# Latest

**URL:** https://discourse.nodered.org/latest.md?page=959

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

**Page:** 960

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## [Smart irrigation - Miflora plus 12v relay -](https://discourse.nodered.org/t/smart-irrigation-miflora-plus-12v-relay/35636)

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**Author:** [@Sam\_uk](https://discourse.nodered.org/u/Sam_uk)\
**Replies:** 1\
**Last updated:** [9 November 2020 23:48 UTC](https://discourse.nodered.org/t/smart-irrigation-miflora-plus-12v-relay/35636 "2020-11-09T23:48:59Z")

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So I'm building an irrigation system which turns on when the value received from a Miflora is \<20 So far I have: Pi connected to a relay and a Node-red flow that opens or closes the relays Miflora readings coming in f…

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## [Troubles with node-red on Elementary OS involving Dashboard](https://discourse.nodered.org/t/troubles-with-node-red-on-elementary-os-involving-dashboard/35538)

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**Author:** [@mudmanrv](https://discourse.nodered.org/u/mudmanrv)\
**Replies:** 18\
**Last updated:** [9 November 2020 23:18 UTC](https://discourse.nodered.org/t/troubles-with-node-red-on-elementary-os-involving-dashboard/35538 "2020-11-09T23:18:32Z")

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All, I'm new to node-red, and I'm somewhat new to linux, as I am diving into it for IoT, and amateur radio. I have an older hp laptop running elementary os. I initially installed node-red via snap. I had to work a few…

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## [\[NEW FEATURE\] node-red-contrib-queue-gate (version 1.5.0)](https://discourse.nodered.org/t/new-feature-node-red-contrib-queue-gate-version-1-5-0/35638)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 0\
**Last updated:** [9 November 2020 23:18 UTC](https://discourse.nodered.org/t/new-feature-node-red-contrib-queue-gate-version-1-5-0/35638 "2020-11-09T23:18:31Z")

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This update enhances the capability for persistence of the node state, first introduced in version 1.2.0. Previously, only the default context store was used when the Restore from state saved in option was enabled, so th…

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## [Communicate s7-1200 with node-red via contrib industrialcomm](https://discourse.nodered.org/t/communicate-s7-1200-with-node-red-via-contrib-industrialcomm/35295)

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**Author:** [@ronald.social](https://discourse.nodered.org/u/ronald.social)\
**Replies:** 1\
**Last updated:** [9 November 2020 23:12 UTC](https://discourse.nodered.org/t/communicate-s7-1200-with-node-red-via-contrib-industrialcomm/35295 "2020-11-09T23:12:39Z")

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Hello everyone, I'm having trouble reading data from a db of the s7-1200, the db is missing the offset column and I can't enable it, I wanted the help of you to set up my industrialcomm node to read this data, follow th…

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## [\[ANNOUNCE\] node-red-contrib-chronos](https://discourse.nodered.org/t/announce-node-red-contrib-chronos/33350)

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**Author:** [@jens\_rossbach](https://discourse.nodered.org/u/jens_rossbach)\
**Replies:** 30\
**Last updated:** [9 November 2020 22:05 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-chronos/33350 "2020-11-09T22:05:09Z")

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Hi all, please be informed about my new node package called node-red-contrib-chronos. The package provides nodes to schedule, queue, route or filter messages based on fixed times or sun and moon position events. I hope…

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## [Feeding external data into custom widgets](https://discourse.nodered.org/t/feeding-external-data-into-custom-widgets/35532)

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**Author:** [@AldaSoggn](https://discourse.nodered.org/u/AldaSoggn)\
**Replies:** 7\
**Last updated:** [9 November 2020 21:12 UTC](https://discourse.nodered.org/t/feeding-external-data-into-custom-widgets/35532 "2020-11-09T21:12:57Z")

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Hello Node-RED community. I started my first Node-RED project and so far i am loving it! I am having troubles feeding some external values into some widgets: Using the stoptimer-varidelay from hamsando i want to injec…

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## [How to create a color gradient for RGB bulbs](https://discourse.nodered.org/t/how-to-create-a-color-gradient-for-rgb-bulbs/35561)

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**Author:** [@ToonMeynen](https://discourse.nodered.org/u/ToonMeynen)\
**Replies:** 1\
**Last updated:** [9 November 2020 20:12 UTC](https://discourse.nodered.org/t/how-to-create-a-color-gradient-for-rgb-bulbs/35561 "2020-11-09T20:12:26Z")

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Hi, I'm looking for a method to go from one hex color to another in a gradient. I found this wonderful website which gives me an array of hex codes. That all together create a gradient from one color to the other. The …

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## [Only Allowed 5 OPCUA-Client Nodes?](https://discourse.nodered.org/t/only-allowed-5-opcua-client-nodes/35630)

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**Author:** [@psalibe](https://discourse.nodered.org/u/psalibe)\
**Replies:** 0\
**Last updated:** [9 November 2020 20:11 UTC](https://discourse.nodered.org/t/only-allowed-5-opcua-client-nodes/35630 "2020-11-09T20:11:38Z")

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Hello, I am creating a flow with multiple injections for different metrics which all point to their own OPCUA-Client node so that I can create individual gauges/charts for each of them on the UI page. For some reason, …

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## [Decimal offset bufer.parser](https://discourse.nodered.org/t/decimal-offset-bufer-parser/35608)

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**Author:** [@thecoder](https://discourse.nodered.org/u/thecoder)\
**Replies:** 7\
**Last updated:** [9 November 2020 19:18 UTC](https://discourse.nodered.org/t/decimal-offset-bufer-parser/35608 "2020-11-09T19:18:45Z")

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Hi, The buffer parser node doesn't allow decimal values at box length and offset box. I need to get the value in group of bits smaller than 8 bits=1byte, in this example, 3 bits representation. How can I do it?

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## [Custom UI node translation](https://discourse.nodered.org/t/custom-ui-node-translation/34836)

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**Author:** [@fellinga](https://discourse.nodered.org/u/fellinga)\
**Replies:** 1\
**Last updated:** [5 November 2020 20:05 UTC](https://discourse.nodered.org/t/custom-ui-node-translation/34836 "2020-11-05T20:05:35Z")

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I am currently trying to translate my custom UI node and there are some things that I just can't figure out. How do I add translation to the nodes defaults in myNode.html? The following does not work: defaults: { …

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## [Dockerized EACCESS](https://discourse.nodered.org/t/dockerized-eaccess/35624)

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**Author:** [@Chura](https://discourse.nodered.org/u/Chura)\
**Replies:** 0\
**Last updated:** [9 November 2020 18:23 UTC](https://discourse.nodered.org/t/dockerized-eaccess/35624 "2020-11-09T18:23:05Z")

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I'm trying to install a module from the UI, I get this error which is not to informative. When doing this from the shell, using npm install, it is working, but for some reason not persist trough docker recycling. 9 Nov…

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## [Size of dashboard tiles](https://discourse.nodered.org/t/size-of-dashboard-tiles/35597)

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**Author:** [@Antrac1t](https://discourse.nodered.org/u/Antrac1t)\
**Replies:** 4\
**Last updated:** [9 November 2020 18:18 UTC](https://discourse.nodered.org/t/size-of-dashboard-tiles/35597 "2020-11-09T18:18:42Z")

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Hello, i am interesting about if is possible to change width and height of default grid of dashboard tiles. For this moment width/height for one tile is 48px, if there are more then 2 tiles then need also count space 6p…

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## [Convert MQTT-JSON to CSV](https://discourse.nodered.org/t/convert-mqtt-json-to-csv/35600)

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**Author:** [@kf-netconnect](https://discourse.nodered.org/u/kf-netconnect)\
**Replies:** 1\
**Last updated:** [9 November 2020 17:04 UTC](https://discourse.nodered.org/t/convert-mqtt-json-to-csv/35600 "2020-11-09T17:04:02Z")

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Hey Guys! i'm having trouble converting MQTT Messages to CSV format. my mqtt-in node delivers a parsed json object with this format: { "d":{ "ItemValue 1":100, "ItemValue 2":200, "ItemValue 3":300, "ItemValue 4":…

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## [TCP out node port question](https://discourse.nodered.org/t/tcp-out-node-port-question/35618)

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**Author:** [@KiwiTrinitrotoluene](https://discourse.nodered.org/u/KiwiTrinitrotoluene)\
**Replies:** 1\
**Last updated:** [9 November 2020 16:34 UTC](https://discourse.nodered.org/t/tcp-out-node-port-question/35618 "2020-11-09T16:34:33Z")

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Hi all, i recently started using the tcp out node to send some simple packets to a client. So basically, i simply configure my node with ip and RX port of my client and then send my nice payloads to it. All is working f…

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## [Node-red-contrib-google path parameters](https://discourse.nodered.org/t/node-red-contrib-google-path-parameters/35614)

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**Author:** [@Frank-LR](https://discourse.nodered.org/u/Frank-LR)\
**Replies:** 0\
**Last updated:** [9 November 2020 16:19 UTC](https://discourse.nodered.org/t/node-red-contrib-google-path-parameters/35614 "2020-11-09T16:19:10Z")

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Hi, I try to make a connection to my google cloud with node-red-contrib-google but can't find out how to pass path parameter example: in postman I can call (with OAuth 2) https://dialogflow.googleapis.com/v2/projects…

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## [Mqtt - node-red - influxdb](https://discourse.nodered.org/t/mqtt-node-red-influxdb/34706)

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**Author:** [@trombose009](https://discourse.nodered.org/u/trombose009)\
**Replies:** 23\
**Last updated:** [9 November 2020 15:53 UTC](https://discourse.nodered.org/t/mqtt-node-red-influxdb/34706 "2020-11-09T15:53:47Z")

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Hello, I'M totally new to this stuff but I have set up a functional environement on a raspberry pi 4 containing mosquitto, grafana, node-red, influxdb and telegraf. I am able to send messages via mqtt (from, for exampl…

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## [How do i address this object?](https://discourse.nodered.org/t/how-do-i-address-this-object/35610)

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**Author:** [@Toontje](https://discourse.nodered.org/u/Toontje)\
**Replies:** 4\
**Last updated:** [9 November 2020 15:32 UTC](https://discourse.nodered.org/t/how-do-i-address-this-object/35610 "2020-11-09T15:32:59Z")

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I want to parse the number of these objects in my function node. How do i address these objects?

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## [Error when installing/removing nodes](https://discourse.nodered.org/t/error-when-installing-removing-nodes/35586)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 6\
**Last updated:** [9 November 2020 15:31 UTC](https://discourse.nodered.org/t/error-when-installing-removing-nodes/35586 "2020-11-09T15:31:52Z")

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Whenever I add or remove any contrib nodes, I always get the error below. The directory /home/pi/.node-red/node\_modules/mdns does not exist, and mdns is not listed in my package.json The second 'warning' is something r…

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## [Is there a maximum number of NORA nodes that can be deployed?](https://discourse.nodered.org/t/is-there-a-maximum-number-of-nora-nodes-that-can-be-deployed/35602)

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**Author:** [@kes](https://discourse.nodered.org/u/kes)\
**Replies:** 0\
**Last updated:** [9 November 2020 14:06 UTC](https://discourse.nodered.org/t/is-there-a-maximum-number-of-nora-nodes-that-can-be-deployed/35602 "2020-11-09T14:06:00Z")

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I had 17 NORA nodes deployed, and 9 or so of them connected sucessfully to the NORA server, intermittently. While at times all 17 nodes connected sucessfully, over time the number connecting varied, which rendered the …

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## [Limitation on number of links (connections)](https://discourse.nodered.org/t/limitation-on-number-of-links-connections/35609)

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**Author:** [@r0ller](https://discourse.nodered.org/u/r0ller)\
**Replies:** 1\
**Last updated:** [9 November 2020 15:13 UTC](https://discourse.nodered.org/t/limitation-on-number-of-links-connections/35609 "2020-11-09T15:13:32Z")

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Hi All, Just a quick question due to a design I'm trying to make work under node-red ( https://discourse.nodered.org/t/command-design-pattern/35461 ). Is there any limitation on the number of links/connections a functi…

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## [Reference variable name in a loop](https://discourse.nodered.org/t/reference-variable-name-in-a-loop/35556)

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**Author:** [@fogmajor](https://discourse.nodered.org/u/fogmajor)\
**Replies:** 4\
**Last updated:** [9 November 2020 15:10 UTC](https://discourse.nodered.org/t/reference-variable-name-in-a-loop/35556 "2020-11-09T15:10:23Z")

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Good evening I have a function looking at a string of 6 characters, my function uses a loop to look at each character in turn and if the value matches a temp value a event occurs. I have at the beginning of the functio…

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## [Seeking Node-red mentors for a hackathon](https://discourse.nodered.org/t/seeking-node-red-mentors-for-a-hackathon/35603)

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**Author:** [@ninjamoba](https://discourse.nodered.org/u/ninjamoba)\
**Replies:** 0\
**Last updated:** [9 November 2020 14:12 UTC](https://discourse.nodered.org/t/seeking-node-red-mentors-for-a-hackathon/35603 "2020-11-09T14:12:27Z")

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Seeking node-red mentors to volunteer to help during hackathon. \*\* 12 - 13 November 2020\*\* teamjop.com (EU vs Virus Winner Biggest hackathon in the world) in cooperation with Digieduhack is hosting a challenge to be bui…

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## [Problem with dashboard dropdown between node-red 1.1.3 and 1.2.2](https://discourse.nodered.org/t/problem-with-dashboard-dropdown-between-node-red-1-1-3-and-1-2-2/35416)

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**Author:** [@DavidE1A](https://discourse.nodered.org/u/DavidE1A)\
**Replies:** 7\
**Last updated:** [9 November 2020 13:28 UTC](https://discourse.nodered.org/t/problem-with-dashboard-dropdown-between-node-red-1-1-3-and-1-2-2/35416 "2020-11-09T13:28:58Z")

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Hi all. I'm having trouble with something that was (and still is) working fine on one machine running node-red 1.1.3, but not on a new installation on another machine that has 1.2.2 installed. I'm sending images from a …

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## [Operate with hexadecimal](https://discourse.nodered.org/t/operate-with-hexadecimal/35503)

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**Author:** [@thecoder](https://discourse.nodered.org/u/thecoder)\
**Replies:** 18\
**Last updated:** [9 November 2020 10:13 UTC](https://discourse.nodered.org/t/operate-with-hexadecimal/35503 "2020-11-09T10:13:45Z")

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I would like to operate with hexadecimal values inside the function node. 1) convert integer to hexadecimal, 2) concatonate multiple hedecimal values and 3) convert them again to integer. Is it possible?

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## [Support for node-red-contrib-azureiothubnode](https://discourse.nodered.org/t/support-for-node-red-contrib-azureiothubnode/35581)

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**Author:** [@psmtvdw](https://discourse.nodered.org/u/psmtvdw)\
**Replies:** 7\
**Last updated:** [9 November 2020 09:36 UTC](https://discourse.nodered.org/t/support-for-node-red-contrib-azureiothubnode/35581 "2020-11-09T09:36:51Z")

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message for contributors of node-red-contrib-azureiothub anthonyvercolano azure-sdk jebrando microsoft windowsazure Anyone can give me a tip how to contact these guys? I am using node-red-contrib-azureiothub (v0.5.3)…

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## [Background color change of custom node in workspace](https://discourse.nodered.org/t/background-color-change-of-custom-node-in-workspace/35579)

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**Author:** [@josekavunkal](https://discourse.nodered.org/u/josekavunkal)\
**Replies:** 2\
**Last updated:** [9 November 2020 08:58 UTC](https://discourse.nodered.org/t/background-color-change-of-custom-node-in-workspace/35579 "2020-11-09T08:58:03Z")

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Can the custom node background color can be different when the node is in workspace?. When I drag and drop the node to workspace I need a different color which is not same as that when it is pallet.

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## [How to merge data of two arrays by key "month" (mapping) into 1 array and add calculations?](https://discourse.nodered.org/t/how-to-merge-data-of-two-arrays-by-key-month-mapping-into-1-array-and-add-calculations/35382)

<div class="topic-metadata">

**Author:** [@ChillXXL](https://discourse.nodered.org/u/ChillXXL)\
**Replies:** 11\
**Last updated:** [9 November 2020 08:51 UTC](https://discourse.nodered.org/t/how-to-merge-data-of-two-arrays-by-key-month-mapping-into-1-array-and-add-calculations/35382 "2020-11-09T08:51:18Z")

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Hi, I try to merge data from 2 arrays into 1 based on the same date (or key). \[USE-CASE\]: net power usage I want to calculate my net powerusage by subtracting (eliminating) my kW used by my electric car charger to an…

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## [usb-Serial-port:how to send a message with hex for RTU Modbus?](https://discourse.nodered.org/t/usb-serial-port-how-to-send-a-message-with-hex-for-rtu-modbus/35572)

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**Author:** [@Davidtsai](https://discourse.nodered.org/u/Davidtsai)\
**Replies:** 0\
**Last updated:** [9 November 2020 03:34 UTC](https://discourse.nodered.org/t/usb-serial-port-how-to-send-a-message-with-hex-for-rtu-modbus/35572 "2020-11-09T03:34:54Z")

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Dear all : I am use node red serial output to send a message to our modbus device and use python to send message to our modbus device is OK , but when I am use node red serial output or request to send the same message…

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## [A MacOS cloud desktop, where we can test our nodes](https://discourse.nodered.org/t/a-macos-cloud-desktop-where-we-can-test-our-nodes/35522)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 7\
**Last updated:** [8 November 2020 22:33 UTC](https://discourse.nodered.org/t/a-macos-cloud-desktop-where-we-can-test-our-nodes/35522 "2020-11-08T22:33:05Z")

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Hi folks, I received a Github issue about the SVG node: seems a couple of things don't work correctly on Safari/Chrome on MacOs. However I don't have a MacOS, and I don't know anything about MacOS... I remember that @…

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## [Switch node is not working](https://discourse.nodered.org/t/switch-node-is-not-working/35569)

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**Author:** [@dangoodhead](https://discourse.nodered.org/u/dangoodhead)\
**Replies:** 10\
**Last updated:** [8 November 2020 22:11 UTC](https://discourse.nodered.org/t/switch-node-is-not-working/35569 "2020-11-08T22:11:49Z")

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I trying to get a very simple flow to work. It has a virtual alexa device which is connected at all times to my amazon account. I then have this going to a switch node with String ON and one with string OFF. These …

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