# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1015

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

**Page:** 1016

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## [Thought / question about when building dashboards](https://discourse.nodered.org/t/thought-question-about-when-building-dashboards/31859)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [21 August 2020 23:29 UTC](https://discourse.nodered.org/t/thought-question-about-when-building-dashboards/31859 "2020-08-21T23:29:02Z")

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I know there is little/no correlation between the edit tabs and the dashboard. Ok, none. But for what stuff I have done, I usually make a tab and that tab has its own dashboard page. When I am adding new dashboard thi…

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## [Content-Type of HTTP In node](https://discourse.nodered.org/t/content-type-of-http-in-node/30720)

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**Author:** [@augjoh](https://discourse.nodered.org/u/augjoh)\
**Replies:** 9\
**Last updated:** [21 August 2020 22:55 UTC](https://discourse.nodered.org/t/content-type-of-http-in-node/30720 "2020-08-21T22:55:26Z")

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Our project runs node-red standalone and provides an OCSP (RFC 6960) service. The OCSP requests are received using an HTTP In node. When receiving an HTTP POST request with Content-Type: application/ocsp-request, the bod…

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## [Unable to resolve host \<Raspberry Pi Host name\>: Name or service not known](https://discourse.nodered.org/t/unable-to-resolve-host-raspberry-pi-host-name-name-or-service-not-known/19900)

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**Author:** [@AungKL](https://discourse.nodered.org/u/AungKL)\
**Replies:** 6\
**Last updated:** [21 August 2020 21:27 UTC](https://discourse.nodered.org/t/unable-to-resolve-host-raspberry-pi-host-name-name-or-service-not-known/19900 "2020-08-21T21:27:41Z")

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Hello, I have Raspberry Pi (model B plus v1.2) and configure as headless system with VNC. When I start the node red, I found this message as follow: sudo: unable to resolve host RPiBPlusv12: Name or service not known …

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## [Downloading csv file generated by MySQL database after pressing a form button](https://discourse.nodered.org/t/downloading-csv-file-generated-by-mysql-database-after-pressing-a-form-button/31486)

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**Author:** [@SinZapatillas](https://discourse.nodered.org/u/SinZapatillas)\
**Replies:** 30\
**Last updated:** [21 August 2020 19:39 UTC](https://discourse.nodered.org/t/downloading-csv-file-generated-by-mysql-database-after-pressing-a-form-button/31486 "2020-08-21T19:39:06Z")

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Hello! I want to download the file from the node-red dashborad from a remote computer, into the download folder of it. Right now Im using an static IP but not when the product is launched. I have used the flow @Steve-Mc…

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## [Content Security Policy fails](https://discourse.nodered.org/t/content-security-policy-fails/31694)

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**Author:** [@clickworkorange](https://discourse.nodered.org/u/clickworkorange)\
**Replies:** 6\
**Last updated:** [21 August 2020 16:38 UTC](https://discourse.nodered.org/t/content-security-policy-fails/31694 "2020-08-21T16:38:49Z")

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Just coming back to Node-RED after a long absence, and I find that either my Node-RED server (v0.20.5) no longer sets the correct Content Security Policy header, my browser no longer recognises it (Firefox 68.11.0esr), o…

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## [Custom url for my flow](https://discourse.nodered.org/t/custom-url-for-my-flow/31820)

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**Author:** [@RobW](https://discourse.nodered.org/u/RobW)\
**Replies:** 13\
**Last updated:** [21 August 2020 16:19 UTC](https://discourse.nodered.org/t/custom-url-for-my-flow/31820 "2020-08-21T16:19:50Z")

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Hi! I have discovered Node Red and have been playing around with a lot of fun. I have created a weather site with some info on it like temp, humidity, wind. But....I can't figure out how to make it accessible through 1…

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## [Injecting multiple JSON objects in a database](https://discourse.nodered.org/t/injecting-multiple-json-objects-in-a-database/31842)

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**Author:** [@SinZapatillas](https://discourse.nodered.org/u/SinZapatillas)\
**Replies:** 0\
**Last updated:** [21 August 2020 15:20 UTC](https://discourse.nodered.org/t/injecting-multiple-json-objects-in-a-database/31842 "2020-08-21T15:20:48Z")

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Hello! I have a data logger in a device that captures dat in an SD at a 100Hz data rate from 6 sensors. Every 0.01s I collect the data and create a JSON object that looks like this: lectura = { "ID" : 1, "Fuerza" : …

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## [Unable to start node-red on boot on a Raspberry pi 4](https://discourse.nodered.org/t/unable-to-start-node-red-on-boot-on-a-raspberry-pi-4/31838)

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**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 3\
**Last updated:** [21 August 2020 15:17 UTC](https://discourse.nodered.org/t/unable-to-start-node-red-on-boot-on-a-raspberry-pi-4/31838 "2020-08-21T15:17:10Z")

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Hi forum. Not sure whether this is hardware-related, but I'm not able to see my node-red run on boot all the times i boot it. It dows a good 50% of times (I'm afraid too unreliable). I'm on the latest raspby OS and on …

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## [Unstable PWM / Jittery Servo control Pi 3](https://discourse.nodered.org/t/unstable-pwm-jittery-servo-control-pi-3/31840)

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**Author:** [@fraser](https://discourse.nodered.org/u/fraser)\
**Replies:** 1\
**Last updated:** [21 August 2020 14:53 UTC](https://discourse.nodered.org/t/unstable-pwm-jittery-servo-control-pi-3/31840 "2020-08-21T14:53:46Z")

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I'm using a Pi3 and the rpi-GPIO node to control a servo. The servo is connected to pin 12 (GPIO 18/PWM0) The output doesn't seem to be stable, the servo moves but jitters when it should be still, suggesting that the PWM…

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## [\[newbie\] How to make a node-red flow for this bash-command](https://discourse.nodered.org/t/newbie-how-to-make-a-node-red-flow-for-this-bash-command/31834)

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**Author:** [@hugocoolens](https://discourse.nodered.org/u/hugocoolens)\
**Replies:** 6\
**Last updated:** [21 August 2020 14:38 UTC](https://discourse.nodered.org/t/newbie-how-to-make-a-node-red-flow-for-this-bash-command/31834 "2020-08-21T14:38:52Z")

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I'm trying to make the following command work in node-red: /usr/bin/mpg321 http://progressive-audio.lwc.vrtcdn.be/content/fixed/11\_11niws-snip\_lo.mp3 It doesn't seem a matter of just putting the command in an exec-node…

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## [Using the msg.payload to change ui template](https://discourse.nodered.org/t/using-the-msg-payload-to-change-ui-template/2829)

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**Author:** [@kebebs](https://discourse.nodered.org/u/kebebs)\
**Replies:** 19\
**Last updated:** [21 August 2020 14:17 UTC](https://discourse.nodered.org/t/using-the-msg-payload-to-change-ui-template/2829 "2020-08-21T14:17:19Z")

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I am trying to use the msg.payload to draw circles on an image in the ui template. The image I have got below is not how its gonna look to its a basic concept. If I get data that says 'step 1' for example, I want a circl…

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## [Display active alarms (Booleans) on dashboard](https://discourse.nodered.org/t/display-active-alarms-booleans-on-dashboard/31819)

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**Author:** [@ArneR](https://discourse.nodered.org/u/ArneR)\
**Replies:** 4\
**Last updated:** [21 August 2020 13:45 UTC](https://discourse.nodered.org/t/display-active-alarms-booleans-on-dashboard/31819 "2020-08-21T13:45:53Z")

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Hello everyone I have a list of 50 possible alarms. These come in via a boolean (1 per alarm). I am trying to display the active alarms on the dashboard via the UI-Template-Node. Is there an easy way to accomplish this…

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## [Bug report on errors shown in node?](https://discourse.nodered.org/t/bug-report-on-errors-shown-in-node/31833)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 5\
**Last updated:** [21 August 2020 13:37 UTC](https://discourse.nodered.org/t/bug-report-on-errors-shown-in-node/31833 "2020-08-21T13:37:36Z")

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I am not having luck with writing code in a function node. (My fault/problem) But what is happening seems strange. If I am on the line, there is no error shown. But if I move to another line, the line which I was on …

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## [Multiple email recipients](https://discourse.nodered.org/t/multiple-email-recipients/31798)

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**Author:** [@lesmar96](https://discourse.nodered.org/u/lesmar96)\
**Replies:** 3\
**Last updated:** [21 August 2020 13:36 UTC](https://discourse.nodered.org/t/multiple-email-recipients/31798 "2020-08-21T13:36:44Z")

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Hello, My node -red code is sending emails properly, but we would like to add a more than one email address for it to send to. What is the recommend way of doing this? Thanks!

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## [Multiple Routers used at Once](https://discourse.nodered.org/t/multiple-routers-used-at-once/31556)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 39\
**Last updated:** [21 August 2020 13:12 UTC](https://discourse.nodered.org/t/multiple-routers-used-at-once/31556 "2020-08-21T13:12:57Z")

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HI guys, I\`m trying to use Node Red to submit the same data from a sensor to two different routers at the same time, is there a specific node that allows me to do this? Thank you all in advance

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## [Set variable in Change Node JSON](https://discourse.nodered.org/t/set-variable-in-change-node-json/31829)

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**Author:** [@Hubertus](https://discourse.nodered.org/u/Hubertus)\
**Replies:** 2\
**Last updated:** [21 August 2020 12:28 UTC](https://discourse.nodered.org/t/set-variable-in-change-node-json/31829 "2020-08-21T12:28:27Z")

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may bee a simple question - i have a change node: with the following JSON: { "args": \[ 21 \] } now i have to set the "21" dynamicly e.g. with msg.payload. If i do so i get an error "Invalid Token". O…

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## [In nodered how to send data integer (four bytes) to tcp device](https://discourse.nodered.org/t/in-nodered-how-to-send-data-integer-four-bytes-to-tcp-device/31826)

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**Author:** [@RAHUL](https://discourse.nodered.org/u/RAHUL)\
**Replies:** 1\
**Last updated:** [21 August 2020 12:11 UTC](https://discourse.nodered.org/t/in-nodered-how-to-send-data-integer-four-bytes-to-tcp-device/31826 "2020-08-21T12:11:17Z")

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I was integrating with the teltonica GPS device while integrating codec8 GPS device. So, as per document I have to send number of data received as integer (four bytes), means the number of data in the packet in integer(f…

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## [Set range on slider](https://discourse.nodered.org/t/set-range-on-slider/31794)

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**Author:** [@ltcolumbo](https://discourse.nodered.org/u/ltcolumbo)\
**Replies:** 5\
**Last updated:** [21 August 2020 11:48 UTC](https://discourse.nodered.org/t/set-range-on-slider/31794 "2020-08-21T11:48:04Z")

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Hi - is there a way to pass a max and min value to the dashboard slider? Thanks.

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## [iHome DIY Nest UI Smart Thermostat System c/w Cloud using RPi Zero](https://discourse.nodered.org/t/ihome-diy-nest-ui-smart-thermostat-system-c-w-cloud-using-rpi-zero/31822)

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**Author:** [@ionware1a](https://discourse.nodered.org/u/ionware1a)\
**Replies:** 0\
**Last updated:** [21 August 2020 11:05 UTC](https://discourse.nodered.org/t/ihome-diy-nest-ui-smart-thermostat-system-c-w-cloud-using-rpi-zero/31822 "2020-08-21T11:05:49Z")

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Search Flows - Collections - for iHome Smart Thermostat. Full control and monitoring hvac a/c including Temperature Controls, Occupancy, Light and Humidity. Also has full Ubidots Cloud capabilities. For influencers - …

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## [If this then statement in node red](https://discourse.nodered.org/t/if-this-then-statement-in-node-red/31809)

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**Author:** [@jepe63](https://discourse.nodered.org/u/jepe63)\
**Replies:** 6\
**Last updated:** [21 August 2020 11:13 UTC](https://discourse.nodered.org/t/if-this-then-statement-in-node-red/31809 "2020-08-21T11:13:03Z")

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Hi all , just new here , i've searched here but didn't find the answer (yet) so maybe somone can help. I managed to setup node red with the Nora (google home) plugin and it's working fine with my lamps. I'm now trying …

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## [Add a new Flow to the nr Library](https://discourse.nodered.org/t/add-a-new-flow-to-the-nr-library/31659)

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**Author:** [@ionware1a](https://discourse.nodered.org/u/ionware1a)\
**Replies:** 2\
**Last updated:** [21 August 2020 11:10 UTC](https://discourse.nodered.org/t/add-a-new-flow-to-the-nr-library/31659 "2020-08-21T11:10:47Z")

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I want to share my smart thermostat flow(s) to the nr flow library. I sign in and fill in the form, copy the json code etc and hit the 'Create Flow' .. and nothing happens?! :roll\_eyes: "This will create a private gist…

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## [Clock from Phone](https://discourse.nodered.org/t/clock-from-phone/31812)

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**Author:** [@Bruno](https://discourse.nodered.org/u/Bruno)\
**Replies:** 15\
**Last updated:** [21 August 2020 10:29 UTC](https://discourse.nodered.org/t/clock-from-phone/31812 "2020-08-21T10:29:14Z")

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Hello everybody. First of all , I want to thank you for all the great informations posted on this forum ! I made this post because I am working to an app using node red, and I don't really now how to proceed with this : …

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## [Change background color](https://discourse.nodered.org/t/change-background-color/31807)

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**Author:** [@makram](https://discourse.nodered.org/u/makram)\
**Replies:** 2\
**Last updated:** [21 August 2020 10:10 UTC](https://discourse.nodered.org/t/change-background-color/31807 "2020-08-21T10:10:57Z")

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How can i change the background color of a label in node red

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## [Connect two node-reds](https://discourse.nodered.org/t/connect-two-node-reds/31784)

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**Author:** [@Roger](https://discourse.nodered.org/u/Roger)\
**Replies:** 10\
**Last updated:** [21 August 2020 08:28 UTC](https://discourse.nodered.org/t/connect-two-node-reds/31784 "2020-08-21T08:28:52Z")

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Hi all! Somebody knows how can I transmit the data that I'm receiving in one node red to the node red that I open in other computer? I'm trying it with MQTT but I think that it's not the solution for what I need.

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## [Setting up email send node from the Dashboard (dynamic credentials)](https://discourse.nodered.org/t/setting-up-email-send-node-from-the-dashboard-dynamic-credentials/31814)

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**Author:** [@tymarbut](https://discourse.nodered.org/u/tymarbut)\
**Replies:** 0\
**Last updated:** [21 August 2020 07:52 UTC](https://discourse.nodered.org/t/setting-up-email-send-node-from-the-dashboard-dynamic-credentials/31814 "2020-08-21T07:52:38Z")

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This isn't really a Dashboard question (just involves the Dashboard), so I'll post in General: If we disregard the actual advisability of entering an email address and its password into a dashboard (that's its own issue…

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## [Problem getting Value from SQL SELECT](https://discourse.nodered.org/t/problem-getting-value-from-sql-select/31761)

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**Author:** [@Chorum](https://discourse.nodered.org/u/Chorum)\
**Replies:** 18\
**Last updated:** [21 August 2020 05:58 UTC](https://discourse.nodered.org/t/problem-getting-value-from-sql-select/31761 "2020-08-21T05:58:44Z")

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Hello, i would like to read a value from a SQL database and use the value in my flow. its my first attempt to do that and i have a Problem, Maybe based on msg structure misunterdstanding. Here is a Picture of the part …

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## [Remote Browser Audio](https://discourse.nodered.org/t/remote-browser-audio/31802)

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**Author:** [@jbroome](https://discourse.nodered.org/u/jbroome)\
**Replies:** 1\
**Last updated:** [20 August 2020 23:56 UTC](https://discourse.nodered.org/t/remote-browser-audio/31802 "2020-08-20T23:56:55Z")

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Is there a known issue trying to get an audio output node to work if using a remote connection?

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## [Stuck on "Loading Palette" Screen](https://discourse.nodered.org/t/stuck-on-loading-palette-screen/31799)

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**Author:** [@jbroome](https://discourse.nodered.org/u/jbroome)\
**Replies:** 2\
**Last updated:** [20 August 2020 23:39 UTC](https://discourse.nodered.org/t/stuck-on-loading-palette-screen/31799 "2020-08-20T23:39:40Z")

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How would I go about troubleshooting the home page hanging up on the "Loading Palette" screen?

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## [Communication with domino printer](https://discourse.nodered.org/t/communication-with-domino-printer/31791)

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**Author:** [@Everaldo](https://discourse.nodered.org/u/Everaldo)\
**Replies:** 6\
**Last updated:** [20 August 2020 22:45 UTC](https://discourse.nodered.org/t/communication-with-domino-printer/31791 "2020-08-20T22:45:44Z")

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Hello demigods! I'm working to send data from node-red to a domino printer. The protocol is CodeNet and from what I understand I have to open the tcp door and send a character frame. Can you help me? Printer: Domino A…

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## [Creating json object in js file](https://discourse.nodered.org/t/creating-json-object-in-js-file/31623)

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**Author:** [@nodiaque](https://discourse.nodered.org/u/nodiaque)\
**Replies:** 2\
**Last updated:** [20 August 2020 20:13 UTC](https://discourse.nodered.org/t/creating-json-object-in-js-file/31623 "2020-08-20T20:13:24Z")

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Hello everyone, I'm currently trying to parse some data I receive from a request to send only what I want to the html file. I manage to get the data like I want, but when I try to create my object, I can't parse it prop…

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