# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=721

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

**Page:** 722

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## [Port in use - keeping track of 188x ports opened](https://discourse.nodered.org/t/port-in-use-keeping-track-of-188x-ports-opened/29363)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 6\
**Last updated:** [4 July 2020 16:47 UTC](https://discourse.nodered.org/t/port-in-use-keeping-track-of-188x-ports-opened/29363 "2020-07-04T16:47:17Z")

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Just a warning for others to remind/alert that MQTT brokers commonly use port addresses starting with 188x and if you add in extra node-red alternate testing installs - its easy to come into conflict with them - like wh…

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## [Sort out node installed globally](https://discourse.nodered.org/t/sort-out-node-installed-globally/17507)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 22\
**Last updated:** [4 July 2020 16:34 UTC](https://discourse.nodered.org/t/sort-out-node-installed-globally/17507 "2020-07-04T16:34:03Z")

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Having recently installed an instance of @TotallyInformation alternate install on my Win 10 machine, I noticed that the Blocky node (node-red-contrib-blockly) came with it. Julian has pointed out to me that he doesn't s…

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## [Example flow for 'comment'](https://discourse.nodered.org/t/example-flow-for-comment/29507)

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**Author:** [@davej](https://discourse.nodered.org/u/davej)\
**Replies:** 0\
**Last updated:** [4 July 2020 16:29 UTC](https://discourse.nodered.org/t/example-flow-for-comment/29507 "2020-07-04T16:29:59Z")

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Following on from my previous post,here is a sample flow that I have put together that comprises of a couple of text boxes and a button with a bit of validation. Be gentle with me! As I am still getting to grips with N…

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## [Anyone here for Hire?](https://discourse.nodered.org/t/anyone-here-for-hire/29506)

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**Author:** [@eac1218](https://discourse.nodered.org/u/eac1218)\
**Replies:** 0\
**Last updated:** [4 July 2020 16:28 UTC](https://discourse.nodered.org/t/anyone-here-for-hire/29506 "2020-07-04T16:28:37Z")

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I am developing a solution for our company and would like to have the assistance of a developer that can make quick work of my framework. So if anyone here is available for hire please send me an email. Looking to hire…

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## [Nodes keep being reactivated although not within time range](https://discourse.nodered.org/t/nodes-keep-being-reactivated-although-not-within-time-range/29193)

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**Author:** [@Totestbeta](https://discourse.nodered.org/u/Totestbeta)\
**Replies:** 6\
**Last updated:** [4 July 2020 15:13 UTC](https://discourse.nodered.org/t/nodes-keep-being-reactivated-although-not-within-time-range/29193 "2020-07-04T15:13:06Z")

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As a new user of node red I am experiencing a strange problem. I use the readout of a sunlux meter to trigger my hue lights to be switched on between 1700 and 2345 hours, when the lux meter has a readout when it's below…

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## [Global variable in uibuilder](https://discourse.nodered.org/t/global-variable-in-uibuilder/29432)

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**Author:** [@YLM-UJM](https://discourse.nodered.org/u/YLM-UJM)\
**Replies:** 4\
**Last updated:** [4 July 2020 12:44 UTC](https://discourse.nodered.org/t/global-variable-in-uibuilder/29432 "2020-07-04T12:44:22Z")

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I am using the uibuilder tool which is very useful. inside the .js file, I initialize a variable in the data object. var app1 = new Vue({ el: '#app', data: { startMsg : 'Vue has started, waiting for messages', …

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## [How to cross-compile Node-RED for an embedded system](https://discourse.nodered.org/t/how-to-cross-compile-node-red-for-an-embedded-system/29296)

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**Author:** [@kasul](https://discourse.nodered.org/u/kasul)\
**Replies:** 5\
**Last updated:** [4 July 2020 12:20 UTC](https://discourse.nodered.org/t/how-to-cross-compile-node-red-for-an-embedded-system/29296 "2020-07-04T12:20:19Z")

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Hi everyone, I have a question about cross-compiling Node-Red for an embedded device. The device is an SBC with a Touchpanel, Cortex A9 (i.MX6) processor and a Linux yocto custom build by the manufacturer. Now I want …

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## [Deploy Watson AI (with option response function) in Node-RED](https://discourse.nodered.org/t/deploy-watson-ai-with-option-response-function-in-node-red/29424)

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**Author:** [@abhayssaini](https://discourse.nodered.org/u/abhayssaini)\
**Replies:** 7\
**Last updated:** [4 July 2020 11:58 UTC](https://discourse.nodered.org/t/deploy-watson-ai-with-option-response-function-in-node-red/29424 "2020-07-04T11:58:01Z")

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Hello, I'm using watson assistant were i have created a skill and in that i have used "option response". so i am deploying it in node-RED. The problem is that in UI when watson interact with user upto when its not ca…

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## [How to add or retrieve and display a list of items in dashboard from a cloud database](https://discourse.nodered.org/t/how-to-add-or-retrieve-and-display-a-list-of-items-in-dashboard-from-a-cloud-database/29495)

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**Author:** [@ani15](https://discourse.nodered.org/u/ani15)\
**Replies:** 0\
**Last updated:** [4 July 2020 10:58 UTC](https://discourse.nodered.org/t/how-to-add-or-retrieve-and-display-a-list-of-items-in-dashboard-from-a-cloud-database/29495 "2020-07-04T10:58:54Z")

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how to add or retrieve and display a list of items ( say items and its corresponding price ) in dashboard from a cloud database such as IBM cloudant ...pls help Thanks in advance for any help provided.....

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## [Node red wont deploy](https://discourse.nodered.org/t/node-red-wont-deploy/29493)

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**Author:** [@Chaos](https://discourse.nodered.org/u/Chaos)\
**Replies:** 1\
**Last updated:** [4 July 2020 10:48 UTC](https://discourse.nodered.org/t/node-red-wont-deploy/29493 "2020-07-04T10:48:43Z")

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Hi I imported my sony bravia flow from one Node red machine to another and deployed it on the new machine before all the nodes required for the flow were installed on it, as usual it complained so i used pallet manager …

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## [How switch to home tab only if the login details are correct](https://discourse.nodered.org/t/how-switch-to-home-tab-only-if-the-login-details-are-correct/29494)

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**Author:** [@ani15](https://discourse.nodered.org/u/ani15)\
**Replies:** 0\
**Last updated:** [4 July 2020 10:34 UTC](https://discourse.nodered.org/t/how-switch-to-home-tab-only-if-the-login-details-are-correct/29494 "2020-07-04T10:34:23Z")

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i created a login tab which will check if the credentials entered are correct or not .so I want to switch on to home tab only if the login details are correct .....i dont know how to achieve the same...pls help...

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## [Need help with a one shot trigger](https://discourse.nodered.org/t/need-help-with-a-one-shot-trigger/29488)

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**Author:** [@Rog\_Red](https://discourse.nodered.org/u/Rog_Red)\
**Replies:** 2\
**Last updated:** [4 July 2020 09:34 UTC](https://discourse.nodered.org/t/need-help-with-a-one-shot-trigger/29488 "2020-07-04T09:34:04Z")

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Hi There, I'm hoping for some help.. I need a set a GPIO pin high for 1 second, then low, triggered by a payload "1". Subsequent payload "1"s should have no effect until a payload "0" is received which then enables th…

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## [Passing msg.ip in a loop](https://discourse.nodered.org/t/passing-msg-ip-in-a-loop/29481)

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**Author:** [@blob](https://discourse.nodered.org/u/blob)\
**Replies:** 4\
**Last updated:** [4 July 2020 08:32 UTC](https://discourse.nodered.org/t/passing-msg-ip-in-a-loop/29481 "2020-07-04T08:32:26Z")

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Hi, I'm a node red newbie. I have a flow which requires sending some commands to some sensors having different ip addresses. I'm sending these commands to the sensors using udp out node. As these sensors are large in nu…

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## [Convertir una dato Word a Float](https://discourse.nodered.org/t/convertir-una-dato-word-a-float/29479)

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**Author:** [@Christian24](https://discourse.nodered.org/u/Christian24)\
**Replies:** 1\
**Last updated:** [4 July 2020 07:54 UTC](https://discourse.nodered.org/t/convertir-una-dato-word-a-float/29479 "2020-07-04T07:54:27Z")

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Hola buenas noches Mi nombre e Christian, soy novato en Node-Red y necesito convertir una Palabra Word a Float, o leer con Modbus Read una Variable Float, para visualizar los decimales en Node-Red. De ante mano muchas …

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## [Splitting and Assigning String Data](https://discourse.nodered.org/t/splitting-and-assigning-string-data/29426)

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**Author:** [@shaunchester](https://discourse.nodered.org/u/shaunchester)\
**Replies:** 6\
**Last updated:** [4 July 2020 05:07 UTC](https://discourse.nodered.org/t/splitting-and-assigning-string-data/29426 "2020-07-04T05:07:50Z")

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Hi, I am using the Serial Node to Read Data from a serial USB device, it returns the following string: z+2.524+2.280+2.109+0.000 Can anyone point me int he right direction of how to: Remove the 'z' and then split eac…

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## [Set Switch: Easy Question](https://discourse.nodered.org/t/set-switch-easy-question/29393)

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**Author:** [@get-command](https://discourse.nodered.org/u/get-command)\
**Replies:** 26\
**Last updated:** [3 July 2020 22:15 UTC](https://discourse.nodered.org/t/set-switch-easy-question/29393 "2020-07-03T22:15:24Z")

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but not for me :slight\_smile: Hi there, i would like a build a Switch Node with the Payload Data from mqtt input. If payload Data AAA4178400C8XXXXXX then Switch output 1. Thanks for help!

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## [Errors on Installing nodes](https://discourse.nodered.org/t/errors-on-installing-nodes/29449)

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**Author:** [@htrendafilov](https://discourse.nodered.org/u/htrendafilov)\
**Replies:** 6\
**Last updated:** [3 July 2020 22:08 UTC](https://discourse.nodered.org/t/errors-on-installing-nodes/29449 "2020-07-03T22:08:58Z")

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Hi! I just installed a new image to my raspberry PI4 and made some updates. Now I have Node-Red V1.1.0 Node.js V14.5.0 npm V6.14.5 I installed some new nodes from Palette Manager, but I see many fails during instal…

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## [Node-RED Integration with SAP](https://discourse.nodered.org/t/node-red-integration-with-sap/29412)

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**Author:** [@manikandansit](https://discourse.nodered.org/u/manikandansit)\
**Replies:** 1\
**Last updated:** [3 July 2020 21:25 UTC](https://discourse.nodered.org/t/node-red-integration-with-sap/29412 "2020-07-03T21:25:03Z")

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Hello, I am an SAP Consultant (Integration),i wanted to extract data from Node-RED to SAP system through SAP PI/PO. I would like to know what are the connectivity options are available with Node RED(cloud) for data extra…

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## [Rain sensor count](https://discourse.nodered.org/t/rain-sensor-count/29463)

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**Author:** [@Vlak](https://discourse.nodered.org/u/Vlak)\
**Replies:** 1\
**Last updated:** [3 July 2020 20:24 UTC](https://discourse.nodered.org/t/rain-sensor-count/29463 "2020-07-03T20:24:02Z")

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Dear people, I am looking for a way to make a day count of my rain sensor. The rain sensor adds all values ​​together. I now want to create a flow in which this value is reset. With node red I control my sprinkler system…

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## [HTTP Request response changed 0.20.2 upgrade](https://discourse.nodered.org/t/http-request-response-changed-0-20-2-upgrade/9269)

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**Author:** [@nosaj66au](https://discourse.nodered.org/u/nosaj66au)\
**Replies:** 8\
**Last updated:** [3 July 2020 19:58 UTC](https://discourse.nodered.org/t/http-request-response-changed-0-20-2-upgrade/9269 "2020-07-03T19:58:35Z")

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Hi All, I have just gone from NR 0.18.2 to 0.20.2 on my Home automation test bed running on a RPI. The http link to my Daikin ducted AC stopped working. Really simple \> Inject to HTTP Request and debug node. This has …

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## [PLEASE help - UI Form Data to SQLite db](https://discourse.nodered.org/t/please-help-ui-form-data-to-sqlite-db/29454)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 10\
**Last updated:** [3 July 2020 17:56 UTC](https://discourse.nodered.org/t/please-help-ui-form-data-to-sqlite-db/29454 "2020-07-03T17:56:23Z")

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HI, All you NR superstars!! I really need urgent help on a seems to be something simple that I of some reason just can't get to work after 3 days of trying, and a LOT of Reading !!! I attempting to pass data from a UI …

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## [HTML is NOT parsing DIV tags consistently](https://discourse.nodered.org/t/html-is-not-parsing-div-tags-consistently/29417)

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**Author:** [@nedstrader](https://discourse.nodered.org/u/nedstrader)\
**Replies:** 4\
**Last updated:** [3 July 2020 15:39 UTC](https://discourse.nodered.org/t/html-is-not-parsing-div-tags-consistently/29417 "2020-07-03T15:39:33Z")

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Hello, I have a flow that scrapes the U.S. Securities website page: "sec.report" This web page contains a Company List table that contains the following columns: Company Name. …

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## [Telegram metod sendinvoce](https://discourse.nodered.org/t/telegram-metod-sendinvoce/29443)

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**Author:** [@korvova](https://discourse.nodered.org/u/korvova)\
**Replies:** 0\
**Last updated:** [3 July 2020 13:17 UTC](https://discourse.nodered.org/t/telegram-metod-sendinvoce/29443 "2020-07-03T13:17:11Z")

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i can Create Invoice for bot https://core.telegram.org/bots/payments but can't start function sendInvoice. Please help my function : bot.send\_invoice( chat\_id=544384732, title='Пополнение счета', description='…

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## [How do upgrade node from palette that uses git repo?](https://discourse.nodered.org/t/how-do-upgrade-node-from-palette-that-uses-git-repo/29422)

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**Author:** [@mannharleen](https://discourse.nodered.org/u/mannharleen)\
**Replies:** 4\
**Last updated:** [3 July 2020 12:44 UTC](https://discourse.nodered.org/t/how-do-upgrade-node-from-palette-that-uses-git-repo/29422 "2020-07-03T12:44:37Z")

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With v1.1.0, we can now install nodes that sit on a git repo using catalog.json. ref: https://github.com/node-red/designs/blob/master/designs/node-installation/README.md The installation works perfectly. However, I can'…

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## [Extract data from String](https://discourse.nodered.org/t/extract-data-from-string/29430)

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**Author:** [@WImpie](https://discourse.nodered.org/u/WImpie)\
**Replies:** 10\
**Last updated:** [3 July 2020 12:24 UTC](https://discourse.nodered.org/t/extract-data-from-string/29430 "2020-07-03T12:24:14Z")

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Hi All Can someone please help me to write a function to do the following. Whenever there is a "confirmed" in the following string it needs to send out a msg.payload with that ID number that corresponds with the confir…

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## [Reverse bcrypt node](https://discourse.nodered.org/t/reverse-bcrypt-node/29438)

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**Author:** [@josekavunkal](https://discourse.nodered.org/u/josekavunkal)\
**Replies:** 2\
**Last updated:** [3 July 2020 11:23 UTC](https://discourse.nodered.org/t/reverse-bcrypt-node/29438 "2020-07-03T11:23:49Z")

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I am using bcrypt node to generate password . Is there a way to reverse the hashing and get the text password ?

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## [Dashboard Dropdown button - how to extract options in the downstream](https://discourse.nodered.org/t/dashboard-dropdown-button-how-to-extract-options-in-the-downstream/29427)

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**Author:** [@shanajira](https://discourse.nodered.org/u/shanajira)\
**Replies:** 1\
**Last updated:** [3 July 2020 09:55 UTC](https://discourse.nodered.org/t/dashboard-dropdown-button-how-to-extract-options-in-the-downstream/29427 "2020-07-03T09:55:06Z")

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hello Newbie here .I have a simple dashboard based flow. It contains a dropdown node, a button, and a python module I do some back ground work and an output debug node. My problem is for an injection node (non-dashbo…

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## [Zwave-in ,raspberry pi](https://discourse.nodered.org/t/zwave-in-raspberry-pi/29374)

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**Author:** [@Ghada-Ch](https://discourse.nodered.org/u/Ghada-Ch)\
**Replies:** 0\
**Last updated:** [2 July 2020 11:26 UTC](https://discourse.nodered.org/t/zwave-in-raspberry-pi/29374 "2020-07-02T11:26:01Z")

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I am trying to collect data from zwave sensor. I am using the controller z-stick . the zwave-in is connected . But there is no data from the sensor.

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## [Python in Node Red](https://discourse.nodered.org/t/python-in-node-red/29380)

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**Author:** [@WImpie](https://discourse.nodered.org/u/WImpie)\
**Replies:** 10\
**Last updated:** [3 July 2020 09:05 UTC](https://discourse.nodered.org/t/python-in-node-red/29380 "2020-07-03T09:05:08Z")

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Hi All So i want to do some python script inside node red to communicate with a S7 PLC. From Odoo btw. I have installed the python function node but here are the following error: I have a python script which works…

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## [How to create a json using loop](https://discourse.nodered.org/t/how-to-create-a-json-using-loop/29390)

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**Author:** [@apex](https://discourse.nodered.org/u/apex)\
**Replies:** 6\
**Last updated:** [3 July 2020 08:26 UTC](https://discourse.nodered.org/t/how-to-create-a-json-using-loop/29390 "2020-07-03T08:26:08Z")

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hi i am new to js, i have an json loop like: var sammy = { "device": \[{ "imsi" : msg.payload.data.devices\[0\].imsi, "rg\_id" : msg.payload.data.devices\[0\].rg\_id, "id" : msg.payload.data…

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