# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1255

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

**Page:** 1256

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## [Gauge node \>3 colors](https://discourse.nodered.org/t/gauge-node-3-colors/13193)

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**Author:** [@HYPER](https://discourse.nodered.org/u/HYPER)\
**Replies:** 4\
**Last updated:** [12 July 2019 21:43 UTC](https://discourse.nodered.org/t/gauge-node-3-colors/13193 "2019-07-12T21:43:45Z")

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Is there a way to have more than three color zones on the gauge node? We are measuring pressure which will have both low and high danger zones. Ideally there would be 5 zones on the same gauge. Thanks for any help!

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## [Toggle visibility of typedInput field - layout issue](https://discourse.nodered.org/t/toggle-visibility-of-typedinput-field-layout-issue/12756)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 12\
**Last updated:** [12 July 2019 12:46 UTC](https://discourse.nodered.org/t/toggle-visibility-of-typedinput-field-layout-issue/12756 "2019-07-12T12:46:43Z")

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Hi folks, In my camera-viewer node I have a dropdown, where you can choose between two options (push and pull). For each of those options, another typedinput field should be displayed. So when you select the 'push' op…

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## [HEX color light state](https://discourse.nodered.org/t/hex-color-light-state/13168)

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**Author:** [@codycato1882](https://discourse.nodered.org/u/codycato1882)\
**Replies:** 14\
**Last updated:** [12 July 2019 12:23 UTC](https://discourse.nodered.org/t/hex-color-light-state/13168 "2019-07-12T12:23:45Z")

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I have a color picker for my lights, I also have a power button. how can I change the state of the button (on/off) based on the color hex value? I set a range of #000000 - #099999 and that work for most of the colors clo…

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## [Send email error: ECCONREFUSED](https://discourse.nodered.org/t/send-email-error-ecconrefused/13075)

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**Author:** [@FerranA](https://discourse.nodered.org/u/FerranA)\
**Replies:** 4\
**Last updated:** [12 July 2019 11:39 UTC](https://discourse.nodered.org/t/send-email-error-ecconrefused/13075 "2019-07-12T11:39:32Z")

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Hello everybody, I am trying to send an email but it gives me an error. I have tried the following possible solutions: Different accounts Changing the password (I read somwhere that if it's longer than 8 character cou…

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## [Extarcting values from XML files](https://discourse.nodered.org/t/extarcting-values-from-xml-files/13131)

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**Author:** [@darkdude](https://discourse.nodered.org/u/darkdude)\
**Replies:** 7\
**Last updated:** [12 July 2019 09:18 UTC](https://discourse.nodered.org/t/extarcting-values-from-xml-files/13131 "2019-07-12T09:18:30Z")

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I'm using Node Red to extract data from reports generated by some medical equipment. These reports are in general XML files. And while these devices do their medical job properly, they are really bad at making reports. …

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## [Opening shutter Schedule](https://discourse.nodered.org/t/opening-shutter-schedule/13151)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 18\
**Last updated:** [12 July 2019 07:42 UTC](https://discourse.nodered.org/t/opening-shutter-schedule/13151 "2019-07-12T07:42:54Z")

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Hi, I want to create an opening schedule for my home shutters. I am using light scheduler node for open and close but I am trying to open my shutters at half between 9h and 12h. I am searching a function to change the m…

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## [Object to specific string](https://discourse.nodered.org/t/object-to-specific-string/12789)

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**Author:** [@node-n00b](https://discourse.nodered.org/u/node-n00b)\
**Replies:** 3\
**Last updated:** [12 July 2019 03:45 UTC](https://discourse.nodered.org/t/object-to-specific-string/12789 "2019-07-12T03:45:11Z")

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Dear Community, i am using Node Red since 3 Months now and did a good learning on it. But i am stuck all day long, and not quite good @ js. I Have a SMS Gateway Which accepts a payload of: NUMBER\_TEXT\_. e.g: +46887656\_…

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## [Store data arduino to SQL SERVER](https://discourse.nodered.org/t/store-data-arduino-to-sql-server/13149)

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**Author:** [@Arul-B](https://discourse.nodered.org/u/Arul-B)\
**Replies:** 4\
**Last updated:** [12 July 2019 00:01 UTC](https://discourse.nodered.org/t/store-data-arduino-to-sql-server/13149 "2019-07-12T00:01:54Z")

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How to store data sensor from arduino to sql server ?, Thank you

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## [Raspberry Pi UART](https://discourse.nodered.org/t/raspberry-pi-uart/13185)

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**Author:** [@georgethomas08](https://discourse.nodered.org/u/georgethomas08)\
**Replies:** 3\
**Last updated:** [11 July 2019 18:02 UTC](https://discourse.nodered.org/t/raspberry-pi-uart/13185 "2019-07-11T18:02:47Z")

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Hi folks, I am new to Node RED and MQTT, I would like to know how to use Raspberry pi UART (ttyS0) in Node Red, I mean which block I have to use it. Help me please Kind Regards George

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## [Website returns "var temp = "24";" How to parse such a string into json](https://discourse.nodered.org/t/website-returns-var-temp-24-how-to-parse-such-a-string-into-json/13142)

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**Author:** [@kentsor](https://discourse.nodered.org/u/kentsor)\
**Replies:** 3\
**Last updated:** [11 July 2019 16:02 UTC](https://discourse.nodered.org/t/website-returns-var-temp-24-how-to-parse-such-a-string-into-json/13142 "2019-07-11T16:02:35Z")

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I'm trying to pull data out of the official Canadian weather service website. There is a script used on the site that returns the values used by the rest of the scripts to format the page as a javascript variable declara…

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## [Serial output not working](https://discourse.nodered.org/t/serial-output-not-working/13175)

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**Author:** [@Charlotte](https://discourse.nodered.org/u/Charlotte)\
**Replies:** 5\
**Last updated:** [11 July 2019 15:43 UTC](https://discourse.nodered.org/t/serial-output-not-working/13175 "2019-07-11T15:43:16Z")

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Hi, I try to communicate with a balance by serial communication RS232. I send a command "S\\r\\n" to get the current weight. It is working properly from my hyperterminal or from a Python script but I can't make it work …

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## [Possibility of extending (core) nodes?](https://discourse.nodered.org/t/possibility-of-extending-core-nodes/13165)

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**Author:** [@afelix](https://discourse.nodered.org/u/afelix)\
**Replies:** 6\
**Last updated:** [11 July 2019 15:41 UTC](https://discourse.nodered.org/t/possibility-of-extending-core-nodes/13165 "2019-07-11T15:41:11Z")

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I was wondering if it was possible to extend existing nodes with new functionality, where forking a node and sending a pull request for added functionality is not always a preferred option, nor would forking and keeping …

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## [Multiple object to Influxdb issue](https://discourse.nodered.org/t/multiple-object-to-influxdb-issue/13132)

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**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\
**Replies:** 11\
**Last updated:** [11 July 2019 14:30 UTC](https://discourse.nodered.org/t/multiple-object-to-influxdb-issue/13132 "2019-07-11T14:30:25Z")

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Hi All, i want to transmit data to Grafana by Influxdb : This is the msg.payload : \[{"channel":89,"type":"counter","unit":"null","value":435,"name":"hoursCell89"},{"channel":16,"type":"voltage","unit":"v","value":5.5,…

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## [Build a custom Logger](https://discourse.nodered.org/t/build-a-custom-logger/13173)

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**Author:** [@Symonn](https://discourse.nodered.org/u/Symonn)\
**Replies:** 4\
**Last updated:** [11 July 2019 14:24 UTC](https://discourse.nodered.org/t/build-a-custom-logger/13173 "2019-07-11T14:24:58Z")

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Hi, I'm using node-red quite a lot, and i'm planning to save all the logs that comes out from the nodes to a database, as i'm writing this post, i've learned how to create a custom log handler (settings.js) for the logs…

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## [Alexa talking back](https://discourse.nodered.org/t/alexa-talking-back/13162)

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**Author:** [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Replies:** 1\
**Last updated:** [11 July 2019 11:20 UTC](https://discourse.nodered.org/t/alexa-talking-back/13162 "2019-07-11T11:20:16Z")

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I have a temperature sensor monitoring the temperature of my boiler in node-red dashboard, I can also turn my boiler on or off with Alexa or node-red dashboard. Is it possible to ask Alexa to tell me the temperature of m…

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## [Error while starting new installed Node-red](https://discourse.nodered.org/t/error-while-starting-new-installed-node-red/13153)

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**Author:** [@Tarun](https://discourse.nodered.org/u/Tarun)\
**Replies:** 3\
**Last updated:** [11 July 2019 10:49 UTC](https://discourse.nodered.org/t/error-while-starting-new-installed-node-red/13153 "2019-07-11T10:49:25Z")

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I have installed Node-Red on a new Ubuntu 16.04.4 LTS on a VM as per the instructions mentioned in this link : https://diyprojects.io/node-red-installation-configuration-ubuntu-16-04-lts/#.XSbHkW4zZPZ But when I tried t…

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## [Alexa home skill node with Lifx Bulbs](https://discourse.nodered.org/t/alexa-home-skill-node-with-lifx-bulbs/13076)

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**Author:** [@codycato1882](https://discourse.nodered.org/u/codycato1882)\
**Replies:** 16\
**Last updated:** [9 July 2019 16:42 UTC](https://discourse.nodered.org/t/alexa-home-skill-node-with-lifx-bulbs/13076 "2019-07-09T16:42:58Z")

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Im using the Alexa-smart-home-v3 node. which has a payload HSV value for colors. My lifx node uses CSS for colors. Im using color converter node but it sometimes gives me some names like "lime or winter green" which the …

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## [How to enter a line after an exec node is started](https://discourse.nodered.org/t/how-to-enter-a-line-after-an-exec-node-is-started/12442)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 22\
**Last updated:** [11 July 2019 09:58 UTC](https://discourse.nodered.org/t/how-to-enter-a-line-after-an-exec-node-is-started/12442 "2019-07-11T09:58:58Z")

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Hello I need to launch a command. so, i use an exec node. But in this command (it's gactions,and I need it to publish my Google Actions), when gactions is launched, it gives me an url. Then, i must paste this url in …

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## [Best practices to auto refresh dashboard](https://discourse.nodered.org/t/best-practices-to-auto-refresh-dashboard/13135)

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**Author:** [@injector22](https://discourse.nodered.org/u/injector22)\
**Replies:** 1\
**Last updated:** [11 July 2019 08:43 UTC](https://discourse.nodered.org/t/best-practices-to-auto-refresh-dashboard/13135 "2019-07-11T08:43:53Z")

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I've been searching but all I seem to find is answers to using the control ui node to refresh the dashboard when the page loads. If I already have the page loaded and I want to refresh the elements, is a blank inject no…

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## [Node red and mqtt on ibm cloud (bluemix)?](https://discourse.nodered.org/t/node-red-and-mqtt-on-ibm-cloud-bluemix/3023)

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**Author:** [@j0hncc](https://discourse.nodered.org/u/j0hncc)\
**Replies:** 22\
**Last updated:** [11 July 2019 06:20 UTC](https://discourse.nodered.org/t/node-red-and-mqtt-on-ibm-cloud-bluemix/3023 "2019-07-11T06:20:27Z")

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Is it possible to use node red and mqtt on a bluemix instance without using the ibm "Managed devices" framework/environment? I am trying to set up a flow like this to send arbitraty messages but can't get the mqtt nod…

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## [Node-red-contrib-oregon : decoder node fail](https://discourse.nodered.org/t/node-red-contrib-oregon-decoder-node-fail/13115)

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**Author:** [@benoitp](https://discourse.nodered.org/u/benoitp)\
**Replies:** 2\
**Last updated:** [11 July 2019 06:04 UTC](https://discourse.nodered.org/t/node-red-contrib-oregon-decoder-node-fail/13115 "2019-07-11T06:04:43Z")

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hello all, did anyone notice that node-red-contrib-oregon doesn't work on the latest node-red version (0.20.x) ? while it's works well on 0.19.6... need some help please !

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## [Do Node red http requests open new socket for each request to same ip and port](https://discourse.nodered.org/t/do-node-red-http-requests-open-new-socket-for-each-request-to-same-ip-and-port/13060)

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**Author:** [@kiran007](https://discourse.nodered.org/u/kiran007)\
**Replies:** 5\
**Last updated:** [11 July 2019 05:28 UTC](https://discourse.nodered.org/t/do-node-red-http-requests-open-new-socket-for-each-request-to-same-ip-and-port/13060 "2019-07-11T05:28:51Z")

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I used http request node to request to my device. I am requesting to same device every second. Does this request process open the new socket for each request or it uses existing socket (same IP and Port Number)?

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## [NodeRed docker install package for ARM based cpu's](https://discourse.nodered.org/t/nodered-docker-install-package-for-arm-based-cpus/13147)

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**Author:** [@crisflashin](https://discourse.nodered.org/u/crisflashin)\
**Replies:** 0\
**Last updated:** [11 July 2019 05:47 UTC](https://discourse.nodered.org/t/nodered-docker-install-package-for-arm-based-cpus/13147 "2019-07-11T05:47:46Z")

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Hi guys! hope you are doing good ! I'm trying to install node red in my docker container that has ARM 32bit based cpu, but didnt find that based version. Do someone has some advice for me? Thank you so much, really app…

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## [Reproduce form in template](https://discourse.nodered.org/t/reproduce-form-in-template/13140)

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**Author:** [@tiagovalenca](https://discourse.nodered.org/u/tiagovalenca)\
**Replies:** 0\
**Last updated:** [11 July 2019 01:34 UTC](https://discourse.nodered.org/t/reproduce-form-in-template/13140 "2019-07-11T01:34:16Z")

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I want to have a form where i can prefill some inputs based on the last answer submitted. I should also say I already set the last inputs as global variables. I want to use this global variables to prefill my form, I d…

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## [HX711 ADC Node or Arduino Serial In Help](https://discourse.nodered.org/t/hx711-adc-node-or-arduino-serial-in-help/283)

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**Author:** [@zacharyalan09](https://discourse.nodered.org/u/zacharyalan09)\
**Replies:** 11\
**Last updated:** [10 July 2019 22:56 UTC](https://discourse.nodered.org/t/hx711-adc-node-or-arduino-serial-in-help/283 "2019-07-10T22:56:21Z")

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Hello! I’m working to build a first raspberry pi project measuring weight using a strain gage and HX711 chip. There’s a number of resources available online, and I’m able to read in the values with a python script today…

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## [Convert datetime with moment](https://discourse.nodered.org/t/convert-datetime-with-moment/13130)

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**Author:** [@Vincent\_D](https://discourse.nodered.org/u/Vincent_D)\
**Replies:** 11\
**Last updated:** [10 July 2019 21:39 UTC](https://discourse.nodered.org/t/convert-datetime-with-moment/13130 "2019-07-10T21:39:35Z")

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Hi. I hope I can get some help from you guys. I'm having a little trouble getting the date and time the way I want. I have node red read temp and time from a mysql database, in the database the input of time is like th…

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## [Node-RED install on Raspbian Buster Lite](https://discourse.nodered.org/t/node-red-install-on-raspbian-buster-lite/13106)

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**Author:** [@johnwalicki](https://discourse.nodered.org/u/johnwalicki)\
**Replies:** 7\
**Last updated:** [10 July 2019 20:41 UTC](https://discourse.nodered.org/t/node-red-install-on-raspbian-buster-lite/13106 "2019-07-10T20:41:15Z")

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I just burned a Raspbian Buster Lite image and want to install Node-RED. The new Node-RED documentation suggests running this command: $ bash \<(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/ma…

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## [Floating point calculation speed](https://discourse.nodered.org/t/floating-point-calculation-speed/12669)

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**Author:** [@rburton](https://discourse.nodered.org/u/rburton)\
**Replies:** 23\
**Last updated:** [10 July 2019 20:22 UTC](https://discourse.nodered.org/t/floating-point-calculation-speed/12669 "2019-07-10T20:22:49Z")

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Hello all, I have a project in action and have functional code, it's solving inverse kinematics equations at the moment it's solving one, but I need it to solve 6 equations simultaneously every 2500 nano seconds, when w…

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## [Weather reporting station](https://discourse.nodered.org/t/weather-reporting-station/13128)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 1\
**Last updated:** [10 July 2019 20:05 UTC](https://discourse.nodered.org/t/weather-reporting-station/13128 "2019-07-10T20:05:11Z")

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I introduced how to use an OLED display panel to my IoT students a couple of weeks ago. After sending some text messages and values to the panel they asked if they could incorporate it with the 'OpenWeatherMap' facility…

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## [How to Dynamically change the "Value Format" of ui\_text?](https://discourse.nodered.org/t/how-to-dynamically-change-the-value-format-of-ui-text/13116)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 6\
**Last updated:** [10 July 2019 19:53 UTC](https://discourse.nodered.org/t/how-to-dynamically-change-the-value-format-of-ui-text/13116 "2019-07-10T19:53:27Z")

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I know I can statically add some HTML styles inside the Value Format entry and that works, But I am having difficulty figuring out how to change the "Value format" dynamically. Thanks...

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