# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=493

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**Page:** 494

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## [Postgresql - how can I create table](https://discourse.nodered.org/t/postgresql-how-can-i-create-table/51273)

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**Author:** [@vishnupriya](https://discourse.nodered.org/u/vishnupriya)\
**Replies:** 1\
**Last updated:** [20 September 2021 09:03 UTC](https://discourse.nodered.org/t/postgresql-how-can-i-create-table/51273 "2021-09-20T09:03:14Z")

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I'm trying to create a table in my pgadmin using node-red. But I'm not getting the table in pgadmin even after deploying it. This is my Flow Inject Node is given below command given in msg.payload = CREATE TABL…

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## [Suggestion Request Color Bulb state synchronization](https://discourse.nodered.org/t/suggestion-request-color-bulb-state-synchronization/51019)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 13\
**Last updated:** [19 September 2021 23:28 UTC](https://discourse.nodered.org/t/suggestion-request-color-bulb-state-synchronization/51019 "2021-09-19T23:28:20Z")

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Warning, this post may be annoyingly long, but there is a lot of context to my question. I am hoping maybe in the rubber ducking sense, just laying it all out might help point to a solution. I am using NR as the central…

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## [Software PWM on RPi](https://discourse.nodered.org/t/software-pwm-on-rpi/51254)

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**Author:** [@wester.weerdt](https://discourse.nodered.org/u/wester.weerdt)\
**Replies:** 7\
**Last updated:** [19 September 2021 22:47 UTC](https://discourse.nodered.org/t/software-pwm-on-rpi/51254 "2021-09-19T22:47:20Z")

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I'd like to create a node for the Software PWM which supports any GPIO pins and support a fixed frequency(38kHz) and fixed duty cycle(50%). In other word, I just need 5~6 GPIO pins that output 38kHz/50% PWM signal. I h…

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## [Access a payload property by using a string variable](https://discourse.nodered.org/t/access-a-payload-property-by-using-a-string-variable/50981)

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**Author:** [@Daniele-Tampieri](https://discourse.nodered.org/u/Daniele-Tampieri)\
**Replies:** 5\
**Last updated:** [19 September 2021 21:14 UTC](https://discourse.nodered.org/t/access-a-payload-property-by-using-a-string-variable/50981 "2021-09-19T21:14:28Z")

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Premise My question is related to this Q&A as my problem is similar. I have a msg.payload which has several properties (as a matter of facts arrays, but this is not meaningful for the question) whose name is section\_x w…

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## [Node That only sends when 3 Payloads come in the right Order](https://discourse.nodered.org/t/node-that-only-sends-when-3-payloads-come-in-the-right-order/51237)

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**Author:** [@Zyan](https://discourse.nodered.org/u/Zyan)\
**Replies:** 6\
**Last updated:** [19 September 2021 18:27 UTC](https://discourse.nodered.org/t/node-that-only-sends-when-3-payloads-come-in-the-right-order/51237 "2021-09-19T18:27:11Z")

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Hi guys iam Trying to make somethig that when i send 3 Different Payloads in a Node it should send something. For Example first Payload : "up" second Payload: "down" third Payload: "left" So and only when these 3 Paylo…

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## [Cannot access filename when using node-red-contrib-ftp-server](https://discourse.nodered.org/t/cannot-access-filename-when-using-node-red-contrib-ftp-server/51240)

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**Author:** [@pcborges](https://discourse.nodered.org/u/pcborges)\
**Replies:** 4\
**Last updated:** [19 September 2021 17:10 UTC](https://discourse.nodered.org/t/cannot-access-filename-when-using-node-red-contrib-ftp-server/51240 "2021-09-19T17:10:32Z")

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Hi, I am trying to use the FTP server node but are facing a problem. My flow is as below: As can be seem the filename is topic of the message. But whatever I do to extract the filename and remove the "/" results ei…

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## [Comma and semicolon](https://discourse.nodered.org/t/comma-and-semicolon/51186)

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**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 11\
**Last updated:** [19 September 2021 16:47 UTC](https://discourse.nodered.org/t/comma-and-semicolon/51186 "2021-09-19T16:47:23Z")

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In the last months I wrote a lot of code in node red for my home automation and even if I am a beginner, it's work fine. I also copied a lot of code from this forum but sincerely I didn't understand the proper use of co…

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## [Split node node working - no doubt a user error!](https://discourse.nodered.org/t/split-node-node-working-no-doubt-a-user-error/51235)

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**Author:** [@grumpazoid](https://discourse.nodered.org/u/grumpazoid)\
**Replies:** 2\
**Last updated:** [19 September 2021 13:37 UTC](https://discourse.nodered.org/t/split-node-node-working-no-doubt-a-user-error/51235 "2021-09-19T13:37:31Z")

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Node red 2.0.6 After an API change my data that I'm feeding into the split node has changed. Now I can't get it to split into separate messages. The data I am trying to split is shown here I want to separate out the a…

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## [Data from different sensors in ui\_table](https://discourse.nodered.org/t/data-from-different-sensors-in-ui-table/51219)

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**Author:** [@Blaze2be](https://discourse.nodered.org/u/Blaze2be)\
**Replies:** 4\
**Last updated:** [19 September 2021 12:34 UTC](https://discourse.nodered.org/t/data-from-different-sensors-in-ui-table/51219 "2021-09-19T12:34:11Z")

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Hello dear forum members, I am a newbie and have the following problem: I get data from different sensors (MQTT) and want to display them in the Ui table, but the data does not update with my flow. What do I have to do…

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## [Pass user Id to node-red-node-pushover with msg property is possible?](https://discourse.nodered.org/t/pass-user-id-to-node-red-node-pushover-with-msg-property-is-possible/51233)

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**Author:** [@essereumano](https://discourse.nodered.org/u/essereumano)\
**Replies:** 4\
**Last updated:** [19 September 2021 12:22 UTC](https://discourse.nodered.org/t/pass-user-id-to-node-red-node-pushover-with-msg-property-is-possible/51233 "2021-09-19T12:22:30Z")

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Good day everyone, I would need to send push notifications via Pushover, unfortunately the node-red-node-pushover node does not seem to allow you to send the user id via msg dynamically as for the other parameters but on…

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## [Settings.js overwritten](https://discourse.nodered.org/t/settings-js-overwritten/51221)

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**Author:** [@Sourison](https://discourse.nodered.org/u/Sourison)\
**Replies:** 6\
**Last updated:** [19 September 2021 08:32 UTC](https://discourse.nodered.org/t/settings-js-overwritten/51221 "2021-09-19T08:32:43Z")

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Hi all, I've tried to do some changes with the node-red settings.js (/usr/lib/node\_modules/node-red). It works fine until i deploy a flow. The settings.js gets overwritten by a (i think json) string. How can i make t…

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## ['ERROR code expired' in Alexa virtual Home interface](https://discourse.nodered.org/t/error-code-expired-in-alexa-virtual-home-interface/51226)

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**Author:** [@aohnsorg](https://discourse.nodered.org/u/aohnsorg)\
**Replies:** 0\
**Last updated:** [19 September 2021 01:27 UTC](https://discourse.nodered.org/t/error-code-expired-in-alexa-virtual-home-interface/51226 "2021-09-19T01:27:47Z")

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Hi, I am trying to configure the Alexa node, but when I try to create the connection and the verification code comes out, after only 4/5 seconds the message 'ERROR code expired' appears, and even if I manage to authoriz…

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## [Water sensor with node RED](https://discourse.nodered.org/t/water-sensor-with-node-red/51197)

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**Author:** [@maury77](https://discourse.nodered.org/u/maury77)\
**Replies:** 6\
**Last updated:** [18 September 2021 19:58 UTC](https://discourse.nodered.org/t/water-sensor-with-node-red/51197 "2021-09-18T19:58:36Z")

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Hello I have a wemos D1 mini to count the pulses of the water sensor the wemos resets the value of the pulses at every power off. Is it possible with node red to create a sensor that can keep the total count of liter…

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## [Node-red-contrib-tfjs-coco-ssd crashes Node-RED when running on a M1 Mac](https://discourse.nodered.org/t/node-red-contrib-tfjs-coco-ssd-crashes-node-red-when-running-on-a-m1-mac/51210)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 2\
**Last updated:** [18 September 2021 17:17 UTC](https://discourse.nodered.org/t/node-red-contrib-tfjs-coco-ssd-crashes-node-red-when-running-on-a-m1-mac/51210 "2021-09-18T17:17:45Z")

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Mac mini (M1 2020) macOS Big Sur version 11.6 As soon as you try to deploy, after adding node-red-contrib-tfjs-coco-ssd to a flow, Node-RED crashes. Here is the log: Paul@Mac-mini ~ % node-red --safe 18 Sep 12:10:52 …

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## [Razer chroma integration](https://discourse.nodered.org/t/razer-chroma-integration/51209)

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**Author:** [@akszyn\_pl](https://discourse.nodered.org/u/akszyn_pl)\
**Replies:** 1\
**Last updated:** [18 September 2021 15:45 UTC](https://discourse.nodered.org/t/razer-chroma-integration/51209 "2021-09-18T15:45:24Z")

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Anybody have any ideas on how I could integrate with Razer Chroma SDK E.g with Rest Api use into Home Assistant? Think it would be able to receive notifications by the lights changing colours your keyboard or mause etc

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## [Can't updated nodes get error](https://discourse.nodered.org/t/cant-updated-nodes-get-error/51177)

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**Author:** [@cameronuk](https://discourse.nodered.org/u/cameronuk)\
**Replies:** 6\
**Last updated:** [18 September 2021 13:41 UTC](https://discourse.nodered.org/t/cant-updated-nodes-get-error/51177 "2021-09-18T13:41:21Z")

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Hi hope someone can help me with this error, When i try to update a any nodes in the manage palette i get this error, Node red version 2.0.6 npm WARN multiple-select@1.5.2 requires a peer of jquery@1.9.1 - 3 but none …

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## [How to synchronize two input messages?](https://discourse.nodered.org/t/how-to-synchronize-two-input-messages/51190)

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**Author:** [@kakyoism](https://discourse.nodered.org/u/kakyoism)\
**Replies:** 14\
**Last updated:** [18 September 2021 11:29 UTC](https://discourse.nodered.org/t/how-to-synchronize-two-input-messages/51190 "2021-09-18T11:29:40Z")

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Using the screenshot I'm trying to popup a message box using a node which accepts the title of the message box the message to show Here is the node function function collectInputs(msg, context) { var title = cont…

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## [Simple condition question](https://discourse.nodered.org/t/simple-condition-question/51180)

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**Author:** [@steffeluring](https://discourse.nodered.org/u/steffeluring)\
**Replies:** 4\
**Last updated:** [18 September 2021 11:10 UTC](https://discourse.nodered.org/t/simple-condition-question/51180 "2021-09-18T11:10:26Z")

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Hello! I´m totally new to Node Red. I´m trying to make a flow that unlocks my door when I arrive to my house based on my location. It works really good but now I´m trying to add other family members to the flow. The…

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## [Subflow environment variables and instance variables](https://discourse.nodered.org/t/subflow-environment-variables-and-instance-variables/51192)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 2\
**Last updated:** [18 September 2021 11:06 UTC](https://discourse.nodered.org/t/subflow-environment-variables-and-instance-variables/51192 "2021-09-18T11:06:24Z")

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I am trying to understand the difference between the subflow environment variables and the subflow instance variables and their use cases. ie. when i doubleclick a subflow, i see a tab "environment variables", when clic…

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## [Switch node not Consistent](https://discourse.nodered.org/t/switch-node-not-consistent/11908)

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**Author:** [@sheminasalam](https://discourse.nodered.org/u/sheminasalam)\
**Replies:** 21\
**Last updated:** [18 September 2021 09:43 UTC](https://discourse.nodered.org/t/switch-node-not-consistent/11908 "2021-09-18T09:43:58Z")

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recently i noticed that my flows were not getting executed consistently. i did an analysis and found that it was switch node that was creating the problem. it works inconsistently. some times it forwards the input and at…

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## [Code=killed, Status=4/ILL](https://discourse.nodered.org/t/code-killed-status-4-ill/9627)

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**Author:** [@ruifcsilva](https://discourse.nodered.org/u/ruifcsilva)\
**Replies:** 7\
**Last updated:** [7 April 2019 10:42 UTC](https://discourse.nodered.org/t/code-killed-status-4-ill/9627 "2019-04-07T10:42:54Z")

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Hi everyone, just joined de forum and a newbie to node-red and raspbian... need your help if possible! I was working on my flow when node-red stopped working (not sure what I did wrong)! but when I try to start it ag…

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## [Dynamically adding a catalog](https://discourse.nodered.org/t/dynamically-adding-a-catalog/51181)

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**Author:** [@nlecaude](https://discourse.nodered.org/u/nlecaude)\
**Replies:** 0\
**Last updated:** [17 September 2021 22:12 UTC](https://discourse.nodered.org/t/dynamically-adding-a-catalog/51181 "2021-09-17T22:12:15Z")

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I know I can add a catalog source in the settings.js file but I was wondering if it was possible to dynamically add a catalog ? I would write a node/plugin to serve my private catalog and the ideal workflow would be the…

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## [Node-red projects doesn't authenticate against remote repo](https://discourse.nodered.org/t/node-red-projects-doesnt-authenticate-against-remote-repo/51172)

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**Author:** [@alexisayenko](https://discourse.nodered.org/u/alexisayenko)\
**Replies:** 2\
**Last updated:** [17 September 2021 19:04 UTC](https://discourse.nodered.org/t/node-red-projects-doesnt-authenticate-against-remote-repo/51172 "2021-09-17T19:04:47Z")

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Authentication required for repository https://github.com/.... Each time I enter correct credentials, but still getting the same message.

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## [Flow bei Anwesenheit unterbrechen](https://discourse.nodered.org/t/flow-bei-anwesenheit-unterbrechen/51156)

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**Author:** [@haegele100](https://discourse.nodered.org/u/haegele100)\
**Replies:** 5\
**Last updated:** [17 September 2021 18:49 UTC](https://discourse.nodered.org/t/flow-bei-anwesenheit-unterbrechen/51156 "2021-09-17T18:49:20Z")

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Hallo, Ich habe im Forum keine Lösung gefunden wie ich einen Flow (senden von Snapshot per Email) bei Anwesenheit unterbrechen kann. Die Anwesenheit ist über Homematic als Systemvariable erstellt und zugänglich. Gruß

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## [Signed node-red docker images?](https://discourse.nodered.org/t/signed-node-red-docker-images/51133)

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**Author:** [@michael.r](https://discourse.nodered.org/u/michael.r)\
**Replies:** 3\
**Last updated:** [17 September 2021 17:52 UTC](https://discourse.nodered.org/t/signed-node-red-docker-images/51133 "2021-09-17T17:52:27Z")

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I’m using the nodered/node-red image and I’m wondering if it's being signed anywhere I can check. planning on enabling DOCKER\_CONTENT\_TRUST

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## [Send message to another topic](https://discourse.nodered.org/t/send-message-to-another-topic/51170)

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**Author:** [@fikerplunk](https://discourse.nodered.org/u/fikerplunk)\
**Replies:** 3\
**Last updated:** [17 September 2021 16:40 UTC](https://discourse.nodered.org/t/send-message-to-another-topic/51170 "2021-09-17T16:40:45Z")

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Hey guys! I'm new to node-red so I'm not getting a solution to my problem. So I get via mqtt a message that I need to extract some data, and then I need to send two separate messages, one stop each topic, but I'm not a…

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## [How to trigger a web page to pop up the minute a serial output satisfies a condition?](https://discourse.nodered.org/t/how-to-trigger-a-web-page-to-pop-up-the-minute-a-serial-output-satisfies-a-condition/50444)

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**Author:** [@Kanjo](https://discourse.nodered.org/u/Kanjo)\
**Replies:** 17\
**Last updated:** [7 September 2021 14:10 UTC](https://discourse.nodered.org/t/how-to-trigger-a-web-page-to-pop-up-the-minute-a-serial-output-satisfies-a-condition/50444 "2021-09-07T14:10:27Z")

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I recently made a sensor using my Arduino that essentially displays the distance between an object continuously, it outputs to the serial monitor with no issue whatsoever. I wanted to spice it up by connecting it to my P…

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## [Palette - update, install or remove](https://discourse.nodered.org/t/palette-update-install-or-remove/51146)

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**Author:** [@sblogoshs](https://discourse.nodered.org/u/sblogoshs)\
**Replies:** 3\
**Last updated:** [17 September 2021 14:28 UTC](https://discourse.nodered.org/t/palette-update-install-or-remove/51146 "2021-09-17T14:28:37Z")

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Hi :slightly\_smiling\_face: With everything I try to do, whether update, install or delete, I get this error (pic). I don't remember when this started, but it's been like this for a long time now. :frowning\_face:

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## [How to set a Redirect URI in order to receive an access token](https://discourse.nodered.org/t/how-to-set-a-redirect-uri-in-order-to-receive-an-access-token/51159)

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**Author:** [@humphrysr](https://discourse.nodered.org/u/humphrysr)\
**Replies:** 0\
**Last updated:** [17 September 2021 14:01 UTC](https://discourse.nodered.org/t/how-to-set-a-redirect-uri-in-order-to-receive-an-access-token/51159 "2021-09-17T14:01:05Z")

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Is there something to read that illustrates how to set a redirect URI to receive an access token? Using the IBM Node-red Cloud at the moment

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## [Visual feedback on which node is currently running?](https://discourse.nodered.org/t/visual-feedback-on-which-node-is-currently-running/51096)

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**Author:** [@kakyoism](https://discourse.nodered.org/u/kakyoism)\
**Replies:** 2\
**Last updated:** [17 September 2021 13:38 UTC](https://discourse.nodered.org/t/visual-feedback-on-which-node-is-currently-running/51096 "2021-09-17T13:38:10Z")

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I've checked various posts about debugging nodes and so far I've been able to use the debug node, logging, and VS Code debugger. However, during a potentially long-running flow, it would be interesting to know the progr…

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