# Latest

**URL:** https://discourse.nodered.org/latest.md?page=518

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

**Page:** 519

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## [Best options to autorun a flow on RPi?](https://discourse.nodered.org/t/best-options-to-autorun-a-flow-on-rpi/66272)

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**Author:** [@EaB11](https://discourse.nodered.org/u/EaB11)\
**Replies:** 5\
**Last updated:** [11 August 2022 09:19 UTC](https://discourse.nodered.org/t/best-options-to-autorun-a-flow-on-rpi/66272 "2022-08-11T09:19:02Z")

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is there an efficient method to make a flow run on RPi immediately from bootup ? ideally without needing a full OS installed ? i was thinking it would be great if there was a utility that could make a RPi boot disk whic…

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## [Bigtimer challenge](https://discourse.nodered.org/t/bigtimer-challenge/66190)

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**Author:** [@cmartens](https://discourse.nodered.org/u/cmartens)\
**Replies:** 22\
**Last updated:** [10 August 2022 22:21 UTC](https://discourse.nodered.org/t/bigtimer-challenge/66190 "2022-08-10T22:21:05Z")

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Hi, I am using Nodered and Bigtimer for my irrigation. Everything is working fine. However I would like to display the date and time of the next run. I was hoping that this could be calculated based on the combination o…

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## [kevinGodell's node installation](https://discourse.nodered.org/t/kevingodells-node-installation/66207)

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**Author:** [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\
**Replies:** 2\
**Last updated:** [11 August 2022 08:28 UTC](https://discourse.nodered.org/t/kevingodells-node-installation/66207 "2022-08-11T08:28:41Z")

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@kevinGodell Hi Kevin, I installed last node-red's version V3. I have to install your nodes but searhing I came across with several version and way to do it. Just to be sure to install the last ones, could you please r…

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## [Persistent Client with Mosquitto not working as intended](https://discourse.nodered.org/t/persistent-client-with-mosquitto-not-working-as-intended/66278)

<div class="topic-metadata">

**Author:** [@maxw](https://discourse.nodered.org/u/maxw)\
**Replies:** 4\
**Last updated:** [11 August 2022 08:20 UTC](https://discourse.nodered.org/t/persistent-client-with-mosquitto-not-working-as-intended/66278 "2022-08-11T08:20:33Z")

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Hello, i've got a problem regarding persistent sessions when connecting from Node-RED to my Mosquitto broker. Im currently running Node-RED v2.2.2 and Nodejs v14.19.1 on my Raspberry Pi. The server running the mqtt.js-…

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## [How read the dynamic IP of a slave for setting dynamically server modbus/tcp](https://discourse.nodered.org/t/how-read-the-dynamic-ip-of-a-slave-for-setting-dynamically-server-modbus-tcp/66294)

<div class="topic-metadata">

**Author:** [@OscarVasta](https://discourse.nodered.org/u/OscarVasta)\
**Replies:** 1\
**Last updated:** [11 August 2022 07:13 UTC](https://discourse.nodered.org/t/how-read-the-dynamic-ip-of-a-slave-for-setting-dynamically-server-modbus-tcp/66294 "2022-08-11T07:13:57Z")

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Im tryng to link a industrial RTU whith GPRS sim to node-red by modbus/tcp but the slave change IP each time to start. Then cant set de server for any modbus-node. Any one can help me about a metode to read eny incoming …

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## [Dealing with payloads with different structures](https://discourse.nodered.org/t/dealing-with-payloads-with-different-structures/66258)

<div class="topic-metadata">

**Author:** [@leewil1](https://discourse.nodered.org/u/leewil1)\
**Replies:** 4\
**Last updated:** [11 August 2022 03:10 UTC](https://discourse.nodered.org/t/dealing-with-payloads-with-different-structures/66258 "2022-08-11T03:10:26Z")

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Hi all, The first week in using Node-RED and love it! quick question. I am using a building monitoring device that outputs a different object structure once a day to send up its battery readings however when that happe…

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## [Issue: new node properties don't show up after upgrade](https://discourse.nodered.org/t/issue-new-node-properties-dont-show-up-after-upgrade/66296)

<div class="topic-metadata">

**Author:** [@tve](https://discourse.nodered.org/u/tve)\
**Replies:** 8\
**Last updated:** [11 August 2022 02:50 UTC](https://discourse.nodered.org/t/issue-new-node-properties-dont-show-up-after-upgrade/66296 "2022-08-11T02:50:44Z")

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I've hit an issue where inconsistent stuff happens in my nodes after I add a new parameter and I tracked it down to the fact that existing nodes in flows don't get upgraded. Take a very simple node definition: RED.node…

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## [Audit log of who deployed flows](https://discourse.nodered.org/t/audit-log-of-who-deployed-flows/66302)

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**Author:** [@GregHNZ](https://discourse.nodered.org/u/GregHNZ)\
**Replies:** 1\
**Last updated:** [10 August 2022 23:51 UTC](https://discourse.nodered.org/t/audit-log-of-who-deployed-flows/66302 "2022-08-10T23:51:40Z")

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Hi We have a request from our SecOps team questioning whether it is possible to audit who deployed nodes, this is in the event a malicious action is performed so we can trace who did it. With Editor security enabled Se…

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## [ENOTEMPTY when installing node from palette since nodered 3.0 (directory not empty)](https://discourse.nodered.org/t/enotempty-when-installing-node-from-palette-since-nodered-3-0-directory-not-empty/65968)

<div class="topic-metadata">

**Author:** [@Einstein8854](https://discourse.nodered.org/u/Einstein8854)\
**Replies:** 22\
**Last updated:** [10 August 2022 22:25 UTC](https://discourse.nodered.org/t/enotempty-when-installing-node-from-palette-since-nodered-3-0-directory-not-empty/65968 "2022-08-10T22:25:40Z")

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hello, my english is bad... i have nodered in docker since the new version (3.0.0) i can't add new palets or update existing palet. i have this message in log :slight\_smile: 2022-08-03T11:41:30.188Z Install : node-r…

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## [Module Installation](https://discourse.nodered.org/t/module-installation/66299)

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**Author:** [@sn19](https://discourse.nodered.org/u/sn19)\
**Replies:** 1\
**Last updated:** [10 August 2022 20:44 UTC](https://discourse.nodered.org/t/module-installation/66299 "2022-08-10T20:44:32Z")

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Dear All Hello. I am working with a hardware which only supports a basic version of NODE RED (v1.1.2). I have in the past installed modules via memory card and flash drive onto my device. However now I want to make use …

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## [MQTT - Client to Cloud MQTT](https://discourse.nodered.org/t/mqtt-client-to-cloud-mqtt/66290)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 6\
**Last updated:** [10 August 2022 20:30 UTC](https://discourse.nodered.org/t/mqtt-client-to-cloud-mqtt/66290 "2022-08-10T20:30:49Z")

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Hi, On my Laptop I have node red running, I want t connect to oracle via MQTT. I installed mosquitto on the oracle instance. I have opened the firewall for port 8883 and 1883. I have tested this as I connect to another…

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## [Relative URLs with Template Node in macOS](https://discourse.nodered.org/t/relative-urls-with-template-node-in-macos/66297)

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**Author:** [@DanielEcheverri](https://discourse.nodered.org/u/DanielEcheverri)\
**Replies:** 1\
**Last updated:** [10 August 2022 20:23 UTC](https://discourse.nodered.org/t/relative-urls-with-template-node-in-macos/66297 "2022-08-10T20:23:40Z")

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Hi everyone. I have NodeRed v2.2.2 running in my Macbook. My flow has a template node that serves an HTML page (a Twine story in case you are familiar with it). I use NodeRed to mediate between an ESP32 and the content o…

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## [In node with timestamp](https://discourse.nodered.org/t/in-node-with-timestamp/66123)

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**Author:** [@melrose](https://discourse.nodered.org/u/melrose)\
**Replies:** 21\
**Last updated:** [10 August 2022 19:40 UTC](https://discourse.nodered.org/t/in-node-with-timestamp/66123 "2022-08-10T19:40:16Z")

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Hello, the input node shows me the last value. For debugging purposes, I need to know the timestamp, so that I can correlate sequence of incoming data. I need this info for every input node, to be able to debug issues …

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## [2 output HDMI with VLC + nodered](https://discourse.nodered.org/t/2-output-hdmi-with-vlc-nodered/66178)

<div class="topic-metadata">

**Author:** [@azertym](https://discourse.nodered.org/u/azertym)\
**Replies:** 4\
**Last updated:** [10 August 2022 18:52 UTC](https://discourse.nodered.org/t/2-output-hdmi-with-vlc-nodered/66178 "2022-08-10T18:52:00Z")

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Hi everybody, I have little question about node red and 2 HDMI I need to launch 2 videos on each port. Vidéo A on port 1 and Vidéo B on port 2. So i have loop on port A with this code : export DISPLAY=:0 && cvlc /hom…

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## [Error with exec command fired from Node-Red](https://discourse.nodered.org/t/error-with-exec-command-fired-from-node-red/66293)

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**Author:** [@Tapani](https://discourse.nodered.org/u/Tapani)\
**Replies:** 5\
**Last updated:** [10 August 2022 16:47 UTC](https://discourse.nodered.org/t/error-with-exec-command-fired-from-node-red/66293 "2022-08-10T16:47:29Z")

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I’m running Node-Red with Home Assistant on Raspberry Pi. From Node-Red I fire the the following command: ‘echo ds2482 0x18 \> /sys/bus/i2c/devices/i2c-1/new\_device’ to initialise 1-wire reading. Earlier this was work…

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## [Using chart.js to create bubble chart](https://discourse.nodered.org/t/using-chart-js-to-create-bubble-chart/66106)

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**Author:** [@xiaosong0612](https://discourse.nodered.org/u/xiaosong0612)\
**Replies:** 10\
**Last updated:** [10 August 2022 15:11 UTC](https://discourse.nodered.org/t/using-chart-js-to-create-bubble-chart/66106 "2022-08-10T15:11:30Z")

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I’m an absolute beginner using chart.js how to creat bubble chart? i want create bubble chart on http://localhost:1880/ui I want to get the x,y value through mqtt and mark the location on the bubble chart

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## [Is there a way to search for nodes with an error status?](https://discourse.nodered.org/t/is-there-a-way-to-search-for-nodes-with-an-error-status/65144)

<div class="topic-metadata">

**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 4\
**Last updated:** [10 August 2022 13:58 UTC](https://discourse.nodered.org/t/is-there-a-way-to-search-for-nodes-with-an-error-status/65144 "2022-08-10T13:58:51Z")

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I had a node that wasn't working, which I discovered just by the fact that my morning automation wasn't turning it off. I brought up the flow and discovered that it was in an error state. I have lots of flows, so I deci…

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## [Node-red-contrib-telegrambot quiz poll not work](https://discourse.nodered.org/t/node-red-contrib-telegrambot-quiz-poll-not-work/66276)

<div class="topic-metadata">

**Author:** [@skynet-cloud](https://discourse.nodered.org/u/skynet-cloud)\
**Replies:** 1\
**Last updated:** [10 August 2022 11:06 UTC](https://discourse.nodered.org/t/node-red-contrib-telegrambot-quiz-poll-not-work/66276 "2022-08-10T11:06:45Z")

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hi if use msg.payload.optional.type = "quiz" msg.payload.type = 'poll'; msg.payload.content = "What do you think?"; msg.payload.options = \["A", "B", "C" \]; // you can add optional arguments see // https://core.telegram…

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## [Modify default nodes palette](https://discourse.nodered.org/t/modify-default-nodes-palette/66275)

<div class="topic-metadata">

**Author:** [@alevher](https://discourse.nodered.org/u/alevher)\
**Replies:** 1\
**Last updated:** [10 August 2022 10:45 UTC](https://discourse.nodered.org/t/modify-default-nodes-palette/66275 "2022-08-10T10:45:39Z")

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Hello Everyone, i'd like to limit the default palette nodes to a subset of them but i'd like to do it not with the UI, is it possible to do it via settings file or in some other way? Thanks in advance!

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## [Tag a value for influxdb](https://discourse.nodered.org/t/tag-a-value-for-influxdb/66179)

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**Author:** [@chris35](https://discourse.nodered.org/u/chris35)\
**Replies:** 10\
**Last updated:** [10 August 2022 09:40 UTC](https://discourse.nodered.org/t/tag-a-value-for-influxdb/66179 "2022-08-10T09:40:00Z")

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Hi I have a latitude number and a longitude ; i want to store them in Influxdb in the same server and measurement But before I would like to tag them with "Lat" and "Long" How can i do this ? Thanks msg.payload = N…

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## [Wave not disply correctly](https://discourse.nodered.org/t/wave-not-disply-correctly/66260)

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**Author:** [@Kai](https://discourse.nodered.org/u/Kai)\
**Replies:** 10\
**Last updated:** [10 August 2022 09:34 UTC](https://discourse.nodered.org/t/wave-not-disply-correctly/66260 "2022-08-10T09:34:50Z")

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Hi, my {{unit}} variable doesnt work for wave, I was trying to set the gauge value by pass the msg.unit to my node and it works for gauge, donut and compass only doesnt work for wave type of gauge

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## [Setting the msg topic when the topic changes based on the input data](https://discourse.nodered.org/t/setting-the-msg-topic-when-the-topic-changes-based-on-the-input-data/66053)

<div class="topic-metadata">

**Author:** [@Christoff](https://discourse.nodered.org/u/Christoff)\
**Replies:** 7\
**Last updated:** [10 August 2022 09:25 UTC](https://discourse.nodered.org/t/setting-the-msg-topic-when-the-topic-changes-based-on-the-input-data/66053 "2022-08-10T09:25:21Z")

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Hi all. I've got some json data coming in via a http post. One of the paths I'd like to reference contains a unique ID that changes regularly. Is there any way to somehow reference that still so that I can format and st…

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## [Node Red warning messages](https://discourse.nodered.org/t/node-red-warning-messages/66200)

<div class="topic-metadata">

**Author:** [@wassa350](https://discourse.nodered.org/u/wassa350)\
**Replies:** 2\
**Last updated:** [10 August 2022 09:23 UTC](https://discourse.nodered.org/t/node-red-warning-messages/66200 "2022-08-10T09:23:44Z")

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Hi All, i have tried without success many nodes related to Gooogle. I am wanting to add to my current home climate flow an interface to my Google Home Mini, so that when a sensor senses an abnormal condition I get a ver…

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## [Safe the pdf on a USB stick](https://discourse.nodered.org/t/safe-the-pdf-on-a-usb-stick/66186)

<div class="topic-metadata">

**Author:** [@Mauri](https://discourse.nodered.org/u/Mauri)\
**Replies:** 5\
**Last updated:** [10 August 2022 08:26 UTC](https://discourse.nodered.org/t/safe-the-pdf-on-a-usb-stick/66186 "2022-08-10T08:26:11Z")

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Hello Community I can generate a pdf with node red. Now my question: can I save it to a USB stick with a node, or possibly via com port? My node red is installed on a Linux computer. I wanna save the pdf files in a usb…

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## [Having issues with axios getting and returning data in my custom node](https://discourse.nodered.org/t/having-issues-with-axios-getting-and-returning-data-in-my-custom-node/66252)

<div class="topic-metadata">

**Author:** [@MyRandomThoughts](https://discourse.nodered.org/u/MyRandomThoughts)\
**Replies:** 6\
**Last updated:** [10 August 2022 08:08 UTC](https://discourse.nodered.org/t/having-issues-with-axios-getting-and-returning-data-in-my-custom-node/66252 "2022-08-10T08:08:20Z")

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I am trying to use axios to call a URL and return its data. That part is working, but the ordering is not working when used as a function call. I am sure it's something simple, but I am not used to JavaScript. The cod…

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## [Speedtest node - "No server found, verify your proxy/network"](https://discourse.nodered.org/t/speedtest-node-no-server-found-verify-your-proxy-network/65315)

<div class="topic-metadata">

**Author:** [@DamianosS](https://discourse.nodered.org/u/DamianosS)\
**Replies:** 24\
**Last updated:** [10 August 2022 07:28 UTC](https://discourse.nodered.org/t/speedtest-node-no-server-found-verify-your-proxy-network/65315 "2022-08-10T07:28:02Z")

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Hi all, I'm encountering a strange behaviour of the node-red-contrib-speedtest-updated-node: I've put the node behind a cron-node to perform a speed test every full hour. Every time the speedtest node runs, it throws …

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## [OMRON FINS Reading REAL & STRING Data Types](https://discourse.nodered.org/t/omron-fins-reading-real-string-data-types/66038)

<div class="topic-metadata">

**Author:** [@mihaila-andreas](https://discourse.nodered.org/u/mihaila-andreas)\
**Replies:** 6\
**Last updated:** [10 August 2022 06:50 UTC](https://discourse.nodered.org/t/omron-fins-reading-real-string-data-types/66038 "2022-08-10T06:50:28Z")

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Hi there, Just wanted to know how I can read STRING and REAL data types via FINS. INT and BOOL are working fine. Do I need to parser it? Does somebody have got some example nodes? Best thanks in advance Andy

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## [How to start with D3.js basic example Line chart](https://discourse.nodered.org/t/how-to-start-with-d3-js-basic-example-line-chart/65907)

<div class="topic-metadata">

**Author:** [@Zupayruna1](https://discourse.nodered.org/u/Zupayruna1)\
**Replies:** 4\
**Last updated:** [10 August 2022 03:50 UTC](https://discourse.nodered.org/t/how-to-start-with-d3-js-basic-example-line-chart/65907 "2022-08-10T03:50:31Z")

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Hello people, how r u? Maybe u can help me, I was working to draw a basic chart with D3.js, I did many steps but maybe another friend have more experience with this. From this example dashboard tips d3.js . Until now, …

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## [Is it possible to pass on a 'default value for the Notification node with 'OK /cancel dialog with input'](https://discourse.nodered.org/t/is-it-possible-to-pass-on-a-default-value-for-the-notification-node-with-ok-cancel-dialog-with-input/58794)

<div class="topic-metadata">

**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 18\
**Last updated:** [10 August 2022 00:38 UTC](https://discourse.nodered.org/t/is-it-possible-to-pass-on-a-default-value-for-the-notification-node-with-ok-cancel-dialog-with-input/58794 "2022-08-10T00:38:40Z")

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Can I pass on a default value to appear in the text input field so that user can change if required or press enter to accept the default value ?

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## [Can a pipe and instrumentation diagram showing values etc. be made with the Dashboard?](https://discourse.nodered.org/t/can-a-pipe-and-instrumentation-diagram-showing-values-etc-be-made-with-the-dashboard/66248)

<div class="topic-metadata">

**Author:** [@theodor\_dreyer](https://discourse.nodered.org/u/theodor_dreyer)\
**Replies:** 2\
**Last updated:** [9 August 2022 23:42 UTC](https://discourse.nodered.org/t/can-a-pipe-and-instrumentation-diagram-showing-values-etc-be-made-with-the-dashboard/66248 "2022-08-09T23:42:41Z")

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I will use node-red to regulate mixing-loops etc. and would like to make a web-interface, like the examples below: I am thinking of placing Dashboard elements on top of a background image? Will this be easy og ne…

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