# Latest

**URL:** https://discourse.nodered.org/latest.md?page=751

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

**Page:** 752

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## [Dashboard \> Template Node \> Table has rows with checkboxes. Example of a "CheckAll"](https://discourse.nodered.org/t/dashboard-template-node-table-has-rows-with-checkboxes-example-of-a-checkall/49851)

<div class="topic-metadata">

**Author:** [@twack](https://discourse.nodered.org/u/twack)\
**Replies:** 1\
**Last updated:** [17 August 2021 18:06 UTC](https://discourse.nodered.org/t/dashboard-template-node-table-has-rows-with-checkboxes-example-of-a-checkall/49851 "2021-08-17T18:06:19Z")

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Hi folks, I have a table in a UI Template Node that contains a list of items. The list is long so I would really like to implement "Check All / Uncheck All" functionality using a checkbox contained within the header row…

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## [How to emit events?](https://discourse.nodered.org/t/how-to-emit-events/49839)

<div class="topic-metadata">

**Author:** [@Daft11](https://discourse.nodered.org/u/Daft11)\
**Replies:** 5\
**Last updated:** [17 August 2021 16:34 UTC](https://discourse.nodered.org/t/how-to-emit-events/49839 "2021-08-17T16:34:52Z")

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Hello! I'm creating custom node and having a hard time understanding how to execute/trigger/emit custom event (with listener in js part) from editor (html part). Is that even possible?

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## [Problem with custom UI node and replaying data](https://discourse.nodered.org/t/problem-with-custom-ui-node-and-replaying-data/49478)

<div class="topic-metadata">

**Author:** [@Christian-Me](https://discourse.nodered.org/u/Christian-Me)\
**Replies:** 16\
**Last updated:** [17 August 2021 13:59 UTC](https://discourse.nodered.org/t/problem-with-custom-ui-node-and-replaying-data/49478 "2021-08-17T13:59:05Z")

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Hello, I have a problem with replaying persistent data creating a custom chart ui-widget. After hours of debugging perhaps someone can help: every message creates a new datapoint on the dashboard (works as expected) I…

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## [Initial Message of hysteresis node](https://discourse.nodered.org/t/initial-message-of-hysteresis-node/49832)

<div class="topic-metadata">

**Author:** [@Petuur](https://discourse.nodered.org/u/Petuur)\
**Replies:** 1\
**Last updated:** [17 August 2021 12:39 UTC](https://discourse.nodered.org/t/initial-message-of-hysteresis-node/49832 "2021-08-17T12:39:00Z")

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Hi there, I am using Node-RED version 2.0.5 and Node.JS version 16.6.1 and the node-red-contrib-hysteresis module. I want the hysteresis node to output its initial state, but that does not work with the flow below. Doe…

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## [Group/Team development workflow](https://discourse.nodered.org/t/group-team-development-workflow/7069)

<div class="topic-metadata">

**Author:** [@Naes0](https://discourse.nodered.org/u/Naes0)\
**Replies:** 17\
**Last updated:** [17 August 2021 12:28 UTC](https://discourse.nodered.org/t/group-team-development-workflow/7069 "2021-08-17T12:28:41Z")

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Hi guys, I'm looking into using Node-RED in a team development environment and was curious if anyone had a workflow for this already? I'm currently using version control for most of the basic stuff and I have flowfilepr…

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## [What parameters i need to push to addFlow func?](https://discourse.nodered.org/t/what-parameters-i-need-to-push-to-addflow-func/49824)

<div class="topic-metadata">

**Author:** [@Snoz3f](https://discourse.nodered.org/u/Snoz3f)\
**Replies:** 5\
**Last updated:** [17 August 2021 12:20 UTC](https://discourse.nodered.org/t/what-parameters-i-need-to-push-to-addflow-func/49824 "2021-08-17T12:20:29Z")

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Hello. Can you explain please what parameters i need to push in this function. I checked documentation but it does not contain a normal explanation

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## [Node-red-contrib-blockly which blockly version is being used?](https://discourse.nodered.org/t/node-red-contrib-blockly-which-blockly-version-is-being-used/49806)

<div class="topic-metadata">

**Author:** [@rth](https://discourse.nodered.org/u/rth)\
**Replies:** 7\
**Last updated:** [17 August 2021 12:16 UTC](https://discourse.nodered.org/t/node-red-contrib-blockly-which-blockly-version-is-being-used/49806 "2021-08-17T12:16:22Z")

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Hello I have to questions regardig node-red-blockly and I would love if someone could help me. Which version is being used in the node-red-blockly? Why do I get a empty toolbox when I download the newst node-red-blockl…

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## [Contrib-s7 - Debug setting in the config node](https://discourse.nodered.org/t/contrib-s7-debug-setting-in-the-config-node/49836)

<div class="topic-metadata">

**Author:** [@dathor](https://discourse.nodered.org/u/dathor)\
**Replies:** 0\
**Last updated:** [17 August 2021 12:06 UTC](https://discourse.nodered.org/t/contrib-s7-debug-setting-in-the-config-node/49836 "2021-08-17T12:06:34Z")

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Hello I am using the contrib-s7 nodes to communicate to an s7-1500 PLC. When i am not connected though I do not want the end point config nodes to generate errors in the debug window. I saw that there was a Debug sett…

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## [Stream from UI microphone over MQTT](https://discourse.nodered.org/t/stream-from-ui-microphone-over-mqtt/49648)

<div class="topic-metadata">

**Author:** [@patlas](https://discourse.nodered.org/u/patlas)\
**Replies:** 5\
**Last updated:** [17 August 2021 11:45 UTC](https://discourse.nodered.org/t/stream-from-ui-microphone-over-mqtt/49648 "2021-08-17T11:45:56Z")

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Hi, I am wondering if is it possible to edit node-red-ui-nodes/node-red-node-ui-microphone to send raw data buffer over mqtt. I would like to set package size (or hardcoded it) and when buffer is full send it over mqtt …

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## [\[ANNOUNCE\] node-red-contrib-blockly : 2.0.0 betas (currently at beta 2)](https://discourse.nodered.org/t/announce-node-red-contrib-blockly-2-0-0-betas-currently-at-beta-2/49092)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 31\
**Last updated:** [17 August 2021 09:43 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-blockly-2-0-0-betas-currently-at-beta-2/49092 "2021-08-17T09:43:10Z")

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Hi folks, After 3 years of inactivity, @cymplecy and myself are proud to present version 2.0.0-beta.1 of the node-red-contrib-blockly node :partying\_face: :clinking\_glasses: :champagne: Every year around Christmas Simo…

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## [Sending data to Jupyter Notebook and getting output back](https://discourse.nodered.org/t/sending-data-to-jupyter-notebook-and-getting-output-back/49794)

<div class="topic-metadata">

**Author:** [@aryans14](https://discourse.nodered.org/u/aryans14)\
**Replies:** 3\
**Last updated:** [17 August 2021 09:38 UTC](https://discourse.nodered.org/t/sending-data-to-jupyter-notebook-and-getting-output-back/49794 "2021-08-17T09:38:23Z")

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I want to pass some set of values to Jupyter Notebook (I already done coding in a notebook there) where a function will take these values and return me the output. I want to get this data back in Node Red to display. An…

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## [Check if at least two out of five booleans are true](https://discourse.nodered.org/t/check-if-at-least-two-out-of-five-booleans-are-true/49596)

<div class="topic-metadata">

**Author:** [@Duncan](https://discourse.nodered.org/u/Duncan)\
**Replies:** 20\
**Last updated:** [17 August 2021 09:10 UTC](https://discourse.nodered.org/t/check-if-at-least-two-out-of-five-booleans-are-true/49596 "2021-08-17T09:10:11Z")

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Good morning just a quick question. How would I go about the following? Check if at least two out of five booleans are true. I am sure there must be a node for this. thanx

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## [How to set color priority with node-red-node-ui-table](https://discourse.nodered.org/t/how-to-set-color-priority-with-node-red-node-ui-table/49829)

<div class="topic-metadata">

**Author:** [@Giu-seppe](https://discourse.nodered.org/u/Giu-seppe)\
**Replies:** 0\
**Last updated:** [17 August 2021 09:08 UTC](https://discourse.nodered.org/t/how-to-set-color-priority-with-node-red-node-ui-table/49829 "2021-08-17T09:08:39Z")

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Hi, I am using the "node-red-node-ui-table" in a customized version of the dashboard but I am having some problems with the CSS properties. Right now there is the CSS property that overrides the SVG one, as shown in th…

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## [API for configuring & watching the editor?](https://discourse.nodered.org/t/api-for-configuring-watching-the-editor/49035)

<div class="topic-metadata">

**Author:** [@ItayKishon-Vayyar](https://discourse.nodered.org/u/ItayKishon-Vayyar)\
**Replies:** 3\
**Last updated:** [17 August 2021 08:58 UTC](https://discourse.nodered.org/t/api-for-configuring-watching-the-editor/49035 "2021-08-17T08:58:56Z")

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Hi, A project I'm working on is using the node-red editor as some sort of interface to the main system. For that, I'm looking for a way to both configure the editor itself and watch (hook) when something happens. I vag…

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## [Running SSH against Synology NAS](https://discourse.nodered.org/t/running-ssh-against-synology-nas/49799)

<div class="topic-metadata">

**Author:** [@faranhor](https://discourse.nodered.org/u/faranhor)\
**Replies:** 2\
**Last updated:** [17 August 2021 07:25 UTC](https://discourse.nodered.org/t/running-ssh-against-synology-nas/49799 "2021-08-17T07:25:14Z")

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I saw another post from someone else having the same issue. I'm using BigSSH node as a client and couldn't get a command to run. Being very tired when I got to this part of the flow I didn't catch the exception in time b…

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## [How to extract string information](https://discourse.nodered.org/t/how-to-extract-string-information/49786)

<div class="topic-metadata">

**Author:** [@DSongra11\_forum.com](https://discourse.nodered.org/u/DSongra11_forum.com)\
**Replies:** 2\
**Last updated:** [17 August 2021 07:15 UTC](https://discourse.nodered.org/t/how-to-extract-string-information/49786 "2021-08-17T07:15:25Z")

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Hello, I want to extract string information as read mark in screenshot like lastname, firstname, cardholderTypeUID etc. and same for other, that information I want to show on dashboard or send to Modbus TCP communicatio…

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## [Node-red with firebase](https://discourse.nodered.org/t/node-red-with-firebase/49815)

<div class="topic-metadata">

**Author:** [@almostz](https://discourse.nodered.org/u/almostz)\
**Replies:** 6\
**Last updated:** [17 August 2021 07:05 UTC](https://discourse.nodered.org/t/node-red-with-firebase/49815 "2021-08-17T07:05:55Z")

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why I cannot connect to firebase via node-red v2.0.5 in Debian google cloud service but I can connect to node-red v1.2.1 via IOT2040 siemens please help me.

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## [Node-red-contrib-dht-sensor palette install error](https://discourse.nodered.org/t/node-red-contrib-dht-sensor-palette-install-error/49781)

<div class="topic-metadata">

**Author:** [@owmath](https://discourse.nodered.org/u/owmath)\
**Replies:** 2\
**Last updated:** [17 August 2021 01:55 UTC](https://discourse.nodered.org/t/node-red-contrib-dht-sensor-palette-install-error/49781 "2021-08-17T01:55:42Z")

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I went to install a manage palette called: node-red-contrib-dht-sensor and it gave me this error, it seems to be Python but I already have Python installed, how do I solve this? Event log ------------------------------…

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## [Why can't I connect LDR sensor?](https://discourse.nodered.org/t/why-cant-i-connect-ldr-sensor/49809)

<div class="topic-metadata">

**Author:** [@owmath](https://discourse.nodered.org/u/owmath)\
**Replies:** 2\
**Last updated:** [17 August 2021 00:51 UTC](https://discourse.nodered.org/t/why-cant-i-connect-ldr-sensor/49809 "2021-08-17T00:51:05Z")

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1- First of all I have StandardFirmata loaded for my Arduino board connected to COM4 port: 2- After opening Node Red and Deploying, only the LED works and the LDR does not connect 3- Both are connected to the same…

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## [Dashboard Browser Tab Title - Set from a variable](https://discourse.nodered.org/t/dashboard-browser-tab-title-set-from-a-variable/49751)

<div class="topic-metadata">

**Author:** [@twack](https://discourse.nodered.org/u/twack)\
**Replies:** 9\
**Last updated:** [17 August 2021 00:01 UTC](https://discourse.nodered.org/t/dashboard-browser-tab-title-set-from-a-variable/49751 "2021-08-17T00:01:39Z")

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I'd like to use a variable to set the Browser's Title in it's tab. I know you can manually set it in dashboard settings, but that is not desired as I have numerous instances running (100+) at different locations. Thank …

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## [Http in receive a post](https://discourse.nodered.org/t/http-in-receive-a-post/49808)

<div class="topic-metadata">

**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 4\
**Last updated:** [16 August 2021 21:39 UTC](https://discourse.nodered.org/t/http-in-receive-a-post/49808 "2021-08-16T21:39:23Z")

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Hi I need to receive data from a datalogger, it post the data every 15min. But how do i set this up in NodeRED. Do I need to install a webserver or can i use port 1880 ? I also did try to make a test to see if it wor…

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## [Gauge.js library & Node-Red](https://discourse.nodered.org/t/gauge-js-library-node-red/49449)

<div class="topic-metadata">

**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 16\
**Last updated:** [16 August 2021 10:55 UTC](https://discourse.nodered.org/t/gauge-js-library-node-red/49449 "2021-08-16T10:55:28Z")

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I have used gauge.js library on a HTML/python project with good results. How can I now use this library within Node-Red or Node-Red-template?

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## [Using other node.js modules](https://discourse.nodered.org/t/using-other-node-js-modules/364)

<div class="topic-metadata">

**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 14\
**Last updated:** [16 August 2021 19:59 UTC](https://discourse.nodered.org/t/using-other-node-js-modules/364 "2021-08-16T19:59:26Z")

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As this is the place to put some dreams… I know there is possible to use other node.js modules however and after one year playing with node red is for me still not clear how to use this. Will be great if there is some …

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## [Memory limits on Rpi processing chart data](https://discourse.nodered.org/t/memory-limits-on-rpi-processing-chart-data/49805)

<div class="topic-metadata">

**Author:** [@trust](https://discourse.nodered.org/u/trust)\
**Replies:** 5\
**Last updated:** [16 August 2021 19:44 UTC](https://discourse.nodered.org/t/memory-limits-on-rpi-processing-chart-data/49805 "2021-08-16T19:44:19Z")

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I'm using Pi zero w and Rpi3s with a custom BMS running node-red for a user interface. One of the options is displaying log data, saved as a CSV file. I process it and feed it to charts based on selected criteria for dis…

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## [How increase the size of ui-template](https://discourse.nodered.org/t/how-increase-the-size-of-ui-template/49804)

<div class="topic-metadata">

**Author:** [@oualid](https://discourse.nodered.org/u/oualid)\
**Replies:** 2\
**Last updated:** [16 August 2021 19:03 UTC](https://discourse.nodered.org/t/how-increase-the-size-of-ui-template/49804 "2021-08-16T19:03:14Z")

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hi, I create a table which contain a list of events. I want to increase the size of ui-template in order to display all the table in page and without using the scroll. I looked for a solution in the internet but i didn'…

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## [converting number](https://discourse.nodered.org/t/converting-number/15294)

<div class="topic-metadata">

**Author:** [@bunicht](https://discourse.nodered.org/u/bunicht)\
**Replies:** 5\
**Last updated:** [16 August 2021 18:22 UTC](https://discourse.nodered.org/t/converting-number/15294 "2021-08-16T18:22:09Z")

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Hello!Im new to this and i'm trying to make a split of a number. The payload comes from Mqtt,actually a IFM AL1920 I/O link module I'm trying to split it into 6 payloads so i can read the temp, level and status of the m…

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## [Deploy a dashboard button that stops another flow](https://discourse.nodered.org/t/deploy-a-dashboard-button-that-stops-another-flow/49802)

<div class="topic-metadata">

**Author:** [@ponyo](https://discourse.nodered.org/u/ponyo)\
**Replies:** 2\
**Last updated:** [16 August 2021 16:57 UTC](https://discourse.nodered.org/t/deploy-a-dashboard-button-that-stops-another-flow/49802 "2021-08-16T16:57:06Z")

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Hi, I have 3 groups that continuously send data that constantly changes. I wanted to output the data but only when I click the dashboard button that corresponds to the relevant group. So far I have it so that when the …

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## [Interface Node-RED with arduino](https://discourse.nodered.org/t/interface-node-red-with-arduino/49795)

<div class="topic-metadata">

**Author:** [@RafaelMarquesRibeiro](https://discourse.nodered.org/u/RafaelMarquesRibeiro)\
**Replies:** 1\
**Last updated:** [16 August 2021 16:19 UTC](https://discourse.nodered.org/t/interface-node-red-with-arduino/49795 "2021-08-16T16:19:22Z")

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Hello! Im developing a project in node-red that has the input of a numbpad. I'm now trying to test it with Arduino Uno and a keypad 4x4. I´ve tried StandartFirmata and tried to modify it to work with keypad but was unsu…

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## [Safe tab characters in template nodes?](https://discourse.nodered.org/t/safe-tab-characters-in-template-nodes/49763)

<div class="topic-metadata">

**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 2\
**Last updated:** [16 August 2021 16:03 UTC](https://discourse.nodered.org/t/safe-tab-characters-in-template-nodes/49763 "2021-08-16T16:03:16Z")

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When I got back from vacation, I noticed my flows had reverted to some older version. I found the latest version in .node-red/flows\_golrath...json but the flows file that was being used was .node-red/flows\_golrathlocaldo…

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## [A Couple of problems I have with the Numeric Widget](https://discourse.nodered.org/t/a-couple-of-problems-i-have-with-the-numeric-widget/49800)

<div class="topic-metadata">

**Author:** [@ozpos](https://discourse.nodered.org/u/ozpos)\
**Replies:** 0\
**Last updated:** [16 August 2021 15:41 UTC](https://discourse.nodered.org/t/a-couple-of-problems-i-have-with-the-numeric-widget/49800 "2021-08-16T15:41:26Z")

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About the example. The Timer() interval can be set from the UI or by sending a new value in a msg.payload. The Timer() can be triggered or canceled via msg.topic. User input range problem. If the widget displays a v…

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