# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1307

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

**Page:** 1308

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## [Extract elements from the retrieved html document](https://discourse.nodered.org/t/extract-elements-from-the-retrieved-html-document/8719)

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**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\
**Replies:** 4\
**Last updated:** [8 March 2019 09:00 UTC](https://discourse.nodered.org/t/extract-elements-from-the-retrieved-html-document/8719 "2019-03-08T09:00:33Z")

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1/ To begin, I followed this cookbook to pick a value in the Nodered website : Great ! I managed to display the version of nodeRed (with some modifications of the flow) \["v0.19.6"\]. 2/ Now I'm going to do the same …

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## [Help! How Fix it i got bitcoin mulware](https://discourse.nodered.org/t/help-how-fix-it-i-got-bitcoin-mulware/3843)

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**Author:** [@kullboys](https://discourse.nodered.org/u/kullboys)\
**Replies:** 2\
**Last updated:** [10 October 2018 05:07 UTC](https://discourse.nodered.org/t/help-how-fix-it-i-got-bitcoin-mulware/3843 "2018-10-10T05:07:49Z")

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Hello everyone help me my node-red got bitcoin script mulware like this because i'm not authen node-red how can i fix it Thanks.

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## [SQLite triggers](https://discourse.nodered.org/t/sqlite-triggers/8627)

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**Author:** [@Stylo](https://discourse.nodered.org/u/Stylo)\
**Replies:** 3\
**Last updated:** [7 March 2019 22:31 UTC](https://discourse.nodered.org/t/sqlite-triggers/8627 "2019-03-07T22:31:01Z")

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Does anyone know if I can run a SQL trigger in Node-Red to have it push information through the flow whenever the database is updated?

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## [Issue retrieving json from mqtt](https://discourse.nodered.org/t/issue-retrieving-json-from-mqtt/8680)

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**Author:** [@Deca](https://discourse.nodered.org/u/Deca)\
**Replies:** 16\
**Last updated:** [7 March 2019 19:59 UTC](https://discourse.nodered.org/t/issue-retrieving-json-from-mqtt/8680 "2019-03-07T19:59:10Z")

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Hi there, I'm starting to use nodered for the first time and I'm trying to get data from a mqtt device for further processing (output on dashboard, save on mongodb and so on) I built the flow with dummy json object and…

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## [Feature Request: Register JSONata function](https://discourse.nodered.org/t/feature-request-register-jsonata-function/7381)

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**Author:** [@dustinw](https://discourse.nodered.org/u/dustinw)\
**Replies:** 9\
**Last updated:** [7 March 2019 18:54 UTC](https://discourse.nodered.org/t/feature-request-register-jsonata-function/7381 "2019-03-07T18:54:47Z")

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I would like to be able to register JSONata functions. My use case: I want a simple wrapper around momment.js available in my JSONata expressions ... I can see how being able to register a JSONata function could make a g…

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## [SD card deleted on accident](https://discourse.nodered.org/t/sd-card-deleted-on-accident/8707)

<div class="topic-metadata">

**Author:** [@IvarMvl](https://discourse.nodered.org/u/IvarMvl)\
**Replies:** 1\
**Last updated:** [7 March 2019 14:35 UTC](https://discourse.nodered.org/t/sd-card-deleted-on-accident/8707 "2019-03-07T14:35:42Z")

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I know this is not a node-red question but yesterday i deleted the right part of my SD card Is there any way i can get it back? i didnt find anything my self. did i just delete everything of can i get it back from …

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## [Ist it possible to (and if yes how can I) directly import the content of 1 array / object in a XML?](https://discourse.nodered.org/t/ist-it-possible-to-and-if-yes-how-can-i-directly-import-the-content-of-1-array-object-in-a-xml/8522)

<div class="topic-metadata">

**Author:** [@jycemea](https://discourse.nodered.org/u/jycemea)\
**Replies:** 33\
**Last updated:** [7 March 2019 13:39 UTC](https://discourse.nodered.org/t/ist-it-possible-to-and-if-yes-how-can-i-directly-import-the-content-of-1-array-object-in-a-xml/8522 "2019-03-07T13:39:33Z")

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Hi, I succeed to format my json objects in XML to make a API request, but I can't get directly their value ... Below, I'm just importing the name of the array... and not the content of them? Does someone knows how to d…

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## [In node red how to use drop down node for getting multiple values result store](https://discourse.nodered.org/t/in-node-red-how-to-use-drop-down-node-for-getting-multiple-values-result-store/8704)

<div class="topic-metadata">

**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 0\
**Last updated:** [7 March 2019 11:57 UTC](https://discourse.nodered.org/t/in-node-red-how-to-use-drop-down-node-for-getting-multiple-values-result-store/8704 "2019-03-07T11:57:51Z")

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I wanted 3 drop down list, based on 1st drop down selection 2nd drop down list options should come, and based on 2nd 3rd drop down list should come. The payload is \[{ "controller": "S000", "sensorConf": \[{ "sens…

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## [How to Facebook API conect?](https://discourse.nodered.org/t/how-to-facebook-api-conect/8711)

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**Author:** [@DiegoTelles](https://discourse.nodered.org/u/DiegoTelles)\
**Replies:** 0\
**Last updated:** [7 March 2019 13:36 UTC](https://discourse.nodered.org/t/how-to-facebook-api-conect/8711 "2019-03-07T13:36:23Z")

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Hello guys, Has anyone ever been able to make requests to facebook or even post api? I tried several times, but I did not succeed in any of them, either with nodes or with code. Thank\`s

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## [Node red dashboard from bluemix cloudant data](https://discourse.nodered.org/t/node-red-dashboard-from-bluemix-cloudant-data/8705)

<div class="topic-metadata">

**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 3\
**Last updated:** [7 March 2019 13:11 UTC](https://discourse.nodered.org/t/node-red-dashboard-from-bluemix-cloudant-data/8705 "2019-03-07T13:11:01Z")

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Hello I have implemented a node-red flow on bluemix to take data from my IoT device and send it to a cloudant database. My IoT device only sends data once every few hours so I'd like to plot historical data sent by the…

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## [Can be stop interval flow with function](https://discourse.nodered.org/t/can-be-stop-interval-flow-with-function/8693)

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**Author:** [@junoprima](https://discourse.nodered.org/u/junoprima)\
**Replies:** 4\
**Last updated:** [7 March 2019 12:15 UTC](https://discourse.nodered.org/t/can-be-stop-interval-flow-with-function/8693 "2019-03-07T12:15:12Z")

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Hi I query a mysql database with function for last data and send to mqtt but i use inject interval every 1 sec i need to stop interval when i get a mqtt message to stop sending but if the last data has change i need …

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## [Nodered on bluemix](https://discourse.nodered.org/t/nodered-on-bluemix/8684)

<div class="topic-metadata">

**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 3\
**Last updated:** [7 March 2019 12:10 UTC](https://discourse.nodered.org/t/nodered-on-bluemix/8684 "2019-03-07T12:10:47Z")

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have successfully password protected my node-red UI which is installed on my desktop. I am trying to do the same with the node-red UI on my IBM bluemix account. I have read the relevant settings are located in the "blue…

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## [What would be the impact of upgrading ws 1.1.5, a dependency of node-red? (ws has a known high vulnerability)](https://discourse.nodered.org/t/what-would-be-the-impact-of-upgrading-ws-1-1-5-a-dependency-of-node-red-ws-has-a-known-high-vulnerability/8697)

<div class="topic-metadata">

**Author:** [@pkorecki](https://discourse.nodered.org/u/pkorecki)\
**Replies:** 2\
**Last updated:** [7 March 2019 10:24 UTC](https://discourse.nodered.org/t/what-would-be-the-impact-of-upgrading-ws-1-1-5-a-dependency-of-node-red-ws-has-a-known-high-vulnerability/8697 "2019-03-07T10:24:46Z")

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Hello, In a project I am working on we're using node-red in order to extend project's capabilities. The final docker image is scanned with different tools to identify security vulnerabilities, and one of reported high …

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## [Controlling several groups of hue light](https://discourse.nodered.org/t/controlling-several-groups-of-hue-light/8691)

<div class="topic-metadata">

**Author:** [@Mobility3](https://discourse.nodered.org/u/Mobility3)\
**Replies:** 3\
**Last updated:** [7 March 2019 09:37 UTC](https://discourse.nodered.org/t/controlling-several-groups-of-hue-light/8691 "2019-03-07T09:37:01Z")

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Hi there, My target is to change brightness of Hue lights in several groups simultanuously back and forth when motion is detected. At first I tried using the alert functionality, but the problem was that light state ch…

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## [Table Not Displaying with One Row](https://discourse.nodered.org/t/table-not-displaying-with-one-row/8666)

<div class="topic-metadata">

**Author:** [@JonG98](https://discourse.nodered.org/u/JonG98)\
**Replies:** 1\
**Last updated:** [7 March 2019 09:13 UTC](https://discourse.nodered.org/t/table-not-displaying-with-one-row/8666 "2019-03-07T09:13:22Z")

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Thanks to all of the folks here that have gotten me started. Here is the dilemma I have. I have a table that is formatted with the following syntax: \<font size="6"\> \<table id="table" border="1" width="100%" \> \<tr\>…

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## [Getting data to CSV](https://discourse.nodered.org/t/getting-data-to-csv/8690)

<div class="topic-metadata">

**Author:** [@camo200sx](https://discourse.nodered.org/u/camo200sx)\
**Replies:** 1\
**Last updated:** [7 March 2019 06:47 UTC](https://discourse.nodered.org/t/getting-data-to-csv/8690 "2019-03-07T06:47:24Z")

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Heya! First off I'm very new to Node Red and equally new to Javascript. Anyways, I have a modbus sensor here (soon to be 6), and have it up and running. After writing a couple registers I read a couple of registers and…

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## [Auto refresh to home tab](https://discourse.nodered.org/t/auto-refresh-to-home-tab/8670)

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**Author:** [@rjdelbueno](https://discourse.nodered.org/u/rjdelbueno)\
**Replies:** 4\
**Last updated:** [6 March 2019 23:58 UTC](https://discourse.nodered.org/t/auto-refresh-to-home-tab/8670 "2019-03-06T23:58:21Z")

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I am looking for a way to have the dashboard auto-refresh to home tab after a specified amount of inactivity. Any ideas on this?

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## [Node Red SerialPort Update Did Not Work](https://discourse.nodered.org/t/node-red-serialport-update-did-not-work/8648)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 10\
**Last updated:** [6 March 2019 21:56 UTC](https://discourse.nodered.org/t/node-red-serialport-update-did-not-work/8648 "2019-03-06T21:56:38Z")

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I tried to upgrade to version 0.7.0 for the Serial Port Node, and it did not go correctly. Now I am having difficulty reinstalling it. I have run npm install node-red-node-serialport, but get the following error when I…

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## [ESP-EYE, an ESP32-based board for AI](https://discourse.nodered.org/t/esp-eye-an-esp32-based-board-for-ai/7379)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 2\
**Last updated:** [6 March 2019 20:50 UTC](https://discourse.nodered.org/t/esp-eye-an-esp32-based-board-for-ai/7379 "2019-03-06T20:50:26Z")

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Hi folks, One of my fellow workers has shared today an interesting link about ESP-EYE, which is an ESP32 based board for AI: And here is their Github page. I have no time to play with this at the moment ( :woozy\_fac…

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## [How to change installed contrib node (IOT Core/MQTT)](https://discourse.nodered.org/t/how-to-change-installed-contrib-node-iot-core-mqtt/8676)

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**Author:** [@Serfempo](https://discourse.nodered.org/u/Serfempo)\
**Replies:** 9\
**Last updated:** [6 March 2019 19:44 UTC](https://discourse.nodered.org/t/how-to-change-installed-contrib-node-iot-core-mqtt/8676 "2019-03-06T19:44:09Z")

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I have been using the node-red-contrib-google-iot-core module to publish to Google's IOT Core MQTT broker and it has been working well. However I want to subscribe to the broker to receive commands on my device from the…

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## [Dropdown node issue](https://discourse.nodered.org/t/dropdown-node-issue/8667)

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**Author:** [@fabnavigator](https://discourse.nodered.org/u/fabnavigator)\
**Replies:** 1\
**Last updated:** [6 March 2019 17:42 UTC](https://discourse.nodered.org/t/dropdown-node-issue/8667 "2019-03-06T17:42:21Z")

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I have two dropdown nodes, one on one tab, and the other on a second tab. If I manually inject options into them to setup the dropdown items everything works as expected. When I automatically inject the same items, they …

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## [OSC installation help](https://discourse.nodered.org/t/osc-installation-help/8653)

<div class="topic-metadata">

**Author:** [@Gaze\_80](https://discourse.nodered.org/u/Gaze_80)\
**Replies:** 3\
**Last updated:** [6 March 2019 15:42 UTC](https://discourse.nodered.org/t/osc-installation-help/8653 "2019-03-06T15:42:40Z")

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hi! im fairly new to using node-red and npm. im having a little trouble installing the osc node and i was wondering if i could get some insight as to what exactly my errors are with this install. i have copied and paste…

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## [Influxdb output error handling](https://discourse.nodered.org/t/influxdb-output-error-handling/8658)

<div class="topic-metadata">

**Author:** [@cuxcrider](https://discourse.nodered.org/u/cuxcrider)\
**Replies:** 6\
**Last updated:** [6 March 2019 14:43 UTC](https://discourse.nodered.org/t/influxdb-output-error-handling/8658 "2019-03-06T14:43:09Z")

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Hi all, I am successfully writing to my Influxdb using a json message. I'm writing one message per second and so far everything works perfectly. However, I am looking for advice how to do this more intelligently. S…

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## [In node-red dynamic output in function](https://discourse.nodered.org/t/in-node-red-dynamic-output-in-function/8664)

<div class="topic-metadata">

**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 5\
**Last updated:** [6 March 2019 14:19 UTC](https://discourse.nodered.org/t/in-node-red-dynamic-output-in-function/8664 "2019-03-06T14:19:34Z")

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In node-red I wanted the dynamic function output based on message length as I am integrating with chart having multiple line(so message will be in array). So, I wanted the output node of function to be based on function …

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## [How to remove Raspberry PI nodes in 0.19.6?](https://discourse.nodered.org/t/how-to-remove-raspberry-pi-nodes-in-0-19-6/8632)

<div class="topic-metadata">

**Author:** [@WeeSee](https://discourse.nodered.org/u/WeeSee)\
**Replies:** 2\
**Last updated:** [6 March 2019 13:43 UTC](https://discourse.nodered.org/t/how-to-remove-raspberry-pi-nodes-in-0-19-6/8632 "2019-03-06T13:43:23Z")

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My NodeRED instance in running in the cloud. There is no hardware attached. How can the 4 Rasberry PI nodes (keyboard, GPIO in/GPIO out) be removed from the Node palette at the left side? I tried to "npm uninstall" som…

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## [Function node with 2 different outputs](https://discourse.nodered.org/t/function-node-with-2-different-outputs/8660)

<div class="topic-metadata">

**Author:** [@mani2411](https://discourse.nodered.org/u/mani2411)\
**Replies:** 8\
**Last updated:** [6 March 2019 10:16 UTC](https://discourse.nodered.org/t/function-node-with-2-different-outputs/8660 "2019-03-06T10:16:23Z")

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hi all i am interfacing dht sensor with arduino and getting serial data on raspberry pi through node red now i want to create only 1 function to differentiate between temperature and humidity Now i need the js of funct…

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## [Error while trying to POST JSON data to the service Now API](https://discourse.nodered.org/t/error-while-trying-to-post-json-data-to-the-service-now-api/8659)

<div class="topic-metadata">

**Author:** [@Albin](https://discourse.nodered.org/u/Albin)\
**Replies:** 1\
**Last updated:** [6 March 2019 08:56 UTC](https://discourse.nodered.org/t/error-while-trying-to-post-json-data-to-the-service-now-api/8659 "2019-03-06T08:56:53Z")

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Hello , Am new to Node-red. Tried to create an incident in service now by posting JSON data to the rest api. Error: getaddrinfo ENOTFOUND xxxxx.service-now.com xxxxx.service-now.com:443 : https://xxxxx.service-now.com…

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## [MPL3115A2 sensor with raspberry pi](https://discourse.nodered.org/t/mpl3115a2-sensor-with-raspberry-pi/8657)

<div class="topic-metadata">

**Author:** [@manal](https://discourse.nodered.org/u/manal)\
**Replies:** 3\
**Last updated:** [6 March 2019 07:26 UTC](https://discourse.nodered.org/t/mpl3115a2-sensor-with-raspberry-pi/8657 "2019-03-06T07:26:16Z")

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Hi all, I have MPL3115A2 sensor for temperature and pressure and it is connected with raspberry pi . I want to use a node-red to get data from this sensor. Is there any way to do that? note: this sensor use i2c port …

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## [Connect to raspberry pi gpio pins that's not running node-red](https://discourse.nodered.org/t/connect-to-raspberry-pi-gpio-pins-thats-not-running-node-red/8650)

<div class="topic-metadata">

**Author:** [@mebrunner24](https://discourse.nodered.org/u/mebrunner24)\
**Replies:** 5\
**Last updated:** [6 March 2019 07:15 UTC](https://discourse.nodered.org/t/connect-to-raspberry-pi-gpio-pins-thats-not-running-node-red/8650 "2019-03-06T07:15:58Z")

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I would like to know if it's possible to have a raspberry pi (or cluster of Pi's) on a network that you can still communicate to and utilize the node-red gpio flows? The raspberry pi with the gpio pins being used would …

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## [Perfomance impact of debug nodes](https://discourse.nodered.org/t/perfomance-impact-of-debug-nodes/8651)

<div class="topic-metadata">

**Author:** [@uma](https://discourse.nodered.org/u/uma)\
**Replies:** 0\
**Last updated:** [6 March 2019 00:08 UTC](https://discourse.nodered.org/t/perfomance-impact-of-debug-nodes/8651 "2019-03-06T00:08:46Z")

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Hi I have a whole bunch of debug nodes in my flow. All of them are turned on currently. My question is: Is there an impact on runtime performance if the debug nodes are left on if the flow is not being displayed in any…

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