# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=933

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

**Page:** 934

---

## [How To Make Logging Data Values in Chart](https://discourse.nodered.org/t/how-to-make-logging-data-values-in-chart/5019)

<div class="topic-metadata">

**Author:** [@wtrk](https://discourse.nodered.org/u/wtrk)\
**Replies:** 39\
**Last updated:** [26 November 2018 20:25 UTC](https://discourse.nodered.org/t/how-to-make-logging-data-values-in-chart/5019 "2018-11-26T20:25:54Z")

</div>

Hi. I have flow and I can logging values in DB. But any specific time I want to choose with creating form node name and time specific ( Laser 1 - Last week values ) and make a graphic. So this is my next step. Thanks…

---

## [Get node's configuration information at runtime](https://discourse.nodered.org/t/get-nodes-configuration-information-at-runtime/5208)

<div class="topic-metadata">

**Author:** [@malinthasa](https://discourse.nodered.org/u/malinthasa)\
**Replies:** 2\
**Last updated:** [26 November 2018 16:22 UTC](https://discourse.nodered.org/t/get-nodes-configuration-information-at-runtime/5208 "2018-11-26T16:22:35Z")

</div>

Hi, I am looking for a way to get a specific node's configuration information (ex: number of inputs, outputs) in the run-time from another node. Is there any admin API to do that? Regards, Malintha

---

## [How to get OPCUA eventId ByteString value of events generated by IIoT OPCUA Event Listener node?](https://discourse.nodered.org/t/how-to-get-opcua-eventid-bytestring-value-of-events-generated-by-iiot-opcua-event-listener-node/5209)

<div class="topic-metadata">

**Author:** [@irmaheshwari96](https://discourse.nodered.org/u/irmaheshwari96)\
**Replies:** 0\
**Last updated:** [26 November 2018 13:21 UTC](https://discourse.nodered.org/t/how-to-get-opcua-eventid-bytestring-value-of-events-generated-by-iiot-opcua-event-listener-node/5209 "2018-11-26T13:21:09Z")

</div>

Does anyone knows how to get the eventId i.e. of bytestring datatype of the events generated by the IIot-OPCUA-Event-Listener-Node ? If anyone knows about it please help !

---

## [Check current dynamic IP then store it if it's new or update timestamp if it's not](https://discourse.nodered.org/t/check-current-dynamic-ip-then-store-it-if-its-new-or-update-timestamp-if-its-not/902)

<div class="topic-metadata">

**Author:** [@Noh](https://discourse.nodered.org/u/Noh)\
**Replies:** 14\
**Last updated:** [26 November 2018 11:40 UTC](https://discourse.nodered.org/t/check-current-dynamic-ip-then-store-it-if-its-new-or-update-timestamp-if-its-not/902 "2018-11-26T11:40:45Z")

</div>

My in-laws are on DHCP, with their ISP but they occasionally need me to administer their OpenSuse desktop (yes, they’re on Linux). It takes several tens of minutes, every time to get them to find and reveal their WAN IP.…

---

## [Display Wireless Temperature sensor readings in Dashboard using node red](https://discourse.nodered.org/t/display-wireless-temperature-sensor-readings-in-dashboard-using-node-red/5202)

<div class="topic-metadata">

**Author:** [@catchy65](https://discourse.nodered.org/u/catchy65)\
**Replies:** 2\
**Last updated:** [26 November 2018 09:53 UTC](https://discourse.nodered.org/t/display-wireless-temperature-sensor-readings-in-dashboard-using-node-red/5202 "2018-11-26T09:53:56Z")

</div>

Hello, I am new Node-Red, I want to use the desktop client made for node red, I have a code in Embedded C for the wireless temperature sensor, I am trying to display the wireless sensor data in the Node red dashboard, …

---

## [Cifs share by using exec node](https://discourse.nodered.org/t/cifs-share-by-using-exec-node/5185)

<div class="topic-metadata">

**Author:** [@jjj](https://discourse.nodered.org/u/jjj)\
**Replies:** 6\
**Last updated:** [26 November 2018 09:16 UTC](https://discourse.nodered.org/t/cifs-share-by-using-exec-node/5185 "2018-11-26T09:16:48Z")

</div>

Hi, i am just looking for a solution, backing up my pi over my network. I have a windows server, which only starts for backup routines. What i would like to do is the following scenario: Every night the bigtimer node i…

---

## [How can i append to PDF file in Node-Red?](https://discourse.nodered.org/t/how-can-i-append-to-pdf-file-in-node-red/5162)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 20\
**Last updated:** [25 November 2018 23:55 UTC](https://discourse.nodered.org/t/how-can-i-append-to-pdf-file-in-node-red/5162 "2018-11-25T23:55:33Z")

</div>

I'm looking for solution on how can i append to a pdf file. The output 'file' of HTML-PDF node generate a new file every time i insert new line. The output "buffer" /"stream" save only the first insert. Is it possible to…

---

## [Store data in pdf file](https://discourse.nodered.org/t/store-data-in-pdf-file/5136)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 5\
**Last updated:** [25 November 2018 19:18 UTC](https://discourse.nodered.org/t/store-data-in-pdf-file/5136 "2018-11-25T19:18:26Z")

</div>

what i'am trying to do is to store data from a modal/form to pdf file. the problem is pdf only store the last insert. i only have one line in my file. i think the output 'file' of HTML-PDF node generate a new file every …

---

## [Wemos Easy Megga](https://discourse.nodered.org/t/wemos-easy-megga/5166)

<div class="topic-metadata">

**Author:** [@chris1988](https://discourse.nodered.org/u/chris1988)\
**Replies:** 4\
**Last updated:** [25 November 2018 19:07 UTC](https://discourse.nodered.org/t/wemos-easy-megga/5166 "2018-11-25T19:07:16Z")

</div>

Anyone else having problems with freezing up

---

## [Wild Card questions file copy with fs-ops](https://discourse.nodered.org/t/wild-card-questions-file-copy-with-fs-ops/5181)

<div class="topic-metadata">

**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\
**Replies:** 13\
**Last updated:** [25 November 2018 18:48 UTC](https://discourse.nodered.org/t/wild-card-questions-file-copy-with-fs-ops/5181 "2018-11-25T18:48:22Z")

</div>

I had an accident with a corrupt (brand new!) SD card in one of my Pi's today, and I didn't have backups of the three hours I worked on Node-RED and Home Assistant yesterday. Luckily I managed to mount the card in a read…

---

## [Help with multiple inputs to a function node!](https://discourse.nodered.org/t/help-with-multiple-inputs-to-a-function-node/1608)

<div class="topic-metadata">

**Author:** [@kevinshane](https://discourse.nodered.org/u/kevinshane)\
**Replies:** 25\
**Last updated:** [25 November 2018 16:25 UTC](https://discourse.nodered.org/t/help-with-multiple-inputs-to-a-function-node/1608 "2018-11-25T16:25:02Z")

</div>

So sorry for the noob question, pretty new in node red, but please help! I have 2 incoming items which reports stats, I would like to compare these 2 values and then outputs the msg.payload to a single string say ON or …

---

## [MySQL node connection always refused](https://discourse.nodered.org/t/mysql-node-connection-always-refused/5164)

<div class="topic-metadata">

**Author:** [@Popo21](https://discourse.nodered.org/u/Popo21)\
**Replies:** 3\
**Last updated:** [24 November 2018 18:54 UTC](https://discourse.nodered.org/t/mysql-node-connection-always-refused/5164 "2018-11-24T18:54:30Z")

</div>

I try to get data from an external database with MySQL node, but it always refuses to connect. The flow consists from inject node -\> MySQL -\> debug node. I want to show the database value. Must I install phpMyAdmin and …

---

## [Looking for a relay switch function](https://discourse.nodered.org/t/looking-for-a-relay-switch-function/3065)

<div class="topic-metadata">

**Author:** [@chris1988](https://discourse.nodered.org/u/chris1988)\
**Replies:** 35\
**Last updated:** [24 November 2018 15:17 UTC](https://discourse.nodered.org/t/looking-for-a-relay-switch-function/3065 "2018-11-24T15:17:39Z")

</div>

Hello I am looking for a function so the flow of messages will only be allowed when a mqtt status is revived,but been able to have control independently of one example input - mqtt - cmd heater on input - mqtt - c…

---

## [Make a PDF file](https://discourse.nodered.org/t/make-a-pdf-file/2810)

<div class="topic-metadata">

**Author:** [@Popo21](https://discourse.nodered.org/u/Popo21)\
**Replies:** 8\
**Last updated:** [24 November 2018 09:13 UTC](https://discourse.nodered.org/t/make-a-pdf-file/2810 "2018-11-24T09:13:24Z")

</div>

Can Node-RED make a PDF from string msg.payload ? I'm trying make a flow like this: but the pdf file cant opened. Is it possible to make a pdf file with Node-RED ?

---

## [Can nodered be used as a gateway sdk in iot](https://discourse.nodered.org/t/can-nodered-be-used-as-a-gateway-sdk-in-iot/5134)

<div class="topic-metadata">

**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 5\
**Last updated:** [23 November 2018 20:29 UTC](https://discourse.nodered.org/t/can-nodered-be-used-as-a-gateway-sdk-in-iot/5134 "2018-11-23T20:29:59Z")

</div>

I'm new to node-red. So, as we wanted to build gateway sdk can we build that by using node-red.

---

## [Neopixels: how to set msg.brightness?](https://discourse.nodered.org/t/neopixels-how-to-set-msg-brightness/5132)

<div class="topic-metadata">

**Author:** [@CaptClaude](https://discourse.nodered.org/u/CaptClaude)\
**Replies:** 3\
**Last updated:** [23 November 2018 17:44 UTC](https://discourse.nodered.org/t/neopixels-how-to-set-msg-brightness/5132 "2018-11-23T17:44:59Z")

</div>

I've tried a bunch of different ways without luck here... I want a UI slider (0-100) to be able to vary the brightness of all of the pixels in a ring. I am utterly stumped on how to set msg.brightness. I have no troub…

---

## [Node-red-contrib-googlechart - all flows stop error](https://discourse.nodered.org/t/node-red-contrib-googlechart-all-flows-stop-error/5140)

<div class="topic-metadata">

**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 8\
**Last updated:** [23 November 2018 16:06 UTC](https://discourse.nodered.org/t/node-red-contrib-googlechart-all-flows-stop-error/5140 "2018-11-23T16:06:42Z")

</div>

Hi I am trying to use node-red-contrib-googlechart, I have imported there example and i get "Flows stopped due to missing node types. Check logs for details." What am I doing wrong ? I notice there is a box to enter …

---

## [Node-red aborting](https://discourse.nodered.org/t/node-red-aborting/5126)

<div class="topic-metadata">

**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\
**Replies:** 6\
**Last updated:** [23 November 2018 15:25 UTC](https://discourse.nodered.org/t/node-red-aborting/5126 "2018-11-23T15:25:01Z")

</div>

My node-red is aborting. Here is the console output. I am not sure what else to post about this issue. Hopefully this is enough? Joe \<--- Last few GCs ---\> \[2454:0x2844f48\] 69394 ms: Mark-sweep 124.3 (133.9) -\> 124…

---

## [Navigating the editor tabs](https://discourse.nodered.org/t/navigating-the-editor-tabs/5077)

<div class="topic-metadata">

**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 4\
**Last updated:** [23 November 2018 15:08 UTC](https://discourse.nodered.org/t/navigating-the-editor-tabs/5077 "2018-11-23T15:08:56Z")

</div>

Some of my projects have a large number of tabs each (sometimes 50+). This makes the horizontal scrolling of the tab something slow. In order to mitigate I reprogrammed the keyboard shortcuts using the left and right arr…

---

## [How Set msg.payload to a json stream buffer?](https://discourse.nodered.org/t/how-set-msg-payload-to-a-json-stream-buffer/5139)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 4\
**Last updated:** [23 November 2018 12:46 UTC](https://discourse.nodered.org/t/how-set-msg-payload-to-a-json-stream-buffer/5139 "2018-11-23T12:46:57Z")

</div>

i have recently installed json to csv converter. And i can't figure out how can set msg.payload to a json stream buffer for the input.

---

## [Enable HTTPS + User& pass for websockets in](https://discourse.nodered.org/t/enable-https-user-pass-for-websockets-in/1202)

<div class="topic-metadata">

**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 10\
**Last updated:** [22 November 2018 23:55 UTC](https://discourse.nodered.org/t/enable-https-user-pass-for-websockets-in/1202 "2018-11-22T23:55:40Z")

</div>

Good morning I’m trying to enable https for evident reasons… I have modified settings.js and uncommented lines as follows: var fs = require(“fs”); https: { key: fs.readFileSync(‘privatekey.pem’), cert: fs.readFileSy…

---

## [Function to store data from csv to table?](https://discourse.nodered.org/t/function-to-store-data-from-csv-to-table/5125)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 3\
**Last updated:** [22 November 2018 20:22 UTC](https://discourse.nodered.org/t/function-to-store-data-from-csv-to-table/5125 "2018-11-22T20:22:32Z")

</div>

Hi programers. I need a function that allows to store data from csv node to a table???

---

## [How to send SMS to different number using Twilio?](https://discourse.nodered.org/t/how-to-send-sms-to-different-number-using-twilio/5111)

<div class="topic-metadata">

**Author:** [@Conard](https://discourse.nodered.org/u/Conard)\
**Replies:** 21\
**Last updated:** [22 November 2018 20:41 UTC](https://discourse.nodered.org/t/how-to-send-sms-to-different-number-using-twilio/5111 "2018-11-22T20:41:33Z")

</div>

I have a database and its design is like this in my Microsoft SQL Database: Once a student has scanned his fingerprint, the serial port will generate output like this: {"SID":1,"Date":"20181121","Time":"01:54:54"} I…

---

## [Special character encoding /Utf8 problem](https://discourse.nodered.org/t/special-character-encoding-utf8-problem/5120)

<div class="topic-metadata">

**Author:** [@deedos](https://discourse.nodered.org/u/deedos)\
**Replies:** 9\
**Last updated:** [22 November 2018 20:36 UTC](https://discourse.nodered.org/t/special-character-encoding-utf8-problem/5120 "2018-11-22T20:36:30Z")

</div>

Hi, I need to use special characters (from portuguese, pt-br) like ç, ã and so forth, in a flow, specifically to write to a xml file. At the debug window on node-red, the characters looks all correct but when writing to…

---

## [Create HTML table with data in payload array](https://discourse.nodered.org/t/create-html-table-with-data-in-payload-array/5064)

<div class="topic-metadata">

**Author:** [@manuel](https://discourse.nodered.org/u/manuel)\
**Replies:** 6\
**Last updated:** [22 November 2018 13:26 UTC](https://discourse.nodered.org/t/create-html-table-with-data-in-payload-array/5064 "2018-11-22T13:26:10Z")

</div>

Hello, I've been working with node red for some time and I am slowly getting used to it. I'm just biting my teeth out of a problem: I am calling weather data from openweathermap.org via a http request node and save the…

---

## [Node "insight" selector?](https://discourse.nodered.org/t/node-insight-selector/5085)

<div class="topic-metadata">

**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 3\
**Last updated:** [21 November 2018 14:56 UTC](https://discourse.nodered.org/t/node-insight-selector/5085 "2018-11-21T14:56:43Z")

</div>

Simple question, I watched a NR presentation, where @knolleary uses some kind of magic of selecting nodes directly in the flow, how can i do this myself ?

---

## [Credentials (and file names).... Not quite clear on something](https://discourse.nodered.org/t/credentials-and-file-names-not-quite-clear-on-something/4834)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 32\
**Last updated:** [17 November 2018 02:11 UTC](https://discourse.nodered.org/t/credentials-and-file-names-not-quite-clear-on-something/4834 "2018-11-17T02:11:30Z")

</div>

Granted I have done this on ONE of my machines. But the story is not that simple. So, background: Machine (.99 TimPi) I tested the credentials settings. I edited the settings.js file to what is needed to force log in…

---

## [Save data from modal to file .csv](https://discourse.nodered.org/t/save-data-from-modal-to-file-csv/5074)

<div class="topic-metadata">

**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\
**Replies:** 0\
**Last updated:** [20 November 2018 16:47 UTC](https://discourse.nodered.org/t/save-data-from-modal-to-file-csv/5074 "2018-11-20T16:47:14Z")

</div>

Hi everyone. i have a problem with my modal. When i test my modal i find that i can only send data once. i cannot save another one only if i deploy the project. when i reopen my modal and want to write another data i fi…

---

## [Another dsm question - same trigger different transitions](https://discourse.nodered.org/t/another-dsm-question-same-trigger-different-transitions/4768)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 6\
**Last updated:** [20 November 2018 13:39 UTC](https://discourse.nodered.org/t/another-dsm-question-same-trigger-different-transitions/4768 "2018-11-20T13:39:44Z")

</div>

Looking for advice on the best way to accomplish something in node-red-contrib-dsm. I have a situation where the same trigger input causes different transitions dependent on current state, which is not in itself a probl…

---

## [Returnvalue in function-node from async action-node](https://discourse.nodered.org/t/returnvalue-in-function-node-from-async-action-node/5055)

<div class="topic-metadata">

**Author:** [@Talwar](https://discourse.nodered.org/u/Talwar)\
**Replies:** 1\
**Last updated:** [20 November 2018 07:18 UTC](https://discourse.nodered.org/t/returnvalue-in-function-node-from-async-action-node/5055 "2018-11-20T07:18:41Z")

</div>

Hello, I try to control my lights via xiaomi aqara cubes. At the moment iam stuck with the usage of a functionscript which is calling an actionnodes multiple times for webrequests. (I need the state of my hue-lamps) …

[Previous page](https://discourse.nodered.org/c/general/7.md?page=932)

[Next page](https://discourse.nodered.org/c/general/7.md?page=934)