite-database/26390)

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**Author:** [@asdf123](https://discourse.nodered.org/u/asdf123)\
**Replies:** 13\
**Last updated:** [11 May 2020 00:14 UTC](https://discourse.nodered.org/t/insert-into-sqlite-database/26390 "2020-05-11T00:14:04Z")

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Hi, I have 11 function node, which result the 11 different types of value, that I want to insert into my sqlite table. I'd like to know, how can I do that, because I always get an error. Here is my code: var newMsg = …

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## [HMI interfacing options supported by Node-Red](https://discourse.nodered.org/t/hmi-interfacing-options-supported-by-node-red/26357)

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**Author:** [@mizer666](https://discourse.nodered.org/u/mizer666)\
**Replies:** 1\
**Last updated:** [10 May 2020 11:53 UTC](https://discourse.nodered.org/t/hmi-interfacing-options-supported-by-node-red/26357 "2020-05-10T11:53:04Z")

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Hi All, i'm looking for some simple interfacing options between device and a user. At the moment my workaround is to use LCD/TFT displays with X and headless chrome on RPI that displays dashboard to the user but i'm lo…

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## [Feature request: show widget in multiple tabs/groups](https://discourse.nodered.org/t/feature-request-show-widget-in-multiple-tabs-groups/26446)

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**Author:** [@wirehead](https://discourse.nodered.org/u/wirehead)\
**Replies:** 1\
**Last updated:** [10 May 2020 21:02 UTC](https://discourse.nodered.org/t/feature-request-show-widget-in-multiple-tabs-groups/26446 "2020-05-10T21:02:13Z")

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Hello, I hope this is the right place to ask for a feature request. I did not find another solution for my requirement. First of all thank you for providing the dash board which is an easy to implement way to provide a…

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## [Cant launch node-red after last update](https://discourse.nodered.org/t/cant-launch-node-red-after-last-update/26444)

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**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 3\
**Last updated:** [10 May 2020 20:36 UTC](https://discourse.nodered.org/t/cant-launch-node-red-after-last-update/26444 "2020-05-10T20:36:29Z")

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hi today update nodejs to latest version but I have truble cant node-red server start 10 May 19:50:54 - \[error\] Uncaught Exception: 10 May 19:50:54 - \[error\] Error: listen EACCES: permission denied 0.0.0.0:1880 a…

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## [No output in the worldmap](https://discourse.nodered.org/t/no-output-in-the-worldmap/7654)

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**Author:** [@emspe](https://discourse.nodered.org/u/emspe)\
**Replies:** 36\
**Last updated:** [10 May 2020 18:32 UTC](https://discourse.nodered.org/t/no-output-in-the-worldmap/7654 "2020-05-10T18:32:39Z")

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Hello, I'm trying to show several locations in the worldmap. When i restarted the node red and the Rasspberrypi and deployed the below there is nothing in the worldmap. It is hard to discover the issue in my flow menti…

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## [Ecobee to Dashboard](https://discourse.nodered.org/t/ecobee-to-dashboard/6220)

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**Author:** [@Cormad](https://discourse.nodered.org/u/Cormad)\
**Replies:** 12\
**Last updated:** [3 January 2019 21:51 UTC](https://discourse.nodered.org/t/ecobee-to-dashboard/6220 "2019-01-03T21:51:03Z")

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Help Please, I am able to read my ecobee temperature following instruction on the net. Now that I have a string output to the debug log I want to feed it to a gauge. Need a bit of help with code var currentTemp=""; con…

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## [Camerapi-take photo issue](https://discourse.nodered.org/t/camerapi-take-photo-issue/26081)

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**Author:** [@VladMarta](https://discourse.nodered.org/u/VladMarta)\
**Replies:** 3\
**Last updated:** [10 May 2020 17:36 UTC](https://discourse.nodered.org/t/camerapi-take-photo-issue/26081 "2020-05-10T17:36:46Z")

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Hello I'm trying to use Node Red camerapi takephoto node and I receive the following error: " Cannot find module 'uuid/v4' ". Does anybody have an idea how to solve this issue ?

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## [Flow to activate switch between certain hours](https://discourse.nodered.org/t/flow-to-activate-switch-between-certain-hours/25768)

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**Author:** [@fritserasmus](https://discourse.nodered.org/u/fritserasmus)\
**Replies:** 17\
**Last updated:** [10 May 2020 17:17 UTC](https://discourse.nodered.org/t/flow-to-activate-switch-between-certain-hours/25768 "2020-05-10T17:17:14Z")

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I have a Node-MCU ESP8266 filled with a DS18B20 temperature sensor that measures the temperature in my home office. This temperature reading goes through the switch node to set upper and lower temperature values that in…

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## [UART port issue](https://discourse.nodered.org/t/uart-port-issue/26411)

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**Author:** [@Srini](https://discourse.nodered.org/u/Srini)\
**Replies:** 6\
**Last updated:** [10 May 2020 16:31 UTC](https://discourse.nodered.org/t/uart-port-issue/26411 "2020-05-10T16:31:52Z")

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Hi Guys, I am new to node red i have an issue with node red using the uart port on pi. My goal in this is to read Energy meter data via UART port using modbus and share same data on MQTT. Details: Starting as a syst…

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## [How can I use splitted msg in another function?](https://discourse.nodered.org/t/how-can-i-use-splitted-msg-in-another-function/26438)

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**Author:** [@HELPME](https://discourse.nodered.org/u/HELPME)\
**Replies:** 2\
**Last updated:** [10 May 2020 16:27 UTC](https://discourse.nodered.org/t/how-can-i-use-splitted-msg-in-another-function/26438 "2020-05-10T16:27:59Z")

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Hello everyone, I'm stucked with my project for database, and I could use some help. I have a function node, which give me temperature data like Low High Medium and so on. My task is to give all the data to my TEM…

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## [Deploying flow to multiple systems, and updating](https://discourse.nodered.org/t/deploying-flow-to-multiple-systems-and-updating/26434)

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**Author:** [@bdbell](https://discourse.nodered.org/u/bdbell)\
**Replies:** 3\
**Last updated:** [10 May 2020 16:19 UTC](https://discourse.nodered.org/t/deploying-flow-to-multiple-systems-and-updating/26434 "2020-05-10T16:19:18Z")

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Yesterday I posted a question about a problem I found when trying to export a flow from one raspberry pi to another, I found that spacers are not included in an export/import. I am relying on spacers to be able to align…

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## [MongoDB integration with NodeRed](https://discourse.nodered.org/t/mongodb-integration-with-nodered/26422)

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**Author:** [@ElleshaHackett](https://discourse.nodered.org/u/ElleshaHackett)\
**Replies:** 4\
**Last updated:** [10 May 2020 14:53 UTC](https://discourse.nodered.org/t/mongodb-integration-with-nodered/26422 "2020-05-10T14:53:24Z")

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I love this project. Using it a few days, so far without any problems till I tried to integrate MongoDB. I'm using Docker but I am totally lost by the lack of proper documentation. All docs seem outdated and the package …

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## [Split string into different flows](https://discourse.nodered.org/t/split-string-into-different-flows/26417)

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**Author:** [@opinionion](https://discourse.nodered.org/u/opinionion)\
**Replies:** 2\
**Last updated:** [10 May 2020 14:08 UTC](https://discourse.nodered.org/t/split-string-into-different-flows/26417 "2020-05-10T14:08:03Z")

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Hello everyone. Is there a way to split msg.payload string into three diffrent flows. The input is a message (from twitter) that i need to split into three diffrent flows. The payload has to be cut afer 100 characters,…

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## [Template to http out not working](https://discourse.nodered.org/t/template-to-http-out-not-working/26423)

<div class="topic-metadata">

**Author:** [@edmundhei](https://discourse.nodered.org/u/edmundhei)\
**Replies:** 1\
**Last updated:** [10 May 2020 13:41 UTC](https://discourse.nodered.org/t/template-to-http-out-not-working/26423 "2020-05-10T13:41:39Z")

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Hi I am trying to send the mqtt result to the template node and display on a webpage. The debug node is displaying the correct info but template node is showing "No response object" \[{"id":"80675ac8.8a62e8","type":"ta…

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## [How to check a value remains above threshold for a time?](https://discourse.nodered.org/t/how-to-check-a-value-remains-above-threshold-for-a-time/26429)

<div class="topic-metadata">

**Author:** [@ebloemsma](https://discourse.nodered.org/u/ebloemsma)\
**Replies:** 1\
**Last updated:** [10 May 2020 13:37 UTC](https://discourse.nodered.org/t/how-to-check-a-value-remains-above-threshold-for-a-time/26429 "2020-05-10T13:37:17Z")

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I have a input value of sun radiation and want to control blinds with it. But the value is very unstable, so I want to react (shades down/up) only if the value remains above or below a threshold for a given time (e.g. 10…

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## [Global INT set vars -\> NaN](https://discourse.nodered.org/t/global-int-set-vars-nan/26410)

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**Author:** [@pautorras](https://discourse.nodered.org/u/pautorras)\
**Replies:** 3\
**Last updated:** [10 May 2020 13:05 UTC](https://discourse.nodered.org/t/global-int-set-vars-nan/26410 "2020-05-10T13:05:13Z")

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Hi, I think I've tried almost everything like Number(var), ParseInt(var,10), toFixed(1),...., but I'm getting always NaN in the context menu of Global vars. See the function code: var status=msg.payload.weather; var …

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## [ASCII Convert Control Character](https://discourse.nodered.org/t/ascii-convert-control-character/26140)

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**Author:** [@New2Node](https://discourse.nodered.org/u/New2Node)\
**Replies:** 8\
**Last updated:** [10 May 2020 12:59 UTC](https://discourse.nodered.org/t/ascii-convert-control-character/26140 "2020-05-10T12:59:16Z")

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Hi, I'm unable to decode a message from a serial device, if send buffer \[2,69,12,202,170,194,66,192,100,232,255,255,75,70,225,9,181,20,159,51,174,82,69,65,68,69,82,0,112,153,3\] I can see the raw data (Ascii) shows E…

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## [Error in insert data to database](https://discourse.nodered.org/t/error-in-insert-data-to-database/26406)

<div class="topic-metadata">

**Author:** [@lingzhongli](https://discourse.nodered.org/u/lingzhongli)\
**Replies:** 10\
**Last updated:** [10 May 2020 11:51 UTC](https://discourse.nodered.org/t/error-in-insert-data-to-database/26406 "2020-05-10T11:51:03Z")

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i got this kind of error when insert data... USER database HISTORY database var spokenAsText = msg.payload;// or where ever the speech to text is var SQL = "INSERT INTO HISTORY (NAME) SELECT NAME FROM USER WHERE…

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## [Organising Data for a temperature logger](https://discourse.nodered.org/t/organising-data-for-a-temperature-logger/26375)

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**Author:** [@Hylkebab](https://discourse.nodered.org/u/Hylkebab)\
**Replies:** 6\
**Last updated:** [10 May 2020 11:43 UTC](https://discourse.nodered.org/t/organising-data-for-a-temperature-logger/26375 "2020-05-10T11:43:17Z")

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Hello, Im doing a project where I need to log temperatures into a file so that I can later make a model from it. This is my first time ever using Node Red/programming. Right now my flow produces the information I need a…

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## [PLC HMI using svg dashboard node](https://discourse.nodered.org/t/plc-hmi-using-svg-dashboard-node/26377)

<div class="topic-metadata">

**Author:** [@kattivik76](https://discourse.nodered.org/u/kattivik76)\
**Replies:** 4\
**Last updated:** [10 May 2020 11:42 UTC](https://discourse.nodered.org/t/plc-hmi-using-svg-dashboard-node/26377 "2020-05-10T11:42:05Z")

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## [Google Assistant: get Home Graph traits for all devices](https://discourse.nodered.org/t/google-assistant-get-home-graph-traits-for-all-devices/26416)

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**Author:** [@gertst](https://discourse.nodered.org/u/gertst)\
**Replies:** 0\
**Last updated:** [10 May 2020 11:02 UTC](https://discourse.nodered.org/t/google-assistant-get-home-graph-traits-for-all-devices/26416 "2020-05-10T11:02:01Z")

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Hi, Is it possible to read out the Google Home Graph to get the state of connected devices? For example: Can I get the destination temperature of my Nest Thermostat? Can I get the remaining time of a running Timer on…

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## [Multithread execution](https://discourse.nodered.org/t/multithread-execution/26401)

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**Author:** [@cmdares](https://discourse.nodered.org/u/cmdares)\
**Replies:** 3\
**Last updated:** [10 May 2020 10:59 UTC](https://discourse.nodered.org/t/multithread-execution/26401 "2020-05-10T10:59:38Z")

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In order to meet some CPU intensive computing scenarios, upgrade node to the latest version, and hope to adjust the relevant code of the core execution engine and enable multithreading. ref: https://nodejs.org/api/w…

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## [VCGENCMD node, funny output/](https://discourse.nodered.org/t/vcgencmd-node-funny-output/26400)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [10 May 2020 10:39 UTC](https://discourse.nodered.org/t/vcgencmd-node-funny-output/26400 "2020-05-10T10:39:23Z")

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I have the node-red-contrib-vcgencmd node installed. Now and then when working on/in the machine I am getting this: Previous vcgencmd command hasn't finished yet Two message when I get one input signal. Basic flow: c…

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## [Unable to start node-red after installing modbus sample code](https://discourse.nodered.org/t/unable-to-start-node-red-after-installing-modbus-sample-code/26393)

<div class="topic-metadata">

**Author:** [@Zaza](https://discourse.nodered.org/u/Zaza)\
**Replies:** 9\
**Last updated:** [10 May 2020 09:58 UTC](https://discourse.nodered.org/t/unable-to-start-node-red-after-installing-modbus-sample-code/26393 "2020-05-10T09:58:39Z")

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Hi all, I recently copied the codes below related to modebus master and slave. Node red is not starting, and I am getting the error below. How do I go about solving or clearing the error? 9 May 21:46:27 - \[info\] Starti…

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## [Does it matter?](https://discourse.nodered.org/t/does-it-matter/26398)

<div class="topic-metadata">

**Author:** [@asdf123](https://discourse.nodered.org/u/asdf123)\
**Replies:** 4\
**Last updated:** [10 May 2020 08:47 UTC](https://discourse.nodered.org/t/does-it-matter/26398 "2020-05-10T08:47:00Z")

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Hello, I have a function, which results string array. I want to insert it into sqlite database line by line. Each line is the following value. Do I have to somehow convert the function message in order to insert it into…

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## [Loops inside a node](https://discourse.nodered.org/t/loops-inside-a-node/26402)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [10 May 2020 08:07 UTC](https://discourse.nodered.org/t/loops-inside-a-node/26402 "2020-05-10T08:07:49Z")

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I am delving into loops for some reason. I send a payload (number) and the node spits out that many messages. (Contents not important) So for now this is the code: let x = msg.payload; let y = 0; context.set("COUNT",…

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## [Help with nube-logic nodes set](https://discourse.nodered.org/t/help-with-nube-logic-nodes-set/26399)

<div class="topic-metadata">

**Author:** [@ajaymccollum](https://discourse.nodered.org/u/ajaymccollum)\
**Replies:** 8\
**Last updated:** [10 May 2020 08:00 UTC](https://discourse.nodered.org/t/help-with-nube-logic-nodes-set/26399 "2020-05-10T08:00:09Z")

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I'm trying to use some nodes out of node-red-contrib-nube-logic, but as there is no description at all on how to use any of them, combined with my general inexperience, I have no idea what these things want from me to fu…

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## [How can I split a message?](https://discourse.nodered.org/t/how-can-i-split-a-message/26396)

<div class="topic-metadata">

**Author:** [@asdf123](https://discourse.nodered.org/u/asdf123)\
**Replies:** 5\
**Last updated:** [10 May 2020 05:59 UTC](https://discourse.nodered.org/t/how-can-i-split-a-message/26396 "2020-05-10T05:59:09Z")

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Hello, I have a function node, which return an array as a message: var r = /\\W+/; msg.payload = msg.payload.split(r); var msg1 = { payload: msg.payload.length } msg1.payload = ""; for (var i = 0; i \< msg.payload.length…

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## [Backend and frontend communication](https://discourse.nodered.org/t/backend-and-frontend-communication/23944)

<div class="topic-metadata">

**Author:** [@cmdares](https://discourse.nodered.org/u/cmdares)\
**Replies:** 2\
**Last updated:** [10 May 2020 03:32 UTC](https://discourse.nodered.org/t/backend-and-frontend-communication/23944 "2020-05-10T03:32:38Z")

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lower-case.js: module.exports = function(RED) { var myObject = {"x":1,"y":2};/myobject/ function LowerCaseNode(config) { RED.nodes.createNode(this,config); var node = this; t his.on('input', function(msg) { /??how…

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