# Latest **URL:** https://discourse.nodered.org/latest.md?page=1135 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 1136 --- ## [If with two variables](https://discourse.nodered.org/t/if-with-two-variables/23405)
**Author:** [@StevenRott](https://discourse.nodered.org/u/StevenRott)\ **Replies:** 1\ **Last updated:** [21 March 2020 11:54 UTC](https://discourse.nodered.org/t/if-with-two-variables/23405 "2020-03-21T11:54:48Z")
Hello, I have the follwing flow.....so I want to have that the function with "Heizungssteuerung" prove, if the temperaturedifference is 2or lower AND if the servo ist still on the degree that it should be.....and if so,… --- ## [Roller Shutter Template](https://discourse.nodered.org/t/roller-shutter-template/23399)
**Author:** [@c4yolli](https://discourse.nodered.org/u/c4yolli)\ **Replies:** 1\ **Last updated:** [21 March 2020 10:34 UTC](https://discourse.nodered.org/t/roller-shutter-template/23399 "2020-03-21T10:34:04Z")
Hi there, i am new to Node-RED. Yesterday i tried my first flow and was missing a "Roller Shutter Template". So i made one :slight\_smile: It is a CSS animated SVG Image, which shows you the position of the Roller Shutt… --- ## [Help this beginner :)](https://discourse.nodered.org/t/help-this-beginner/23359)
**Author:** [@lubbe5](https://discourse.nodered.org/u/lubbe5)\ **Replies:** 5\ **Last updated:** [21 March 2020 10:17 UTC](https://discourse.nodered.org/t/help-this-beginner/23359 "2020-03-21T10:17:31Z")
Hello my Name is James. 16 years old, and today I make my first node-red project. I'am a beginner, and got my first Arduino from my mom :slight\_smile: . I think you al start just like me, or you bought your first arduin… --- ## [Help with node-red-contrib-dsm and timeout](https://discourse.nodered.org/t/help-with-node-red-contrib-dsm-and-timeout/22609)
**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\ **Replies:** 10\ **Last updated:** [21 March 2020 10:03 UTC](https://discourse.nodered.org/t/help-with-node-red-contrib-dsm-and-timeout/22609 "2020-03-21T10:03:57Z")
I am trying to get my head round node-red-contrib-dsm and in particular a case where I have a simple situation that the machine cycles through states based on incoming signals, but on one of them I want a timeout such th… --- ## [Log files in docker node red](https://discourse.nodered.org/t/log-files-in-docker-node-red/23396)
**Author:** [@tobiasselin](https://discourse.nodered.org/u/tobiasselin)\ **Replies:** 0\ **Last updated:** [21 March 2020 09:21 UTC](https://discourse.nodered.org/t/log-files-in-docker-node-red/23396 "2020-03-21T09:21:24Z")
I've had a couple node red instances that I run in docker where the log.json file has grown to tens of GBs in only a few weeks/months. Are there environment variables in docker that can be used to limit log file size? Or… --- ## [Trying to build message with CHANGE node. Not working](https://discourse.nodered.org/t/trying-to-build-message-with-change-node-not-working/23393)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 4\ **Last updated:** [21 March 2020 08:37 UTC](https://discourse.nodered.org/t/trying-to-build-message-with-change-node-not-working/23393 "2020-03-21T08:37:41Z")
(And template node.) This is the flow: (Basic) \[{"id":"15ae0152.83044f","type":"inject","z":"675e227d.d158b4","name":"Weekly","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"50 23 \* \* 0","once":fa… --- ## [Multiple output based on payload byte](https://discourse.nodered.org/t/multiple-output-based-on-payload-byte/23371)
**Author:** [@ortegafernando](https://discourse.nodered.org/u/ortegafernando)\ **Replies:** 4\ **Last updated:** [21 March 2020 07:40 UTC](https://discourse.nodered.org/t/multiple-output-based-on-payload-byte/23371 "2020-03-21T07:40:17Z")
Hi, I have been fighting with something and I cannot solve it. I have a system of reception of messages by MQTT of several sensors. One of the bytes of this message (it is a buffer) indicates the "TYPE" of the message/s… --- ## [Credentials could not be decrypted](https://discourse.nodered.org/t/credentials-could-not-be-decrypted/23307)
**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\ **Replies:** 6\ **Last updated:** [21 March 2020 01:44 UTC](https://discourse.nodered.org/t/credentials-could-not-be-decrypted/23307 "2020-03-21T01:44:34Z")
I have this repeating problem with the credentials file not being able to be decrypted. There are repeating instances where my flow would lock up I'm suspecting due to lack of system resources, BUT main issue relating … --- ## [Change node / Telegram message](https://discourse.nodered.org/t/change-node-telegram-message/23365)
**Author:** [@duffy6](https://discourse.nodered.org/u/duffy6)\ **Replies:** 3\ **Last updated:** [21 March 2020 01:29 UTC](https://discourse.nodered.org/t/change-node-telegram-message/23365 "2020-03-21T01:29:58Z")
My MQTT data looks like this: {"topic": "heating/Hz system/flow temperature", "payload":33, "qos":0, "retain":false,"\_msgid": "446dfe39.cc451"} How could a change or function node look like that I can send the payload … --- ## [Help on message construction in a TRIGGER node](https://discourse.nodered.org/t/help-on-message-construction-in-a-trigger-node/23381)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 1\ **Last updated:** [20 March 2020 23:59 UTC](https://discourse.nodered.org/t/help-on-message-construction-in-a-trigger-node/23381 "2020-03-20T23:59:40Z")
This is a broken down flow of my problem. Putting aside the change node at the top: Press the inject node and get a message saying 192.168.0.254 is online. The trigger node waits 10 seconds and if nothing is received … --- ## [Permissions settings when using Twitter OpenID authentification](https://discourse.nodered.org/t/permissions-settings-when-using-twitter-openid-authentification/23376)
**Author:** [@kybsmiling](https://discourse.nodered.org/u/kybsmiling)\ **Replies:** 0\ **Last updated:** [20 March 2020 21:51 UTC](https://discourse.nodered.org/t/permissions-settings-when-using-twitter-openid-authentification/23376 "2020-03-20T21:51:23Z")
If I am going to use Twitter OpenID authentication, do I still need to put all users into settings.js to give them their permissions? Is this correct, or do I miss something? If I would set up my own OpenID Server (e.g… --- ## [Saving button background color while disabled](https://discourse.nodered.org/t/saving-button-background-color-while-disabled/23372)
**Author:** [@kocherjj](https://discourse.nodered.org/u/kocherjj)\ **Replies:** 3\ **Last updated:** [20 March 2020 21:40 UTC](https://discourse.nodered.org/t/saving-button-background-color-while-disabled/23372 "2020-03-20T21:40:43Z")
I have a set of buttons that send different state commands to a controlled device. I want the button state to reflect the realtime status of the controlled device, so I am using the feedback to set the correct button as… --- ## [\[FAQ\] Video in dashboard - decision tree](https://discourse.nodered.org/t/faq-video-in-dashboard-decision-tree/23373)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 0\ **Last updated:** [20 March 2020 21:03 UTC](https://discourse.nodered.org/t/faq-video-in-dashboard-decision-tree/23373 "2020-03-20T21:03:45Z")
Hi folks, Lots of users are struggling to create a Node-RED flow to show video (e.g. from a camera) in their dashboard. Indeed there is not a single solution that fits all use cases. So I tried to create a decision tr… --- ## [Global context mutability](https://discourse.nodered.org/t/global-context-mutability/22407)
**Author:** [@shooftie](https://discourse.nodered.org/u/shooftie)\ **Replies:** 4\ **Last updated:** [20 March 2020 20:28 UTC](https://discourse.nodered.org/t/global-context-mutability/22407 "2020-03-20T20:28:43Z")
I have a function-file node in which I would like to use configs which are stored in the global context. I am struggling because my approach appears to mutate the global context which I do not want. I am not sure whethe… --- ## [ESP Tasmota + IR Sensor](https://discourse.nodered.org/t/esp-tasmota-ir-sensor/23218)
**Author:** [@pedroware](https://discourse.nodered.org/u/pedroware)\ **Replies:** 19\ **Last updated:** [20 March 2020 18:39 UTC](https://discourse.nodered.org/t/esp-tasmota-ir-sensor/23218 "2020-03-20T18:39:38Z")
Hi, I request help from Portugal. I made a protection with an ESP w / Tasmota + IR Sensor. to do some functions with the TV control in the room, like turning off the light in the room ... But I am not able to integ… --- ## [Node-red-contrib-mic : how to use it?](https://discourse.nodered.org/t/node-red-contrib-mic-how-to-use-it/23225)
**Author:** [@hammeronthenet](https://discourse.nodered.org/u/hammeronthenet)\ **Replies:** 8\ **Last updated:** [20 March 2020 18:11 UTC](https://discourse.nodered.org/t/node-red-contrib-mic-how-to-use-it/23225 "2020-03-20T18:11:21Z")
Hi all, this is my first post here, I'm exploring nodered and i'm very happy with it :slight\_smile: . I'm wondering how to use the component in the object ( node-red-contrib-mic ). I'm using it on a Raspberry PI with n… --- ## [\[Off Topic\] Working from home](https://discourse.nodered.org/t/off-topic-working-from-home/23362)
**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\ **Replies:** 0\ **Last updated:** [20 March 2020 17:50 UTC](https://discourse.nodered.org/t/off-topic-working-from-home/23362 "2020-03-20T17:50:18Z")
OK, so this is a little off-topic but in the hope that it may help some people who find themselves working from home for the first time I thought I would share it. This article was taken from another article that I wrot… --- ## [Could someone help me with this error?](https://discourse.nodered.org/t/could-someone-help-me-with-this-error/23336)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 2\ **Last updated:** [20 March 2020 11:14 UTC](https://discourse.nodered.org/t/could-someone-help-me-with-this-error/23336 "2020-03-20T11:14:39Z")
More to the point: Which node? Normally errors are caught and I get a message telling me which node, etc. This doesn't have any of the usual stuff like that. {"message":"TypeError: Cannot read property 'split' of und… --- ## [Advanced dashboard layout](https://discourse.nodered.org/t/advanced-dashboard-layout/23305)
**Author:** [@rogeriolucas](https://discourse.nodered.org/u/rogeriolucas)\ **Replies:** 9\ **Last updated:** [20 March 2020 06:13 UTC](https://discourse.nodered.org/t/advanced-dashboard-layout/23305 "2020-03-20T06:13:58Z")
Hello everyone, I'm new to node-red and I need help with layout settings that, as much as I have researched, I haven't figured out how to do it. I would like to create a layout by placing a transparent space like this … --- ## [Chart.js node not working](https://discourse.nodered.org/t/chart-js-node-not-working/23333)
**Author:** [@axelcamos](https://discourse.nodered.org/u/axelcamos)\ **Replies:** 0\ **Last updated:** [19 March 2020 23:32 UTC](https://discourse.nodered.org/t/chart-js-node-not-working/23333 "2020-03-19T23:32:28Z")
Hi every one! I'm want to use chart.js node (https://flows.nodered.org/node/node-red-contrib-chartjs), but it doesn't works, don't show anything on the chart. What i'm trying to do it's show the temperature in y axis an… --- ## [IE11 All nodes from all flows shown at once (each tab looks the same)](https://discourse.nodered.org/t/ie11-all-nodes-from-all-flows-shown-at-once-each-tab-looks-the-same/23313)
**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\ **Replies:** 7\ **Last updated:** [19 March 2020 23:13 UTC](https://discourse.nodered.org/t/ie11-all-nodes-from-all-flows-shown-at-once-each-tab-looks-the-same/23313 "2020-03-19T23:13:34Z")
I'm sure this will be something on my setup but I thought I'd post it to see if anyone else is getting this? and what (if anything) the DEVs would like me to try / check before I rebuild / repair. Normally I don't use I… --- ## [Schedule something for 2 hours in future?](https://discourse.nodered.org/t/schedule-something-for-2-hours-in-future/23329)
**Author:** [@brettyj](https://discourse.nodered.org/u/brettyj)\ **Replies:** 3\ **Last updated:** [19 March 2020 22:14 UTC](https://discourse.nodered.org/t/schedule-something-for-2-hours-in-future/23329 "2020-03-19T22:14:29Z")
Hey, Wondering if anyone has a solution to this. So I have an event that when fires uses a timeout node to countdown for 2 hours before I need to turn off the device. It works fine, but the problem with any timeout tha… --- ## [All flows gone after restart of NR](https://discourse.nodered.org/t/all-flows-gone-after-restart-of-nr/23327)
**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\ **Replies:** 5\ **Last updated:** [19 March 2020 21:28 UTC](https://discourse.nodered.org/t/all-flows-gone-after-restart-of-nr/23327 "2020-03-19T21:28:08Z")
Hi folks, I ve no idea what happened. When I restart nr all flows are gone. No matter how often I deploy flows, changes or whatever -\> after nr restart all the flows are gone. --- ## [Switching Dashboard tabs by button](https://discourse.nodered.org/t/switching-dashboard-tabs-by-button/23319)
**Author:** [@Birchwood](https://discourse.nodered.org/u/Birchwood)\ **Replies:** 1\ **Last updated:** [19 March 2020 14:19 UTC](https://discourse.nodered.org/t/switching-dashboard-tabs-by-button/23319 "2020-03-19T14:19:26Z")
Hello, I'm trying to get a function where i can choose the Dashboard Tab via diefferent buttons. What i mean i have a startind dashboard, where i can choose between 3 buttons. Button 1 shows Dashboard x, Button 2 dash… --- ## [How to copy credentials in node-red flow?](https://discourse.nodered.org/t/how-to-copy-credentials-in-node-red-flow/23315)
**Author:** [@hsn548](https://discourse.nodered.org/u/hsn548)\ **Replies:** 8\ **Last updated:** [19 March 2020 13:54 UTC](https://discourse.nodered.org/t/how-to-copy-credentials-in-node-red-flow/23315 "2020-03-19T13:54:31Z")
I have a mqtt node and in the mqtt node, I have all the credentials e.g. password, username etc and I am taking the password and username from the environment variables like this $(Password). Now when i export the flow… --- ## [Context store and array](https://discourse.nodered.org/t/context-store-and-array/23261)
**Author:** [@krzydec](https://discourse.nodered.org/u/krzydec)\ **Replies:** 5\ **Last updated:** [19 March 2020 13:18 UTC](https://discourse.nodered.org/t/context-store-and-array/23261 "2020-03-19T13:18:51Z")
Hello I'm experiencing a strange behaviour when reading an array from the context store. The array is altered in the context store just by reading it inside the function block. Please can someone explain to me why thi… --- ## [Timeout node does not send payload](https://discourse.nodered.org/t/timeout-node-does-not-send-payload/23316)
**Author:** [@877](https://discourse.nodered.org/u/877)\ **Replies:** 0\ **Last updated:** [19 March 2020 12:28 UTC](https://discourse.nodered.org/t/timeout-node-does-not-send-payload/23316 "2020-03-19T12:28:06Z")
Strange thing I have noticed with @scargill 's timeout node. When deploying, the 'unsafe' payload gets sent ok. But then after that the payload does not get sent when the node times-out. If I set a 'safe' payload i.e. … --- ## [Number in German format in dashboard (100.235,25) - how to?](https://discourse.nodered.org/t/number-in-german-format-in-dashboard-100-235-25-how-to/23236)
**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\ **Replies:** 15\ **Last updated:** [19 March 2020 11:34 UTC](https://discourse.nodered.org/t/number-in-german-format-in-dashboard-100-235-25-how-to/23236 "2020-03-19T11:34:20Z")
How can I format my msg.payload to be shown in German format in dashboard text node. not 100,235.25 but 100.235,25 for example. Any help appreciated. --- ## [Performance / Efficiencies - best practice?](https://discourse.nodered.org/t/performance-efficiencies-best-practice/23310)
**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\ **Replies:** 7\ **Last updated:** [19 March 2020 10:07 UTC](https://discourse.nodered.org/t/performance-efficiencies-best-practice/23310 "2020-03-19T10:07:42Z")
Having a lot of mqtt (out)nodes in my flows (must sound familiar), I was wondering if there is a best practice / best optimisation of (mqtt) node use. Is there a performance impact/optimisation of using a lot of mqtt ou… --- ## [Confused novice - 2 flows won't work when running on the same host without failing](https://discourse.nodered.org/t/confused-novice-2-flows-wont-work-when-running-on-the-same-host-without-failing/23272)
**Author:** [@fil](https://discourse.nodered.org/u/fil)\ **Replies:** 0\ **Last updated:** [18 March 2020 14:32 UTC](https://discourse.nodered.org/t/confused-novice-2-flows-wont-work-when-running-on-the-same-host-without-failing/23272 "2020-03-18T14:32:31Z")
I am expanding/developing a system i have had in place running on a pi-0-w using 6 sensors writting logs to csv files that has been running well for over a year I intend to employ significantly more sensors and log to a… [Previous page](https://discourse.nodered.org/latest.md?page=1134) [Next page](https://discourse.nodered.org/latest.md?page=1136)