# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1113

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

**Page:** 1114

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## [Does anyone use \`node-red-contrib-samsung-tv-control\`?](https://discourse.nodered.org/t/does-anyone-use-node-red-contrib-samsung-tv-control/25067)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [18 April 2020 11:36 UTC](https://discourse.nodered.org/t/does-anyone-use-node-red-contrib-samsung-tv-control/25067 "2020-04-18T11:36:24Z")

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I have a Samsung TV, and have this installed on one machine. It works. I have to get the token to get around the constant requests. So, I got that working on that machine. Now I want to install the node/s on another …

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## [Problem getting Graph to display](https://discourse.nodered.org/t/problem-getting-graph-to-display/24265)

<div class="topic-metadata">

**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 28\
**Last updated:** [18 April 2020 11:32 UTC](https://discourse.nodered.org/t/problem-getting-graph-to-display/24265 "2020-04-18T11:32:13Z")

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I am trying to get a graph from my roomtemperature. I found some examples and it took me a while to get them working but I managed. I have a database with an ID, sensornumber, value and a sql generated timestamp. What…

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## [Using Array in mustache format](https://discourse.nodered.org/t/using-array-in-mustache-format/25050)

<div class="topic-metadata">

**Author:** [@17greesm](https://discourse.nodered.org/u/17greesm)\
**Replies:** 3\
**Last updated:** [18 April 2020 08:00 UTC](https://discourse.nodered.org/t/using-array-in-mustache-format/25050 "2020-04-18T08:00:26Z")

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Hello guys, This is my first post on the forum. I want to print a highchart Problem : I am facing issue with use of array in mustache format of template node. If my msg.payload = \[\[0,1\],\[2,3\]\] this turns {{payload}} …

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## [MQTT-Node Packet Size Limit?](https://discourse.nodered.org/t/mqtt-node-packet-size-limit/25027)

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**Author:** [@drowsylogic](https://discourse.nodered.org/u/drowsylogic)\
**Replies:** 8\
**Last updated:** [18 April 2020 06:42 UTC](https://discourse.nodered.org/t/mqtt-node-packet-size-limit/25027 "2020-04-18T06:42:39Z")

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I am working to send data using the standard MQTT node to a remote broker. I have an issue that I believe is related to packet size. I send a "Hello World" Payload to my remote broker and it is received on the remote b…

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## [Problems with node-red-contrib-homeconnect](https://discourse.nodered.org/t/problems-with-node-red-contrib-homeconnect/25051)

<div class="topic-metadata">

**Author:** [@tobiasselin](https://discourse.nodered.org/u/tobiasselin)\
**Replies:** 0\
**Last updated:** [18 April 2020 06:25 UTC](https://discourse.nodered.org/t/problems-with-node-red-contrib-homeconnect/25051 "2020-04-18T06:25:50Z")

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Hello, Can anyone please share a working home connect flow for getting all appliances and some other basic commands. The documentation says there are supposed to be three nodes in node-red-contrib-homeconnect but there …

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## [Directional door sensor](https://discourse.nodered.org/t/directional-door-sensor/24551)

<div class="topic-metadata">

**Author:** [@biz](https://discourse.nodered.org/u/biz)\
**Replies:** 17\
**Last updated:** [17 April 2020 22:19 UTC](https://discourse.nodered.org/t/directional-door-sensor/24551 "2020-04-17T22:19:47Z")

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Hey guys I have been wanting to do this for a while, finally can now. I saw some posts a long time ago about making directional sensors on the main door. My two sensors will be a aqura zigbee door sensor on the door a…

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## [(SOLVED) Docker-Stack: Node-Red to access html://anothercontainer:port/snapshot.jpg](https://discourse.nodered.org/t/solved-docker-stack-node-red-to-access-html-anothercontainer-port-snapshot-jpg/25030)

<div class="topic-metadata">

**Author:** [@jodelkoenig](https://discourse.nodered.org/u/jodelkoenig)\
**Replies:** 2\
**Last updated:** [17 April 2020 22:21 UTC](https://discourse.nodered.org/t/solved-docker-stack-node-red-to-access-html-anothercontainer-port-snapshot-jpg/25030 "2020-04-17T22:21:10Z")

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Hi there, I am having a problem that is driving me crazy. Just now :sweat\_smile: I do have a working setup of two docker container running in the same network (nr\_default) started via docker-compose: nodered - port 1…

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## [Encoding string to Telegram](https://discourse.nodered.org/t/encoding-string-to-telegram/24692)

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**Author:** [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Replies:** 10\
**Last updated:** [17 April 2020 21:45 UTC](https://discourse.nodered.org/t/encoding-string-to-telegram/24692 "2020-04-17T21:45:11Z")

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Hello, I'm using a Telegram BOT to receive my TTN messages. Is working fine but I would like to use the MarkdownV2 option which also offers underline and strikethrough. When using this parse\_mode I get errors on several…

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## [Context variable is reset on zero](https://discourse.nodered.org/t/context-variable-is-reset-on-zero/25023)

<div class="topic-metadata">

**Author:** [@sg25](https://discourse.nodered.org/u/sg25)\
**Replies:** 10\
**Last updated:** [17 April 2020 21:42 UTC](https://discourse.nodered.org/t/context-variable-is-reset-on-zero/25023 "2020-04-17T21:42:30Z")

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I use a node red v1.0.2 docker image for raspberry. After I adjusted some values for my sensors, I detected some strange behaviour of my functions. I fiddled around several hours over this problem an can now easily sho…

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## [How to change Date from String into DateTime format](https://discourse.nodered.org/t/how-to-change-date-from-string-into-datetime-format/25013)

<div class="topic-metadata">

**Author:** [@Karol2020](https://discourse.nodered.org/u/Karol2020)\
**Replies:** 21\
**Last updated:** [17 April 2020 21:21 UTC](https://discourse.nodered.org/t/how-to-change-date-from-string-into-datetime-format/25013 "2020-04-17T21:21:58Z")

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Dear all, pls. I have issue with my project in Node-RED. I am receiving JSON objects from MQTT broker for example: { "deviceId": "e4c56af7-2efd-4e15-b35b-90b2161fb264", "sensor": "temperature", "value": 19, "date":…

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## [Flow control menu on tab](https://discourse.nodered.org/t/flow-control-menu-on-tab/24981)

<div class="topic-metadata">

**Author:** [@LosinIt](https://discourse.nodered.org/u/LosinIt)\
**Replies:** 11\
**Last updated:** [17 April 2020 19:51 UTC](https://discourse.nodered.org/t/flow-control-menu-on-tab/24981 "2020-04-17T19:51:08Z")

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Granted, I've only been using NR a few days and I've got a ton to learn but it seems a glaring omission that there is little control over a flow's operation. What I expected to find (and I suggest right-clicking on the f…

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## [Node-red crash-zlib.js](https://discourse.nodered.org/t/node-red-crash-zlib-js/25024)

<div class="topic-metadata">

**Author:** [@trinitry](https://discourse.nodered.org/u/trinitry)\
**Replies:** 1\
**Last updated:** [17 April 2020 17:54 UTC](https://discourse.nodered.org/t/node-red-crash-zlib-js/25024 "2020-04-17T17:54:14Z")

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Dear all, recently i am getting my node-red crashing with the following error TypeError: Cannot read property 'write' of null at Zlib.callback (zlib.js:499:33) How i should tackle this issue? Thank you all

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## [How to get "text" from "speech to text" that needed using in function node](https://discourse.nodered.org/t/how-to-get-text-from-speech-to-text-that-needed-using-in-function-node/24954)

<div class="topic-metadata">

**Author:** [@lingzhongli](https://discourse.nodered.org/u/lingzhongli)\
**Replies:** 17\
**Last updated:** [17 April 2020 17:40 UTC](https://discourse.nodered.org/t/how-to-get-text-from-speech-to-text-that-needed-using-in-function-node/24954 "2020-04-17T17:40:40Z")

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var topi =msg.topic; msg.topic = "SELECT VOICE FROM USER";//data voice from database var transcription =msg.transcription;//data from microphone (input data) if(topic==transcription){ //upload name to histo…

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## [Can you use Vue cli to make front end in with the UIbuilder node?](https://discourse.nodered.org/t/can-you-use-vue-cli-to-make-front-end-in-with-the-uibuilder-node/24889)

<div class="topic-metadata">

**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 3\
**Last updated:** [17 April 2020 16:29 UTC](https://discourse.nodered.org/t/can-you-use-vue-cli-to-make-front-end-in-with-the-uibuilder-node/24889 "2020-04-17T16:29:32Z")

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does anyone know ? and if, how do you add a cli project to the ui builder

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## [Is their anyway to stop a flow?](https://discourse.nodered.org/t/is-their-anyway-to-stop-a-flow/24965)

<div class="topic-metadata">

**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 4\
**Last updated:** [17 April 2020 16:09 UTC](https://discourse.nodered.org/t/is-their-anyway-to-stop-a-flow/24965 "2020-04-17T16:09:38Z")

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Im taking in sensor data and displaying it with gauges. I use a switch to display a value on the gauges or the string "disabled". The flow has 4 inject nodes with 4 exec nodes that all goes to the IOT hub node for adding…

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## [Memory leakage with simple dashboard](https://discourse.nodered.org/t/memory-leakage-with-simple-dashboard/24943)

<div class="topic-metadata">

**Author:** [@mhechthz](https://discourse.nodered.org/u/mhechthz)\
**Replies:** 16\
**Last updated:** [17 April 2020 15:20 UTC](https://discourse.nodered.org/t/memory-leakage-with-simple-dashboard/24943 "2020-04-17T15:20:02Z")

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I found this problem frequently in the web in combination with raspberry pi, but no general solution. I'm running node-red in a docker container on ubuntu. I installed this two weeks ago, so all versions should be up to…

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## [Node-Red Install error on Raspbian](https://discourse.nodered.org/t/node-red-install-error-on-raspbian/25003)

<div class="topic-metadata">

**Author:** [@Noeru](https://discourse.nodered.org/u/Noeru)\
**Replies:** 9\
**Last updated:** [17 April 2020 14:36 UTC](https://discourse.nodered.org/t/node-red-install-error-on-raspbian/25003 "2020-04-17T14:36:30Z")

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Hi, I am trying to install Node-Red on a raspberry pi 4 on Raspbian GNU/Linux 10 (buster) (I am trying to setup a domoticz to comunicate with an ESP8266 using mqtt) node - v : v12.16.2 npm -v : v6.14.4 after using th…

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## [Msg assignment syntax error](https://discourse.nodered.org/t/msg-assignment-syntax-error/24982)

<div class="topic-metadata">

**Author:** [@chuckf201](https://discourse.nodered.org/u/chuckf201)\
**Replies:** 6\
**Last updated:** [17 April 2020 14:36 UTC](https://discourse.nodered.org/t/msg-assignment-syntax-error/24982 "2020-04-17T14:36:02Z")

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I'm accessing openweather.org and pulling down a matrix like so. array\[40\] \[0 … 9\] \[10 … 19\] \[20 … 29\] 20: object 21: object 22: object dt: 1587319200 main: object weather: array\[1\] clouds: object wind: objec…

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## [Adding a var in msg.payload](https://discourse.nodered.org/t/adding-a-var-in-msg-payload/25007)

<div class="topic-metadata">

**Author:** [@Ward](https://discourse.nodered.org/u/Ward)\
**Replies:** 9\
**Last updated:** [17 April 2020 14:02 UTC](https://discourse.nodered.org/t/adding-a-var-in-msg-payload/25007 "2020-04-17T14:02:17Z")

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Hi, I want to write some data to InfluxDB. Everything works fine but now i want to write some tags instead of a fixed input. I've got the following but node red see it as text and not a var. It's propably something …

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## [Nan error on temp & humidity data](https://discourse.nodered.org/t/nan-error-on-temp-humidity-data/25001)

<div class="topic-metadata">

**Author:** [@arpit8851](https://discourse.nodered.org/u/arpit8851)\
**Replies:** 4\
**Last updated:** [17 April 2020 10:37 UTC](https://discourse.nodered.org/t/nan-error-on-temp-humidity-data/25001 "2020-04-17T10:37:32Z")

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http://127.0.0.1:1880/#flow/182883fd.98030c i use node red with arduino to show the temp and humidity but agn and agn it show the error like msg.playground: number nan means not showing the value in number how ca…

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## [SPLIT node - help](https://discourse.nodered.org/t/split-node-help/25006)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [17 April 2020 10:14 UTC](https://discourse.nodered.org/t/split-node-help/25006 "2020-04-17T10:14:59Z")

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Though I am open to alternate nodes to do this. (Actually I am now thinking this is not the right node for this job, but.....) I have a message payload (example) 123 I want to split it into 3 messages: 1 2 and 3. I…

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## [TVHeadEnd EPG dashboard](https://discourse.nodered.org/t/tvheadend-epg-dashboard/11897)

<div class="topic-metadata">

**Author:** [@rsenden](https://discourse.nodered.org/u/rsenden)\
**Replies:** 1\
**Last updated:** [17 April 2020 10:11 UTC](https://discourse.nodered.org/t/tvheadend-epg-dashboard/11897 "2020-04-17T10:11:15Z")

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Apart from using the Node-RED dashboard for controlling hardware devices, I have now also added a tab that allows for the following: Search the TVHeadEnd EPG based on (optional) channel and program title Add a single r…

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## [AWS Rekognition/General Questions](https://discourse.nodered.org/t/aws-rekognition-general-questions/24991)

<div class="topic-metadata">

**Author:** [@DGRAY325](https://discourse.nodered.org/u/DGRAY325)\
**Replies:** 1\
**Last updated:** [17 April 2020 06:08 UTC](https://discourse.nodered.org/t/aws-rekognition-general-questions/24991 "2020-04-17T06:08:41Z")

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Hoping someone can help me out, have a couple of questions. First, I have been using Node-RED as a "middleware" solution to integrate several different system into a video management system that offers a ton of API/SDK …

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## [Can't install any palettes](https://discourse.nodered.org/t/cant-install-any-palettes/24992)

<div class="topic-metadata">

**Author:** [@Arm555](https://discourse.nodered.org/u/Arm555)\
**Replies:** 0\
**Last updated:** [17 April 2020 03:44 UTC](https://discourse.nodered.org/t/cant-install-any-palettes/24992 "2020-04-17T03:44:01Z")

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Running nodered in docker in an unRAID server. I am trying to add a username and password so i am trying to install node-red-admin and i know i first need to enter into the docker by using: docker exec -it NodeRed-Offic…

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## [POST form "Unable to parse JSON body"](https://discourse.nodered.org/t/post-form-unable-to-parse-json-body/24988)

<div class="topic-metadata">

**Author:** [@VinistoisR](https://discourse.nodered.org/u/VinistoisR)\
**Replies:** 3\
**Last updated:** [17 April 2020 01:25 UTC](https://discourse.nodered.org/t/post-form-unable-to-parse-json-body/24988 "2020-04-17T01:25:12Z")

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So I'm trying to fill out a super basic web form with a content type of "Content-Type: application/x-www-form-urlencoded; charset=UTF-8". The page is hosted at http://www.something.com/contact-us.html, but the form POST…

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## [Exporting and Importing flows - problem with SUBFLOWS](https://discourse.nodered.org/t/exporting-and-importing-flows-problem-with-subflows/24194)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [17 April 2020 00:14 UTC](https://discourse.nodered.org/t/exporting-and-importing-flows-problem-with-subflows/24194 "2020-04-17T00:14:07Z")

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If I write a flow and export it then import it to another machine, all the existing nodes are honoured and not overwritten. Alas I have seen that if you write a subflow and export a flow with it then import it to anothe…

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## [Http API call using "http request" node receives "access denied" response](https://discourse.nodered.org/t/http-api-call-using-http-request-node-receives-access-denied-response/24976)

<div class="topic-metadata">

**Author:** [@craigschmieder](https://discourse.nodered.org/u/craigschmieder)\
**Replies:** 2\
**Last updated:** [17 April 2020 00:12 UTC](https://discourse.nodered.org/t/http-api-call-using-http-request-node-receives-access-denied-response/24976 "2020-04-17T00:12:44Z")

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I'd like to know if anyone else has seen similar problems and has a solution. I have no problem with most API's using the Node-RED HTTP Request Node. But when call APIs at https://api.weather.gov, I receive an "access de…

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## [JSONata - $round](https://discourse.nodered.org/t/jsonata-round/24966)

<div class="topic-metadata">

**Author:** [@Cristiano](https://discourse.nodered.org/u/Cristiano)\
**Replies:** 2\
**Last updated:** [17 April 2020 00:04 UTC](https://discourse.nodered.org/t/jsonata-round/24966 "2020-04-17T00:04:54Z")

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Hello, I am usinga double query to the influx and I receive two arrays with the values ​​of the two measurements, then convert to JSONata and show it in the chart. (4 values) I am using the $ round function, for the va…

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## ["Search flows" doesn't seem to be Helpful](https://discourse.nodered.org/t/search-flows-doesnt-seem-to-be-helpful/24974)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [17 April 2020 00:00 UTC](https://discourse.nodered.org/t/search-flows-doesnt-seem-to-be-helpful/24974 "2020-04-17T00:00:07Z")

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I got up this morning and things weren't as they should be. I looked at the RasPi web page and see this: Parts highlighted because this is where things fall down. The page is called "ALARMS" The Group is called "Fl…

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## [How to pass temperature value to next node](https://discourse.nodered.org/t/how-to-pass-temperature-value-to-next-node/24975)

<div class="topic-metadata">

**Author:** [@Auto101](https://discourse.nodered.org/u/Auto101)\
**Replies:** 14\
**Last updated:** [16 April 2020 23:28 UTC](https://discourse.nodered.org/t/how-to-pass-temperature-value-to-next-node/24975 "2020-04-16T23:28:05Z")

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Hi , I am new to HA and node red . I am trying to write a flow as below Read temperature from a sensor . This is already done as I am using Hue magic . Based on the temperature value in Fahrenheit, hue light color sh…

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