# Latest

**URL:** https://discourse.nodered.org/latest.md?page=552

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

**Page:** 553

---

## [Display Table element in Dashboard](https://discourse.nodered.org/t/display-table-element-in-dashboard/63901)

<div class="topic-metadata">

**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 2\
**Last updated:** [14 June 2022 15:11 UTC](https://discourse.nodered.org/t/display-table-element-in-dashboard/63901 "2022-06-14T15:11:19Z")

</div>

Hi, is there a smart possibility to display data "Excel-like" in a table in the node-red dashboard ? I would like to collect and display some messages with up to 6 parameters each. BR G

---

## [Blynk Alternatives](https://discourse.nodered.org/t/blynk-alternatives/63751)

<div class="topic-metadata">

**Author:** [@gregoinc](https://discourse.nodered.org/u/gregoinc)\
**Replies:** 24\
**Last updated:** [14 June 2022 14:17 UTC](https://discourse.nodered.org/t/blynk-alternatives/63751 "2022-06-14T14:17:49Z")

</div>

Long time user of Node-Red and not about to change any time soon. Blynk on the other hand I am looking to replace... a long time user of the original Blynk, but with the retirement of that platform looming I figure it i…

---

## [JSONata object creation (with $each?)](https://discourse.nodered.org/t/jsonata-object-creation-with-each/63903)

<div class="topic-metadata">

**Author:** [@Bobblybook](https://discourse.nodered.org/u/Bobblybook)\
**Replies:** 4\
**Last updated:** [14 June 2022 13:53 UTC](https://discourse.nodered.org/t/jsonata-object-creation-with-each/63903 "2022-06-14T13:53:44Z")

</div>

Hi everyone, I'm new to JSONata and I'm struggling to get this right. I have some data that I need to transform for graphing in node-red. I've had a look through the documentation and examples, and I'm almost there but…

---

## [How to start node-red with source code](https://discourse.nodered.org/t/how-to-start-node-red-with-source-code/63916)

<div class="topic-metadata">

**Author:** [@Atul-Lohiya](https://discourse.nodered.org/u/Atul-Lohiya)\
**Replies:** 1\
**Last updated:** [14 June 2022 13:08 UTC](https://discourse.nodered.org/t/how-to-start-node-red-with-source-code/63916 "2022-06-14T13:08:14Z")

</div>

As part of my analysis of various workflow tools and choose the best option to use for my inhouse development, I am trying to understand node-red. I want to understand is it possible to do development work and prod deplo…

---

## [Can I pass Global variables into the Username and Password of a HTTP Request Node](https://discourse.nodered.org/t/can-i-pass-global-variables-into-the-username-and-password-of-a-http-request-node/63456)

<div class="topic-metadata">

**Author:** [@championc](https://discourse.nodered.org/u/championc)\
**Replies:** 4\
**Last updated:** [14 June 2022 12:18 UTC](https://discourse.nodered.org/t/can-i-pass-global-variables-into-the-username-and-password-of-a-http-request-node/63456 "2022-06-14T12:18:03Z")

</div>

Hi all, I was hoping to store a Username and Password in global variables, set from a sort of Control Panel, and then use them in a HTTP Request Node. But how would I pass a password since it's all hidden with \*\*\*\*\*\*

---

## [Private node in custom catalog?](https://discourse.nodered.org/t/private-node-in-custom-catalog/63912)

<div class="topic-metadata">

**Author:** [@Dunken](https://discourse.nodered.org/u/Dunken)\
**Replies:** 0\
**Last updated:** [14 June 2022 12:17 UTC](https://discourse.nodered.org/t/private-node-in-custom-catalog/63912 "2022-06-14T12:17:29Z")

</div>

Hi all I'm currently working on a Custom Node. At the end I want to deploy the node to a single instance of Node-RED and I would like to make sure the code of the node remains private or protected... what would you reco…

---

## [Quicker way to open another node's edit tray while editing a node](https://discourse.nodered.org/t/quicker-way-to-open-another-nodes-edit-tray-while-editing-a-node/63910)

<div class="topic-metadata">

**Author:** [@alp](https://discourse.nodered.org/u/alp)\
**Replies:** 0\
**Last updated:** [14 June 2022 11:58 UTC](https://discourse.nodered.org/t/quicker-way-to-open-another-nodes-edit-tray-while-editing-a-node/63910 "2022-06-14T11:58:58Z")

</div>

Currently the quickest way to change settings of multiple nodes seems to be: Edit a node. Click somewhere in the greyed out editor to save/confirm settings. Double click on next node to edit. I think it would be usefu…

---

## [Tf coco ssd don't work](https://discourse.nodered.org/t/tf-coco-ssd-dont-work/63395)

<div class="topic-metadata">

**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 20\
**Last updated:** [14 June 2022 10:04 UTC](https://discourse.nodered.org/t/tf-coco-ssd-dont-work/63395 "2022-06-14T10:04:03Z")

</div>

Since yesterday I had a simple car detection based on coco ssd node (image) This morning I update the node to the last version and now coco don't work. I have this error .. \[error\] \[tensorflowCoco:9fa12ff99f8da570\] Er…

---

## [One Function node instead of multiple change nodes!](https://discourse.nodered.org/t/one-function-node-instead-of-multiple-change-nodes/62447)

<div class="topic-metadata">

**Author:** [@mkdthanga](https://discourse.nodered.org/u/mkdthanga)\
**Replies:** 18\
**Last updated:** [14 June 2022 09:53 UTC](https://discourse.nodered.org/t/one-function-node-instead-of-multiple-change-nodes/62447 "2022-06-14T09:53:30Z")

</div>

I have a lot of change nodes which sets new properties to the msg.payload as shown below. I want to use function node instead of multiple change nodes which are complex to read! How can I achieve this? Please help, I am …

---

## [Search for same value in two arrays](https://discourse.nodered.org/t/search-for-same-value-in-two-arrays/63713)

<div class="topic-metadata">

**Author:** [@milner236](https://discourse.nodered.org/u/milner236)\
**Replies:** 4\
**Last updated:** [14 June 2022 09:44 UTC](https://discourse.nodered.org/t/search-for-same-value-in-two-arrays/63713 "2022-06-14T09:44:51Z")

</div>

Hello all. I have two arrays that contain a dynamic number of objects (per input). I am trying to do the following: For each object in the first array, check if a certain value exists in any of the objects in the se…

---

## [Open new session on another device/ui control for tabs failure](https://discourse.nodered.org/t/open-new-session-on-another-device-ui-control-for-tabs-failure/63569)

<div class="topic-metadata">

**Author:** [@simon.marquardt](https://discourse.nodered.org/u/simon.marquardt)\
**Replies:** 2\
**Last updated:** [14 June 2022 09:12 UTC](https://discourse.nodered.org/t/open-new-session-on-another-device-ui-control-for-tabs-failure/63569 "2022-06-14T09:12:50Z")

</div>

Hello, we are using node-red-dashboard for creating a dynamic ui. The dashboard receives a message via tcp in to configure the ui nodes (buttons/labels/buttonname hide/show). The dashboard is actually working on the devi…

---

## [Node --trace-warnings](https://discourse.nodered.org/t/node-trace-warnings/63728)

<div class="topic-metadata">

**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 4\
**Last updated:** [14 June 2022 09:10 UTC](https://discourse.nodered.org/t/node-trace-warnings/63728 "2022-06-14T09:10:56Z")

</div>

At start my raspberry Pi4 I have this error: (node:1548) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 flows:started listeners added to \[EventEmitter\]. Use emitter.setMaxListeners() to incr…

---

## [Multiple Instances of a workflow - flow variable](https://discourse.nodered.org/t/multiple-instances-of-a-workflow-flow-variable/63889)

<div class="topic-metadata">

**Author:** [@swapnil\_satpathy](https://discourse.nodered.org/u/swapnil_satpathy)\
**Replies:** 2\
**Last updated:** [14 June 2022 09:06 UTC](https://discourse.nodered.org/t/multiple-instances-of-a-workflow-flow-variable/63889 "2022-06-14T09:06:05Z")

</div>

Hi .can you please help me with how to handle this scenario. I have a scenario in which for the first http request, I am getting a shipment number which I have to store as a flow variable since it has to be part of the u…

---

## [My Node Red Dashboard and ESP32 temp/humidity/pir/touchscreens](https://discourse.nodered.org/t/my-node-red-dashboard-and-esp32-temp-humidity-pir-touchscreens/63898)

<div class="topic-metadata">

**Author:** [@RandomSporadicProjs](https://discourse.nodered.org/u/RandomSporadicProjs)\
**Replies:** 1\
**Last updated:** [14 June 2022 08:54 UTC](https://discourse.nodered.org/t/my-node-red-dashboard-and-esp32-temp-humidity-pir-touchscreens/63898 "2022-06-14T08:54:39Z")

</div>

Probably nothing too unusual here. I recently posted a flow about my heating/hot water flow, and then found this thread - so thought I'd post a screenshot. This is one screen from my multi-screen node-red dashboard, sh…

---

## [Ideas on how to create a Thermostat flow with scheduling](https://discourse.nodered.org/t/ideas-on-how-to-create-a-thermostat-flow-with-scheduling/63752)

<div class="topic-metadata">

**Author:** [@d\_tech](https://discourse.nodered.org/u/d_tech)\
**Replies:** 9\
**Last updated:** [14 June 2022 08:22 UTC](https://discourse.nodered.org/t/ideas-on-how-to-create-a-thermostat-flow-with-scheduling/63752 "2022-06-14T08:22:32Z")

</div>

Hi, Im am just looking for ideas on how to create a node red flow to create a thermostat for my heating with the following requirments. 4 preset time schedules for 3 day settings (all with individual temperature settin…

---

## [How to push multiple array pdfmake](https://discourse.nodered.org/t/how-to-push-multiple-array-pdfmake/63839)

<div class="topic-metadata">

**Author:** [@chawana](https://discourse.nodered.org/u/chawana)\
**Replies:** 29\
**Last updated:** [14 June 2022 08:03 UTC](https://discourse.nodered.org/t/how-to-push-multiple-array-pdfmake/63839 "2022-06-14T08:03:19Z")

</div>

please help to guidline code How to push multiple arry pdfmake 1 page var stuff = msg.payload\[\]; var dd = { content: stuff.map(function(item) { return { text: item, pageBreak: 'after'} }) }; msg.payloa…

---

## [Getting Error while deploying any flow](https://discourse.nodered.org/t/getting-error-while-deploying-any-flow/63893)

<div class="topic-metadata">

**Author:** [@Muhammad\_Faizan](https://discourse.nodered.org/u/Muhammad_Faizan)\
**Replies:** 1\
**Last updated:** [14 June 2022 07:19 UTC](https://discourse.nodered.org/t/getting-error-while-deploying-any-flow/63893 "2022-06-14T07:19:36Z")

</div>

I get this error Flushing file \\Users\\Muham\\.node red\\\*.$$$ to disk failed : Error: ENOENT: no such file or directory, open 'C:\\Users\\Muham\\.node-red\\\*.$$$'" 6/14/2022, 11:31:01 AM msg : string\[92\] "Error saving flows: …

---

## [Multiple Instances of a workflow](https://discourse.nodered.org/t/multiple-instances-of-a-workflow/2093)

<div class="topic-metadata">

**Author:** [@sourcedexter](https://discourse.nodered.org/u/sourcedexter)\
**Replies:** 6\
**Last updated:** [14 June 2022 06:59 UTC](https://discourse.nodered.org/t/multiple-instances-of-a-workflow/2093 "2022-06-14T06:59:21Z")

</div>

I wanted to know If I can deploy a workflow and then create multiple instances of it. Here is an example: Let's assume that there is a workflow that takes in a vehicle number and state and checks if that vehicle has vi…

---

## [OR Node or similiar solution](https://discourse.nodered.org/t/or-node-or-similiar-solution/63876)

<div class="topic-metadata">

**Author:** [@duffy6](https://discourse.nodered.org/u/duffy6)\
**Replies:** 3\
**Last updated:** [14 June 2022 06:47 UTC](https://discourse.nodered.org/t/or-node-or-similiar-solution/63876 "2022-06-14T06:47:48Z")

</div>

Hi guys! I have bollean inputs and want to have an output which is TRUE if ONE of the three inputs is true. What‘s the easiest way to do that? Wishes Andreas

---

## [Working with the switch](https://discourse.nodered.org/t/working-with-the-switch/63846)

<div class="topic-metadata">

**Author:** [@HuynhNguyet](https://discourse.nodered.org/u/HuynhNguyet)\
**Replies:** 3\
**Last updated:** [14 June 2022 01:57 UTC](https://discourse.nodered.org/t/working-with-the-switch/63846 "2022-06-14T01:57:29Z")

</div>

Hi, My project is receive and transmit the switch status. When receving the status change, the switch didn't change status. I don't where was I wrong? If you know, please share it with me. Thank you very much!

---

## [Auto-generate dashboard groups?](https://discourse.nodered.org/t/auto-generate-dashboard-groups/63864)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 8\
**Last updated:** [14 June 2022 01:11 UTC](https://discourse.nodered.org/t/auto-generate-dashboard-groups/63864 "2022-06-14T01:11:07Z")

</div>

I have a generic dashboard group to display values: I need to generate n groups dynamically, from the flow. I understand it cannot be done with standard dashboard rules, but maybe with an ui\_template?

---

## [Trying to fill between chart line](https://discourse.nodered.org/t/trying-to-fill-between-chart-line/63884)

<div class="topic-metadata">

**Author:** [@nmichael314](https://discourse.nodered.org/u/nmichael314)\
**Replies:** 0\
**Last updated:** [14 June 2022 00:24 UTC](https://discourse.nodered.org/t/trying-to-fill-between-chart-line/63884 "2022-06-14T00:24:20Z")

</div>

I'm trying to fill the area between two lines on a chart. I'm preparing the msg for the chart like this: msg.payload = \[{ "series": \["G50","G80"\], "data":\[ \[{"x": 1,"y": chartGain50\[0\]},{"x": 2,"y":cha…

---

## [Preheat or precool car](https://discourse.nodered.org/t/preheat-or-precool-car/63879)

<div class="topic-metadata">

**Author:** [@hitnrun30](https://discourse.nodered.org/u/hitnrun30)\
**Replies:** 0\
**Last updated:** [13 June 2022 21:40 UTC](https://discourse.nodered.org/t/preheat-or-precool-car/63879 "2022-06-13T21:40:58Z")

</div>

Ok, i need a little help, so far I have been able to use the http request to get half of what I need. I get the hourly forecast and then using a function loop through the values to get the next days forecast for the hou…

---

## [Timestamp and GMT value problem](https://discourse.nodered.org/t/timestamp-and-gmt-value-problem/62890)

<div class="topic-metadata">

**Author:** [@DemalCal96](https://discourse.nodered.org/u/DemalCal96)\
**Replies:** 6\
**Last updated:** [13 June 2022 21:54 UTC](https://discourse.nodered.org/t/timestamp-and-gmt-value-problem/62890 "2022-06-13T21:54:23Z")

</div>

Hello to all. I am handling and manipulating data from a database. Each data has its own timestamp, which was taken in UTC, as this data comes from different parts of the world. This data must be converted into a table i…

---

## [Docker cannot deploy flow](https://discourse.nodered.org/t/docker-cannot-deploy-flow/63877)

<div class="topic-metadata">

**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 0\
**Last updated:** [13 June 2022 21:14 UTC](https://discourse.nodered.org/t/docker-cannot-deploy-flow/63877 "2022-06-13T21:14:00Z")

</div>

pls help me hi I cant deploy any flow I see this Error in Editor Deploy failed {"code":"unexpected\_error","message":"Cannot read property 'rev' of null"} Dockerfile FROM nodered/node-red # Copy package.json to the W…

---

## [Size of flows.json and performance](https://discourse.nodered.org/t/size-of-flows-json-and-performance/63799)

<div class="topic-metadata">

**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 21\
**Last updated:** [13 June 2022 21:08 UTC](https://discourse.nodered.org/t/size-of-flows-json-and-performance/63799 "2022-06-13T21:08:52Z")

</div>

Hi , Is there any performance stats vis-à-vis size of flows.json? We have ~3500 nodes in flows .json - spanning multiple flows / subflows. What we see is - once we do deploy - even if its deploy modified nodes - it ta…

---

## [Convert Data from String to Number](https://discourse.nodered.org/t/convert-data-from-string-to-number/63875)

<div class="topic-metadata">

**Author:** [@SammyJang](https://discourse.nodered.org/u/SammyJang)\
**Replies:** 3\
**Last updated:** [13 June 2022 20:54 UTC](https://discourse.nodered.org/t/convert-data-from-string-to-number/63875 "2022-06-13T20:54:19Z")

</div>

Hello life savers, I'm using sensors to send data from Node-Red to AWS IoT by using MQTT out. In the begining, there was no battery data in the payload so I set the change node to put the battery data in the payload(So…

---

## [Refresh and auto update of values](https://discourse.nodered.org/t/refresh-and-auto-update-of-values/63221)

<div class="topic-metadata">

**Author:** [@Fripper](https://discourse.nodered.org/u/Fripper)\
**Replies:** 6\
**Last updated:** [13 June 2022 20:45 UTC](https://discourse.nodered.org/t/refresh-and-auto-update-of-values/63221 "2022-06-13T20:45:25Z")

</div>

Hi there, Using Node-red v.2.0.6. Having some questions. So I'm having some difficulties understanding what is wrong with my code. I have an input voltage from an generator that I would like to regulate to 230V setpo…

---

## [4 ui buttons using single ui template node](https://discourse.nodered.org/t/4-ui-buttons-using-single-ui-template-node/63865)

<div class="topic-metadata">

**Author:** [@KamranDurrani](https://discourse.nodered.org/u/KamranDurrani)\
**Replies:** 1\
**Last updated:** [13 June 2022 18:38 UTC](https://discourse.nodered.org/t/4-ui-buttons-using-single-ui-template-node/63865 "2022-06-13T18:38:07Z")

</div>

Hello Sir I wanted to ask if there is a way to create 4 buttons using a single ui node. Each of these buttons are momentary push button. Currently for each button I am using 4 different templates node and combining them …

---

## [How can I have diffrent nodes modbus and serial node use the same usb port?](https://discourse.nodered.org/t/how-can-i-have-diffrent-nodes-modbus-and-serial-node-use-the-same-usb-port/63705)

<div class="topic-metadata">

**Author:** [@SP-Mushrooms](https://discourse.nodered.org/u/SP-Mushrooms)\
**Replies:** 3\
**Last updated:** [13 June 2022 16:58 UTC](https://discourse.nodered.org/t/how-can-i-have-diffrent-nodes-modbus-and-serial-node-use-the-same-usb-port/63705 "2022-06-13T16:58:46Z")

</div>

My issue is that I only have one usb port and thus only one config node can connect to it at any given time both my serial node and modbus node need their config node to be connected to the usb port for the node to work. …

[Previous page](https://discourse.nodered.org/latest.md?page=551)

[Next page](https://discourse.nodered.org/latest.md?page=553)