# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1334

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

**Page:** 1335

---

## [Can any one help on embedding node-red in java process](https://discourse.nodered.org/t/can-any-one-help-on-embedding-node-red-in-java-process/3856)

<div class="topic-metadata">

**Author:** [@shwetha](https://discourse.nodered.org/u/shwetha)\
**Replies:** 6\
**Last updated:** [3 December 2018 11:01 UTC](https://discourse.nodered.org/t/can-any-one-help-on-embedding-node-red-in-java-process/3856 "2018-12-03T11:01:23Z")

</div>

I am new to Node.js/Node-RED. we have a requirement where we need to embed node-RED modules under java process. From some blog i could understand that J2V8 make it possible to run Node.js and JVM in a single process. S…

---

## [Change page on specific client](https://discourse.nodered.org/t/change-page-on-specific-client/6047)

<div class="topic-metadata">

**Author:** [@martinschki](https://discourse.nodered.org/u/martinschki)\
**Replies:** 0\
**Last updated:** [21 December 2018 19:21 UTC](https://discourse.nodered.org/t/change-page-on-specific-client/6047 "2018-12-21T19:21:50Z")

</div>

is it possible to change a page in dashboard for a single client (browser)? I want to have a small raspberry with 3,5" screen where I can change pages based on events other than presses on the touch screen

---

## [Access msg.payload in script tag](https://discourse.nodered.org/t/access-msg-payload-in-script-tag/6012)

<div class="topic-metadata">

**Author:** [@Ansvas](https://discourse.nodered.org/u/Ansvas)\
**Replies:** 3\
**Last updated:** [21 December 2018 19:19 UTC](https://discourse.nodered.org/t/access-msg-payload-in-script-tag/6012 "2018-12-21T19:19:19Z")

</div>

Hello, I am new to node-red. so i don't know i am asking the right question or not. But what i want to do is- after getting data from sqlite database i want to access it in the script tag of template node. I have tried t…

---

## [Node-red lost connection to the server with new node](https://discourse.nodered.org/t/node-red-lost-connection-to-the-server-with-new-node/6042)

<div class="topic-metadata">

**Author:** [@beginnercoder](https://discourse.nodered.org/u/beginnercoder)\
**Replies:** 1\
**Last updated:** [21 December 2018 16:23 UTC](https://discourse.nodered.org/t/node-red-lost-connection-to-the-server-with-new-node/6042 "2018-12-21T16:23:44Z")

</div>

I have to connect to Sparql endpoint and query RDF via Node-red. I found an add-on node called "node-red-contrib-sparql" which enables that. I am able to install the node. I downloaded python and install required librari…

---

## [First own UI node](https://discourse.nodered.org/t/first-own-ui-node/5236)

<div class="topic-metadata">

**Author:** [@Georg25](https://discourse.nodered.org/u/Georg25)\
**Replies:** 13\
**Last updated:** [21 December 2018 14:02 UTC](https://discourse.nodered.org/t/first-own-ui-node/5236 "2018-12-21T14:02:49Z")

</div>

Hi, I´m trying to develop my first UI Node, I want to generate something like this: but nothing happened. If I leave the if condition, it shows me the image. So my question, how can I change the image depending …

---

## [Function with different values in different times](https://discourse.nodered.org/t/function-with-different-values-in-different-times/6024)

<div class="topic-metadata">

**Author:** [@Lance99](https://discourse.nodered.org/u/Lance99)\
**Replies:** 4\
**Last updated:** [21 December 2018 13:09 UTC](https://discourse.nodered.org/t/function-with-different-values-in-different-times/6024 "2018-12-21T13:09:03Z")

</div>

I want to calculate an equation with 3 variables. The variable are coming asynchrone so I have to stor the latest values and then calculate the equation. Then output the result. Then wait for a new next value and then ca…

---

## [Feature request: switching between projects](https://discourse.nodered.org/t/feature-request-switching-between-projects/5973)

<div class="topic-metadata">

**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 3\
**Last updated:** [21 December 2018 10:19 UTC](https://discourse.nodered.org/t/feature-request-switching-between-projects/5973 "2018-12-21T10:19:42Z")

</div>

Would it be possible to have the Open item in the Projects sub-menu present a list of the available projects and allow switching to one of them? The appearance would be similar to the Import/Library item.

---

## [Can't hide Dashboard Group](https://discourse.nodered.org/t/cant-hide-dashboard-group/6015)

<div class="topic-metadata">

**Author:** [@Surrbradl08](https://discourse.nodered.org/u/Surrbradl08)\
**Replies:** 4\
**Last updated:** [21 December 2018 10:14 UTC](https://discourse.nodered.org/t/cant-hide-dashboard-group/6015 "2018-12-21T10:14:53Z")

</div>

Hi! I'm struggling with hiding a group in the node-red dashboard. I want to hide the Finish Cocktail group if there are less than 2 ingredients in the table. I debugged the node, it sends the command to hide, but nothin…

---

## [Extract value from serial port string data](https://discourse.nodered.org/t/extract-value-from-serial-port-string-data/5777)

<div class="topic-metadata">

**Author:** [@iotkismec](https://discourse.nodered.org/u/iotkismec)\
**Replies:** 2\
**Last updated:** [21 December 2018 04:30 UTC](https://discourse.nodered.org/t/extract-value-from-serial-port-string-data/5777 "2018-12-21T04:30:01Z")

</div>

Hi All, I got a data from PLC using serial communication. The data that i got is @00EX01520063FFFF5E\*. How can i extract value from the buffer. I just need the data in between @00EX and 5E\* .

---

## [hackAIR air quality project](https://discourse.nodered.org/t/hackair-air-quality-project/5384)

<div class="topic-metadata">

**Author:** [@tverilytt](https://discourse.nodered.org/u/tverilytt)\
**Replies:** 4\
**Last updated:** [20 December 2018 23:13 UTC](https://discourse.nodered.org/t/hackair-air-quality-project/5384 "2018-12-20T23:13:35Z")

</div>

hi! I am participating in the hackAIR EU project on air quality measurements. I have an air quality sensor, and are using Node-RED (what else...) to collect and visualize the data. The information page on this can b…

---

## [Status/dashboard (ui\_text) bug](https://discourse.nodered.org/t/status-dashboard-ui-text-bug/6002)

<div class="topic-metadata">

**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 3\
**Last updated:** [20 December 2018 22:01 UTC](https://discourse.nodered.org/t/status-dashboard-ui-text-bug/6002 "2018-12-20T22:01:53Z")

</div>

Running NR 0.19.5 and dashboard 2.12.2, this flow throws an error from the ui\_text node labelled "status": "TypeError: Cannot read property 'toString' of undefined". I have confirmed that there is no error using dashboar…

---

## [Updating a live system from a development node-red](https://discourse.nodered.org/t/updating-a-live-system-from-a-development-node-red/5998)

<div class="topic-metadata">

**Author:** [@kilnageer](https://discourse.nodered.org/u/kilnageer)\
**Replies:** 2\
**Last updated:** [20 December 2018 20:48 UTC](https://discourse.nodered.org/t/updating-a-live-system-from-a-development-node-red/5998 "2018-12-20T20:48:44Z")

</div>

Sorry in advance if this has been answered already. But I searched and couldn't find it :slight\_smile: I have two Linux based systems: a live RPI Rasbian one and a development Lubuntu one. When I deploy my latest devel…

---

## [Create a widget for the full width of the page](https://discourse.nodered.org/t/create-a-widget-for-the-full-width-of-the-page/5990)

<div class="topic-metadata">

**Author:** [@Lee](https://discourse.nodered.org/u/Lee)\
**Replies:** 3\
**Last updated:** [20 December 2018 15:41 UTC](https://discourse.nodered.org/t/create-a-widget-for-the-full-width-of-the-page/5990 "2018-12-20T15:41:02Z")

</div>

Is there any way to override the width limit on a widget? I want my widget to use the full page width.

---

## [Change the dimension of PDF file](https://discourse.nodered.org/t/change-the-dimension-of-pdf-file/5986)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 1\
**Last updated:** [20 December 2018 14:51 UTC](https://discourse.nodered.org/t/change-the-dimension-of-pdf-file/5986 "2018-12-20T14:51:15Z")

</div>

i have created a pdf file using this node node-red-contrib-pdf i want to change the dimension of file to A3 or A2 .. any ideas ? And thank you !

---

## [JSONata - time picture construct not working?](https://discourse.nodered.org/t/jsonata-time-picture-construct-not-working/5981)

<div class="topic-metadata">

**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 3\
**Last updated:** [20 December 2018 13:18 UTC](https://discourse.nodered.org/t/jsonata-time-picture-construct-not-working/5981 "2018-12-20T13:18:45Z")

</div>

Hello to JSONata bofs, This statement does not work: $fromMillis(($.timestamp), '\[D\]/\[M\]/\[Y\]') but this one does: $fromMillis(($.timestamp)') Does this mean that the picture construct per JSONata docs was not implem…

---

## [Try catch in flows](https://discourse.nodered.org/t/try-catch-in-flows/5977)

<div class="topic-metadata">

**Author:** [@akhilendharreddy](https://discourse.nodered.org/u/akhilendharreddy)\
**Replies:** 3\
**Last updated:** [20 December 2018 09:24 UTC](https://discourse.nodered.org/t/try-catch-in-flows/5977 "2018-12-20T09:24:36Z")

</div>

how can i achieve try and catch blocks in flows if any error i want to call the flow again? is this possible?

---

## [Display local image in pdf file](https://discourse.nodered.org/t/display-local-image-in-pdf-file/5702)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 11\
**Last updated:** [20 December 2018 02:01 UTC](https://discourse.nodered.org/t/display-local-image-in-pdf-file/5702 "2018-12-20T02:01:36Z")

</div>

i'am using HTML-PDF node to create a a pdf file. i send a table in mustache template node as an input and it create me a pdf file containing that table. My problem is, i went to add a local image inside that table. i ha…

---

## [Settings edition in the editor?](https://discourse.nodered.org/t/settings-edition-in-the-editor/5972)

<div class="topic-metadata">

**Author:** [@JoelG](https://discourse.nodered.org/u/JoelG)\
**Replies:** 2\
**Last updated:** [19 December 2018 21:31 UTC](https://discourse.nodered.org/t/settings-edition-in-the-editor/5972 "2018-12-19T21:31:51Z")

</div>

Hi all, First of all, this is my first message on the forum, so hello world and a great thanks to the developers ! A question for this topic, is there any plan to get the settings available and editable from the editor…

---

## [Specific Time format?](https://discourse.nodered.org/t/specific-time-format/5945)

<div class="topic-metadata">

**Author:** [@Naesstrom](https://discourse.nodered.org/u/Naesstrom)\
**Replies:** 18\
**Last updated:** [19 December 2018 19:17 UTC](https://discourse.nodered.org/t/specific-time-format/5945 "2018-12-19T19:17:18Z")

</div>

So I'm trying to follow the instructions on the MET Office API to upload my weatherdata to their global site and I've joined all my different mqtt flows etc. but having problem with the time format. In their manual they…

---

## [Value from Payload is empty](https://discourse.nodered.org/t/value-from-payload-is-empty/5965)

<div class="topic-metadata">

**Author:** [@Lee](https://discourse.nodered.org/u/Lee)\
**Replies:** 2\
**Last updated:** [19 December 2018 15:24 UTC](https://discourse.nodered.org/t/value-from-payload-is-empty/5965 "2018-12-19T15:24:35Z")

</div>

I am new to red node and trying to set up a flow to insert messages in a MS SQL database. I am having difficulty passing the values from the payload to the query. I can successfully insert into my table as long as a do…

---

## [Flows visibility](https://discourse.nodered.org/t/flows-visibility/5961)

<div class="topic-metadata">

**Author:** [@Lionel](https://discourse.nodered.org/u/Lionel)\
**Replies:** 2\
**Last updated:** [19 December 2018 14:47 UTC](https://discourse.nodered.org/t/flows-visibility/5961 "2018-12-19T14:47:43Z")

</div>

Hi, Our node-red application is intended to be exposed to many partners, and we would like to filter the visible flows for each partner. Is it possible ? Thx

---

## [Send http request using delay node](https://discourse.nodered.org/t/send-http-request-using-delay-node/5950)

<div class="topic-metadata">

**Author:** [@NRIT](https://discourse.nodered.org/u/NRIT)\
**Replies:** 6\
**Last updated:** [19 December 2018 09:51 UTC](https://discourse.nodered.org/t/send-http-request-using-delay-node/5950 "2018-12-19T09:51:25Z")

</div>

Hi all, I'm developing a simple node red IoT project In particular, when a sensor value is over a threshold, an http request is performed against a ticket system and, if doesn't yet exist, a ticket is opened This is o…

---

## [Email HTML Table from core Template Node](https://discourse.nodered.org/t/email-html-table-from-core-template-node/5897)

<div class="topic-metadata">

**Author:** [@wikus](https://discourse.nodered.org/u/wikus)\
**Replies:** 1\
**Last updated:** [19 December 2018 03:56 UTC](https://discourse.nodered.org/t/email-html-table-from-core-template-node/5897 "2018-12-19T03:56:58Z")

</div>

Hi guys, I have an HTTP end point that generates an HTML table for reporting purposes. I want to use this same flow to extract the HTML and send via email. The HTTP Out generates the table perfectly, but when I want to …

---

## [Input type date ng-model](https://discourse.nodered.org/t/input-type-date-ng-model/5941)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 3\
**Last updated:** [19 December 2018 03:02 UTC](https://discourse.nodered.org/t/input-type-date-ng-model/5941 "2018-12-19T03:02:44Z")

</div>

i have affect curent day to the input date to be the default valut. how can i affect this value to ng-model?? also how an i use input type date with ng-model without getting this error in send. \`\`\` Error: \[ngModel:da…

---

## [Display Array in Table, duplicate elements](https://discourse.nodered.org/t/display-array-in-table-duplicate-elements/5926)

<div class="topic-metadata">

**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 4\
**Last updated:** [18 December 2018 17:47 UTC](https://discourse.nodered.org/t/display-array-in-table-duplicate-elements/5926 "2018-12-18T17:47:25Z")

</div>

Hi, Very new to Node Red (Thank you!) and using my Javascript knowledge of many years ago, so please bear with me. I have found a problem when trying to display a table of an array in Dashboard. It seems that if there…

---

## [Modifying the MQTT Node to use periodically changing passwords](https://discourse.nodered.org/t/modifying-the-mqtt-node-to-use-periodically-changing-passwords/5899)

<div class="topic-metadata">

**Author:** [@gk9](https://discourse.nodered.org/u/gk9)\
**Replies:** 10\
**Last updated:** [18 December 2018 17:00 UTC](https://discourse.nodered.org/t/modifying-the-mqtt-node-to-use-periodically-changing-passwords/5899 "2018-12-18T17:00:16Z")

</div>

Hello, I would like to connect to an MQTT Broker that periodically changes its access password. The standard implementation of the Node Red MQTT Node is not able to handle this "dynamic" change of passwords. I am planni…

---

## [Virtual keyboard in any text fields](https://discourse.nodered.org/t/virtual-keyboard-in-any-text-fields/5712)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 25\
**Last updated:** [18 December 2018 16:24 UTC](https://discourse.nodered.org/t/virtual-keyboard-in-any-text-fields/5712 "2018-12-18T16:24:03Z")

</div>

is it possible todisplay a virtual keyboard in any textfields ?

---

## [Error in EXEC node](https://discourse.nodered.org/t/error-in-exec-node/5800)

<div class="topic-metadata">

**Author:** [@Indolec](https://discourse.nodered.org/u/Indolec)\
**Replies:** 6\
**Last updated:** [18 December 2018 15:51 UTC](https://discourse.nodered.org/t/error-in-exec-node/5800 "2018-12-18T15:51:09Z")

</div>

Just discovered NODE-RED and still learning the basics... Hardware is Raspberry Pi. Designed a flow, with a few exec nodes. Works perfectly on Rpi/Raspbian, commands work in Terminal. Now I want to run the flow on an…

---

## [New to red-dashboard](https://discourse.nodered.org/t/new-to-red-dashboard/5940)

<div class="topic-metadata">

**Author:** [@texxxo](https://discourse.nodered.org/u/texxxo)\
**Replies:** 10\
**Last updated:** [18 December 2018 15:34 UTC](https://discourse.nodered.org/t/new-to-red-dashboard/5940 "2018-12-18T15:34:48Z")

</div>

Hello, I'm new to red-dashboard and I'm trying to run the dashboard in my browser for the last 3 hours without success so I decided to create his topic here. After installation via inpm i node-red-dashboard I have only …

---

## [Watch node producing 2 payloads upon file creation](https://discourse.nodered.org/t/watch-node-producing-2-payloads-upon-file-creation/5938)

<div class="topic-metadata">

**Author:** [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)\
**Replies:** 3\
**Last updated:** [18 December 2018 14:28 UTC](https://discourse.nodered.org/t/watch-node-producing-2-payloads-upon-file-creation/5938 "2018-12-18T14:28:45Z")

</div>

I have a simple test flow to demonstrate my problem. This is my flow \[{"id":"d32c1f48.87f48","type":"tab","label":"Test flow","disabled":false,"info":""},{"id":"8c67530a.53a1f","type":"inject","z":"d32c1f48.87f48","nam…

[Previous page](https://discourse.nodered.org/latest.md?page=1333)

[Next page](https://discourse.nodered.org/latest.md?page=1335)