# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=237

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

**Page:** 238

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## [How can bootstrap time be measured?](https://discourse.nodered.org/t/how-can-bootstrap-time-be-measured/76183)

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**Author:** [@eugeneVzaidun](https://discourse.nodered.org/u/eugeneVzaidun)\
**Replies:** 3\
**Last updated:** [6 March 2023 21:52 UTC](https://discourse.nodered.org/t/how-can-bootstrap-time-be-measured/76183 "2023-03-06T21:52:37Z")

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What is the average system bootstrap time for node-red application? How can this be measured?

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## [\[CLOSED DUP\] How to hide ip address in a browser on node red dashboard](https://discourse.nodered.org/t/closed-dup-how-to-hide-ip-address-in-a-browser-on-node-red-dashboard/76199)

<div class="topic-metadata">

**Author:** [@devifast](https://discourse.nodered.org/u/devifast)\
**Replies:** 0\
**Last updated:** [6 March 2023 21:21 UTC](https://discourse.nodered.org/t/closed-dup-how-to-hide-ip-address-in-a-browser-on-node-red-dashboard/76199 "2023-03-06T21:21:48Z")

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Is it possible to replace the ip address with a title? Thanks in advance.

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## [Node red on win 10 / arduino](https://discourse.nodered.org/t/node-red-on-win-10-arduino/76170)

<div class="topic-metadata">

**Author:** [@brg](https://discourse.nodered.org/u/brg)\
**Replies:** 7\
**Last updated:** [6 March 2023 21:36 UTC](https://discourse.nodered.org/t/node-red-on-win-10-arduino/76170 "2023-03-06T21:36:23Z")

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Hello, i am new to this area and would like to use node red on arduino to controll sensors connected to arduino - only locally (meaning create senarios between desktop on node-red and arduino board - no need for interne…

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## [Running more than 1 flow?](https://discourse.nodered.org/t/running-more-than-1-flow/76177)

<div class="topic-metadata">

**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 2\
**Last updated:** [6 March 2023 21:32 UTC](https://discourse.nodered.org/t/running-more-than-1-flow/76177 "2023-03-06T21:32:22Z")

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If you have more than 1 Flow (Example: Flow 1, Flow 2, Flow 3,) will all the flows run are do I have to tell Node Red somehow to run all flows?

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## [UIbuilder .ico - how to replace](https://discourse.nodered.org/t/uibuilder-ico-how-to-replace/76191)

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**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 1\
**Last updated:** [6 March 2023 17:20 UTC](https://discourse.nodered.org/t/uibuilder-ico-how-to-replace/76191 "2023-03-06T17:20:01Z")

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Maybe a minor point, but how to replace the /uibuilder/common/images/node-blue.ico ? In the template \<title\>Blank template - Node-RED uibuilder\</title\> \<meta name="description" content="Node-RED uibuilder - Bla…

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## [I want to fetch data from sqlite in batches after certain interval of time](https://discourse.nodered.org/t/i-want-to-fetch-data-from-sqlite-in-batches-after-certain-interval-of-time/76135)

<div class="topic-metadata">

**Author:** [@YashPisat](https://discourse.nodered.org/u/YashPisat)\
**Replies:** 10\
**Last updated:** [6 March 2023 17:07 UTC](https://discourse.nodered.org/t/i-want-to-fetch-data-from-sqlite-in-batches-after-certain-interval-of-time/76135 "2023-03-06T17:07:55Z")

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I am storing the sensor data in sqlite databse. In one hour around 7200 rows of data is stored in the database. So after an interval of one hour, I want to fetch 7000 rows and send to AWS using MQTT. This process should …

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## [Printing label Brother QL-820NWB node-red](https://discourse.nodered.org/t/printing-label-brother-ql-820nwb-node-red/76105)

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**Author:** [@Marnick](https://discourse.nodered.org/u/Marnick)\
**Replies:** 6\
**Last updated:** [6 March 2023 16:59 UTC](https://discourse.nodered.org/t/printing-label-brother-ql-820nwb-node-red/76105 "2023-03-06T16:59:25Z")

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Hi there, I'am Marnick Bijlsma and i'am trying to connect my Brother QL-820NWB printer with node-red. I tried to do this with Esc/P commands via port 9100. I can see that its connected with the 9100 port and its own IP…

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## [Node Property UI that is dynamic and with subgroups / subtree structure?](https://discourse.nodered.org/t/node-property-ui-that-is-dynamic-and-with-subgroups-subtree-structure/76187)

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**Author:** [@Shan](https://discourse.nodered.org/u/Shan)\
**Replies:** 0\
**Last updated:** [6 March 2023 16:23 UTC](https://discourse.nodered.org/t/node-property-ui-that-is-dynamic-and-with-subgroups-subtree-structure/76187 "2023-03-06T16:23:47Z")

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I was playing around with creating a node and I was wondering if I can create a node property ui in the editor is such a way that translates to something of an .ini file: \[group1\] key1 = value1 key2 = value2 \[group2\] a…

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## [No Export Dialog](https://discourse.nodered.org/t/no-export-dialog/76181)

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**Author:** [@xytsrm](https://discourse.nodered.org/u/xytsrm)\
**Replies:** 2\
**Last updated:** [6 March 2023 15:16 UTC](https://discourse.nodered.org/t/no-export-dialog/76181 "2023-03-06T15:16:00Z")

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Hello, I'm having an unexpected problem with EXPORT for one Node-Red installation. I currently have Node-Red installed on 3 Windows 10 PC's. Two installations were made months ago, the third was just created. For the f…

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## [JSONata value - keyname](https://discourse.nodered.org/t/jsonata-value-keyname/76175)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 7\
**Last updated:** [6 March 2023 15:41 UTC](https://discourse.nodered.org/t/jsonata-value-keyname/76175 "2023-03-06T15:41:03Z")

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I have trouble with jsonata. Given this array: \[ { "\_ansible\_item\_label": "hostname.stdout", "\_ansible\_no\_log": null, "\_ansible\_verbose\_always": true, "ansible\_loop\_var": "item", "changed": false,…

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## [NRLint Overlapping nodes issues via Cli, but not in GUI](https://discourse.nodered.org/t/nrlint-overlapping-nodes-issues-via-cli-but-not-in-gui/75998)

<div class="topic-metadata">

**Author:** [@kaskroese](https://discourse.nodered.org/u/kaskroese)\
**Replies:** 2\
**Last updated:** [6 March 2023 07:57 UTC](https://discourse.nodered.org/t/nrlint-overlapping-nodes-issues-via-cli-but-not-in-gui/75998 "2023-03-06T07:57:13Z")

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Hi, I'm using NRLint as linting tool for our Node-RED project. I found some weird behaviour regarding the no-overlapping-nodes rule and I'm curious if anyone else has the same issue. We solved all the linting issues an…

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## [Exec Node, connection refused in service mode, ok when lnode red launched from terminal](https://discourse.nodered.org/t/exec-node-connection-refused-in-service-mode-ok-when-lnode-red-launched-from-terminal/76163)

<div class="topic-metadata">

**Author:** [@plouc](https://discourse.nodered.org/u/plouc)\
**Replies:** 2\
**Last updated:** [6 March 2023 14:30 UTC](https://discourse.nodered.org/t/exec-node-connection-refused-in-service-mode-ok-when-lnode-red-launched-from-terminal/76163 "2023-03-06T14:30:00Z")

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Hello, I have a flow executing commands to pulseaudio on a raspberry pi. The flow works great when i launch node-red from the terminal (trough ssh), but when node red run as a service it is doing this error: " Comman…

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## [Enabling projects on an existing Node-Red instance](https://discourse.nodered.org/t/enabling-projects-on-an-existing-node-red-instance/76180)

<div class="topic-metadata">

**Author:** [@jw\_te\_r](https://discourse.nodered.org/u/jw_te_r)\
**Replies:** 0\
**Last updated:** [6 March 2023 14:22 UTC](https://discourse.nodered.org/t/enabling-projects-on-an-existing-node-red-instance/76180 "2023-03-06T14:22:36Z")

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I want to enable projects on an existing Node-Red platform. Everything seems to work, but my code doesn't arrive in my Github repo. In 'commit history' Node-Red keeps telling me 'Your local branch is not currently trac…

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## [Copy flow 2 into flow 1?](https://discourse.nodered.org/t/copy-flow-2-into-flow-1/76176)

<div class="topic-metadata">

**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 2\
**Last updated:** [6 March 2023 13:09 UTC](https://discourse.nodered.org/t/copy-flow-2-into-flow-1/76176 "2023-03-06T13:09:04Z")

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How do I copy everything in my Flow 2 to Flow 1?

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## [On Startup node not receiving initialisation data](https://discourse.nodered.org/t/on-startup-node-not-receiving-initialisation-data/76171)

<div class="topic-metadata">

**Author:** [@Darren](https://discourse.nodered.org/u/Darren)\
**Replies:** 2\
**Last updated:** [6 March 2023 12:36 UTC](https://discourse.nodered.org/t/on-startup-node-not-receiving-initialisation-data/76171 "2023-03-06T12:36:43Z")

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I've set a JSObject-generating node to generate "on startup" instead of "on message", as it was previously generating the same XML repeatedly and loading my Raspberry Pi (when the JSObject only needs generating once from…

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## [Ping 100+ PLC For Status](https://discourse.nodered.org/t/ping-100-plc-for-status/76154)

<div class="topic-metadata">

**Author:** [@dpatel2016](https://discourse.nodered.org/u/dpatel2016)\
**Replies:** 7\
**Last updated:** [6 March 2023 12:31 UTC](https://discourse.nodered.org/t/ping-100-plc-for-status/76154 "2023-03-06T12:31:35Z")

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I have 100+ PLCs on the network and would like to ping them to get online or offline status. I don’t need any other information. The ping node with an array of all IPs slows down the whole node red server. Is there any …

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## [Uibuilder with Android System WebView](https://discourse.nodered.org/t/uibuilder-with-android-system-webview/75901)

<div class="topic-metadata">

**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 20\
**Last updated:** [6 March 2023 10:35 UTC](https://discourse.nodered.org/t/uibuilder-with-android-system-webview/75901 "2023-03-06T10:35:26Z")

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I have a kiosk like software called wallpanel, which uses the above. It seems like uibulder doesn't always play nice with it, have you ever done any testing ? In particular I have not yet found a way to refresh the pag…

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## [Reset counter function](https://discourse.nodered.org/t/reset-counter-function/76160)

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**Author:** [@kelvin](https://discourse.nodered.org/u/kelvin)\
**Replies:** 2\
**Last updated:** [6 March 2023 07:07 UTC](https://discourse.nodered.org/t/reset-counter-function/76160 "2023-03-06T07:07:36Z")

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Hi, i how can i set when the number reach '10' then the next inject will be reset it and start from '0' ? \[{"id":"b45544f267d46e64","type":"tab","label":"Flow 6","disabled":false,"info":"","env":\[\]},{"id":"e9181172966c…

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## [Modbus RTU node red UART issue](https://discourse.nodered.org/t/modbus-rtu-node-red-uart-issue/75866)

<div class="topic-metadata">

**Author:** [@DSongra11\_forum.com](https://discourse.nodered.org/u/DSongra11_forum.com)\
**Replies:** 12\
**Last updated:** [6 March 2023 06:38 UTC](https://discourse.nodered.org/t/modbus-rtu-node-red-uart-issue/75866 "2023-03-06T06:38:32Z")

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Hello, I am working on Modbus RTU Serial UART node-red flow application. I am facing an issue after deploying the flow, the node-red application gets crashes and does not start back again. I have checked my IIOT device…

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## [Serial Port COM3 does not receive or send any thing](https://discourse.nodered.org/t/serial-port-com3-does-not-receive-or-send-any-thing/76113)

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**Author:** [@Student](https://discourse.nodered.org/u/Student)\
**Replies:** 11\
**Last updated:** [6 March 2023 02:49 UTC](https://discourse.nodered.org/t/serial-port-com3-does-not-receive-or-send-any-thing/76113 "2023-03-06T02:49:20Z")

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Hi! Please can someone help me. Only debug 10 displays the data, but debug 11 doesn't display any thing. My flow is as follows: Thank you very much for youy help

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## [Flex Server - node-red-contrib-iiot-opcua 4.1.2](https://discourse.nodered.org/t/flex-server-node-red-contrib-iiot-opcua-4-1-2/76158)

<div class="topic-metadata">

**Author:** [@basel](https://discourse.nodered.org/u/basel)\
**Replies:** 0\
**Last updated:** [6 March 2023 02:01 UTC](https://discourse.nodered.org/t/flex-server-node-red-contrib-iiot-opcua-4-1-2/76158 "2023-03-06T02:01:50Z")

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I have a problem with Flex Server - node-red-contrib-iiot-opcua 4.1.2 It never gets active, just appears as "waiting"

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## [Question about Alexa & Node-RED](https://discourse.nodered.org/t/question-about-alexa-node-red/76111)

<div class="topic-metadata">

**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 4\
**Last updated:** [5 March 2023 23:55 UTC](https://discourse.nodered.org/t/question-about-alexa-node-red/76111 "2023-03-05T23:55:40Z")

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I have just acquired an Alexa Echo Dot (got to keep up with the grandkids) so I thought I would integrate it into my node-RED controls. I have installed node-red-contrib-virtual-smart-home and node-red-contrib-alexa-rem…

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## [Using node-red with Home Assistant](https://discourse.nodered.org/t/using-node-red-with-home-assistant/76146)

<div class="topic-metadata">

**Author:** [@Lachimes29](https://discourse.nodered.org/u/Lachimes29)\
**Replies:** 2\
**Last updated:** [5 March 2023 21:44 UTC](https://discourse.nodered.org/t/using-node-red-with-home-assistant/76146 "2023-03-05T21:44:33Z")

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Hi all, I have a call service node that works when I hard code the value of a youtube video but when I try to have it obtain the value from a query it does not work. The value does exist and when I obtain payload.items\[…

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## [Write object to context variable](https://discourse.nodered.org/t/write-object-to-context-variable/76145)

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**Author:** [@widert](https://discourse.nodered.org/u/widert)\
**Replies:** 12\
**Last updated:** [5 March 2023 21:14 UTC](https://discourse.nodered.org/t/write-object-to-context-variable/76145 "2023-03-05T21:14:18Z")

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I have a MQTT message that comes in looking like this: topic: "zigbee2mqtt/lys/baderom/tak" payload: object brightness\_relay: 254 linkquality: 58 state: "OFF" state\_relay: "OFF" I am deducting the structure using the f…

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## [❓ Discussion: How do you test your flows?](https://discourse.nodered.org/t/discussion-how-do-you-test-your-flows/20061)

<div class="topic-metadata">

**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 23\
**Last updated:** [5 March 2023 21:04 UTC](https://discourse.nodered.org/t/discussion-how-do-you-test-your-flows/20061 "2023-03-05T21:04:23Z")

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I'm interested in getting some community feedback on the subject of testing your flows. More specifically, have you created a set of tests you can routinely run against your flows to verify they are working? Have you c…

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## [What URL to use for http request node?](https://discourse.nodered.org/t/what-url-to-use-for-http-request-node/76124)

<div class="topic-metadata">

**Author:** [@richiep](https://discourse.nodered.org/u/richiep)\
**Replies:** 4\
**Last updated:** [5 March 2023 20:03 UTC](https://discourse.nodered.org/t/what-url-to-use-for-http-request-node/76124 "2023-03-05T20:03:08Z")

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Hey All. First time working with JSON and I'm setting up a http request node but I don't know what URL to use. I'm working on a local network. The JSON I'm interested in is coming from a form on the dashboard and I'm t…

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## [Timestamp subtraction from msg objects](https://discourse.nodered.org/t/timestamp-subtraction-from-msg-objects/76133)

<div class="topic-metadata">

**Author:** [@Aaroneisele55](https://discourse.nodered.org/u/Aaroneisele55)\
**Replies:** 2\
**Last updated:** [5 March 2023 14:38 UTC](https://discourse.nodered.org/t/timestamp-subtraction-from-msg-objects/76133 "2023-03-05T14:38:52Z")

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Hello, I have the following problem: I have another flow created which returns JSON like this: {"payload":195,"topic":"/lights/Aaron/cmd","timestamp":1676613795211} With timestamp being the time in milliseconds since…

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## [Struggling with JSON Data](https://discourse.nodered.org/t/struggling-with-json-data/76138)

<div class="topic-metadata">

**Author:** [@richiep](https://discourse.nodered.org/u/richiep)\
**Replies:** 3\
**Last updated:** [5 March 2023 15:35 UTC](https://discourse.nodered.org/t/struggling-with-json-data/76138 "2023-03-05T15:35:30Z")

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I'm new to JSON and struggling. I have a dashboard form that collects an integer and stores it in JSON. I need to extract the integer so I can use it. I'm failing miserably. Please help Here's my flow \[ { …

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## [Hour meter without stopwatch](https://discourse.nodered.org/t/hour-meter-without-stopwatch/76077)

<div class="topic-metadata">

**Author:** [@jannis\_avstria](https://discourse.nodered.org/u/jannis_avstria)\
**Replies:** 10\
**Last updated:** [5 March 2023 15:25 UTC](https://discourse.nodered.org/t/hour-meter-without-stopwatch/76077 "2023-03-05T15:25:00Z")

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I'm new here - thanks for the indulgence I have a problem and need help. I'm looking for a way to record the switch-on time. However, it should not be a stopwatch function. Thank you for a support ein-aus-zeit.json (…

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## [\`SWITCH\` node question about options](https://discourse.nodered.org/t/switch-node-question-about-options/76086)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 27\
**Last updated:** [5 March 2023 13:48 UTC](https://discourse.nodered.org/t/switch-node-question-about-options/76086 "2023-03-05T13:48:53Z")

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This is about the SWITCH node and it's options. Ok, second attempt and I hope this effort is better than my other question I asked poorly. Say I have a message that is an object. eg: msg = {"payload":"this is the payl…

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