# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=298

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

**Page:** 299

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## [Deconflicting Delay Node for PIR and Ikea Remote](https://discourse.nodered.org/t/deconflicting-delay-node-for-pir-and-ikea-remote/70157)

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**Author:** [@Blacke1991](https://discourse.nodered.org/u/Blacke1991)\
**Replies:** 6\
**Last updated:** [6 November 2022 12:35 UTC](https://discourse.nodered.org/t/deconflicting-delay-node-for-pir-and-ikea-remote/70157 "2022-11-06T12:35:24Z")

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Hello All, Complete Newbee here (been running Node Red for about 3 days). Running NR 2.2.2, using Raspberry Pie, Zigbee Stick with Zigbee2MQTT. Managed to import the devices etc and make a basic flow allowing a hue PIR …

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## [ZWaveError: Failed to open the serial port: Error: No such file or directory, cannot open /dev/ttyACM0 (ZW0100)](https://discourse.nodered.org/t/zwaveerror-failed-to-open-the-serial-port-error-no-such-file-or-directory-cannot-open-dev-ttyacm0-zw0100/70154)

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**Author:** [@Heclim](https://discourse.nodered.org/u/Heclim)\
**Replies:** 2\
**Last updated:** [6 November 2022 11:04 UTC](https://discourse.nodered.org/t/zwaveerror-failed-to-open-the-serial-port-error-no-such-file-or-directory-cannot-open-dev-ttyacm0-zw0100/70154 "2022-11-06T11:04:49Z")

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Hi, I have this message that appears when deploying the zwave controller. installation in docker for node red, version 8 for zwave js, on a raspberry 3b, with an aeotec stick. can you help me to solve this problem. reg…

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## [How to correctly set href path for CSS files in node-red(inside html file)?](https://discourse.nodered.org/t/how-to-correctly-set-href-path-for-css-files-in-node-red-inside-html-file/70114)

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**Author:** [@RavinderSingh13](https://discourse.nodered.org/u/RavinderSingh13)\
**Replies:** 5\
**Last updated:** [6 November 2022 09:47 UTC](https://discourse.nodered.org/t/how-to-correctly-set-href-path-for-css-files-in-node-red-inside-html-file/70114 "2022-11-06T09:47:51Z")

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Hello Node-red experts, Greetings!! I have directory named /root/chatBot/static/css where my css files are residing. After researching from forum I got to know I need to change settings.js file in node-red server with…

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## [Set stoptimer value with text input node&environment variables](https://discourse.nodered.org/t/set-stoptimer-value-with-text-input-node-environment-variables/69849)

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**Author:** [@DrS1981](https://discourse.nodered.org/u/DrS1981)\
**Replies:** 10\
**Last updated:** [6 November 2022 02:08 UTC](https://discourse.nodered.org/t/set-stoptimer-value-with-text-input-node-environment-variables/69849 "2022-11-06T02:08:01Z")

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Hello, can someone give me a simple example for the following problem i want to set the timer value from the stoptimer varidelay with an text input node and an environment variable i tried something but i do not under…

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## [Send video from Home Assistant's Media folder to phone](https://discourse.nodered.org/t/send-video-from-home-assistants-media-folder-to-phone/70139)

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**Author:** [@guy0nabuffalo](https://discourse.nodered.org/u/guy0nabuffalo)\
**Replies:** 0\
**Last updated:** [6 November 2022 00:01 UTC](https://discourse.nodered.org/t/send-video-from-home-assistants-media-folder-to-phone/70139 "2022-11-06T00:01:52Z")

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I've also asked this question in Home Assistant community forums. Since this is Node Red based I figured here might increase my chances of finding resolution. I'm in the process of trying to save all of my photos and vi…

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## [Where is the node-red log (running from command line on ubuntu)](https://discourse.nodered.org/t/where-is-the-node-red-log-running-from-command-line-on-ubuntu/70134)

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**Author:** [@nodeBoy816](https://discourse.nodered.org/u/nodeBoy816)\
**Replies:** 2\
**Last updated:** [5 November 2022 22:41 UTC](https://discourse.nodered.org/t/where-is-the-node-red-log-running-from-command-line-on-ubuntu/70134 "2022-11-05T22:41:09Z")

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I'm going through Securing Node-RED (Securing Node-RED : Node-RED ) and the article references the settings file page which states that "If you are not sure which settings file Node-RED is using, you should check the log…

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## [Difference between Start and Restart Flows in Deploy dropdown](https://discourse.nodered.org/t/difference-between-start-and-restart-flows-in-deploy-dropdown/70121)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 3\
**Last updated:** [5 November 2022 16:44 UTC](https://discourse.nodered.org/t/difference-between-start-and-restart-flows-in-deploy-dropdown/70121 "2022-11-05T16:44:46Z")

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Having enabled runtimeState in settings.js runtimeState: { /\*\* enable or disable flows/state endpoint. Must be set to \`false\` to disable \*/ enabled: true, /\*\* show or hide runtime stop/start …

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## [Lack of a proper padding in a binary conversion](https://discourse.nodered.org/t/lack-of-a-proper-padding-in-a-binary-conversion/70124)

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**Author:** [@lobster87](https://discourse.nodered.org/u/lobster87)\
**Replies:** 2\
**Last updated:** [5 November 2022 16:16 UTC](https://discourse.nodered.org/t/lack-of-a-proper-padding-in-a-binary-conversion/70124 "2022-11-05T16:16:04Z")

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Hi, I try to convert hex to binary using this code: var pattern='5c48a02b8c00'; var pattern\_bits =""; msg.payload=parseInt("0x"+pattern).toString(2).padStart(4, '0'); return msg; It returns the string:1011100010010001…

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## [Mdbus tcp\\rtu gateway](https://discourse.nodered.org/t/mdbus-tcp-rtu-gateway/70003)

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**Author:** [@BLND](https://discourse.nodered.org/u/BLND)\
**Replies:** 7\
**Last updated:** [5 November 2022 10:22 UTC](https://discourse.nodered.org/t/mdbus-tcp-rtu-gateway/70003 "2022-11-05T10:22:35Z")

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I have 2 modbus rtu devices connecting to node red through one modbus tcp\\rtu gateway, i try to control both of them at the same time but i can not. can someone help me

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## [Best place to keep certs ubuntu - fresh install of node red v3](https://discourse.nodered.org/t/best-place-to-keep-certs-ubuntu-fresh-install-of-node-red-v3/70105)

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**Author:** [@nodeBoy816](https://discourse.nodered.org/u/nodeBoy816)\
**Replies:** 8\
**Last updated:** [5 November 2022 11:25 UTC](https://discourse.nodered.org/t/best-place-to-keep-certs-ubuntu-fresh-install-of-node-red-v3/70105 "2022-11-05T11:25:32Z")

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Hello all! I'm in the process of installing node-red and have run the script found here: Running on Raspberry Pi : Node-RED The next step is Securing Node-Red (Securing Node-RED : Node-RED ). In order to do so, I starte…

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## [Cannot install nodes via palette manager](https://discourse.nodered.org/t/cannot-install-nodes-via-palette-manager/70104)

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**Author:** [@877](https://discourse.nodered.org/u/877)\
**Replies:** 6\
**Last updated:** [5 November 2022 09:20 UTC](https://discourse.nodered.org/t/cannot-install-nodes-via-palette-manager/70104 "2022-11-05T09:20:45Z")

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Lately I am not able to install any new nodes via palette manager, see below error. I was trying to install node-red-contrib-blynk-iot I completely rebuilt my Pi4 installation, and restored my node red files (running i…

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## [Grouping of result sets, postgres or jsonata?](https://discourse.nodered.org/t/grouping-of-result-sets-postgres-or-jsonata/70115)

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**Author:** [@flipzz](https://discourse.nodered.org/u/flipzz)\
**Replies:** 0\
**Last updated:** [5 November 2022 08:55 UTC](https://discourse.nodered.org/t/grouping-of-result-sets-postgres-or-jsonata/70115 "2022-11-05T08:55:06Z")

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Hi, I have a question on json, jsonata and postgres. I am fetching result sets from postgresql. The data in Postgres is stored in tables where I do joins (e.g. one table called group, one with people jointed through a …

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## [Flow Optimization: Confused about how a flow is handled on the stack](https://discourse.nodered.org/t/flow-optimization-confused-about-how-a-flow-is-handled-on-the-stack/69965)

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**Author:** [@PLCMercenary](https://discourse.nodered.org/u/PLCMercenary)\
**Replies:** 4\
**Last updated:** [4 November 2022 23:38 UTC](https://discourse.nodered.org/t/flow-optimization-confused-about-how-a-flow-is-handled-on-the-stack/69965 "2022-11-04T23:38:40Z")

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I am doing some test runs just to get an understanding of flow execution times and how flows can be optimized in different ways for tighter execution and to give customers a realistic idea of NR "deterministic" abilities…

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## [Sending JSON data to a table](https://discourse.nodered.org/t/sending-json-data-to-a-table/69627)

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**Author:** [@Timmer2022](https://discourse.nodered.org/u/Timmer2022)\
**Replies:** 8\
**Last updated:** [4 November 2022 23:36 UTC](https://discourse.nodered.org/t/sending-json-data-to-a-table/69627 "2022-11-04T23:36:58Z")

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Hello folks. I am just starting out with Node-Red and need some help.. here is what I have so far: A timestamp inject connected to an http in node which gets a URL API from my baserow site. (the "Return" dropdown is s…

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## [Problem of using Raspberry Pi](https://discourse.nodered.org/t/problem-of-using-raspberry-pi/70089)

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**Author:** [@zmarcoz1](https://discourse.nodered.org/u/zmarcoz1)\
**Replies:** 3\
**Last updated:** [4 November 2022 23:25 UTC](https://discourse.nodered.org/t/problem-of-using-raspberry-pi/70089 "2022-11-04T23:25:22Z")

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I am new to both Raspberry and NodeRed. My goal is to connect the Raspberry to a machine via a network switch and then use the Raspberry to pass the data to internet via its wifi. Before I started any connection, I am …

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## [What are the differences between the output of exec-queue node and exec-node](https://discourse.nodered.org/t/what-are-the-differences-between-the-output-of-exec-queue-node-and-exec-node/70097)

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**Author:** [@Wilay](https://discourse.nodered.org/u/Wilay)\
**Replies:** 1\
**Last updated:** [4 November 2022 22:10 UTC](https://discourse.nodered.org/t/what-are-the-differences-between-the-output-of-exec-queue-node-and-exec-node/70097 "2022-11-04T22:10:41Z")

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Basically, I'm trying to get the ffmpeg image to work with exec-queue instead of exec. With the exec node, it works perfect, as the output is a Buffer that I can connect to a Base64 node to show in UIBuilder. When I try…

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## [Get data from a website using the Http request node](https://discourse.nodered.org/t/get-data-from-a-website-using-the-http-request-node/70086)

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**Author:** [@Engi](https://discourse.nodered.org/u/Engi)\
**Replies:** 4\
**Last updated:** [4 November 2022 18:18 UTC](https://discourse.nodered.org/t/get-data-from-a-website-using-the-http-request-node/70086 "2022-11-04T18:18:55Z")

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Hi, I am trying to pull data from a website using the http request node and a HTML node like they do in this example Simple GET request : Node-RED, However my data is in a jstcache variable instead of a class as shown in…

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## [How to populate dashboard dropdown button dynamically](https://discourse.nodered.org/t/how-to-populate-dashboard-dropdown-button-dynamically/5594)

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**Author:** [@aargollo](https://discourse.nodered.org/u/aargollo)\
**Replies:** 23\
**Last updated:** [4 November 2022 17:42 UTC](https://discourse.nodered.org/t/how-to-populate-dashboard-dropdown-button-dynamically/5594 "2022-11-04T17:42:58Z")

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Hi Guys, Im trying to populate dynamically the dashboard dropdown button node from previous function-node. I can't find any documentation or examples that can explain how to do it! Can somebody help me ? Best Regards, …

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## [Upgrade node-red on raspberry pi](https://discourse.nodered.org/t/upgrade-node-red-on-raspberry-pi/69846)

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**Author:** [@henrik1](https://discourse.nodered.org/u/henrik1)\
**Replies:** 65\
**Last updated:** [4 November 2022 17:30 UTC](https://discourse.nodered.org/t/upgrade-node-red-on-raspberry-pi/69846 "2022-11-04T17:30:14Z")

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Hi, Some time ago I installed Node Red on my Raspberry Pi Zero. I think it was Node Red version 1.2.9 or something like that. I have used it for "sandbox'ing" to test different things with ZigBee/MQTT/Tasmota/... and …

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## [How extract time for travel OR take a screenshot of GOOGLE MAPS?](https://discourse.nodered.org/t/how-extract-time-for-travel-or-take-a-screenshot-of-google-maps/70090)

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**Author:** [@lumanga](https://discourse.nodered.org/u/lumanga)\
**Replies:** 1\
**Last updated:** [4 November 2022 16:50 UTC](https://discourse.nodered.org/t/how-extract-time-for-travel-or-take-a-screenshot-of-google-maps/70090 "2022-11-04T16:50:54Z")

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Hi all, I would like to Extract the TIMEs that google maps give for my travel (number 23minute and 26 minute in the image in attach) OR take a "screenshot" of the Goggle Maps travel and save as Image. I have rasp…

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## [Multiple lines in graph from JSONata](https://discourse.nodered.org/t/multiple-lines-in-graph-from-jsonata/69944)

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**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 6\
**Last updated:** [4 November 2022 13:45 UTC](https://discourse.nodered.org/t/multiple-lines-in-graph-from-jsonata/69944 "2022-11-04T13:45:33Z")

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I try to get historical data in a graph. I have 3 values, huidig (current), max and min. All are temperatures. I get the data from a MariaDB and feed it through a JSONata node. I have the following script in a change no…

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## [Javascript clearInterval in if statement](https://discourse.nodered.org/t/javascript-clearinterval-in-if-statement/70055)

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**Author:** [@Mick](https://discourse.nodered.org/u/Mick)\
**Replies:** 6\
**Last updated:** [4 November 2022 13:43 UTC](https://discourse.nodered.org/t/javascript-clearinterval-in-if-statement/70055 "2022-11-04T13:43:53Z")

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I have a function where I want to use setInterval to start a timer and using if statements, do specific commands. I noticed that multiple timer intervals are being created. From what I can tell the new timers are st…

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## [Dashboard suddenly asks for password (Hacked Node-RED servers)](https://discourse.nodered.org/t/dashboard-suddenly-asks-for-password-hacked-node-red-servers/69083)

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**Author:** [@jan.ove](https://discourse.nodered.org/u/jan.ove)\
**Replies:** 127\
**Last updated:** [4 November 2022 13:43 UTC](https://discourse.nodered.org/t/dashboard-suddenly-asks-for-password-hacked-node-red-servers/69083 "2022-11-04T13:43:06Z")

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Hello, and thanks for your reply in advance. For a few years I have used node-red for home control, simple setup, control of heat pumps, monitoring of temperatures etc., I am far from an expert on this, but I got it to …

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## [Using Tasmota MQTT Switch toggle to control lighing](https://discourse.nodered.org/t/using-tasmota-mqtt-switch-toggle-to-control-lighing/70084)

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**Author:** [@cpyandy](https://discourse.nodered.org/u/cpyandy)\
**Replies:** 2\
**Last updated:** [4 November 2022 12:05 UTC](https://discourse.nodered.org/t/using-tasmota-mqtt-switch-toggle-to-control-lighing/70084 "2022-11-04T12:05:23Z")

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Hi All, Working on a small project using Tasmota on the Wemos D1 Mini, I am connecting one of the input to a momentary switch and I have de-attached switches to relay using setoption 114. I am getting this mqtt message…

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## [Reading multiple variables from PLC, how to read single variables?](https://discourse.nodered.org/t/reading-multiple-variables-from-plc-how-to-read-single-variables/70036)

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**Author:** [@bart92](https://discourse.nodered.org/u/bart92)\
**Replies:** 4\
**Last updated:** [4 November 2022 11:52 UTC](https://discourse.nodered.org/t/reading-multiple-variables-from-plc-how-to-read-single-variables/70036 "2022-11-04T11:52:19Z")

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Hello, I'm new to node-red. I have no idea how to go about solving my issue. I have added a PLC in which I have defined several variables. Communication works but It returns msg.payload, which contains all variable names…

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## [Cannot get the Functions in node red to edit](https://discourse.nodered.org/t/cannot-get-the-functions-in-node-red-to-edit/13956)

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**Author:** [@rlgjr562](https://discourse.nodered.org/u/rlgjr562)\
**Replies:** 24\
**Last updated:** [4 November 2022 10:55 UTC](https://discourse.nodered.org/t/cannot-get-the-functions-in-node-red-to-edit/13956 "2022-11-04T10:55:26Z")

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I am fairly new to Node-Red but I am fairly experience with computers. A couple of weeks ago I installed Node-Red and I am trying to hook TTN to my MySQL data base. I am getting the data but when I drag a function bloc…

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## [Kafka Consumers for non node-red Producers](https://discourse.nodered.org/t/kafka-consumers-for-non-node-red-producers/70079)

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**Author:** [@elfinbird](https://discourse.nodered.org/u/elfinbird)\
**Replies:** 2\
**Last updated:** [4 November 2022 10:39 UTC](https://discourse.nodered.org/t/kafka-consumers-for-non-node-red-producers/70079 "2022-11-04T10:39:33Z")

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Hi, Is anyone able to consume Kafka messages from topics produced by non node-red Producers? For all message generated from outside the node-red project, node-red's kafka throws an error for 'unsupported snappy compres…

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## [Mit Form Daten zu InfluxDB schreiben](https://discourse.nodered.org/t/mit-form-daten-zu-influxdb-schreiben/69827)

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**Author:** [@alex2506](https://discourse.nodered.org/u/alex2506)\
**Replies:** 10\
**Last updated:** [4 November 2022 07:52 UTC](https://discourse.nodered.org/t/mit-form-daten-zu-influxdb-schreiben/69827 "2022-11-04T07:52:32Z")

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Hallo, bin neu hier und habe eine Frage zur Umsetzung. Ich habe aktuell eine InfluxDB laufen und würde gerne dort Manuell Daten aus Node-Red schreiben. ich habe mir im Dashboard eine Form erstellt. Diese hat zwei Eing…

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## [Receive Modbus values, then convert](https://discourse.nodered.org/t/receive-modbus-values-then-convert/69954)

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**Author:** [@MaaAR](https://discourse.nodered.org/u/MaaAR)\
**Replies:** 8\
**Last updated:** [4 November 2022 08:47 UTC](https://discourse.nodered.org/t/receive-modbus-values-then-convert/69954 "2022-11-04T08:47:09Z")

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Hello all, I would like to tap the outside temperature from my heater. This works so far also. An array with the value is delivered. Now I want to parse this value. I get the error message: Error: data is not an array …

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## [Import a CA certificate](https://discourse.nodered.org/t/import-a-ca-certificate/70040)

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**Author:** [@Li\_mdv](https://discourse.nodered.org/u/Li_mdv)\
**Replies:** 0\
**Last updated:** [3 November 2022 15:53 UTC](https://discourse.nodered.org/t/import-a-ca-certificate/70040 "2022-11-03T15:53:18Z")

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Hello team ! I get this error : "unable to get local issuer certificate". I'm 90% sure it's because I don't specify the CA certificate and here's my question: How can I, by giving the path of my CA certificate store…

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