# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1082

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

**Page:** 1083

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## [How to Remove Node from Node-red Permanently?](https://discourse.nodered.org/t/how-to-remove-node-from-node-red-permanently/27317)

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**Author:** [@Squirrelbd](https://discourse.nodered.org/u/Squirrelbd)\
**Replies:** 2\
**Last updated:** [26 May 2020 15:04 UTC](https://discourse.nodered.org/t/how-to-remove-node-from-node-red-permanently/27317 "2020-05-26T15:04:06Z")

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To remove a node from node-red permanently, we have to go to settings, plotter then removes any of the nodes, Like shown in this video. Is there any other way to remove node from node red?

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## [Accessing msg properties that have a non standard variable identifier](https://discourse.nodered.org/t/accessing-msg-properties-that-have-a-non-standard-variable-identifier/27316)

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**Author:** [@tfmeier](https://discourse.nodered.org/u/tfmeier)\
**Replies:** 3\
**Last updated:** [26 May 2020 14:13 UTC](https://discourse.nodered.org/t/accessing-msg-properties-that-have-a-non-standard-variable-identifier/27316 "2020-05-26T14:13:26Z")

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I'm running into a problem with a function block to create fields for an InfluxDB connector. I use the JSON string to object conversion node in Node-RED and it correctly creates the object {"CF1":1,"CF2.5":1,"CF10":1,"PM…

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## [Node-red-contrib-zip corrupts on unzip](https://discourse.nodered.org/t/node-red-contrib-zip-corrupts-on-unzip/27212)

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**Author:** [@Jonvic1891](https://discourse.nodered.org/u/Jonvic1891)\
**Replies:** 9\
**Last updated:** [26 May 2020 12:56 UTC](https://discourse.nodered.org/t/node-red-contrib-zip-corrupts-on-unzip/27212 "2020-05-26T12:56:59Z")

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Im trying to Zip some photos so that i can send them via email but when i zip them and then unzip them the unziped file corrupts. When i open it the message states "Error interpreting JPEG image file (Not a JPEG file: s…

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## [Disable node selection](https://discourse.nodered.org/t/disable-node-selection/27304)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 4\
**Last updated:** [26 May 2020 12:42 UTC](https://discourse.nodered.org/t/disable-node-selection/27304 "2020-05-26T12:42:55Z")

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I was going to make a feature request to be able to disable a set of selected nodes but it I then thought Is that going to be available with up-coming group mode? Maybe it can be done already?

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## [typedInput multiple checkBox list](https://discourse.nodered.org/t/typedinput-multiple-checkbox-list/27276)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 5\
**Last updated:** [26 May 2020 11:13 UTC](https://discourse.nodered.org/t/typedinput-multiple-checkbox-list/27276 "2020-05-26T11:13:57Z")

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Hi all, I am attempting to make a dropdown checkbox list for a contrib nodes option ui. I have sped a good deal of time trying to make it look part of node-red & went to the source of typedInput (packages\\node\_modules\\@…

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## [Not ordinary using function node and flow.set/get](https://discourse.nodered.org/t/not-ordinary-using-function-node-and-flow-set-get/27286)

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**Author:** [@offreal](https://discourse.nodered.org/u/offreal)\
**Replies:** 4\
**Last updated:** [26 May 2020 09:15 UTC](https://discourse.nodered.org/t/not-ordinary-using-function-node-and-flow-set-get/27286 "2020-05-26T09:15:54Z")

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Hi, there. Did you using all function node features? Today I found solution how to make function node send specified message without any input msg. Just try this: \[{"id":"9c663e52.a1985","type":"function","z":"696d25…

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## [Heating water with solar power and node-red-contrib-pid](https://discourse.nodered.org/t/heating-water-with-solar-power-and-node-red-contrib-pid/26930)

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**Author:** [@MartinH](https://discourse.nodered.org/u/MartinH)\
**Replies:** 8\
**Last updated:** [26 May 2020 09:14 UTC](https://discourse.nodered.org/t/heating-water-with-solar-power-and-node-red-contrib-pid/26930 "2020-05-26T09:14:07Z")

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Hi Guys, question about node-red-contrib-pid, heating water, solar power and, of course, nodered. What i have: I am using a small solar plant for my own use, about 1.5KW peak. When the sun shines an i dont use much e…

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## [Can't update table cell data dynamically](https://discourse.nodered.org/t/cant-update-table-cell-data-dynamically/27133)

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**Author:** [@notnice](https://discourse.nodered.org/u/notnice)\
**Replies:** 10\
**Last updated:** [26 May 2020 08:52 UTC](https://discourse.nodered.org/t/cant-update-table-cell-data-dynamically/27133 "2020-05-26T08:52:54Z")

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I'm trying to dynamically update a cells data in a table as below i.e. change the displayed SSID in the table when it is updated. My function is as below (currently testing with static table index ID): msg.payload = …

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## [Help with injecting a boolean value into a payload?](https://discourse.nodered.org/t/help-with-injecting-a-boolean-value-into-a-payload/9223)

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**Author:** [@Kroissantti](https://discourse.nodered.org/u/Kroissantti)\
**Replies:** 9\
**Last updated:** [25 May 2020 23:32 UTC](https://discourse.nodered.org/t/help-with-injecting-a-boolean-value-into-a-payload/9223 "2020-05-25T23:32:30Z")

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I am trying to inject a true or false value into my Siemens S7-300 PLC. I can only manage to send numbers trough inject node JSON for example: {"Value":\[5\]}. I need to toggle inputs on my PLC with a boolean value. Here …

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## [I have a question. Sensor data classification](https://discourse.nodered.org/t/i-have-a-question-sensor-data-classification/27270)

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**Author:** [@Athurian](https://discourse.nodered.org/u/Athurian)\
**Replies:** 9\
**Last updated:** [25 May 2020 19:52 UTC](https://discourse.nodered.org/t/i-have-a-question-sensor-data-classification/27270 "2020-05-25T19:52:51Z")

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As shown in the photo above, i2c succeeded in fetching data values. The problem is that it is difficult to distinguish the payload values. For example, in the first case it is ph, in the second case it is temperature a…

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## [How do I write 0xFF00 to a modbus coil?](https://discourse.nodered.org/t/how-do-i-write-0xff00-to-a-modbus-coil/24089)

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**Author:** [@nrbrt](https://discourse.nodered.org/u/nrbrt)\
**Replies:** 7\
**Last updated:** [25 May 2020 18:55 UTC](https://discourse.nodered.org/t/how-do-i-write-0xff00-to-a-modbus-coil/24089 "2020-05-25T18:55:06Z")

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Hi, I have a HF6508 modbus IO device and reading it works fine and writing to a coil using node.js also works like a charm. I am having difficulty translating this from my node.js program that uses the modbus-serial mod…

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## [Google blinds, nora openPercent works but close/open blinds command doesn't](https://discourse.nodered.org/t/google-blinds-nora-openpercent-works-but-close-open-blinds-command-doesnt/27268)

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**Author:** [@gdr2404](https://discourse.nodered.org/u/gdr2404)\
**Replies:** 3\
**Last updated:** [25 May 2020 18:46 UTC](https://discourse.nodered.org/t/google-blinds-nora-openpercent-works-but-close-open-blinds-command-doesnt/27268 "2020-05-25T18:46:30Z")

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Ive set up a sequence to open and close my bedroom blinds, all works fine if i use the inject node. I would like to use nora so i can use google to open and close them. When debugging the blinds node if i say "hey googl…

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## [Choice between 2 images](https://discourse.nodered.org/t/choice-between-2-images/27258)

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**Author:** [@RomainF](https://discourse.nodered.org/u/RomainF)\
**Replies:** 6\
**Last updated:** [25 May 2020 17:30 UTC](https://discourse.nodered.org/t/choice-between-2-images/27258 "2020-05-25T17:30:06Z")

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Hello, I'm creating a Weather Station using sensors and I would like it to be interactive. I mean than if it's raining then below the value there will be an image of rain and if it's not raining then an image of the su…

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## [NR Install Script - “Failed to install node.js” error](https://discourse.nodered.org/t/nr-install-script-failed-to-install-node-js-error/13813)

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**Author:** [@nodecentral](https://discourse.nodered.org/u/nodecentral)\
**Replies:** 18\
**Last updated:** [25 May 2020 17:08 UTC](https://discourse.nodered.org/t/nr-install-script-failed-to-install-node-js-error/13813 "2020-05-25T17:08:22Z")

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Hi I’ve been trying to install Node Red using a headless Debian OS on a virtual machine, but whenever I try to run the provided NR script (https://nodered.org/docs/getting-started/raspberrypi) , it does not get past the…

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## [Node-Red Update issue after ubuntu update](https://discourse.nodered.org/t/node-red-update-issue-after-ubuntu-update/27271)

<div class="topic-metadata">

**Author:** [@kocherjj](https://discourse.nodered.org/u/kocherjj)\
**Replies:** 1\
**Last updated:** [25 May 2020 16:29 UTC](https://discourse.nodered.org/t/node-red-update-issue-after-ubuntu-update/27271 "2020-05-25T16:29:17Z")

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I ran into an issue today that I was able to simply resolve after some google searching but wanted to mention it here in case there is an underlying error that could be resolved. I have been running Ubuntu Server 64Bit …

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## [JSONata question](https://discourse.nodered.org/t/jsonata-question/27201)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 9\
**Last updated:** [25 May 2020 15:21 UTC](https://discourse.nodered.org/t/jsonata-question/27201 "2020-05-25T15:21:25Z")

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I am extracting data from my smart meter and thought I could make this change node into a one liner. But for the life of me I cannot replace "calc" in the second entry in the node with the reference to the value in the f…

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## [SofarSolar inverter - NodeRED as remote server for getting statistics](https://discourse.nodered.org/t/sofarsolar-inverter-nodered-as-remote-server-for-getting-statistics/27253)

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**Author:** [@Mckenzi](https://discourse.nodered.org/u/Mckenzi)\
**Replies:** 4\
**Last updated:** [25 May 2020 14:03 UTC](https://discourse.nodered.org/t/sofarsolar-inverter-nodered-as-remote-server-for-getting-statistics/27253 "2020-05-25T14:03:11Z")

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Dear All, Was trying to find the solution by myself but i failed. I have Sofar Solar inverter which has an option to send data to more servers . ( default is ginlong). How to get the data from inverter using Node-RE…

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## [Hourglass Timer Node problem](https://discourse.nodered.org/t/hourglass-timer-node-problem/25446)

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**Author:** [@affinite](https://discourse.nodered.org/u/affinite)\
**Replies:** 3\
**Last updated:** [25 May 2020 13:47 UTC](https://discourse.nodered.org/t/hourglass-timer-node-problem/25446 "2020-05-25T13:47:36Z")

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Hi I'm using the Hourglass node as a timer for engine hours on a boat. The node works great if I treat it nicely by issuing it with "start" and stop" commands however if my (RPi) system is shut down with the timer runn…

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## [Advice on monitoring the status of a switched output please](https://discourse.nodered.org/t/advice-on-monitoring-the-status-of-a-switched-output-please/27254)

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**Author:** [@Bodad](https://discourse.nodered.org/u/Bodad)\
**Replies:** 2\
**Last updated:** [25 May 2020 13:44 UTC](https://discourse.nodered.org/t/advice-on-monitoring-the-status-of-a-switched-output-please/27254 "2020-05-25T13:44:53Z")

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Hi, I'm looking for advice on a good way to monitor when the status of a switched device is different from the switch position. I've been using Node-red for a few weeks now, learning how to control a number of ESP8266s…

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## [Hidden subflow after import](https://discourse.nodered.org/t/hidden-subflow-after-import/27259)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 2\
**Last updated:** [25 May 2020 13:43 UTC](https://discourse.nodered.org/t/hidden-subflow-after-import/27259 "2020-05-25T13:43:54Z")

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I imported this example flow, which contains a subflow, but the subflow does not appear in the palette. The result is that I cannot delete it. I can see that it is there in the flows file. I have tried restarting node…

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## [How to edit pie chart width and height with ui\_template](https://discourse.nodered.org/t/how-to-edit-pie-chart-width-and-height-with-ui-template/27060)

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**Author:** [@RyuunosukeDS3](https://discourse.nodered.org/u/RyuunosukeDS3)\
**Replies:** 28\
**Last updated:** [25 May 2020 10:45 UTC](https://discourse.nodered.org/t/how-to-edit-pie-chart-width-and-height-with-ui-template/27060 "2020-05-25T10:45:05Z")

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Hello, fellas. I've been building a dashboard for where I work, and its basically done. But i have a situation similar to this one: How do I edit it in the ui\_template? I've tried using css with its class canvas { wi…

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## [Activate or deactivate a node according the state of a switch](https://discourse.nodered.org/t/activate-or-deactivate-a-node-according-the-state-of-a-switch/27244)

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**Author:** [@zanonim](https://discourse.nodered.org/u/zanonim)\
**Replies:** 6\
**Last updated:** [25 May 2020 10:42 UTC](https://discourse.nodered.org/t/activate-or-deactivate-a-node-according-the-state-of-a-switch/27244 "2020-05-25T10:42:05Z")

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Hi Would it be possible to make a switch node active or inactive in a dashboard according to the status of another switch? For example, if switch "A" closes the flow of water, switch "B" which allows you to choose whet…

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## [DropBox node not responding to new file in DropBox](https://discourse.nodered.org/t/dropbox-node-not-responding-to-new-file-in-dropbox/24155)

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**Author:** [@DamianosS](https://discourse.nodered.org/u/DamianosS)\
**Replies:** 12\
**Last updated:** [25 May 2020 10:16 UTC](https://discourse.nodered.org/t/dropbox-node-not-responding-to-new-file-in-dropbox/24155 "2020-05-25T10:16:38Z")

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Hi all, Before opening an issue, I'd request for advice regarding any logging or monitoring means, to allow a better issue description and issue reproduction. What is happening: I have a DropBox node watching for any n…

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## [Node red custom websocket how to handle connections](https://discourse.nodered.org/t/node-red-custom-websocket-how-to-handle-connections/24145)

<div class="topic-metadata">

**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 4\
**Last updated:** [25 May 2020 10:05 UTC](https://discourse.nodered.org/t/node-red-custom-websocket-how-to-handle-connections/24145 "2020-05-25T10:05:48Z")

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I have written a WebSocket code for creating WebSocket connections dynamically. Below is the custom node code. module.exports = function(RED) { var WebSocket = require('ws'); function CustomWebSocketListener(co…

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## [Custom Node error \[object Object\]](https://discourse.nodered.org/t/custom-node-error-object-object/27239)

<div class="topic-metadata">

**Author:** [@Serge](https://discourse.nodered.org/u/Serge)\
**Replies:** 3\
**Last updated:** [25 May 2020 09:52 UTC](https://discourse.nodered.org/t/custom-node-error-object-object/27239 "2020-05-25T09:52:32Z")

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I have a need for dynamic Websocket's for my project. However this isn't supported by the core nodes. I came across VIKRAMAS's posts on this forum, about the nodes he has written with dynamic Websocket support. Here: C…

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## [Help with RF Bridge](https://discourse.nodered.org/t/help-with-rf-bridge/27211)

<div class="topic-metadata">

**Author:** [@robfix](https://discourse.nodered.org/u/robfix)\
**Replies:** 4\
**Last updated:** [25 May 2020 09:13 UTC](https://discourse.nodered.org/t/help-with-rf-bridge/27211 "2020-05-25T09:13:17Z")

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Hi all This is my first topic please be gentle with me. I hope some of you can help me with a project I’m trying to do. Iv been on this project for a week and getting nowhere as I’m new to node red. If anyone can poin…

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## [Scan code automatization](https://discourse.nodered.org/t/scan-code-automatization/26936)

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**Author:** [@belo0196](https://discourse.nodered.org/u/belo0196)\
**Replies:** 30\
**Last updated:** [25 May 2020 08:02 UTC](https://discourse.nodered.org/t/scan-code-automatization/26936 "2020-05-25T08:02:26Z")

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hello all, i'm starting to use Node-Red and i would like to compare a number code ( 123456 ) that is in an email, between a code in input (barcode 123456) and than do something. I'm doing this for a school project like …

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## [Multiple Modbus RTU Slaves causes error](https://discourse.nodered.org/t/multiple-modbus-rtu-slaves-causes-error/18783)

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**Author:** [@joearkay](https://discourse.nodered.org/u/joearkay)\
**Replies:** 12\
**Last updated:** [25 May 2020 07:40 UTC](https://discourse.nodered.org/t/multiple-modbus-rtu-slaves-causes-error/18783 "2020-05-25T07:40:49Z")

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Hi all, I'm using thenode-red-contrib-modbus node, with two slave devices with addresses 1 and 101. Both have the same settings, for RTU-BUFFERED: Baud rate: 9600 Data bits: 8 Stop bits: 1 Parity: None I've confirm…

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## [Trace error - Unknown context store '1588626347214' specified. Using default store](https://discourse.nodered.org/t/trace-error-unknown-context-store-1588626347214-specified-using-default-store/26095)

<div class="topic-metadata">

**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 6\
**Last updated:** [25 May 2020 07:00 UTC](https://discourse.nodered.org/t/trace-error-unknown-context-store-1588626347214-specified-using-default-store/26095 "2020-05-25T07:00:36Z")

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HI, I am trying to trace where this error comes from - I have about 30 context data in 6 different flows, snot that easy to find - or is it? 04/05/2020, 23:05:48 msg : string\[69\] "Unknown context store '1588626347214…

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## [PIR object counter using two](https://discourse.nodered.org/t/pir-object-counter-using-two/27230)

<div class="topic-metadata">

**Author:** [@Becherer](https://discourse.nodered.org/u/Becherer)\
**Replies:** 1\
**Last updated:** [25 May 2020 04:37 UTC](https://discourse.nodered.org/t/pir-object-counter-using-two/27230 "2020-05-25T04:37:56Z")

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Hello, I have two PIR sensors that I would like to use to count people coming in and out of door. The sensors are placed one in front of the other. So depending on if PIR sensor on pin 38 is tripped first then PIR sensor…

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