# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1164

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

**Page:** 1165

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## [Aggregate MQTT sensor values into influxdb](https://discourse.nodered.org/t/aggregate-mqtt-sensor-values-into-influxdb/21085)

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**Author:** [@Jonathan95](https://discourse.nodered.org/u/Jonathan95)\
**Replies:** 4\
**Last updated:** [3 February 2020 05:17 UTC](https://discourse.nodered.org/t/aggregate-mqtt-sensor-values-into-influxdb/21085 "2020-02-03T05:17:29Z")

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Hi all, Ive managed to sort of format the data to something influxdb can take but its not seemingly getting any of the other values I am joining together but only passing one of them? I have it I believe in an array? …

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## [Report html parse errors on console](https://discourse.nodered.org/t/report-html-parse-errors-on-console/20977)

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**Author:** [@TheNightFall](https://discourse.nodered.org/u/TheNightFall)\
**Replies:** 15\
**Last updated:** [3 February 2020 00:29 UTC](https://discourse.nodered.org/t/report-html-parse-errors-on-console/20977 "2020-02-03T00:29:58Z")

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Recently I created a node to the pallete. It was working fine, I was using Chrome to test and work with it. When I tried to use it in ie, the node never showed in the pallete, it took me several hours ( because it was i…

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## [Initiate new connections](https://discourse.nodered.org/t/initiate-new-connections/6774)

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**Author:** [@RickW](https://discourse.nodered.org/u/RickW)\
**Replies:** 11\
**Last updated:** [3 February 2020 00:01 UTC](https://discourse.nodered.org/t/initiate-new-connections/6774 "2020-02-03T00:01:01Z")

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I have tried searching but haven't found anything along the lines of my question. Is there a node that can be used to trigger a fresh initiation of external connections? Making a small physical move of even a comment …

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## [Modbustcp vs modbus?](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171)

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**Author:** [@PPz](https://discourse.nodered.org/u/PPz)\
**Replies:** 1\
**Last updated:** [2 February 2020 22:20 UTC](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171 "2020-02-02T22:20:41Z")

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I read modbus (TCP) plc's addresses through modbustcp contrib. I put the IP address, the port and I read registers. Fine (except some time-out errors). I installed also the modbus contrib and it seems that I can reach a…

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## [BME280 Output Object Splitting](https://discourse.nodered.org/t/bme280-output-object-splitting/15867)

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**Author:** [@n61ab](https://discourse.nodered.org/u/n61ab)\
**Replies:** 12\
**Last updated:** [2 February 2020 22:05 UTC](https://discourse.nodered.org/t/bme280-output-object-splitting/15867 "2020-02-02T22:05:26Z")

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I am setting up a BME280 to read pressure. It has three outputs in the Object as follows: I used a split and a switch to pull out the pressure by setting the switch to output values greater than 800. That worked onl…

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## [Stuck using Serial Node](https://discourse.nodered.org/t/stuck-using-serial-node/21145)

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**Author:** [@BobD](https://discourse.nodered.org/u/BobD)\
**Replies:** 22\
**Last updated:** [2 February 2020 21:44 UTC](https://discourse.nodered.org/t/stuck-using-serial-node/21145 "2020-02-02T21:44:25Z")

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Hi All, I am trying to use a serial flow to drive a relay box via serial over a USB/RS485 device. I tried to import dedicated RS485 nodes, but they will not load. When I send using a standard serial node, I get a resp…

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## [How to access the dashboard from Android without Wi-Fi connection](https://discourse.nodered.org/t/how-to-access-the-dashboard-from-android-without-wi-fi-connection/21128)

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**Author:** [@IgnatiusSJ](https://discourse.nodered.org/u/IgnatiusSJ)\
**Replies:** 8\
**Last updated:** [2 February 2020 20:07 UTC](https://discourse.nodered.org/t/how-to-access-the-dashboard-from-android-without-wi-fi-connection/21128 "2020-02-02T20:07:46Z")

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Hi. I've been using Node-Red for a while and one of the things I'm testing is like watching the dashboard from my Android phone. I have no problem using Wi-Fi on my local network but when I try to access it through the d…

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## [Node Red Unraid Docker - Backup and Restore Config and Plugins](https://discourse.nodered.org/t/node-red-unraid-docker-backup-and-restore-config-and-plugins/21172)

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**Author:** [@ebnerjoh](https://discourse.nodered.org/u/ebnerjoh)\
**Replies:** 2\
**Last updated:** [2 February 2020 15:59 UTC](https://discourse.nodered.org/t/node-red-unraid-docker-backup-and-restore-config-and-plugins/21172 "2020-02-02T15:59:13Z")

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Hi, I have installed long time ago a Node Red Docker on my Unraid Server. Now I noticed that the Version is outdated, still at v0.20.8 There is a new Docker available for UnRaid which is up2date. How can I move my wor…

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## [Error when re-starting flows - could not find state with entity\_id](https://discourse.nodered.org/t/error-when-re-starting-flows-could-not-find-state-with-entity-id/20419)

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**Author:** [@michaelparsche](https://discourse.nodered.org/u/michaelparsche)\
**Replies:** 3\
**Last updated:** [2 February 2020 14:30 UTC](https://discourse.nodered.org/t/error-when-re-starting-flows-could-not-find-state-with-entity-id/20419 "2020-02-02T14:30:22Z")

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Whenever I restart Node-Red or Redeploy, I get a series of errors that all say "could not find state with entity\_id". This occurs for a number of nodes from Home Assistant. 15 Jan 21:35:54 - \[error\] \[poll-state:26f19c7…

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## [Extract a special value from a message](https://discourse.nodered.org/t/extract-a-special-value-from-a-message/21170)

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**Author:** [@ebnerjoh](https://discourse.nodered.org/u/ebnerjoh)\
**Replies:** 1\
**Last updated:** [2 February 2020 13:51 UTC](https://discourse.nodered.org/t/extract-a-special-value-from-a-message/21170 "2020-02-02T13:51:01Z")

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Hi, I want to get Webhooks from my Cisco Webex Teams Account without exposing my Node Red installation. Therefore I registered to node-red-contrib-webhookrelay and I am already receiving messages. {"id":"Y2lzY29zcGFya…

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## [Nodered is abruptly terminate while connecting with cratedb and fetching data from it](https://discourse.nodered.org/t/nodered-is-abruptly-terminate-while-connecting-with-cratedb-and-fetching-data-from-it/21168)

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**Author:** [@hitesh6666k](https://discourse.nodered.org/u/hitesh6666k)\
**Replies:** 1\
**Last updated:** [2 February 2020 11:58 UTC](https://discourse.nodered.org/t/nodered-is-abruptly-terminate-while-connecting-with-cratedb-and-fetching-data-from-it/21168 "2020-02-02T11:58:21Z")

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Hi all, i am trying to connect nodered with cratedb node and fetching data from it. But nodered is abruptly terminated. Below is the logs: 2 Feb 17:04:00 - \[red\] Uncaught Exception: 2 Feb 17:04:00 - Error: connect E…

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## [Combining data in a change node](https://discourse.nodered.org/t/combining-data-in-a-change-node/21165)

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**Author:** [@khfischbach](https://discourse.nodered.org/u/khfischbach)\
**Replies:** 4\
**Last updated:** [2 February 2020 11:51 UTC](https://discourse.nodered.org/t/combining-data-in-a-change-node/21165 "2020-02-02T11:51:28Z")

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Hi, I have stored in a change node my msg.payload to flow.xxx. Now I would like to set msg.payload.content with a String - say "This is my string: " followed by the content of flow.xxx I have tried a JSONata element s…

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## [UDP to UDP Between x 2 Docker containers. Msg.topic missing](https://discourse.nodered.org/t/udp-to-udp-between-x-2-docker-containers-msg-topic-missing/21150)

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**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 12\
**Last updated:** [2 February 2020 10:57 UTC](https://discourse.nodered.org/t/udp-to-udp-between-x-2-docker-containers-msg-topic-missing/21150 "2020-02-02T10:57:12Z")

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Hi, I got above working, it’s gr8! But... it only receives msg.payload, and not msg.topic as well of the msg object. Any change this can be done for UDP send and receive?

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## [Install / Run Zwave in Node Red Docker Image (on RPi)](https://discourse.nodered.org/t/install-run-zwave-in-node-red-docker-image-on-rpi/13467)

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**Author:** [@Qaldak](https://discourse.nodered.org/u/Qaldak)\
**Replies:** 15\
**Last updated:** [2 February 2020 10:21 UTC](https://discourse.nodered.org/t/install-run-zwave-in-node-red-docker-image-on-rpi/13467 "2020-02-02T10:21:13Z")

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Hi all I try to implement Node-Red for my home automatisation. Node-Red runs in Docker on my Raspberry Pi. This works without any problems. But I need Zwave for my Fibaro Motion Sensors. And I can not install node-re…

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## [Unable to Use Node Properties in Node Runtime](https://discourse.nodered.org/t/unable-to-use-node-properties-in-node-runtime/21152)

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**Author:** [@sesenlik](https://discourse.nodered.org/u/sesenlik)\
**Replies:** 3\
**Last updated:** [2 February 2020 07:39 UTC](https://discourse.nodered.org/t/unable-to-use-node-properties-in-node-runtime/21152 "2020-02-02T07:39:48Z")

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Hello everyone, I am trying to build my own node following docs. I want to add node properties like described in Node Properties. I am able to add some extra properties beside Name property but when I try to send these…

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## [How to set the attribute "maxlength" to a textinput](https://discourse.nodered.org/t/how-to-set-the-attribute-maxlength-to-a-textinput/20758)

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**Author:** [@zappogb1](https://discourse.nodered.org/u/zappogb1)\
**Replies:** 3\
**Last updated:** [2 February 2020 00:09 UTC](https://discourse.nodered.org/t/how-to-set-the-attribute-maxlength-to-a-textinput/20758 "2020-02-02T00:09:57Z")

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i want to limit the input size in one text input field Is this possible with the ui\_template or do i have to use st else? The two fields "nickname pick-up" and "ID (Card)" have to be limited.

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## [Node-RED Education](https://discourse.nodered.org/t/node-red-education/21060)

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**Author:** [@stbluesrul](https://discourse.nodered.org/u/stbluesrul)\
**Replies:** 6\
**Last updated:** [1 February 2020 23:44 UTC](https://discourse.nodered.org/t/node-red-education/21060 "2020-02-01T23:44:01Z")

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Does anyone know of an education/learning platform built around Node-RED? I'm looking for something geared to the 8th grade level.

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## [Cast : failed to install](https://discourse.nodered.org/t/cast-failed-to-install/21148)

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**Author:** [@DidierWindey](https://discourse.nodered.org/u/DidierWindey)\
**Replies:** 5\
**Last updated:** [1 February 2020 21:37 UTC](https://discourse.nodered.org/t/cast-failed-to-install/21148 "2020-02-01T21:37:51Z")

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I am trying to install node-red-contrib-cast, but I get the message 'failed to install'. Nodered is running on a Raspberry pi 2. So far I had no problems with other installs. I did already run an update and upgrade. A…

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## [HTTP Post with Parameter and Body](https://discourse.nodered.org/t/http-post-with-parameter-and-body/21132)

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**Author:** [@E\_T](https://discourse.nodered.org/u/E_T)\
**Replies:** 5\
**Last updated:** [1 February 2020 18:27 UTC](https://discourse.nodered.org/t/http-post-with-parameter-and-body/21132 "2020-02-01T18:27:44Z")

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Hello, i have a problem to do a HTTP Post in Node Red. I tested the HTTP Post with the porgramm Postman: Server: https://arche.webuntis.com/WebUntis/jsonrpc.do Parameter school=EBG so Postman shows :https://arche.w…

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## [HTTP Post reply 400](https://discourse.nodered.org/t/http-post-reply-400/21101)

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**Author:** [@khfischbach](https://discourse.nodered.org/u/khfischbach)\
**Replies:** 2\
**Last updated:** [1 February 2020 17:29 UTC](https://discourse.nodered.org/t/http-post-reply-400/21101 "2020-02-01T17:29:08Z")

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Hi, I am trying to create a HTTP Post but I always get a reply "400 Bad Request: No Host Header". I guess I know what it means, but I don't know how to overcome. I have a inject and a function: msg.payload = 'id=625&s…

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## [HTTP Head Request](https://discourse.nodered.org/t/http-head-request/21136)

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**Author:** [@Tscherno](https://discourse.nodered.org/u/Tscherno)\
**Replies:** 4\
**Last updated:** [1 February 2020 16:24 UTC](https://discourse.nodered.org/t/http-head-request/21136 "2020-02-01T16:24:28Z")

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Hi, is there a way to do just a HTTP HEAD request? I want to check if a specific download was updated, but i don't want to download the whole file.

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## [Change Inject Node To Dashboard Button For HTTP](https://discourse.nodered.org/t/change-inject-node-to-dashboard-button-for-http/21139)

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**Author:** [@Randy](https://discourse.nodered.org/u/Randy)\
**Replies:** 2\
**Last updated:** [1 February 2020 16:04 UTC](https://discourse.nodered.org/t/change-inject-node-to-dashboard-button-for-http/21139 "2020-02-01T16:04:09Z")

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I found this flow that controls my Sonoff Mini from the palette using inject nodes. But how do I do that using dashboard buttons instead? \[{"id":"38075045.5bd73","type":"inject","z":"6bbeac55.3f39d4","name":"on","topic"…

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## [Bad idea to use function node instead of separate flow nodes?](https://discourse.nodered.org/t/bad-idea-to-use-function-node-instead-of-separate-flow-nodes/21058)

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**Author:** [@dnoha](https://discourse.nodered.org/u/dnoha)\
**Replies:** 9\
**Last updated:** [1 February 2020 15:36 UTC](https://discourse.nodered.org/t/bad-idea-to-use-function-node-instead-of-separate-flow-nodes/21058 "2020-02-01T15:36:28Z")

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I have sonoff RF receiver which I have take payload and put it to separate switch nodes. Then, there was too many switch nodes, and I try to replace them with only one function node, containting all 'translations' of in…

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## [Override a flow](https://discourse.nodered.org/t/override-a-flow/21138)

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**Author:** [@behtjes](https://discourse.nodered.org/u/behtjes)\
**Replies:** 3\
**Last updated:** [1 February 2020 14:32 UTC](https://discourse.nodered.org/t/override-a-flow/21138 "2020-02-01T14:32:40Z")

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I'm new to node-red. I'm trying to create a flow where my hue sensor activates a scene, and after x seconds it reverts back to the previous state. But now every message gets through the whole flow. So every time the moti…

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## [Websocket node customization](https://discourse.nodered.org/t/websocket-node-customization/21130)

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**Author:** [@Iliyas](https://discourse.nodered.org/u/Iliyas)\
**Replies:** 1\
**Last updated:** [1 February 2020 11:33 UTC](https://discourse.nodered.org/t/websocket-node-customization/21130 "2020-02-01T11:33:29Z")

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Hello, I'm want to give websocket url dynamically to websocket node, i need to customize websocket node. How can I customize the node regarding to this, please help me out

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## [Json array filtering](https://discourse.nodered.org/t/json-array-filtering/21127)

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**Author:** [@redlop](https://discourse.nodered.org/u/redlop)\
**Replies:** 6\
**Last updated:** [1 February 2020 10:43 UTC](https://discourse.nodered.org/t/json-array-filtering/21127 "2020-02-01T10:43:13Z")

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Is there a way to filter a Json array that contains the scanned wifi networks on an area based on their ssid? Because right now every network in the area displays on the ui. I only need the networks with the specific cha…

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## [Node-red-contrib-modbus Version 5.2.0 vs V4.1.3](https://discourse.nodered.org/t/node-red-contrib-modbus-version-5-2-0-vs-v4-1-3/19428)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 6\
**Last updated:** [1 February 2020 07:17 UTC](https://discourse.nodered.org/t/node-red-contrib-modbus-version-5-2-0-vs-v4-1-3/19428 "2020-02-01T07:17:39Z")

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Hello All I have two node red instances, after upgrading the modbus node to the latest version, i got the this error "FSM Reset On State {"value":"failed","actions":,"changed":true}" albeit with the same configuration…

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## [Using Incoming Message in ui\_template Node](https://discourse.nodered.org/t/using-incoming-message-in-ui-template-node/21069)

<div class="topic-metadata">

**Author:** [@sesenlik](https://discourse.nodered.org/u/sesenlik)\
**Replies:** 4\
**Last updated:** [1 February 2020 07:00 UTC](https://discourse.nodered.org/t/using-incoming-message-in-ui-template-node/21069 "2020-02-01T07:00:11Z")

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Hello everyone, I am trying to receive incoming messages within a ui\_template node in my flow. I followed the example in info bar and I am able to receive incoming messages in ui\_template. But when I refresh the page or…

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## [NPM Issues after Beacon Scanner Installed](https://discourse.nodered.org/t/npm-issues-after-beacon-scanner-installed/20891)

<div class="topic-metadata">

**Author:** [@314PITester](https://discourse.nodered.org/u/314PITester)\
**Replies:** 20\
**Last updated:** [31 January 2020 23:06 UTC](https://discourse.nodered.org/t/npm-issues-after-beacon-scanner-installed/20891 "2020-01-31T23:06:57Z")

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Hey guys, Been using Raspberry PIs for various stuff for a while but I have current project I'm working on for around the house. I've been working on some IBeacon stuff using Beacon Scanner node. During my testing I f…

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## [Http request node :Err\_tls\_cert\_altname\_invalid](https://discourse.nodered.org/t/http-request-node-err-tls-cert-altname-invalid/21049)

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**Author:** [@JohnMM](https://discourse.nodered.org/u/JohnMM)\
**Replies:** 7\
**Last updated:** [31 January 2020 23:06 UTC](https://discourse.nodered.org/t/http-request-node-err-tls-cert-altname-invalid/21049 "2020-01-31T23:06:40Z")

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I've been using mqtt and Node RED to update my weather station data to Weather Underground. It was working well until yesterday when I started getting the following error from the http request node: "Error \[ERR\_TLS\_CER…

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