# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=942

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

**Page:** 943

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## [How can I get ip from udp?](https://discourse.nodered.org/t/how-can-i-get-ip-from-udp/3922)

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**Author:** [@empirejrz](https://discourse.nodered.org/u/empirejrz)\
**Replies:** 2\
**Last updated:** [12 October 2018 18:29 UTC](https://discourse.nodered.org/t/how-can-i-get-ip-from-udp/3922 "2018-10-12T18:29:55Z")

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Hi All; I have a message from UDP protocol. I would like to get ip from UDP for message of arrival. How should I do? Could you please advise me about tactic or function for use this my issue? Thank you, Best regards.

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## [Install Node Red on WebSphere](https://discourse.nodered.org/t/install-node-red-on-websphere/3927)

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**Author:** [@BenjaminJanes](https://discourse.nodered.org/u/BenjaminJanes)\
**Replies:** 4\
**Last updated:** [12 October 2018 14:53 UTC](https://discourse.nodered.org/t/install-node-red-on-websphere/3927 "2018-10-12T14:53:56Z")

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HI, We have an existing solution running on WebSphere ND. We want to have applications generated by Node Red running on this Application Server. How would we go about this? Install Node-Red on WebSphere Install Node-R…

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## [HTTPS POST question](https://discourse.nodered.org/t/https-post-question/3931)

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**Author:** [@wormscoffer](https://discourse.nodered.org/u/wormscoffer)\
**Replies:** 4\
**Last updated:** [12 October 2018 14:30 UTC](https://discourse.nodered.org/t/https-post-question/3931 "2018-10-12T14:30:46Z")

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I suspect this may have been answered in other posts but I can't really follow so apologies for asking again in the hope someone can give me a nice simple answer. My mobile phone company will allow me to send an SMS to …

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## [UI Builder form](https://discourse.nodered.org/t/ui-builder-form/3829)

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**Author:** [@monterrozak1](https://discourse.nodered.org/u/monterrozak1)\
**Replies:** 6\
**Last updated:** [12 October 2018 12:51 UTC](https://discourse.nodered.org/t/ui-builder-form/3829 "2018-10-12T12:51:40Z")

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Hi. I'm new with Node-Red and I'm trying to make a UI using the uibuilder node. The idea is the user gives some parameters, which should be processed in the flow afterwards and then the user could get an answer calculate…

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## [IBM Cloud (Bluemix) node-red stability](https://discourse.nodered.org/t/ibm-cloud-bluemix-node-red-stability/3860)

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**Author:** [@j0hncc](https://discourse.nodered.org/u/j0hncc)\
**Replies:** 3\
**Last updated:** [12 October 2018 12:46 UTC](https://discourse.nodered.org/t/ibm-cloud-bluemix-node-red-stability/3860 "2018-10-12T12:46:14Z")

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I am a hobbyist using a free IBM Cloud instance and Node red for my application successfully for the last month or so. But only in the last few days it has seemed to go up and down several times per day (with no changes…

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## [NR not show flow](https://discourse.nodered.org/t/nr-not-show-flow/3850)

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**Author:** [@dedynobre](https://discourse.nodered.org/u/dedynobre)\
**Replies:** 23\
**Last updated:** [12 October 2018 11:09 UTC](https://discourse.nodered.org/t/nr-not-show-flow/3850 "2018-10-12T11:09:29Z")

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Hi! My system, after restart, not show flow. The dashboart is show normal. Change the use port but the error show: Welcome to Node-RED 10 Oct 06:36:26 - \[info\] Node-RED version: v0.19.1 10 Oct 06:36:26 - \[info\] Node…

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## [Node-red-contrib-later - maintenance feedback wanted](https://discourse.nodered.org/t/node-red-contrib-later-maintenance-feedback-wanted/3878)

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**Author:** [@d-o](https://discourse.nodered.org/u/d-o)\
**Replies:** 1\
**Last updated:** [12 October 2018 10:48 UTC](https://discourse.nodered.org/t/node-red-contrib-later-maintenance-feedback-wanted/3878 "2018-10-12T10:48:56Z")

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Hi everyone, I have been a bit slack on maintaining this node as it has been doing what I need but I noticed some outstanding issues I have some time to sort... Resetting/cancelling schedules As it stands until a sc…

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## [How do I add support for new protocols in Tellstick Duo node?](https://discourse.nodered.org/t/how-do-i-add-support-for-new-protocols-in-tellstick-duo-node/3917)

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**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\
**Replies:** 5\
**Last updated:** [12 October 2018 09:46 UTC](https://discourse.nodered.org/t/how-do-i-add-support-for-new-protocols-in-tellstick-duo-node/3917 "2018-10-12T09:46:45Z")

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Embarassing, yeah. I know I have seen it somewhere, but I'm totally stuck right now. My Alzheimer's light is killing me... I need to add support for my RollerTrol blinds, and I can't for the life of me figure out how! Ca…

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## [Importing flow from website](https://discourse.nodered.org/t/importing-flow-from-website/3895)

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**Author:** [@mustafa](https://discourse.nodered.org/u/mustafa)\
**Replies:** 7\
**Last updated:** [11 October 2018 19:56 UTC](https://discourse.nodered.org/t/importing-flow-from-website/3895 "2018-10-11T19:56:25Z")

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Hi i want to import the flow in link below but the import not show as active in node red dashboard please advise

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## [Combine multiple payloads from Conversation Workspace Manager](https://discourse.nodered.org/t/combine-multiple-payloads-from-conversation-workspace-manager/3881)

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**Author:** [@dymo](https://discourse.nodered.org/u/dymo)\
**Replies:** 1\
**Last updated:** [11 October 2018 16:37 UTC](https://discourse.nodered.org/t/combine-multiple-payloads-from-conversation-workspace-manager/3881 "2018-10-11T16:37:11Z")

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Hi! Im experimenting a bit with Watson Conversation and Node-Red. What Im trying to do at the moment is to display a list from Intents, Entities and dialog nodes on a simple html site. I can display the payloads separa…

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## [WorldMap Issue - JSON-DB](https://discourse.nodered.org/t/worldmap-issue-json-db/3889)

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**Author:** [@M0CRT](https://discourse.nodered.org/u/M0CRT)\
**Replies:** 3\
**Last updated:** [11 October 2018 14:58 UTC](https://discourse.nodered.org/t/worldmap-issue-json-db/3889 "2018-10-11T14:58:06Z")

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Using the postcode-lookup node to lookup up lat/long for pinning to the WorldMap. This works very well when connecting the postcode node directly to it. However, with the amount of postcode lookups being pushed and the…

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## [Foscam databuffer to file](https://discourse.nodered.org/t/foscam-databuffer-to-file/3893)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 4\
**Last updated:** [11 October 2018 14:46 UTC](https://discourse.nodered.org/t/foscam-databuffer-to-file/3893 "2018-10-11T14:46:52Z")

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I am not the first and i gues not the last one fighting with this :wink: With a lot of help from google i am able to get an output from the snapPicture function This gives me a buffer full of data. But how can i get t…

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## [Node installation from Palette is not working](https://discourse.nodered.org/t/node-installation-from-palette-is-not-working/3891)

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**Author:** [@rskhatri](https://discourse.nodered.org/u/rskhatri)\
**Replies:** 5\
**Last updated:** [11 October 2018 13:51 UTC](https://discourse.nodered.org/t/node-installation-from-palette-is-not-working/3891 "2018-10-11T13:51:07Z")

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Hi All, I am trying to install nodes from manage palette option. But, it is not able to install a node. If I use same command from cmd line than it works perfectly. Thanks, Rohit

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## [Formatted flow file, by default?](https://discourse.nodered.org/t/formatted-flow-file-by-default/3871)

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**Author:** [@alpintrekker](https://discourse.nodered.org/u/alpintrekker)\
**Replies:** 5\
**Last updated:** [11 October 2018 13:31 UTC](https://discourse.nodered.org/t/formatted-flow-file-by-default/3871 "2018-10-11T13:31:20Z")

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Hi, Is there an option to force Node-RED to save the flow file json formatted? While the new projects feature great, the built in commit browser great, looking at differences the git diff way or at any hosted git serv…

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## [Having a hard time trying to re-install NR](https://discourse.nodered.org/t/having-a-hard-time-trying-to-re-install-nr/3826)

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**Author:** [@vazquezjm](https://discourse.nodered.org/u/vazquezjm)\
**Replies:** 8\
**Last updated:** [11 October 2018 13:02 UTC](https://discourse.nodered.org/t/having-a-hard-time-trying-to-re-install-nr/3826 "2018-10-11T13:02:02Z")

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Hi all. I'm experiencing a weird behavior trying to re-install NR on my Raspbery Pi 3 running Raspbian 9.4 (Stretch). After a power fault (mains), RPi booted and NR was not working so I tried to fix it manually but me…

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## ["node-red-contrib" means as custom node or library?](https://discourse.nodered.org/t/node-red-contrib-means-as-custom-node-or-library/3882)

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**Author:** [@rajbir123](https://discourse.nodered.org/u/rajbir123)\
**Replies:** 1\
**Last updated:** [11 October 2018 09:44 UTC](https://discourse.nodered.org/t/node-red-contrib-means-as-custom-node-or-library/3882 "2018-10-11T09:44:50Z")

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"node-red-contrib" means as custom node or library. As i can see in the manage palette there is more than thousands of npm library. so what i see there some library name starting with "node-red-contrib..." and some of th…

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## [Nodes update problems](https://discourse.nodered.org/t/nodes-update-problems/3847)

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**Author:** [@echtelerp](https://discourse.nodered.org/u/echtelerp)\
**Replies:** 5\
**Last updated:** [11 October 2018 08:28 UTC](https://discourse.nodered.org/t/nodes-update-problems/3847 "2018-10-11T08:28:31Z")

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Hi together, Raspberry pi2 nodejs version: 8.12.0 node-red version 19.4 i have problems updating my nodes... i try that via the mange palette on the ui, here is the log output: 10 Oct 10:52:34 - \[info\] Server now…

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## [How to search an array?](https://discourse.nodered.org/t/how-to-search-an-array/3832)

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**Author:** [@Rednecknerd](https://discourse.nodered.org/u/Rednecknerd)\
**Replies:** 12\
**Last updated:** [11 October 2018 08:01 UTC](https://discourse.nodered.org/t/how-to-search-an-array/3832 "2018-10-11T08:01:33Z")

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I have an array of data. The position I need has been anywhere from position 6 to 11 so far. It always starts with an "A". It is METAR data. I have converted the string to an array and everything works fine as long a…

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## [By pass login prompt for specific IP or in LAN](https://discourse.nodered.org/t/by-pass-login-prompt-for-specific-ip-or-in-lan/3551)

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**Author:** [@caobach42](https://discourse.nodered.org/u/caobach42)\
**Replies:** 4\
**Last updated:** [11 October 2018 02:28 UTC](https://discourse.nodered.org/t/by-pass-login-prompt-for-specific-ip-or-in-lan/3551 "2018-10-11T02:28:22Z")

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Hi, I set password for both editor and UI in Nodered mainly because sometimes I remotely control Nodered from internet, the problem is it keeps asking password every time (i heard that issue somewhere), so i think is it…

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## [Iobroker-in/Iobroker-get read the msg.topic](https://discourse.nodered.org/t/iobroker-in-iobroker-get-read-the-msg-topic/3867)

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**Author:** [@cwbusacker](https://discourse.nodered.org/u/cwbusacker)\
**Replies:** 2\
**Last updated:** [10 October 2018 21:09 UTC](https://discourse.nodered.org/t/iobroker-in-iobroker-get-read-the-msg-topic/3867 "2018-10-10T21:09:53Z")

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Hello, I am working for a company that uses node-red to connect to iobroker and modbus to access hardware booleans and registers. Here's what my flow looks like: timestamp/Iobroker GET/Function/CSV/SaveFile ..........…

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## [How can i delete all data stored like flow.set("xy",value)](https://discourse.nodered.org/t/how-can-i-delete-all-data-stored-like-flow-set-xy-value/3864)

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**Author:** [@MarkusR](https://discourse.nodered.org/u/MarkusR)\
**Replies:** 5\
**Last updated:** [10 October 2018 21:09 UTC](https://discourse.nodered.org/t/how-can-i-delete-all-data-stored-like-flow-set-xy-value/3864 "2018-10-10T21:09:39Z")

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hello, i collect data by mqtt topic. so i count something in flow.set(msg.topic,flow.get(msg.topic)+1) this data i push into a chart. but how can i remove all in flow. ? i will reset the data stored in flow. each da…

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## [How to "catch" node.warn(msg)](https://discourse.nodered.org/t/how-to-catch-node-warn-msg/3738)

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**Author:** [@EZS-JD](https://discourse.nodered.org/u/EZS-JD)\
**Replies:** 6\
**Last updated:** [10 October 2018 13:53 UTC](https://discourse.nodered.org/t/how-to-catch-node-warn-msg/3738 "2018-10-10T13:53:13Z")

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I love using the "catch" node to catch all errors from a flow and then pipe them to any notification system like Telegram, Email, etc. Is there anything similar that works with node.warn()? How could I catch .warn() mes…

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## [Access REST API to retrieve a JSON Web Token (JWT)](https://discourse.nodered.org/t/access-rest-api-to-retrieve-a-json-web-token-jwt/3840)

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**Author:** [@jpummill](https://discourse.nodered.org/u/jpummill)\
**Replies:** 1\
**Last updated:** [10 October 2018 06:09 UTC](https://discourse.nodered.org/t/access-rest-api-to-retrieve-a-json-web-token-jwt/3840 "2018-10-10T06:09:31Z")

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Hi Everyone, I am new to Node-RED and not sure how to proceed. I need to access a REST API to retrieve a JSON Web Token (JWT) I can do this with the following curl command: curl -X POST https://servername:1925/myapp/l…

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## [Node-red beginner tutorials?](https://discourse.nodered.org/t/node-red-beginner-tutorials/3837)

<div class="topic-metadata">

**Author:** [@cwbusacker](https://discourse.nodered.org/u/cwbusacker)\
**Replies:** 1\
**Last updated:** [9 October 2018 22:10 UTC](https://discourse.nodered.org/t/node-red-beginner-tutorials/3837 "2018-10-09T22:10:34Z")

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Hello, I'm very new to node-red. Are there any good node-red tutorials/walkthroughs for beginners? Thanks, CB

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## [How can I find out which node generates MaxListenersExceededWarning](https://discourse.nodered.org/t/how-can-i-find-out-which-node-generates-maxlistenersexceededwarning/3815)

<div class="topic-metadata">

**Author:** [@ludi](https://discourse.nodered.org/u/ludi)\
**Replies:** 5\
**Last updated:** [9 October 2018 20:32 UTC](https://discourse.nodered.org/t/how-can-i-find-out-which-node-generates-maxlistenersexceededwarning/3815 "2018-10-09T20:32:29Z")

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Hi, after a couple of time (between hours and days) I see the following message in the syslog: node:346 MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 exit listeners added. Use emitter.setM…

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## [\[Noob\] Http post to Rpinotify](https://discourse.nodered.org/t/noob-http-post-to-rpinotify/1234)

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**Author:** [@EnricoSx](https://discourse.nodered.org/u/EnricoSx)\
**Replies:** 13\
**Last updated:** [9 October 2018 20:26 UTC](https://discourse.nodered.org/t/noob-http-post-to-rpinotify/1234 "2018-10-09T20:26:18Z")

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Hello, sorry for my noob question, i want use https://rpinotify.it/invio-di-testo.html but i can’t send post message : (i edit http: for new user limit post) my flow: inject: with string text=“my message” http req…

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## [Allocating one JSON to different topics](https://discourse.nodered.org/t/allocating-one-json-to-different-topics/3544)

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**Author:** [@themanfrommoon](https://discourse.nodered.org/u/themanfrommoon)\
**Replies:** 16\
**Last updated:** [9 October 2018 20:06 UTC](https://discourse.nodered.org/t/allocating-one-json-to-different-topics/3544 "2018-10-09T20:06:49Z")

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Hello, I have a JSON published from a data logger and I want to publish the data to MQTT. Therefore I need to allocate the JSON data to different topics. I have different types of JSON and for another type I have foun…

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## [Active development for Discord nodes?](https://discourse.nodered.org/t/active-development-for-discord-nodes/3778)

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**Author:** [@ripcurl](https://discourse.nodered.org/u/ripcurl)\
**Replies:** 5\
**Last updated:** [9 October 2018 09:35 UTC](https://discourse.nodered.org/t/active-development-for-discord-nodes/3778 "2018-10-09T09:35:42Z")

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Hi, I was just introduced to the amazing world of node-red and I'm blown away at the potential that lies here. I've been trying quite hard to find integration with Discord but so far I've only found node-red-contrib-di…

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## [Having connection issues with ioT2020 and node red](https://discourse.nodered.org/t/having-connection-issues-with-iot2020-and-node-red/3764)

<div class="topic-metadata">

**Author:** [@Pac8](https://discourse.nodered.org/u/Pac8)\
**Replies:** 3\
**Last updated:** [9 October 2018 06:06 UTC](https://discourse.nodered.org/t/having-connection-issues-with-iot2020-and-node-red/3764 "2018-10-09T06:06:13Z")

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I have created my first project, which is a work base project utilizing the Siemens ioT 2020, where i am running a simple flow with a signal from my ioT 2020 to print a number in the debug screen. I have my ioT running o…

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## [Can't read GPIO without first running some python](https://discourse.nodered.org/t/cant-read-gpio-without-first-running-some-python/3806)

<div class="topic-metadata">

**Author:** [@Abstract2Actual](https://discourse.nodered.org/u/Abstract2Actual)\
**Replies:** 1\
**Last updated:** [9 October 2018 04:05 UTC](https://discourse.nodered.org/t/cant-read-gpio-without-first-running-some-python/3806 "2018-10-09T04:05:40Z")

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I created a simple flow that checks to see if a switch is depressed and deployed it, but it didn't work. Thinking that my GPIO was fried, i ran a little python script to read the same GPIO pin, The python script worked…

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