# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=415

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

**Page:** 416

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## [Need help to output text for the TSS engine in Rhasspy](https://discourse.nodered.org/t/need-help-to-output-text-for-the-tss-engine-in-rhasspy/58909)

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**Author:** [@Solid](https://discourse.nodered.org/u/Solid)\
**Replies:** 0\
**Last updated:** [24 February 2022 08:21 UTC](https://discourse.nodered.org/t/need-help-to-output-text-for-the-tss-engine-in-rhasspy/58909 "2022-02-24T08:21:55Z")

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I'm working Node-red with Rhasspy and I need to send some text over to the MQTT broker of Rhasspy so the TextToSpeech tool reads what's inside the node function. I know also there is another way with posting in the text…

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## [Node-Red installation fail Windows Server 2019 via RDP](https://discourse.nodered.org/t/node-red-installation-fail-windows-server-2019-via-rdp/58899)

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**Author:** [@BrallanH2](https://discourse.nodered.org/u/BrallanH2)\
**Replies:** 3\
**Last updated:** [24 February 2022 15:29 UTC](https://discourse.nodered.org/t/node-red-installation-fail-windows-server-2019-via-rdp/58899 "2022-02-24T15:29:01Z")

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I installed Node.js using the installer: node-v16.14.0-x64 I am using an RDP session to access this computer on a customer's network. I have administrator privileges. I don't think the computer has internet access. I …

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## [Reposting old Question and Documentation Request](https://discourse.nodered.org/t/reposting-old-question-and-documentation-request/56908)

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**Author:** [@Tinku](https://discourse.nodered.org/u/Tinku)\
**Replies:** 3\
**Last updated:** [24 February 2022 15:15 UTC](https://discourse.nodered.org/t/reposting-old-question-and-documentation-request/56908 "2022-02-24T15:15:25Z")

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Im Repostiong the question: RFID with Balluff from @AaronV where do I get documentation that how the TCP nodes work? Many thanks in advance :slight\_smile:

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## [Node-red-contrib-turf: simplify, tranformRotate function =\> options object returns error 'options is invalid'](https://discourse.nodered.org/t/node-red-contrib-turf-simplify-tranformrotate-function-options-object-returns-error-options-is-invalid/58934)

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**Author:** [@Razio](https://discourse.nodered.org/u/Razio)\
**Replies:** 0\
**Last updated:** [24 February 2022 15:00 UTC](https://discourse.nodered.org/t/node-red-contrib-turf-simplify-tranformrotate-function-options-object-returns-error-options-is-invalid/58934 "2022-02-24T15:00:26Z")

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Hi, Once again I got stuck :roll\_eyes: My initial try is to simplify a lineString with the turf-node. For some reason it won't accept my options I am giving in the payload array. It returns the error 'options is inval…

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## [typedInput - Missing after choosing other type](https://discourse.nodered.org/t/typedinput-missing-after-choosing-other-type/58890)

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**Author:** [@jayson](https://discourse.nodered.org/u/jayson)\
**Replies:** 3\
**Last updated:** [24 February 2022 14:48 UTC](https://discourse.nodered.org/t/typedinput-missing-after-choosing-other-type/58890 "2022-02-24T14:48:08Z")

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I added a node with input with typedInput. Initially, the type dropdown is showing but upon changing the type, it will be gone in the UI.

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## [Using Context variables](https://discourse.nodered.org/t/using-context-variables/58756)

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**Author:** [@rayank97](https://discourse.nodered.org/u/rayank97)\
**Replies:** 13\
**Last updated:** [24 February 2022 13:09 UTC](https://discourse.nodered.org/t/using-context-variables/58756 "2022-02-24T13:09:58Z")

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Hello everyone, I am new to Node-Red and am trying out a project with the EmotivBCI toolbox. I am trying to get a servo running using the Arduino nodes (running Firmata). The EmotivBCI node that I am using basically ret…

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## [How to get last inserted record in table from code - sqlite](https://discourse.nodered.org/t/how-to-get-last-inserted-record-in-table-from-code-sqlite/58816)

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**Author:** [@dm2jokes](https://discourse.nodered.org/u/dm2jokes)\
**Replies:** 12\
**Last updated:** [24 February 2022 11:28 UTC](https://discourse.nodered.org/t/how-to-get-last-inserted-record-in-table-from-code-sqlite/58816 "2022-02-24T11:28:55Z")

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Hi! Well my problem is that cannot get value of inserted ID after insert row in table Tracks. I try to get value in variable last\_inserted but nothing happens. ID need for later in last two sql queries. Thanks for help …

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## [PDF file cut out](https://discourse.nodered.org/t/pdf-file-cut-out/58906)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 7\
**Last updated:** [24 February 2022 11:28 UTC](https://discourse.nodered.org/t/pdf-file-cut-out/58906 "2022-02-24T11:28:40Z")

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Hello! Is it possible to get something out of a PDF file with Node Red and then save it as a PDF again? The PDF is A4 and should then have about 105x148mm. Here is an example. The red part should be test.pdf (13.9 K…

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## [JSON parsing issues due to locale?](https://discourse.nodered.org/t/json-parsing-issues-due-to-locale/58911)

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**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 5\
**Last updated:** [24 February 2022 11:06 UTC](https://discourse.nodered.org/t/json-parsing-issues-due-to-locale/58911 "2022-02-24T11:06:09Z")

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I'm trying to use the json node to parse the string from a GET request, which is properly formatted. The problem seems to be that I get some floating point numbers with decimal point ".", but my locale is using decimal …

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## [How can i get browser ip by dashboard button](https://discourse.nodered.org/t/how-can-i-get-browser-ip-by-dashboard-button/58531)

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**Author:** [@wooAo](https://discourse.nodered.org/u/wooAo)\
**Replies:** 18\
**Last updated:** [24 February 2022 09:27 UTC](https://discourse.nodered.org/t/how-can-i-get-browser-ip-by-dashboard-button/58531 "2022-02-24T09:27:55Z")

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Hello :smiling\_face\_with\_three\_hearts: I want to get user's ip address when they click a ui dashboard button Is it possible?

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## [Sorry, but requesting help with what these nodes are](https://discourse.nodered.org/t/sorry-but-requesting-help-with-what-these-nodes-are/58904)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 12\
**Last updated:** [24 February 2022 08:31 UTC](https://discourse.nodered.org/t/sorry-but-requesting-help-with-what-these-nodes-are/58904 "2022-02-24T08:31:14Z")

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I have been doing some tidying up (which is kind of ironic if I am asking this) and I see some weird config nodes. Sorry, but I don't get what they are. I kind of get that they were imported with some nodes I importe…

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## [Seperate a String and save it to variable](https://discourse.nodered.org/t/seperate-a-string-and-save-it-to-variable/58860)

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**Author:** [@vanilla-sky](https://discourse.nodered.org/u/vanilla-sky)\
**Replies:** 4\
**Last updated:** [24 February 2022 08:16 UTC](https://discourse.nodered.org/t/seperate-a-string-and-save-it-to-variable/58860 "2022-02-24T08:16:06Z")

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Hey there, I want to split a string and save it to different variables. The content of the different lines have a variable length. The result should be: Variable "Status": (Variable length of text) Variable "State…

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## [How to do a "cleaning-mode" for touch screens?](https://discourse.nodered.org/t/how-to-do-a-cleaning-mode-for-touch-screens/58905)

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**Author:** [@nico25](https://discourse.nodered.org/u/nico25)\
**Replies:** 1\
**Last updated:** [24 February 2022 08:07 UTC](https://discourse.nodered.org/t/how-to-do-a-cleaning-mode-for-touch-screens/58905 "2022-02-24T08:07:38Z")

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Hi all, is there a way to disable inputs in the browser(firefox, chrome) for a certain amount of time? Or show a certain overlay? So that you have like a 1minute window where you can clean the touch screen, without pr…

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## [Errors with node-red-contrib-redplc-rpi-mcp342x](https://discourse.nodered.org/t/errors-with-node-red-contrib-redplc-rpi-mcp342x/58755)

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**Author:** [@Tapani](https://discourse.nodered.org/u/Tapani)\
**Replies:** 6\
**Last updated:** [24 February 2022 07:51 UTC](https://discourse.nodered.org/t/errors-with-node-red-contrib-redplc-rpi-mcp342x/58755 "2022-02-24T07:51:28Z")

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Hi, I try to use node-red-contrib-redplc-rpi-mcp342x for reading MCP3424 card on my Raspberry Pi 4. Node Red is installed as an Home Assistant add-on. When starting the flow including the mcp342x node, I get the follo…

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## [Modbus Write Specific Function Code 42](https://discourse.nodered.org/t/modbus-write-specific-function-code-42/58791)

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**Author:** [@mrrobot](https://discourse.nodered.org/u/mrrobot)\
**Replies:** 9\
**Last updated:** [24 February 2022 07:50 UTC](https://discourse.nodered.org/t/modbus-write-specific-function-code-42/58791 "2022-02-24T07:50:59Z")

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Does one of you know if there is a node that support specific function code. for example i will use code 42. Already try to create flow and inject command to convert like below. The result after buffer maker is succesfu…

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## [Hardware recommendations (2022) for node red home automation server](https://discourse.nodered.org/t/hardware-recommendations-2022-for-node-red-home-automation-server/58534)

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**Author:** [@steirx](https://discourse.nodered.org/u/steirx)\
**Replies:** 21\
**Last updated:** [24 February 2022 06:42 UTC](https://discourse.nodered.org/t/hardware-recommendations-2022-for-node-red-home-automation-server/58534 "2022-02-24T06:42:46Z")

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hi everyone, I understand that this topic had been approached a couple of times in the past and there is no one-size -fits-all but I wanted to reach out to the community for their practical experience and tips on what m…

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## [Dynamic MQTT node's "actions-\>connect" guidance needed](https://discourse.nodered.org/t/dynamic-mqtt-nodes-actions-connect-guidance-needed/58878)

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**Author:** [@dattasaurabh82](https://discourse.nodered.org/u/dattasaurabh82)\
**Replies:** 2\
**Last updated:** [24 February 2022 04:23 UTC](https://discourse.nodered.org/t/dynamic-mqtt-nodes-actions-connect-guidance-needed/58878 "2022-02-24T04:23:41Z")

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Hi there, I am a little bit stuck and have some question regarding the "dynamic support" for MQTT nodes (both in and out). To illustrate my issue: here's my flow: \[{"id":"8afdb9e0485c9da7","type":"tab","label":"Flow 2…

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## [How to upload pdf file to sql sever](https://discourse.nodered.org/t/how-to-upload-pdf-file-to-sql-sever/58886)

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**Author:** [@chawana](https://discourse.nodered.org/u/chawana)\
**Replies:** 3\
**Last updated:** [24 February 2022 03:20 UTC](https://discourse.nodered.org/t/how-to-upload-pdf-file-to-sql-sever/58886 "2022-02-24T03:20:28Z")

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Some one can guild line me for uplaod or insert pdf file to sql database

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## [RegEx in function-node](https://discourse.nodered.org/t/regex-in-function-node/58763)

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**Author:** [@Ropper](https://discourse.nodered.org/u/Ropper)\
**Replies:** 23\
**Last updated:** [23 February 2022 23:19 UTC](https://discourse.nodered.org/t/regex-in-function-node/58763 "2022-02-23T23:19:20Z")

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Hi all Gurus: I just threw my self into the node-red carousell, and imediately ran into problems. I Created a flow where I SSH to all my Raspberry Pis, requested each and other CPU-temp. Those temps are forwarded to a…

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## [MQTT config and general questions](https://discourse.nodered.org/t/mqtt-config-and-general-questions/58853)

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**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 18\
**Last updated:** [23 February 2022 23:05 UTC](https://discourse.nodered.org/t/mqtt-config-and-general-questions/58853 "2022-02-23T23:05:23Z")

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I have several pi's running MQTT and it all seems to work. Several weeks ago I saw a post where someone had trouble with MQTT disconnects and the answer seemed to be remove the broker from the pi and just use node red. I…

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## [Problem with current state](https://discourse.nodered.org/t/problem-with-current-state/58599)

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**Author:** [@Leopoll](https://discourse.nodered.org/u/Leopoll)\
**Replies:** 27\
**Last updated:** [23 February 2022 21:34 UTC](https://discourse.nodered.org/t/problem-with-current-state/58599 "2022-02-23T21:34:25Z")

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I'm making a simple scheme that the light doesn't turn off as soon as the motion sensor stops detecting motion. The problem is in the current state node "if lamp is OFF". If it is triggered by a timestamp1, then everyth…

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## [This is a 'node' question, but given the gurus here, someone may have insight to the following error?](https://discourse.nodered.org/t/this-is-a-node-question-but-given-the-gurus-here-someone-may-have-insight-to-the-following-error/58784)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 5\
**Last updated:** [23 February 2022 20:53 UTC](https://discourse.nodered.org/t/this-is-a-node-question-but-given-the-gurus-here-someone-may-have-insight-to-the-following-error/58784 "2022-02-23T20:53:44Z")

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I have for some time stopped running NR directly on Pi devices below Model 3, for various reasons. But I still test NR on lower end Pi devices from an interest perspective. I just created a ARM v6 based build image tha…

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## [Manipulating Message Contents - A nudge in the right direction needed](https://discourse.nodered.org/t/manipulating-message-contents-a-nudge-in-the-right-direction-needed/58887)

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**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 2\
**Last updated:** [23 February 2022 15:55 UTC](https://discourse.nodered.org/t/manipulating-message-contents-a-nudge-in-the-right-direction-needed/58887 "2022-02-23T15:55:59Z")

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Hi Oracles!! I have a problem with the syntax needed to manipulate message contents... Coming into a function node, I have a msg.payload of True or False, and a message topic-ie "powerOn" I need to manipulate this inf…

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## [Buttons, pressing and when to send messages](https://discourse.nodered.org/t/buttons-pressing-and-when-to-send-messages/58629)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 31\
**Last updated:** [23 February 2022 14:51 UTC](https://discourse.nodered.org/t/buttons-pressing-and-when-to-send-messages/58629 "2022-02-23T14:51:53Z")

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(I know: I'm making my own life difficult... but...) I have a couple of projects - one of which I have already put up here - which are subflows to give you a safety feature that you have to double click a button befor…

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## [Read out a global variable](https://discourse.nodered.org/t/read-out-a-global-variable/58879)

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**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 1\
**Last updated:** [23 February 2022 12:23 UTC](https://discourse.nodered.org/t/read-out-a-global-variable/58879 "2022-02-23T12:23:53Z")

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Hi, I am trying to read one specific value out of the global variable 'token'. But like you can see, the result is 'undefined'. So I think that the first lane isn't correct, can anyone help?

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## [Apples and Bananas but no Fruit](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875)

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**Author:** [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)\
**Replies:** 5\
**Last updated:** [23 February 2022 12:00 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875 "2022-02-23T12:00:01Z")

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So I've made this simple setup. I inject a Json msg "A" and this results in Global TEST "A". When I inject Json msg "B" I get the Global TEST "B" as result. But what if I only wanted to change the amount Apples & Banan…

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## [Number is double](https://discourse.nodered.org/t/number-is-double/58863)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 4\
**Last updated:** [23 February 2022 12:00 UTC](https://discourse.nodered.org/t/number-is-double/58863 "2022-02-23T12:00:00Z")

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Hello! I have a CSV list with two values. Is there a possibility to check whether a number is double in the second value. here is an example. TEST;123,124,124,125,126, Result. TEST = 124

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## [Sending JSON body with template node](https://discourse.nodered.org/t/sending-json-body-with-template-node/58865)

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**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 4\
**Last updated:** [23 February 2022 11:10 UTC](https://discourse.nodered.org/t/sending-json-body-with-template-node/58865 "2022-02-23T11:10:00Z")

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Hi, I am trying to send an JSON body to my HTTP request. But I need to give a percentage in the body, that's the reason why I use the template node. When I deploy I get an error "Unexpected end of JSON input", does any…

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## [JSONata retrieve child objects](https://discourse.nodered.org/t/jsonata-retrieve-child-objects/58867)

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**Author:** [@Imo](https://discourse.nodered.org/u/Imo)\
**Replies:** 1\
**Last updated:** [23 February 2022 10:46 UTC](https://discourse.nodered.org/t/jsonata-retrieve-child-objects/58867 "2022-02-23T10:46:43Z")

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Hi all, please help. I am new in jsonata. How can I modify this: { "store": { "abc1": { "category": "reference", "author": "Nigel Rees", "title": "Sayings o…

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## [Whatsapp messages for employees managment](https://discourse.nodered.org/t/whatsapp-messages-for-employees-managment/58622)

<div class="topic-metadata">

**Author:** [@DemalCal96](https://discourse.nodered.org/u/DemalCal96)\
**Replies:** 9\
**Last updated:** [23 February 2022 10:41 UTC](https://discourse.nodered.org/t/whatsapp-messages-for-employees-managment/58622 "2022-02-23T10:41:49Z")

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Hello to all. I want to know if it is possible to receive messages sent in a whatsapp group for the following purpose. The goal would be to be able to recognize the message and by whom it was sent, then use that message…

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