# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=272

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

**Page:** 273

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## [Node-red-node-email - Sender E-Mail Address](https://discourse.nodered.org/t/node-red-node-email-sender-e-mail-address/72699)

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**Author:** [@thomas-hn](https://discourse.nodered.org/u/thomas-hn)\
**Replies:** 3\
**Last updated:** [26 December 2022 21:49 UTC](https://discourse.nodered.org/t/node-red-node-email-sender-e-mail-address/72699 "2022-12-26T21:49:39Z")

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Hi, the E-Mail server I use with node-red-node-email requires the username only (not the e-mail address) in the User-ID field. This causes that the sender of my Node Red e-mails is not shown correctly at the receiver. I…

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## [Average by unknown numbers of messages and unknown time period](https://discourse.nodered.org/t/average-by-unknown-numbers-of-messages-and-unknown-time-period/72663)

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**Author:** [@Crashy77](https://discourse.nodered.org/u/Crashy77)\
**Replies:** 5\
**Last updated:** [26 December 2022 20:44 UTC](https://discourse.nodered.org/t/average-by-unknown-numbers-of-messages-and-unknown-time-period/72663 "2022-12-26T20:44:43Z")

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Hi. I want to make averages for COP´s of my heatpump. Actually I´m sending them every 10 seconds to influxDB, but it´s looking terrible in Grafana. The problem is, that the consumption time is always different for heat…

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## [NR + Docker: Installation of new module leads to crash (dbus error)](https://discourse.nodered.org/t/nr-docker-installation-of-new-module-leads-to-crash-dbus-error/72579)

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**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 3\
**Last updated:** [26 December 2022 20:09 UTC](https://discourse.nodered.org/t/nr-docker-installation-of-new-module-leads-to-crash-dbus-error/72579 "2022-12-26T20:09:22Z")

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Hiho folks :slight\_smile: I use Node Red in Docker and ported it from Raspberry Pi to WSL Docker x86 for performance reasons. Everything works fine since I try to install a new node module. I tried ui\_etable and some o…

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## [Flexdash Bar Chart](https://discourse.nodered.org/t/flexdash-bar-chart/72654)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 19\
**Last updated:** [26 December 2022 18:33 UTC](https://discourse.nodered.org/t/flexdash-bar-chart/72654 "2022-12-26T18:33:59Z")

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I tried to create a column chart/bar chart but unable to get around how to , i am able to generate a line chart with example given. would you please help in a demo flow for the same. also i need some help in getting the…

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## [Transform data from array](https://discourse.nodered.org/t/transform-data-from-array/72733)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 10\
**Last updated:** [26 December 2022 18:19 UTC](https://discourse.nodered.org/t/transform-data-from-array/72733 "2022-12-26T18:19:45Z")

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How do i transform the below data from this format \[\[a,b,c,d\],\[1,2,3,4\],\[10,20,30,40\]\] to \[\[a,1,10\],\[b,2,20\],\[c,3,30\],\[d,4,40\]\] i have got some examples on forum for converting static data from one form to another b…

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## [Trying to trigger a switch on this error message from a Shelly node](https://discourse.nodered.org/t/trying-to-trigger-a-switch-on-this-error-message-from-a-shelly-node/72727)

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**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\
**Replies:** 2\
**Last updated:** [26 December 2022 17:59 UTC](https://discourse.nodered.org/t/trying-to-trigger-a-switch-on-this-error-message-from-a-shelly-node/72727 "2022-12-26T17:59:08Z")

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I would like to trigger a switch when a Shelly node times out. I tried msg.string contains timeout, but that doesnt work. It looks as if it is just msg ? But I cannot set that in a switch edit I am not sure this is…

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## [How to add data to a message with different send times?](https://discourse.nodered.org/t/how-to-add-data-to-a-message-with-different-send-times/72731)

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**Author:** [@namexx](https://discourse.nodered.org/u/namexx)\
**Replies:** 1\
**Last updated:** [26 December 2022 17:32 UTC](https://discourse.nodered.org/t/how-to-add-data-to-a-message-with-different-send-times/72731 "2022-12-26T17:32:36Z")

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Hello I have to send a msg.payload that I need to add data with different send times. Because i send data to server every 3 seconds and i need include all data in one message. Example: message1 ="hi1"; //this message…

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## [Reading value from ML PLC using modbus serial RS232 in nodered](https://discourse.nodered.org/t/reading-value-from-ml-plc-using-modbus-serial-rs232-in-nodered/72726)

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**Author:** [@akshayjain](https://discourse.nodered.org/u/akshayjain)\
**Replies:** 3\
**Last updated:** [26 December 2022 17:09 UTC](https://discourse.nodered.org/t/reading-value-from-ml-plc-using-modbus-serial-rs232-in-nodered/72726 "2022-12-26T17:09:06Z")

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Hi There, as @Steve-Mcl was telling me why i am using code not the node the reason is this, This is a working example from a guy who helped me well enough but now he is not there and i have to read data from PLC as he ma…

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## [How to detect unused flow (missing mqtt input)](https://discourse.nodered.org/t/how-to-detect-unused-flow-missing-mqtt-input/72710)

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**Author:** [@AndKe](https://discourse.nodered.org/u/AndKe)\
**Replies:** 3\
**Last updated:** [26 December 2022 16:59 UTC](https://discourse.nodered.org/t/how-to-detect-unused-flow-missing-mqtt-input/72710 "2022-12-26T16:59:58Z")

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Some MQTT devices battery die, then there is no mqtt-in input. What is the proper way to cause some action - when a input/mqtt-in has not seen data(been used) for x hours?

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## [TypeError: Cannot read properties of undefined (reading 'temperature')](https://discourse.nodered.org/t/typeerror-cannot-read-properties-of-undefined-reading-temperature/72738)

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**Author:** [@AndKe](https://discourse.nodered.org/u/AndKe)\
**Replies:** 3\
**Last updated:** [26 December 2022 16:58 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-properties-of-undefined-reading-temperature/72738 "2022-12-26T16:58:27Z")

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Please see the global variables and function below. I hope you can find out why this fails.(error in post subject) I can only assume this is happening at line 6 or 8.

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## [Trying to get some data from a website](https://discourse.nodered.org/t/trying-to-get-some-data-from-a-website/72597)

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**Author:** [@ignalonso](https://discourse.nodered.org/u/ignalonso)\
**Replies:** 5\
**Last updated:** [26 December 2022 16:54 UTC](https://discourse.nodered.org/t/trying-to-get-some-data-from-a-website/72597 "2022-12-26T16:54:27Z")

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hello. I´m trying to get one specific data from a website but I receive the msg empty. Can someone help me ? I let here my flow. \[ { "id": "bd6a2a896ca035da", "type": "tab", "label": "Flow 5", "disabled": false, …

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## [Sorting a string](https://discourse.nodered.org/t/sorting-a-string/72739)

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**Author:** [@ignalonso](https://discourse.nodered.org/u/ignalonso)\
**Replies:** 1\
**Last updated:** [26 December 2022 16:52 UTC](https://discourse.nodered.org/t/sorting-a-string/72739 "2022-12-26T16:52:01Z")

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I´m getting this value: 0.20607 €/kWh but i just want the numerical part. 0.20607 How can i get it ?

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## [Is a flow considered to be dirty/modified if one of its wires is cut?](https://discourse.nodered.org/t/is-a-flow-considered-to-be-dirty-modified-if-one-of-its-wires-is-cut/72732)

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**Author:** [@kevinGodell](https://discourse.nodered.org/u/kevinGodell)\
**Replies:** 0\
**Last updated:** [26 December 2022 15:19 UTC](https://discourse.nodered.org/t/is-a-flow-considered-to-be-dirty-modified-if-one-of-its-wires-is-cut/72732 "2022-12-26T15:19:52Z")

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Forgive me if this is expected behavior, since I can duplicate it on my old node-red v1.1.3 and my new v3.0.2. The closest thing I could find to this is Deploying the state machine node does not change its status, but th…

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## [String Auflösen](https://discourse.nodered.org/t/string-auflosen/72723)

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**Author:** [@ahtdf](https://discourse.nodered.org/u/ahtdf)\
**Replies:** 5\
**Last updated:** [26 December 2022 13:36 UTC](https://discourse.nodered.org/t/string-auflosen/72723 "2022-12-26T13:36:47Z")

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Hallo zusammen Ich stecke total fest, versuche schon seit Tagen einen MQTT String aufzulösen. der Paylod sieht so aus. payload: "{"Time":"2022-12-26T11:53:53","Switch1":"OFF","Switch2":"ON","Switch3":"ON","Switch4":…

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## [Determine tomorrow's day of the month](https://discourse.nodered.org/t/determine-tomorrows-day-of-the-month/72718)

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**Author:** [@scsirob](https://discourse.nodered.org/u/scsirob)\
**Replies:** 11\
**Last updated:** [26 December 2022 13:14 UTC](https://discourse.nodered.org/t/determine-tomorrows-day-of-the-month/72718 "2022-12-26T13:14:07Z")

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I'm running Node Red v3.0.2 in a Linux VM I'm trying to write some code to determine tomorrow's day of the month. One of my goals is to be as lean as possible, as this will run in a small system later. So to avoid addin…

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## [Extract value from MQTT message](https://discourse.nodered.org/t/extract-value-from-mqtt-message/72714)

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**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 5\
**Last updated:** [26 December 2022 12:25 UTC](https://discourse.nodered.org/t/extract-value-from-mqtt-message/72714 "2022-12-26T12:25:55Z")

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I need some help extracting one value (as float or integer) from an MQTT message. This is the relevant part of the MQTT message: {"BatV":3.041,"Bat\_status":3,"Exti\_pin\_level":"Low","Exti\_status":"False","Hum\_SHT":71.6,"…

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## [How to read data from ML Using modbus-serial function code](https://discourse.nodered.org/t/how-to-read-data-from-ml-using-modbus-serial-function-code/72696)

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**Author:** [@akshayjain](https://discourse.nodered.org/u/akshayjain)\
**Replies:** 5\
**Last updated:** [26 December 2022 11:13 UTC](https://discourse.nodered.org/t/how-to-read-data-from-ml-using-modbus-serial-function-code/72696 "2022-12-26T11:13:30Z")

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Hi there, i have an example of modbus-serial and i installed it via npm install modbus-serial and i got an example but this example has some error which i am not getting it how to solve so can anyone check what is the i…

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## [Node MCU analog.A0 to string to CSV](https://discourse.nodered.org/t/node-mcu-analog-a0-to-string-to-csv/72716)

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**Author:** [@soubiet](https://discourse.nodered.org/u/soubiet)\
**Replies:** 1\
**Last updated:** [26 December 2022 10:44 UTC](https://discourse.nodered.org/t/node-mcu-analog-a0-to-string-to-csv/72716 "2022-12-26T10:44:14Z")

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So i have this problem where i try to read a temp and a Voltage of a battery and store these into a CSV file. But as you can see, i don't get the string value of the Analog input. Instead i just get the text. I've tried …

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## [Dropbox Access again](https://discourse.nodered.org/t/dropbox-access-again/72686)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 2\
**Last updated:** [26 December 2022 10:40 UTC](https://discourse.nodered.org/t/dropbox-access-again/72686 "2022-12-26T10:40:56Z")

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I followed this discussion :tada: Refresh tokens in node-red-node-dropbox (Now published as v2.0.0) - Core Development / Feature Requests - Node-RED Forum (nodered.org) and from that I take that unless I either have a br…

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## [How to detect a node's status?](https://discourse.nodered.org/t/how-to-detect-a-nodes-status/72709)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [26 December 2022 09:46 UTC](https://discourse.nodered.org/t/how-to-detect-a-nodes-status/72709 "2022-12-26T09:46:37Z")

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Yeah, ok it is kind of obvious that the status node may be what I want. I would like to confirm this. I have an MQTT node and just now there is no comms to the broker. :frowning: :sob: And so the node is in the conn…

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## [Is it possible to delay payload, accept payload update, forward on a certain time interval/time?](https://discourse.nodered.org/t/is-it-possible-to-delay-payload-accept-payload-update-forward-on-a-certain-time-interval-time/72697)

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**Author:** [@AndKe](https://discourse.nodered.org/u/AndKe)\
**Replies:** 5\
**Last updated:** [26 December 2022 09:14 UTC](https://discourse.nodered.org/t/is-it-possible-to-delay-payload-accept-payload-update-forward-on-a-certain-time-interval-time/72697 "2022-12-26T09:14:01Z")

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my MQTT source can produce packets at a random intervals. I have no need for fast logging. Is it possible to make node-red provide this logic? at 10:10 , 10:20, 10:30 a certain payload object arrives, but only at 00…

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## [How to download and use bluetooth node?](https://discourse.nodered.org/t/how-to-download-and-use-bluetooth-node/68656)

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**Author:** [@choiprin0310](https://discourse.nodered.org/u/choiprin0310)\
**Replies:** 4\
**Last updated:** [26 December 2022 00:59 UTC](https://discourse.nodered.org/t/how-to-download-and-use-bluetooth-node/68656 "2022-12-26T00:59:52Z")

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I'm trying to download any 'BLE node' in palette. I want to use BLE node in my node-red. I know i can use BLE node with RED-Mobile but I want to control BLE devices with my PC. That's why i need BLE node. There's ma…

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## [Serial output not working with Eltako gateway FGW14](https://discourse.nodered.org/t/serial-output-not-working-with-eltako-gateway-fgw14/72703)

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**Author:** [@magnusso](https://discourse.nodered.org/u/magnusso)\
**Replies:** 0\
**Last updated:** [26 December 2022 00:01 UTC](https://discourse.nodered.org/t/serial-output-not-working-with-eltako-gateway-fgw14/72703 "2022-12-26T00:01:23Z")

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I'm using a Eltako USB gateway to control Eltako devices in Node Red. To date, I've used a USB300. However, the bus connected gateway FGW14 would serve my purpose much better. I've come this far, incoming messages to Nod…

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## [Scene activation and storage in NodeRED](https://discourse.nodered.org/t/scene-activation-and-storage-in-nodered/72660)

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**Author:** [@syoma755](https://discourse.nodered.org/u/syoma755)\
**Replies:** 2\
**Last updated:** [25 December 2022 22:24 UTC](https://discourse.nodered.org/t/scene-activation-and-storage-in-nodered/72660 "2022-12-25T22:24:28Z")

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Hello I'm a long time user of NodeRED but have used it for quite simple things in my home automation so far and now I'm trying to do something more complex, than I can handle, therefore some help is needed. So the thin…

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## [Node-red docker container and puppeteer](https://discourse.nodered.org/t/node-red-docker-container-and-puppeteer/72694)

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**Author:** [@hoolahoous](https://discourse.nodered.org/u/hoolahoous)\
**Replies:** 2\
**Last updated:** [25 December 2022 20:36 UTC](https://discourse.nodered.org/t/node-red-docker-container-and-puppeteer/72694 "2022-12-25T20:36:51Z")

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I am migrating my node-red from bare metal to docker container. I have mounted my puppeteer scrips on node-red container and i can see the files (and node-modules folder correctly). On my bare metal, I launch puppeteer …

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## [Test connection with Moxa Nport 5110 not working](https://discourse.nodered.org/t/test-connection-with-moxa-nport-5110-not-working/72692)

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**Author:** [@GuE](https://discourse.nodered.org/u/GuE)\
**Replies:** 0\
**Last updated:** [25 December 2022 19:54 UTC](https://discourse.nodered.org/t/test-connection-with-moxa-nport-5110-not-working/72692 "2022-12-25T19:54:31Z")

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Hello. ... trying to find the problem on my test set up. Using RPI4 with node-red to connect the my Moxa NP5110 with TCP and to get some test data I connected a PC with Modbus Sim to my Moxa. Followed the moxa driv…

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## [Compare hours of different days](https://discourse.nodered.org/t/compare-hours-of-different-days/72659)

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**Author:** [@Cyber](https://discourse.nodered.org/u/Cyber)\
**Replies:** 5\
**Last updated:** [25 December 2022 14:04 UTC](https://discourse.nodered.org/t/compare-hours-of-different-days/72659 "2022-12-25T14:04:46Z")

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the following code in a function: var time = new Date(); var hour = time.getHours(); var checkhour = new Date(1671950776).getHours(); node.warn("current hour: " + hour); node.warn("checkhour: " + checkhour); if (hour \>…

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## [Launching Python Selenium script from Node Red](https://discourse.nodered.org/t/launching-python-selenium-script-from-node-red/72680)

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**Author:** [@gacekk](https://discourse.nodered.org/u/gacekk)\
**Replies:** 1\
**Last updated:** [25 December 2022 14:00 UTC](https://discourse.nodered.org/t/launching-python-selenium-script-from-node-red/72680 "2022-12-25T14:00:13Z")

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I am running a Windows 10 PC as home server, and have Node red installed on that. I noticed that my IP cameras change video coding once they loose power. On the one hand I have developed a flow that checks the Frigate AP…

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## [Get two same payloads at the same time instead than one](https://discourse.nodered.org/t/get-two-same-payloads-at-the-same-time-instead-than-one/72644)

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**Author:** [@TiaPreve](https://discourse.nodered.org/u/TiaPreve)\
**Replies:** 1\
**Last updated:** [25 December 2022 13:47 UTC](https://discourse.nodered.org/t/get-two-same-payloads-at-the-same-time-instead-than-one/72644 "2022-12-25T13:47:34Z")

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Hi there. When I use an inject node I receive only one payload, instead when I use any kind of node that send a status like Openhab I receive 2 payloads exactly the same each other at the same time. How can I avoid thi…

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## [Can I set Node-RED webpage to open without the side panels?](https://discourse.nodered.org/t/can-i-set-node-red-webpage-to-open-without-the-side-panels/72681)

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**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\
**Replies:** 0\
**Last updated:** [25 December 2022 12:23 UTC](https://discourse.nodered.org/t/can-i-set-node-red-webpage-to-open-without-the-side-panels/72681 "2022-12-25T12:23:46Z")

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When opening the page on a smaller screen, like a phone or a tablet, the info side panel takes too much space. Is it possible to set it to open without them on those devices? Or even always without them, since it's easy …

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