# Latest

**URL:** https://discourse.nodered.org/latest.md?page=605

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

**Page:** 606

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## [Flow stopped due to missing node types. npm](https://discourse.nodered.org/t/flow-stopped-due-to-missing-node-types-npm/60040)

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**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 2\
**Last updated:** [18 March 2022 16:14 UTC](https://discourse.nodered.org/t/flow-stopped-due-to-missing-node-types-npm/60040 "2022-03-18T16:14:33Z")

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Rebooted my Windows computer and was met with this when restarting. I have seen this error before with other nodes and you can usually install them and get running again, but this time I am stumped.... How can npm be mi…

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## [Why i get error if I am using const?](https://discourse.nodered.org/t/why-i-get-error-if-i-am-using-const/60036)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 16\
**Last updated:** [18 March 2022 14:14 UTC](https://discourse.nodered.org/t/why-i-get-error-if-i-am-using-const/60036 "2022-03-18T14:14:13Z")

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I get this error in module after node-red upgrade 'const' is available in es6 (use 'esversion 6') or mozilla js extensions (use moz) pls help me

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## [Node-red basic purpose](https://discourse.nodered.org/t/node-red-basic-purpose/60022)

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**Author:** [@usmanEmder](https://discourse.nodered.org/u/usmanEmder)\
**Replies:** 3\
**Last updated:** [18 March 2022 12:47 UTC](https://discourse.nodered.org/t/node-red-basic-purpose/60022 "2022-03-18T12:47:43Z")

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Is Node-RED a supporting tool for programming as well as communication?

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## [Add up numbers in a message](https://discourse.nodered.org/t/add-up-numbers-in-a-message/60034)

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**Author:** [@rubenbraekman](https://discourse.nodered.org/u/rubenbraekman)\
**Replies:** 2\
**Last updated:** [18 March 2022 12:44 UTC](https://discourse.nodered.org/t/add-up-numbers-in-a-message/60034 "2022-03-18T12:44:32Z")

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Hey I'm a node-red noob, I need to add up the numbers in blue but I'm not sure how. It's probable pretty simple.

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## [Possible bug with node.status method](https://discourse.nodered.org/t/possible-bug-with-node-status-method/59890)

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**Author:** [@hkayan](https://discourse.nodered.org/u/hkayan)\
**Replies:** 12\
**Last updated:** [18 March 2022 11:55 UTC](https://discourse.nodered.org/t/possible-bug-with-node-status-method/59890 "2022-03-18T11:55:00Z")

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I change node.status based on the emitted event as seen below: const STOPSCAN = () =\> { node.status( { fill: "red", shape: "dot", text: "Scan stopped." } ); node.log("ding ding") }; noble.on('scanStop', STOPSCAN); …

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## [Access Android phone sensors](https://discourse.nodered.org/t/access-android-phone-sensors/60024)

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**Author:** [@ilse.markert](https://discourse.nodered.org/u/ilse.markert)\
**Replies:** 1\
**Last updated:** [18 March 2022 11:24 UTC](https://discourse.nodered.org/t/access-android-phone-sensors/60024 "2022-03-18T11:24:46Z")

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Hi, I just integrated an old smartphone into my project to use as a camera live feed. It works fine, but a while ago I saw a video of someone installing node red on android and accessing the various sensors of the phone…

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## [Communicate with printer](https://discourse.nodered.org/t/communicate-with-printer/10685)

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**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 34\
**Last updated:** [18 March 2022 10:55 UTC](https://discourse.nodered.org/t/communicate-with-printer/10685 "2022-03-18T10:55:22Z")

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how can i connect to codex printer using IP address and communicate with it?? i don't know wich node i have to use in this case!! Thanks in advance.

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## [Watch node - add option to wait till file write completion](https://discourse.nodered.org/t/watch-node-add-option-to-wait-till-file-write-completion/59999)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 4\
**Last updated:** [18 March 2022 10:13 UTC](https://discourse.nodered.org/t/watch-node-add-option-to-wait-till-file-write-completion/59999 "2022-03-18T10:13:11Z")

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The watch node may fire multiple times during the writing of a file. This means that it is often (very often in my experience) necessary to follow the watch node with a Trigger to delay the message till the write has fi…

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## [Not understanding how to Format a flow (?) on the final client HTML page](https://discourse.nodered.org/t/not-understanding-how-to-format-a-flow-on-the-final-client-html-page/60012)

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**Author:** [@bxdobs](https://discourse.nodered.org/u/bxdobs)\
**Replies:** 1\
**Last updated:** [18 March 2022 08:54 UTC](https://discourse.nodered.org/t/not-understanding-how-to-format-a-flow-on-the-final-client-html-page/60012 "2022-03-18T08:54:54Z")

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Newby with node-red ... I have a Python Process running on a Pi 3b that - emails; IP, Temperature (CPU & Room), Door State (open/closed) and 3 on/off AC power switches ... this is located up on a mountain top ... current…

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## [Is it possible to communicate with ethernet global data (EGD)](https://discourse.nodered.org/t/is-it-possible-to-communicate-with-ethernet-global-data-egd/59994)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 3\
**Last updated:** [18 March 2022 08:10 UTC](https://discourse.nodered.org/t/is-it-possible-to-communicate-with-ethernet-global-data-egd/59994 "2022-03-18T08:10:24Z")

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I have reference discus about this topic. Is it possible with node.js module or not ? I share link below. Cheers

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## [Automate Dashboard node cloning](https://discourse.nodered.org/t/automate-dashboard-node-cloning/60013)

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**Author:** [@m\_elias](https://discourse.nodered.org/u/m_elias)\
**Replies:** 0\
**Last updated:** [18 March 2022 03:57 UTC](https://discourse.nodered.org/t/automate-dashboard-node-cloning/60013 "2022-03-18T03:57:07Z")

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I've setup this group of nodes/flows to process MQTT and Dashboard payloads for smart sockets running Tasmota. Now I'd like to clone the group for each different socket without having to edit all the nodes. I've tried to…

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## [Do we even need UI frameworks any more?!](https://discourse.nodered.org/t/do-we-even-need-ui-frameworks-any-more/60005)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 3\
**Last updated:** [18 March 2022 02:52 UTC](https://discourse.nodered.org/t/do-we-even-need-ui-frameworks-any-more/60005 "2022-03-18T02:52:24Z")

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Hi all, just wanting to share a bit about some experiments I've been doing. Here are some buzzwords for you :grinning: Web Components JavaScript Modules Dynamic Import import(...) DOM shadowRoot Enough to make anyon…

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## [How can I unit test created UI Dashboard widget node?](https://discourse.nodered.org/t/how-can-i-unit-test-created-ui-dashboard-widget-node/60010)

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**Author:** [@studiobox](https://discourse.nodered.org/u/studiobox)\
**Replies:** 0\
**Last updated:** [18 March 2022 01:55 UTC](https://discourse.nodered.org/t/how-can-i-unit-test-created-ui-dashboard-widget-node/60010 "2022-03-18T01:55:45Z")

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Hi, :blush: I have create new UI Dashboard widget node. But I have some problem about unit test. In my new UI Dashboard widget node main function, there are require checked about node-red-dashboard. See below, functio…

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## [Text adjustment from template dashboard](https://discourse.nodered.org/t/text-adjustment-from-template-dashboard/59962)

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**Author:** [@nightmareside15](https://discourse.nodered.org/u/nightmareside15)\
**Replies:** 6\
**Last updated:** [18 March 2022 01:27 UTC](https://discourse.nodered.org/t/text-adjustment-from-template-dashboard/59962 "2022-03-18T01:27:56Z")

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Hi! I would like to know how to adjust my text in dashboard using the template. I managed to do it on cards but I want both label and value has a different size on this matter. I tried using both the template along with…

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## [Connect mqtt-in and mqtt-out in one flow to request data and return it](https://discourse.nodered.org/t/connect-mqtt-in-and-mqtt-out-in-one-flow-to-request-data-and-return-it/59960)

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**Author:** [@vaites](https://discourse.nodered.org/u/vaites)\
**Replies:** 7\
**Last updated:** [17 March 2022 18:40 UTC](https://discourse.nodered.org/t/connect-mqtt-in-and-mqtt-out-in-one-flow-to-request-data-and-return-it/59960 "2022-03-17T18:40:52Z")

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I'm trying to get data from a Dyson fan that uses mqtt. I can connect to the device and I have two flows: http-in \> mqtt-out that send the request for data mqtt-in \> debug that displays the data The problem is how to …

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## [Using a watch node](https://discourse.nodered.org/t/using-a-watch-node/59968)

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**Author:** [@milner236](https://discourse.nodered.org/u/milner236)\
**Replies:** 20\
**Last updated:** [17 March 2022 21:42 UTC](https://discourse.nodered.org/t/using-a-watch-node/59968 "2022-03-17T21:42:57Z")

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Hello everyone. In most of my flows I use a watch node to watch for excel files and read their content. However, the watch nodes seem to work best if I cut and paste the file to the watched folder. If I copy and paste…

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## [Code issues with Node-Red and ESP-01](https://discourse.nodered.org/t/code-issues-with-node-red-and-esp-01/59735)

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**Author:** [@MrDoggss](https://discourse.nodered.org/u/MrDoggss)\
**Replies:** 8\
**Last updated:** [17 March 2022 21:10 UTC](https://discourse.nodered.org/t/code-issues-with-node-red-and-esp-01/59735 "2022-03-17T21:10:22Z")

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So I had someone write me some Arduino sketches, ESP-01 code, and a Node Red interface. I need to change a few things, but I want to make sure I don't completely screw this up. There are 6 motor/motor controller/AS5600 c…

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## [Getting Data from a barcode scanner into Node Red](https://discourse.nodered.org/t/getting-data-from-a-barcode-scanner-into-node-red/914)

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**Author:** [@YT2310](https://discourse.nodered.org/u/YT2310)\
**Replies:** 34\
**Last updated:** [17 March 2022 20:55 UTC](https://discourse.nodered.org/t/getting-data-from-a-barcode-scanner-into-node-red/914 "2022-03-17T20:55:38Z")

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Hello everybody, for my home office, i use a Raspberry Pi with Node Red. This works easiely. But as a next step I wanted to use a barcode scanner to scan some code into Node Red, as a kind of instruction code. But my …

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## [Henex BarCode / QR Code Scanner Interface on Serial Port not working](https://discourse.nodered.org/t/henex-barcode-qr-code-scanner-interface-on-serial-port-not-working/59669)

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**Author:** [@saxenaramesh](https://discourse.nodered.org/u/saxenaramesh)\
**Replies:** 9\
**Last updated:** [17 March 2022 20:53 UTC](https://discourse.nodered.org/t/henex-barcode-qr-code-scanner-interface-on-serial-port-not-working/59669 "2022-03-17T20:53:25Z")

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I am trying to connect a bar code scanner to Node Red on Serial Port. Scanner : Make: Henex, Model: HC3208R This scanner is a wireless type. We need to use its wireless dongle at USB port and then scanner should work w…

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## [Unable to filter arrays using JSON path syntax in function node](https://discourse.nodered.org/t/unable-to-filter-arrays-using-json-path-syntax-in-function-node/59938)

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**Author:** [@dubnemo](https://discourse.nodered.org/u/dubnemo)\
**Replies:** 11\
**Last updated:** [17 March 2022 20:52 UTC](https://discourse.nodered.org/t/unable-to-filter-arrays-using-json-path-syntax-in-function-node/59938 "2022-03-17T20:52:35Z")

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Similar to this use case, I need to filter an array for a specific property value in the array. msg.payload.store.book\[?(@.price\<10)\] msg.payload.$.phoneNumbers\[?(@.type=='iPhone')\].number Where 10 or iPhone comes fr…

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## [Flow stopped due to missing node types](https://discourse.nodered.org/t/flow-stopped-due-to-missing-node-types/59998)

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**Author:** [@QGIO](https://discourse.nodered.org/u/QGIO)\
**Replies:** 2\
**Last updated:** [17 March 2022 17:48 UTC](https://discourse.nodered.org/t/flow-stopped-due-to-missing-node-types/59998 "2022-03-17T17:48:42Z")

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I have this error. Please help me to restore. Many thanks

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## [Filtering of the same messages](https://discourse.nodered.org/t/filtering-of-the-same-messages/59862)

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**Author:** [@FrantaD](https://discourse.nodered.org/u/FrantaD)\
**Replies:** 20\
**Last updated:** [17 March 2022 17:26 UTC](https://discourse.nodered.org/t/filtering-of-the-same-messages/59862 "2022-03-17T17:26:15Z")

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Hi, I use Nodered as a graphic interface for PLC. Communication between the PLC and Nodered is via EtherNet/IP (cyclic reading of information every 500ms). I have two variables BOOL and INTEGER. I send their status to t…

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## [Debug node store somewhere and use space on sd card?](https://discourse.nodered.org/t/debug-node-store-somewhere-and-use-space-on-sd-card/59856)

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**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 24\
**Last updated:** [17 March 2022 17:24 UTC](https://discourse.nodered.org/t/debug-node-store-somewhere-and-use-space-on-sd-card/59856 "2022-03-17T17:24:45Z")

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hello, I have the issue, that I run out of space on my sd card wit hraspberry. I have 16GB card, it happens after I added smartmeter to read the IR from my smartmeter at home. I put a debug node behind it and didnt dele…

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## [Intro to JSON for Node-RED video](https://discourse.nodered.org/t/intro-to-json-for-node-red-video/59997)

<div class="topic-metadata">

**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 5\
**Last updated:** [17 March 2022 17:15 UTC](https://discourse.nodered.org/t/intro-to-json-for-node-red-video/59997 "2022-03-17T17:15:02Z")

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Little bit of a proud Dad moment here... and also a little ashamed... My son has just finished off his latest Node-RED video. He wrote the script after seeing me struggle to build a JSON payload in a func…

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## [COM Port - Access Denied](https://discourse.nodered.org/t/com-port-access-denied/59642)

<div class="topic-metadata">

**Author:** [@rayank97](https://discourse.nodered.org/u/rayank97)\
**Replies:** 6\
**Last updated:** [17 March 2022 16:21 UTC](https://discourse.nodered.org/t/com-port-access-denied/59642 "2022-03-17T16:21:25Z")

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Hello all, I'm having what seems to be a known issue, but all the recommended troubleshooting steps have failed. I'm running a very simple flow (which worked fine 2 weeks ago), which basically sends an input via Serial …

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## [ServoFirmata - Arduino - Not Working](https://discourse.nodered.org/t/servofirmata-arduino-not-working/59620)

<div class="topic-metadata">

**Author:** [@rayank97](https://discourse.nodered.org/u/rayank97)\
**Replies:** 3\
**Last updated:** [17 March 2022 16:17 UTC](https://discourse.nodered.org/t/servofirmata-arduino-not-working/59620 "2022-03-17T16:17:21Z")

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Hello all, I'm running Firmata on my Arduino UNO to control servos. Up until now, I've been running the StandardFirmata sketch. Works fine, but I decided I wanted to use the ServoFirmata sketch since it's less code and …

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## [Tcp in /tcp out over Internet](https://discourse.nodered.org/t/tcp-in-tcp-out-over-internet/59992)

<div class="topic-metadata">

**Author:** [@Juhani](https://discourse.nodered.org/u/Juhani)\
**Replies:** 2\
**Last updated:** [17 March 2022 15:52 UTC](https://discourse.nodered.org/t/tcp-in-tcp-out-over-internet/59992 "2022-03-17T15:52:41Z")

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Hi, Can someone pls advice how insecure / secure is to connect 2 node-reds together over Internet. My plan is quite simple, I need to send temperature sensor value from one place ( domain ) to another place ( domain ) an…

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## [TypeError: Variable is not a constructor](https://discourse.nodered.org/t/typeerror-variable-is-not-a-constructor/59682)

<div class="topic-metadata">

**Author:** [@ibejtm](https://discourse.nodered.org/u/ibejtm)\
**Replies:** 14\
**Last updated:** [17 March 2022 14:48 UTC](https://discourse.nodered.org/t/typeerror-variable-is-not-a-constructor/59682 "2022-03-17T14:48:17Z")

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Hey! I'm pretty new to Node-RED (and Node.JS), but have been loving using it for some home automations. My latest project is to pull hourly meter readings from the power company via an API that they provide. Someone else…

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## [Change dashboard appearance](https://discourse.nodered.org/t/change-dashboard-appearance/59889)

<div class="topic-metadata">

**Author:** [@Olivia](https://discourse.nodered.org/u/Olivia)\
**Replies:** 4\
**Last updated:** [17 March 2022 13:14 UTC](https://discourse.nodered.org/t/change-dashboard-appearance/59889 "2022-03-17T13:14:01Z")

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Hello everyone, does anyone know it its possible to change the dashboard appearance outside of the nodered settings. for instance with a colorpicker in the dashboard or somth like that ? Thanksss

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## [Pass different msg type to SQL node](https://discourse.nodered.org/t/pass-different-msg-type-to-sql-node/59934)

<div class="topic-metadata">

**Author:** [@QGIO](https://discourse.nodered.org/u/QGIO)\
**Replies:** 7\
**Last updated:** [17 March 2022 10:00 UTC](https://discourse.nodered.org/t/pass-different-msg-type-to-sql-node/59934 "2022-03-17T10:00:30Z")

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Hello forum, I have in a flow these data: I want to send both to SQL node in order to make a query to insert both information into a table. Could you suggest me the way to do this? Should I convert the array to obj…

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