# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1169

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

**Page:** 1170

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## [How to get http headers from node-red-contrib-mdashboard](https://discourse.nodered.org/t/how-to-get-http-headers-from-node-red-contrib-mdashboard/20751)

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**Author:** [@peteryang](https://discourse.nodered.org/u/peteryang)\
**Replies:** 12\
**Last updated:** [24 January 2020 09:04 UTC](https://discourse.nodered.org/t/how-to-get-http-headers-from-node-red-contrib-mdashboard/20751 "2020-01-24T09:04:54Z")

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Hi Is it possible to add one more field to msg beside socketid? For example, add authentication information such as userinfo to identify the authenticated user. (authentication user is another topic and just assumed us…

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## [Raspberry Pi - contrib-python-function won't work](https://discourse.nodered.org/t/raspberry-pi-contrib-python-function-wont-work/20766)

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**Author:** [@pawelkon](https://discourse.nodered.org/u/pawelkon)\
**Replies:** 8\
**Last updated:** [24 January 2020 07:19 UTC](https://discourse.nodered.org/t/raspberry-pi-contrib-python-function-wont-work/20766 "2020-01-24T07:19:29Z")

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Hello all, My name is Pawel and this is my first post on this forum. I would like to set up node, to take MQTT input and display on the MAX7219 device using Node-Red and Raspberry Pi4. I have python script downloaded f…

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## [Multiple and dynamic configuration nodes](https://discourse.nodered.org/t/multiple-and-dynamic-configuration-nodes/20794)

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**Author:** [@ng-galien](https://discourse.nodered.org/u/ng-galien)\
**Replies:** 0\
**Last updated:** [24 January 2020 01:26 UTC](https://discourse.nodered.org/t/multiple-and-dynamic-configuration-nodes/20794 "2020-01-24T01:26:09Z")

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Hello, I'm creating some nodes for home automation. I had created some nodes for inputs/outputs control. They all have a configuration node. RED.nodes.registerType('digital-output',{ category: 'upyHome', …

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## [Http request issue](https://discourse.nodered.org/t/http-request-issue/20746)

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**Author:** [@iskender](https://discourse.nodered.org/u/iskender)\
**Replies:** 6\
**Last updated:** [24 January 2020 01:11 UTC](https://discourse.nodered.org/t/http-request-issue/20746 "2020-01-24T01:11:09Z")

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Hi everyone, I have a rather strange problem with an http-request node. I have 2 nodes. One has 192.168.1.128/data/?statistics={"instagram\_reading":"{{payload}}"} the other has http://esp32.local/data/?statistics={"…

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## [Config on a Synology install using the docker GUI](https://discourse.nodered.org/t/config-on-a-synology-install-using-the-docker-gui/20789)

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**Author:** [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Replies:** 0\
**Last updated:** [23 January 2020 23:12 UTC](https://discourse.nodered.org/t/config-on-a-synology-install-using-the-docker-gui/20789 "2020-01-23T23:12:58Z")

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Hi all, I've installed NodeRed on a Synology NAS using the Docker GUI application, I'm up and running and imported my current flow file and spent an age adding in all the missing nodes. Once thing I don't know how to d…

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## [How to use batch node with concatenate sequences mode](https://discourse.nodered.org/t/how-to-use-batch-node-with-concatenate-sequences-mode/20709)

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**Author:** [@ab73863](https://discourse.nodered.org/u/ab73863)\
**Replies:** 11\
**Last updated:** [23 January 2020 23:11 UTC](https://discourse.nodered.org/t/how-to-use-batch-node-with-concatenate-sequences-mode/20709 "2020-01-23T23:11:39Z")

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Hello, I am trying to understand the batch node with concatenate sequences mode. I am not able find any examples related to usage of this node in concatenate sequences mode. Could anyone please share a sample or pointe…

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## [Spotify to google home](https://discourse.nodered.org/t/spotify-to-google-home/20782)

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**Author:** [@Folgore](https://discourse.nodered.org/u/Folgore)\
**Replies:** 0\
**Last updated:** [23 January 2020 20:28 UTC](https://discourse.nodered.org/t/spotify-to-google-home/20782 "2020-01-23T20:28:55Z")

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Hi, do you think it is possible from node-red to send a command to play a song on google home from spotify? Thank's

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## [Replace variable name from object?](https://discourse.nodered.org/t/replace-variable-name-from-object/20592)

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**Author:** [@slurpey](https://discourse.nodered.org/u/slurpey)\
**Replies:** 2\
**Last updated:** [23 January 2020 20:08 UTC](https://discourse.nodered.org/t/replace-variable-name-from-object/20592 "2020-01-23T20:08:08Z")

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Hi, I'm receiving an IFTTT webhookrelay from Google Home object and I'm trying to use its content. It outputs this: { "type": "webhook", "meta": { "id": "815a9995-208e-44fd-be82-45ec211…

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## [Value from slider](https://discourse.nodered.org/t/value-from-slider/20757)

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**Author:** [@danny\_v1](https://discourse.nodered.org/u/danny_v1)\
**Replies:** 5\
**Last updated:** [23 January 2020 18:44 UTC](https://discourse.nodered.org/t/value-from-slider/20757 "2020-01-23T18:44:28Z")

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Hi to all, first sorry for my english, sometimes it is not the best english. I am new to node red and I have some beginner questions. My actual problem: I want to send a massage to an esp contoller with mqtt. The com…

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## [Blynk v pin value to node red](https://discourse.nodered.org/t/blynk-v-pin-value-to-node-red/20780)

<div class="topic-metadata">

**Author:** [@scottriggle](https://discourse.nodered.org/u/scottriggle)\
**Replies:** 2\
**Last updated:** [23 January 2020 18:41 UTC](https://discourse.nodered.org/t/blynk-v-pin-value-to-node-red/20780 "2020-01-23T18:41:28Z")

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I'm confused with using the node-red-contrib-blynk-ws. Can anyone point me to a way to simply receive a value from Blynk. Like temperature or reed switch hooked up to a virtual pin? I see samples of you have to use a wri…

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## [RBE node in narrowband](https://discourse.nodered.org/t/rbe-node-in-narrowband/20086)

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**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 3\
**Last updated:** [23 January 2020 18:40 UTC](https://discourse.nodered.org/t/rbe-node-in-narrowband/20086 "2020-01-23T18:40:40Z")

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I wonder how the "start value" field is used by the RBE node in narrowband. I thought it would be used as the last input value but could not make it work that way. Also I am puzzled why this field exists when the select…

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## [How do I type an acute accent](https://discourse.nodered.org/t/how-do-i-type-an-acute-accent/20778)

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**Author:** [@Lavio](https://discourse.nodered.org/u/Lavio)\
**Replies:** 4\
**Last updated:** [23 January 2020 17:33 UTC](https://discourse.nodered.org/t/how-do-i-type-an-acute-accent/20778 "2020-01-23T17:33:35Z")

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i want to do a keyboard. how i do the acute accent it´s there a function to wait the letter

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## [Unable to make homekit-bridged work](https://discourse.nodered.org/t/unable-to-make-homekit-bridged-work/20772)

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**Author:** [@bplatypus](https://discourse.nodered.org/u/bplatypus)\
**Replies:** 8\
**Last updated:** [23 January 2020 16:24 UTC](https://discourse.nodered.org/t/unable-to-make-homekit-bridged-work/20772 "2020-01-23T16:24:53Z")

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Hi everyone! I installed node-red on docker on my Synology NAS (ds1819+). Installation was really easy and it works perfectly! I then installed the Philips-Hue stuff and I can control my hue accessories from node-red a…

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## [Arduino node red connection](https://discourse.nodered.org/t/arduino-node-red-connection/20765)

<div class="topic-metadata">

**Author:** [@Prashu](https://discourse.nodered.org/u/Prashu)\
**Replies:** 1\
**Last updated:** [23 January 2020 13:51 UTC](https://discourse.nodered.org/t/arduino-node-red-connection/20765 "2020-01-23T13:51:28Z")

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How can I read the string from serial input and print the output string in serial out at the same time via same serial port in node-red.

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## [How node red is better than cooja](https://discourse.nodered.org/t/how-node-red-is-better-than-cooja/20755)

<div class="topic-metadata">

**Author:** [@sandeep](https://discourse.nodered.org/u/sandeep)\
**Replies:** 5\
**Last updated:** [23 January 2020 13:23 UTC](https://discourse.nodered.org/t/how-node-red-is-better-than-cooja/20755 "2020-01-23T13:23:18Z")

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I am working on IoT data formats. i am in confusion to choose a tool for data format representation and process. can somebody help with this . should i go with node-red or cooja.

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## [Reading influxdb data from another linux system](https://discourse.nodered.org/t/reading-influxdb-data-from-another-linux-system/20762)

<div class="topic-metadata">

**Author:** [@YLM-UJM](https://discourse.nodered.org/u/YLM-UJM)\
**Replies:** 1\
**Last updated:** [23 January 2020 11:43 UTC](https://discourse.nodered.org/t/reading-influxdb-data-from-another-linux-system/20762 "2020-01-23T11:43:57Z")

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I have my Rsp Pi using node red to process some sensors data, then I am saving the data into influxDb. Now I'd like to be able to access my database (influxdb) from my laptop (running with linux). Someone has ideas on ho…

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## [How to keep the temperature test location the same as the location of the soil moisture text?](https://discourse.nodered.org/t/how-to-keep-the-temperature-test-location-the-same-as-the-location-of-the-soil-moisture-text/20742)

<div class="topic-metadata">

**Author:** [@Artwin](https://discourse.nodered.org/u/Artwin)\
**Replies:** 4\
**Last updated:** [23 January 2020 10:57 UTC](https://discourse.nodered.org/t/how-to-keep-the-temperature-test-location-the-same-as-the-location-of-the-soil-moisture-text/20742 "2020-01-23T10:57:25Z")

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## [Nexmo sms problem](https://discourse.nodered.org/t/nexmo-sms-problem/20739)

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**Author:** [@ap29731](https://discourse.nodered.org/u/ap29731)\
**Replies:** 1\
**Last updated:** [23 January 2020 09:56 UTC](https://discourse.nodered.org/t/nexmo-sms-problem/20739 "2020-01-23T09:56:40Z")

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Hi everyone, I m new here, m trying to send sms on my number using nexmo nodes. The debug result says that msg has been sent and money deducted but i m not getting any sms on my number in real?

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## [Adding the first 5 values to compute offset](https://discourse.nodered.org/t/adding-the-first-5-values-to-compute-offset/20616)

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**Author:** [@YLM-UJM](https://discourse.nodered.org/u/YLM-UJM)\
**Replies:** 10\
**Last updated:** [23 January 2020 09:24 UTC](https://discourse.nodered.org/t/adding-the-first-5-values-to-compute-offset/20616 "2020-01-23T09:24:39Z")

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Hi, I have a load cell which a receive the value using MQQT (from my python script), then I would like to save the first 5 value coming from MQTT to compute the offset of my load cell. Then when I will have my offset, I…

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## [Html and CSS files](https://discourse.nodered.org/t/html-and-css-files/8928)

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**Author:** [@d.leuthe](https://discourse.nodered.org/u/d.leuthe)\
**Replies:** 13\
**Last updated:** [23 January 2020 07:59 UTC](https://discourse.nodered.org/t/html-and-css-files/8928 "2020-01-23T07:59:46Z")

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Hi there, where can i find the html and css file for the dashboard to change the style on my local disk. Thanks for help

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## [Send only on changes (for slow modbus poll) - newbie](https://discourse.nodered.org/t/send-only-on-changes-for-slow-modbus-poll-newbie/20557)

<div class="topic-metadata">

**Author:** [@PPz](https://discourse.nodered.org/u/PPz)\
**Replies:** 6\
**Last updated:** [23 January 2020 01:11 UTC](https://discourse.nodered.org/t/send-only-on-changes-for-slow-modbus-poll-newbie/20557 "2020-01-23T01:11:39Z")

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I poll data from a modbus master. 1 poll with 20 consecutive addresses (for now, will increase that later) every 10 seconds. My goal is to send them (MQTT) every minute, or even slower (but I have some modbus connection…

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## [Join, Getting order incorrect sometimes](https://discourse.nodered.org/t/join-getting-order-incorrect-sometimes/20331)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 7\
**Last updated:** [22 January 2020 22:44 UTC](https://discourse.nodered.org/t/join-getting-order-incorrect-sometimes/20331 "2020-01-22T22:44:29Z")

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Hi, I have several payloads I need to joint to form a string, I have a very long winded way and it is cumbersome, how do I stream line it? As sometimes the order gets muddled up.

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## [Raspberry pi4 memory question](https://discourse.nodered.org/t/raspberry-pi4-memory-question/20722)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 5\
**Last updated:** [22 January 2020 22:13 UTC](https://discourse.nodered.org/t/raspberry-pi4-memory-question/20722 "2020-01-22T22:13:25Z")

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I have a raspberry pi 4 2gb running buster and node-red 1.0.3 node -v8.11.3 I know there is a cmd node-red-pi --max-old-space-size=256 to tell the underlying Node.js process to free up unused memory sooner than it woul…

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## [Multiple inputs in function](https://discourse.nodered.org/t/multiple-inputs-in-function/20738)

<div class="topic-metadata">

**Author:** [@HaloElite](https://discourse.nodered.org/u/HaloElite)\
**Replies:** 4\
**Last updated:** [22 January 2020 21:07 UTC](https://discourse.nodered.org/t/multiple-inputs-in-function/20738 "2020-01-22T21:07:39Z")

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I'm trying to handle multiple msg.payload.subobjects to a function node. But when doing so I always get the error ""TypeError: Cannot read property '0' of undefined" ". When I try to get the data with an debug node, ever…

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## [Error: node not deployed - Cant delete the Error](https://discourse.nodered.org/t/error-node-not-deployed-cant-delete-the-error/20361)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 10\
**Last updated:** [22 January 2020 20:27 UTC](https://discourse.nodered.org/t/error-node-not-deployed-cant-delete-the-error/20361 "2020-01-22T20:27:21Z")

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I have a very simple flow. \[{"id":"39737b3.0628584","type":"debug","z":"66472984.929868","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":850,"y":120,"wires":}\] I have co…

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## [Template node for body font-size](https://discourse.nodered.org/t/template-node-for-body-font-size/20743)

<div class="topic-metadata">

**Author:** [@MarcelFinzi](https://discourse.nodered.org/u/MarcelFinzi)\
**Replies:** 1\
**Last updated:** [22 January 2020 20:14 UTC](https://discourse.nodered.org/t/template-node-for-body-font-size/20743 "2020-01-22T20:14:04Z")

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Hi there! I am using the dahboard notification node for showing my errors in my system. Because of the small size of the pop-up Notification I wanted to get it bigger. I thought of the template dashboard node (I wrote …

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## [HASSIO to multiple instances of NodeRed?](https://discourse.nodered.org/t/hassio-to-multiple-instances-of-nodered/20729)

<div class="topic-metadata">

**Author:** [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Replies:** 2\
**Last updated:** [22 January 2020 20:07 UTC](https://discourse.nodered.org/t/hassio-to-multiple-instances-of-nodered/20729 "2020-01-22T20:07:22Z")

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Hi, I've got HASSIO installed on a Pi 3+ with the NodeRed integration running. NodeRed frequently disconnects with an NGinx warning. Thinking that it's all a bit too much for the Pi3+ (I've a lot of devices and integr…

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## [Query Data from influxdb via HTTP GET method](https://discourse.nodered.org/t/query-data-from-influxdb-via-http-get-method/20676)

<div class="topic-metadata">

**Author:** [@user2929](https://discourse.nodered.org/u/user2929)\
**Replies:** 4\
**Last updated:** [22 January 2020 20:04 UTC](https://discourse.nodered.org/t/query-data-from-influxdb-via-http-get-method/20676 "2020-01-22T20:04:06Z")

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Hello there everyone, I am rather new to Node-Red, so please bear with me. What I have: I´ve got a Node-Red Flow working on a Unipi Neuron M503, which logs sensor values every second to an influxdb measurement table. …

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## [How to put a returned JSON object into a variable](https://discourse.nodered.org/t/how-to-put-a-returned-json-object-into-a-variable/20741)

<div class="topic-metadata">

**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 1\
**Last updated:** [22 January 2020 19:18 UTC](https://discourse.nodered.org/t/how-to-put-a-returned-json-object-into-a-variable/20741 "2020-01-22T19:18:57Z")

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We have an outdoor tank with a telemetry unit that we can access via an HTML GET request. I put the GET request into NodeRED and have it outputting the JSON object as an array, but I only care about the 2 things highlig…

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## [Help with bringing variables to dashboard for Blinking example](https://discourse.nodered.org/t/help-with-bringing-variables-to-dashboard-for-blinking-example/20337)

<div class="topic-metadata">

**Author:** [@Argus](https://discourse.nodered.org/u/Argus)\
**Replies:** 1\
**Last updated:** [22 January 2020 19:16 UTC](https://discourse.nodered.org/t/help-with-bringing-variables-to-dashboard-for-blinking-example/20337 "2020-01-22T19:16:29Z")

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Hi all I new to node-red and I trying to toggle the output on my rpi. I found the dsm node and the Blinking example which does everything I want, and here's the but, I'd like to bring the the variables to the dashboard …

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