# Latest

**URL:** https://discourse.nodered.org/latest.md?page=574

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

**Page:** 575

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## [Autostart Node-Red ends up in endless loop?](https://discourse.nodered.org/t/autostart-node-red-ends-up-in-endless-loop/62311)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 1\
**Last updated:** [6 May 2022 22:10 UTC](https://discourse.nodered.org/t/autostart-node-red-ends-up-in-endless-loop/62311 "2022-05-06T22:10:52Z")

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Hi, I try to autostart Node-Red on my Windows Server 2016 Standard OS. So I created a CMD-File looking like this: If I either autostart or doubleclick the CMD-File it ends up in and endless loop: If I go to comm…

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## [Connecting seimens s7 with sql using node red](https://discourse.nodered.org/t/connecting-seimens-s7-with-sql-using-node-red/62294)

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**Author:** [@nadabnammar](https://discourse.nodered.org/u/nadabnammar)\
**Replies:** 6\
**Last updated:** [6 May 2022 22:05 UTC](https://discourse.nodered.org/t/connecting-seimens-s7-with-sql-using-node-red/62294 "2022-05-06T22:05:55Z")

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hi ! i want to connect between node red and MSSM (sql ) but i didnt know how to do could you help me please ?

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## [Some keyboard shortcuts not working after reload](https://discourse.nodered.org/t/some-keyboard-shortcuts-not-working-after-reload/62260)

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**Author:** [@hufftheweevil](https://discourse.nodered.org/u/hufftheweevil)\
**Replies:** 2\
**Last updated:** [6 May 2022 19:35 UTC](https://discourse.nodered.org/t/some-keyboard-shortcuts-not-working-after-reload/62260 "2022-05-06T19:35:33Z")

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I have the following keymap in my user file, as configured from the editor: { "core:enable-flow": { "scope": "\*", "key": "ctrl-shift-up" }, "core:disable-selected-nodes": { "scope": "\*", "key": "ctrl-down…

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## [How to get status on publish to a MQTT Out node?](https://discourse.nodered.org/t/how-to-get-status-on-publish-to-a-mqtt-out-node/62089)

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**Author:** [@GAdmiral](https://discourse.nodered.org/u/GAdmiral)\
**Replies:** 15\
**Last updated:** [6 May 2022 18:30 UTC](https://discourse.nodered.org/t/how-to-get-status-on-publish-to-a-mqtt-out-node/62089 "2022-05-06T18:30:05Z")

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I'm using the mqtt out node to send messages to an MQTT broker. I would like verify the status of each publish operation. Apologies for the Python code, but this is roughly what I would do outside of Node-RED: message…

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## [FYI - Raspberry Pi users - Starting with 2022-04-04 Bullseye no default user is created](https://discourse.nodered.org/t/fyi-raspberry-pi-users-starting-with-2022-04-04-bullseye-no-default-user-is-created/62308)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 0\
**Last updated:** [6 May 2022 18:20 UTC](https://discourse.nodered.org/t/fyi-raspberry-pi-users-starting-with-2022-04-04-bullseye-no-default-user-is-created/62308 "2022-05-06T18:20:34Z")

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Anyone using a Pi and wanting to install the latest release (2022-04-04 should read An update to Raspberry Pi OS Bullseye - Raspberry Pi There is no default user created anymore. The article expains what to do and there…

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## [Regex Invalid Regular Expression](https://discourse.nodered.org/t/regex-invalid-regular-expression/62303)

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**Author:** [@Mick](https://discourse.nodered.org/u/Mick)\
**Replies:** 2\
**Last updated:** [6 May 2022 17:36 UTC](https://discourse.nodered.org/t/regex-invalid-regular-expression/62303 "2022-05-06T17:36:50Z")

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I have a function I am writing to regex parse data between 2 strings. I am using a regex expression that I tested on Regex101 It seems to work well however I am getting an invalid expression error in the function …

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## [Can we use Mustache with the UI builder](https://discourse.nodered.org/t/can-we-use-mustache-with-the-ui-builder/62273)

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**Author:** [@armant](https://discourse.nodered.org/u/armant)\
**Replies:** 1\
**Last updated:** [6 May 2022 09:21 UTC](https://discourse.nodered.org/t/can-we-use-mustache-with-the-ui-builder/62273 "2022-05-06T09:21:51Z")

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Hi there, A bit new too Node-Red, I'm trying to access the msg.payload in the index.html inside the UI-builder node. There's a dropdown menu at the bottom right of the UI-builder's interface. So ie: UI-builder does…

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## [Call service attribute](https://discourse.nodered.org/t/call-service-attribute/62299)

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**Author:** [@etmomoabc](https://discourse.nodered.org/u/etmomoabc)\
**Replies:** 3\
**Last updated:** [6 May 2022 16:56 UTC](https://discourse.nodered.org/t/call-service-attribute/62299 "2022-05-06T16:56:28Z")

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Hi I need some help. I have connected to izone in HA but don't know how to call service , its attribute. Below is the entity and attribute is hvac\_modes . I want to call service fan\_only, or off. How can I call service…

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## [Send command to mqtt output after a function node](https://discourse.nodered.org/t/send-command-to-mqtt-output-after-a-function-node/62302)

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**Author:** [@mgfeal](https://discourse.nodered.org/u/mgfeal)\
**Replies:** 2\
**Last updated:** [6 May 2022 16:30 UTC](https://discourse.nodered.org/t/send-command-to-mqtt-output-after-a-function-node/62302 "2022-05-06T16:30:36Z")

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Hi, I need to process the msg.consumototal that my function receives. I read and process the msg.consumototal value and I want to send a different mqtt command depending on the value that msg has. MQTT commands: …

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## [Keep switch UI switch state in sync with external triggers](https://discourse.nodered.org/t/keep-switch-ui-switch-state-in-sync-with-external-triggers/62198)

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**Author:** [@Tomadoggy](https://discourse.nodered.org/u/Tomadoggy)\
**Replies:** 8\
**Last updated:** [6 May 2022 15:59 UTC](https://discourse.nodered.org/t/keep-switch-ui-switch-state-in-sync-with-external-triggers/62198 "2022-05-06T15:59:42Z")

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Back again...this is a continuation of a topic from over a year ago...for reference: (https://discourse.nodered.org/t/have-objects-in-msg-need-to-take-actions-based-on-one-of-the-payload-codes/37451) I stepped away fro…

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## [Adjust new junction node](https://discourse.nodered.org/t/adjust-new-junction-node/62279)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [6 May 2022 14:48 UTC](https://discourse.nodered.org/t/adjust-new-junction-node/62279 "2022-05-06T14:48:26Z")

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As detailed in the 3.0.0.-beta1 thread, the new junction node has a few issues in the editing/adding wires to it This is a request to change it from a single dot to a double dot if the issues prove too difficult to reso…

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## [Debug shows JSON but MQTT doesn't trigger](https://discourse.nodered.org/t/debug-shows-json-but-mqtt-doesnt-trigger/62295)

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**Author:** [@themed00](https://discourse.nodered.org/u/themed00)\
**Replies:** 7\
**Last updated:** [6 May 2022 14:33 UTC](https://discourse.nodered.org/t/debug-shows-json-but-mqtt-doesnt-trigger/62295 "2022-05-06T14:33:35Z")

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Hey, I've had a few MQTTs IN and they work great. But now, I'm sending via a online PHP Site a MQTT Message to one of my nodes. When I'm Sending an String for example "start" it works perfectly. But when I'm sending …

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## [Join two flows to one](https://discourse.nodered.org/t/join-two-flows-to-one/62285)

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**Author:** [@dick](https://discourse.nodered.org/u/dick)\
**Replies:** 5\
**Last updated:** [6 May 2022 14:26 UTC](https://discourse.nodered.org/t/join-two-flows-to-one/62285 "2022-05-06T14:26:05Z")

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Hello, Is there a simple manner two combines two flows. I have flow A and flow B How to combine this to C as a combination of A and B? Dick

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## [Add a way to reset the new debug node counter (v3 feature) via a msg property](https://discourse.nodered.org/t/add-a-way-to-reset-the-new-debug-node-counter-v3-feature-via-a-msg-property/62270)

<div class="topic-metadata">

**Author:** [@Rapejim](https://discourse.nodered.org/u/Rapejim)\
**Replies:** 11\
**Last updated:** [6 May 2022 12:28 UTC](https://discourse.nodered.org/t/add-a-way-to-reset-the-new-debug-node-counter-v3-feature-via-a-msg-property/62270 "2022-05-06T12:28:08Z")

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The new feature (message counter as status) of debug node in 3.0.0 beta 1 is awesome but we can't reset it to 0. Maybe with a "msg.reset" input like at delay node or join node... :stuck\_out\_tongue\_winking\_eye: Thanks!! …

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## [I cant convert HTML to PDF or Print the HTML content](https://discourse.nodered.org/t/i-cant-convert-html-to-pdf-or-print-the-html-content/62163)

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**Author:** [@fireboyff](https://discourse.nodered.org/u/fireboyff)\
**Replies:** 3\
**Last updated:** [6 May 2022 10:32 UTC](https://discourse.nodered.org/t/i-cant-convert-html-to-pdf-or-print-the-html-content/62163 "2022-05-06T10:32:20Z")

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Hi I've been trying to convert HTML content that is created in my flow to a PDF for days. Unfortunately, all attempts have failed. I also display this HTML content in the dashboard in a Ui\_Tamplet, it would also be eno…

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## [Creating a node for math calculations with different inputs](https://discourse.nodered.org/t/creating-a-node-for-math-calculations-with-different-inputs/62253)

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**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 4\
**Last updated:** [6 May 2022 08:23 UTC](https://discourse.nodered.org/t/creating-a-node-for-math-calculations-with-different-inputs/62253 "2022-05-06T08:23:16Z")

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Hey , this is probably out of my league, but when I think of something I tend to dwell on it. So some know I'm doing different steps in Node red to control my brewery. I am now working on setting up Pressure transducer…

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## [Not sending an msg.payload in function node](https://discourse.nodered.org/t/not-sending-an-msg-payload-in-function-node/62266)

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**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 3\
**Last updated:** [6 May 2022 07:29 UTC](https://discourse.nodered.org/t/not-sending-an-msg-payload-in-function-node/62266 "2022-05-06T07:29:21Z")

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I would know if it's possible to send each 90 pulses a msg.payload. So the other 89 pulses no msg.payload to the next node

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## [Loop of an array for multiple values](https://discourse.nodered.org/t/loop-of-an-array-for-multiple-values/62234)

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**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 6\
**Last updated:** [6 May 2022 07:07 UTC](https://discourse.nodered.org/t/loop-of-an-array-for-multiple-values/62234 "2022-05-06T07:07:12Z")

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Hello, I have an array of 90 values and know I want to calculate the avarage value of all that values. Is it possible to write it with a loop? How would you do it?

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## [Communication netlink+ profibus with 4siemens s7-300 2DP](https://discourse.nodered.org/t/communication-netlink-profibus-with-4siemens-s7-300-2dp/62214)

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**Author:** [@dagard23](https://discourse.nodered.org/u/dagard23)\
**Replies:** 8\
**Last updated:** [6 May 2022 06:57 UTC](https://discourse.nodered.org/t/communication-netlink-profibus-with-4siemens-s7-300-2dp/62214 "2022-05-06T06:57:22Z")

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hello, I want to recover information via siemens s7-300 controllers in profibus network, I am connected with netlink but impossible to define on which PLC of the profibus network I can fetch the information with the s7-c…

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## [Momentary toggle button](https://discourse.nodered.org/t/momentary-toggle-button/62256)

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**Author:** [@alexander77](https://discourse.nodered.org/u/alexander77)\
**Replies:** 2\
**Last updated:** [6 May 2022 00:29 UTC](https://discourse.nodered.org/t/momentary-toggle-button/62256 "2022-05-06T00:29:20Z")

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Hi, i found this flow here: https://flows.nodered.org/flow/badf32e71913b09a2d8e2488a1b101a5 Great, a mouse-down and a mouse-up output, perfect for the needs of buttons to control a PTZ-Camera. Works great with one bu…

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## [Sending data via 4g/narrowband?](https://discourse.nodered.org/t/sending-data-via-4g-narrowband/62250)

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**Author:** [@Manuel\_o](https://discourse.nodered.org/u/Manuel_o)\
**Replies:** 6\
**Last updated:** [5 May 2022 19:42 UTC](https://discourse.nodered.org/t/sending-data-via-4g-narrowband/62250 "2022-05-05T19:42:47Z")

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Hello friends. I am coding rn my project an love node-red! I have a general question respectively vagueness about "the way" to send my data to my webserver. It is essential that i am independently from the local networ…

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## [My first project. Control a pump via modbus tcp](https://discourse.nodered.org/t/my-first-project-control-a-pump-via-modbus-tcp/62144)

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**Author:** [@Manuel\_o](https://discourse.nodered.org/u/Manuel_o)\
**Replies:** 2\
**Last updated:** [5 May 2022 19:27 UTC](https://discourse.nodered.org/t/my-first-project-control-a-pump-via-modbus-tcp/62144 "2022-05-05T19:27:28Z")

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Hello friends Since i already read much about node-red i am confident enough to start my project. To formulate it simple: I want to read and control 2 of my dosing pumps via a webserver. They can be fired via modbus tc…

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## [How to filter a table](https://discourse.nodered.org/t/how-to-filter-a-table/62133)

<div class="topic-metadata">

**Author:** [@alexback](https://discourse.nodered.org/u/alexback)\
**Replies:** 7\
**Last updated:** [5 May 2022 17:08 UTC](https://discourse.nodered.org/t/how-to-filter-a-table/62133 "2022-05-05T17:08:01Z")

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hi, i am new to mongodb and node red so I need help. let's suggest we have a full table (e.g: name, age, subject) in mongodb which is installed to pi4 and according to columns I made dropdowns that has all choices (name…

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## [Need to see serial port data](https://discourse.nodered.org/t/need-to-see-serial-port-data/61914)

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**Author:** [@dzairo](https://discourse.nodered.org/u/dzairo)\
**Replies:** 10\
**Last updated:** [5 May 2022 16:09 UTC](https://discourse.nodered.org/t/need-to-see-serial-port-data/61914 "2022-05-05T16:09:22Z")

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Hi all. I need see what my ESP32 send to serial port, there are lots of lines string. is there any node to see it ? all my string are end with \\n easy solution if possible , not complicated .. any idea?

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## [EACCES can't run ping command](https://discourse.nodered.org/t/eacces-cant-run-ping-command/62189)

<div class="topic-metadata">

**Author:** [@psalibe](https://discourse.nodered.org/u/psalibe)\
**Replies:** 5\
**Last updated:** [5 May 2022 16:04 UTC](https://discourse.nodered.org/t/eacces-cant-run-ping-command/62189 "2022-05-05T16:04:26Z")

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I am newly running Node-Red v2.2.2 on Ubuntu 18.04.6 LTS running on an OnLogic Panel PC. Prior to this, Node-Red was running on the Linux side of our on-board PLC and we had no problems with ping. Since moving to the Pan…

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## [Getting machine output lines printed in page on ip:port into Nodred](https://discourse.nodered.org/t/getting-machine-output-lines-printed-in-page-on-ip-port-into-nodred/62240)

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**Author:** [@Riekus](https://discourse.nodered.org/u/Riekus)\
**Replies:** 4\
**Last updated:** [5 May 2022 15:29 UTC](https://discourse.nodered.org/t/getting-machine-output-lines-printed-in-page-on-ip-port-into-nodred/62240 "2022-05-05T15:29:58Z")

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Hi Guys, For my consulting job I was at an interesting company yesterday where they are trying to reverse engineer the 'communication channel' of a wire EDM machine. They were pretty limited in their abilities programm…

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## [Quick thought about feature requests tag](https://discourse.nodered.org/t/quick-thought-about-feature-requests-tag/62238)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 0\
**Last updated:** [5 May 2022 13:55 UTC](https://discourse.nodered.org/t/quick-thought-about-feature-requests-tag/62238 "2022-05-05T13:55:37Z")

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Would it be worth having a "On the backlog" tag so that feature requests already under consideration can be tagged? Might help reduce the number of repeat answers for common requests. Just a thought anyway.

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## [Node-red to influxdb atlas scientific](https://discourse.nodered.org/t/node-red-to-influxdb-atlas-scientific/62114)

<div class="topic-metadata">

**Author:** [@btbr](https://discourse.nodered.org/u/btbr)\
**Replies:** 7\
**Last updated:** [5 May 2022 13:53 UTC](https://discourse.nodered.org/t/node-red-to-influxdb-atlas-scientific/62114 "2022-05-05T13:53:34Z")

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Hello everyone. I am a three week in noobs so please be patient if I'm a bit slow. I have data from two Atlas Scientific sensors coming into node red through MQTT to go to Influxdb. The value field was a string, not a n…

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## [Communicate between UI and MQTT](https://discourse.nodered.org/t/communicate-between-ui-and-mqtt/62228)

<div class="topic-metadata">

**Author:** [@emnabk\_12](https://discourse.nodered.org/u/emnabk_12)\
**Replies:** 1\
**Last updated:** [5 May 2022 13:42 UTC](https://discourse.nodered.org/t/communicate-between-ui-and-mqtt/62228 "2022-05-05T13:42:14Z")

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Hello all, I want to send a payload (for exemple : true) to a uibilder node and based on that payload, I want the javascript code inside the uibuilder to read it and use a condition on it. If I have to use socket, how d…

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## [Merge Node-red-contrib-flow-manager with Projects feature](https://discourse.nodered.org/t/merge-node-red-contrib-flow-manager-with-projects-feature/62236)

<div class="topic-metadata">

**Author:** [@Barbudor](https://discourse.nodered.org/u/Barbudor)\
**Replies:** 1\
**Last updated:** [5 May 2022 13:32 UTC](https://discourse.nodered.org/t/merge-node-red-contrib-flow-manager-with-projects-feature/62236 "2022-05-05T13:32:08Z")

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Hi I just started to use the Project feature to work with Github to save and manage flows development. I trust integrating source revision inside the editor is absolutely great, especially when you run Node-RED form a d…

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