# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1024

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

**Page:** 1025

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## [Node-red-contrib-controltimer](https://discourse.nodered.org/t/node-red-contrib-controltimer/31220)

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**Author:** [@Writech](https://discourse.nodered.org/u/Writech)\
**Replies:** 2\
**Last updated:** [7 August 2020 08:33 UTC](https://discourse.nodered.org/t/node-red-contrib-controltimer/31220 "2020-08-07T08:33:48Z")

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I have been using Node-RED for Homeassistant automations for some time now. I was previously using other timer nodes implementations for my automations (looptimer, stoptimer etc.) but didn't find any timer nodes that off…

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## [How to review trends in the chart of previous days](https://discourse.nodered.org/t/how-to-review-trends-in-the-chart-of-previous-days/31158)

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**Author:** [@carmar19](https://discourse.nodered.org/u/carmar19)\
**Replies:** 3\
**Last updated:** [7 August 2020 08:19 UTC](https://discourse.nodered.org/t/how-to-review-trends-in-the-chart-of-previous-days/31158 "2020-08-07T08:19:01Z")

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How can I check the trend of previous days in the chart to see how the history in the chart behaves? Could you help me with this topic and can or can you do searches on the chart with dates?

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## [Warning about Clone - Node Crash 'FATAL ERROR: v8::Object::SetInternalField() Internal field out of bounds'](https://discourse.nodered.org/t/warning-about-clone-node-crash-fatal-error-v8-setinternalfield-internal-field-out-of-bounds/16705)

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**Author:** [@btsimonh](https://discourse.nodered.org/u/btsimonh)\
**Replies:** 1\
**Last updated:** [7 August 2020 08:10 UTC](https://discourse.nodered.org/t/warning-about-clone-node-crash-fatal-error-v8-setinternalfield-internal-field-out-of-bounds/16705 "2020-08-07T08:10:32Z")

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Had some fun with Node 12.10.0 and Node-Red 1.0.1 today. Again, clone comes back to haunt me. Beware - if you have anything illicit in your messages (like a Pipe, or a Socket), you could end up with NodeJS crashing out…

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## [Catching "Timeout when connecting to server" error](https://discourse.nodered.org/t/catching-timeout-when-connecting-to-server-error/31223)

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**Author:** [@mikeh](https://discourse.nodered.org/u/mikeh)\
**Replies:** 11\
**Last updated:** [7 August 2020 06:23 UTC](https://discourse.nodered.org/t/catching-timeout-when-connecting-to-server-error/31223 "2020-08-07T06:23:55Z")

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How do I catch this error from FTP node? "Timeout when connecting to server" I'm using this node-red-contrib-advanced-ftp How will I know if it an error like this occurred or not and do a retry?

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## [SQLite3 question](https://discourse.nodered.org/t/sqlite3-question/31216)

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**Author:** [@dgazda](https://discourse.nodered.org/u/dgazda)\
**Replies:** 2\
**Last updated:** [7 August 2020 05:04 UTC](https://discourse.nodered.org/t/sqlite3-question/31216 "2020-08-07T05:04:35Z")

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Hello. I have a small question. Is it possible to send variable with database name or somehow to sqlite node?

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## [How can I access an external MQTT service through a corporate proxy?](https://discourse.nodered.org/t/how-can-i-access-an-external-mqtt-service-through-a-corporate-proxy/31194)

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**Author:** [@khairiGithub](https://discourse.nodered.org/u/khairiGithub)\
**Replies:** 3\
**Last updated:** [7 August 2020 01:11 UTC](https://discourse.nodered.org/t/how-can-i-access-an-external-mqtt-service-through-a-corporate-proxy/31194 "2020-08-07T01:11:50Z")

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## [Samsung TV node KEY\_CUSTOM](https://discourse.nodered.org/t/samsung-tv-node-key-custom/31151)

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**Author:** [@dnauk](https://discourse.nodered.org/u/dnauk)\
**Replies:** 3\
**Last updated:** [7 August 2020 00:45 UTC](https://discourse.nodered.org/t/samsung-tv-node-key-custom/31151 "2020-08-07T00:45:14Z")

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I have been using the excellent node-red-contrib-samsungTV. I note the presence of KEY\_CUSTOM in the list of commands. Can anyone explain whether this works to send a custom key and if so how. For example KEY\_ENTER and …

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## [My contrib node is gone from https://flows.nodered.org/](https://discourse.nodered.org/t/my-contrib-node-is-gone-from-https-flows-nodered-org/31251)

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**Author:** [@amodelbello](https://discourse.nodered.org/u/amodelbello)\
**Replies:** 2\
**Last updated:** [6 August 2020 22:58 UTC](https://discourse.nodered.org/t/my-contrib-node-is-gone-from-https-flows-nodered-org/31251 "2020-08-06T22:58:51Z")

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I'm the author of @meowwolf/node-red-contrib-amqp and after updating it this week it's just gone from flows.nodered.org site. https://flows.nodered.org/node/@meowwolf/node-red-contrib-amqp resolves to a 404. It also do…

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## [EROFS: read-only file system,](https://discourse.nodered.org/t/erofs-read-only-file-system/31234)

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**Author:** [@Zerg](https://discourse.nodered.org/u/Zerg)\
**Replies:** 10\
**Last updated:** [6 August 2020 19:20 UTC](https://discourse.nodered.org/t/erofs-read-only-file-system/31234 "2020-08-06T19:20:01Z")

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I am trying to create a file at the specified path, but I get an error. failed to create file: Error: EROFS: read-only file system, mkdir '/opt/zigbee2mqttD' link on screen: https://ibb.co/FWMfySy OS - Ubunta 20.04 F…

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## [How to transform a vue.js application to uibuilder](https://discourse.nodered.org/t/how-to-transform-a-vue-js-application-to-uibuilder/30881)

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**Author:** [@grbba](https://discourse.nodered.org/u/grbba)\
**Replies:** 21\
**Last updated:** [6 August 2020 19:17 UTC](https://discourse.nodered.org/t/how-to-transform-a-vue-js-application-to-uibuilder/30881 "2020-08-06T19:17:18Z")

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Hello, I am new to node-red and experimenting a lot right now. This is my first time on the forum as the issue i face at this point in time is how actually to make an existing vue.js app run with uibuilder. What i trie…

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## [Can't remove node-red-contrib-postgres-multi](https://discourse.nodered.org/t/cant-remove-node-red-contrib-postgres-multi/31241)

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**Author:** [@jomacdon](https://discourse.nodered.org/u/jomacdon)\
**Replies:** 2\
**Last updated:** [6 August 2020 18:38 UTC](https://discourse.nodered.org/t/cant-remove-node-red-contrib-postgres-multi/31241 "2020-08-06T18:38:15Z")

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I just added the 'node-red-contrib-postgres-multi' palet but now I can't remove it / replace it even though I removed it from my flow. Any ideas guys?

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## [Node-red crashes consistently (MySQL)](https://discourse.nodered.org/t/node-red-crashes-consistently-mysql/31104)

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**Author:** [@reynardlee](https://discourse.nodered.org/u/reynardlee)\
**Replies:** 15\
**Last updated:** [6 August 2020 15:55 UTC](https://discourse.nodered.org/t/node-red-crashes-consistently-mysql/31104 "2020-08-06T15:55:46Z")

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I was working just fine, yesterday and now there is a problem. It starts normally, but when I select a Date Picker along with two Dropdowns, it seems to stop working. It seems like there's a problem in the MySQL node (it…

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## [Drop down list box showing junk at the end of the default value](https://discourse.nodered.org/t/drop-down-list-box-showing-junk-at-the-end-of-the-default-value/31198)

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**Author:** [@davej](https://discourse.nodered.org/u/davej)\
**Replies:** 4\
**Last updated:** [6 August 2020 15:32 UTC](https://discourse.nodered.org/t/drop-down-list-box-showing-junk-at-the-end-of-the-default-value/31198 "2020-08-06T15:32:34Z")

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I am attempting to show a default value in a Drop down list box. The drop down looks like this: Quite simple. Click the Scan button and then I get this: This is the default value passed in msg.payload. Notice the…

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## [Modbus Array Readings and Conversion](https://discourse.nodered.org/t/modbus-array-readings-and-conversion/31228)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 4\
**Last updated:** [6 August 2020 15:27 UTC](https://discourse.nodered.org/t/modbus-array-readings-and-conversion/31228 "2020-08-06T15:27:26Z")

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Hello, So modbus serial reader node reads in the data as one big array line, it reads it in as a in 16 type. My issue is that the registers on my device are both int 16 and IEEE754 float. I can\`t find a way exactly to r…

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## [Reading multiple lines on text file](https://discourse.nodered.org/t/reading-multiple-lines-on-text-file/31229)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 1\
**Last updated:** [6 August 2020 15:07 UTC](https://discourse.nodered.org/t/reading-multiple-lines-on-text-file/31229 "2020-08-06T15:07:17Z")

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Hello, I have a text file full of arrays, I want each array to be read seperately one by one in the text file. Only issue is that I can\`t get the text file reader to read them all , only the first one. Any suggestion…

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## [Error: Input not a JSON Array](https://discourse.nodered.org/t/error-input-not-a-json-array/30980)

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**Author:** [@sivagangadharn1](https://discourse.nodered.org/u/sivagangadharn1)\
**Replies:** 4\
**Last updated:** [6 August 2020 14:48 UTC](https://discourse.nodered.org/t/error-input-not-a-json-array/30980 "2020-08-06T14:48:22Z")

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{ "name": "starter-conversation-OK-Watson", "created": "2016-09-28T09:00:28.916Z", "intents": \[ { "intent": "admin", "created": "2016-09-29T12:20:31.350Z", "examples": \[ …

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## [How to generate alert messages](https://discourse.nodered.org/t/how-to-generate-alert-messages/31219)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 1\
**Last updated:** [6 August 2020 12:43 UTC](https://discourse.nodered.org/t/how-to-generate-alert-messages/31219 "2020-08-06T12:43:36Z")

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Hello Everyone, I want to generate some alert like(High Temperature Alert). But I want to generate alert only once if data is coming continuously more then threshold. And if data is coming only one time more then thre…

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## [Raspberry on the road](https://discourse.nodered.org/t/raspberry-on-the-road/31096)

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**Author:** [@Laurent](https://discourse.nodered.org/u/Laurent)\
**Replies:** 14\
**Last updated:** [6 August 2020 12:31 UTC](https://discourse.nodered.org/t/raspberry-on-the-road/31096 "2020-08-06T12:31:50Z")

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I am trying to simplify the connection of my raspberry to the different wifi networks that I meet in my travels. I created an ui page in which I can launch my functions (radio, tv and sites consultation). I also created…

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## [Delete multiple flows/tabs at once](https://discourse.nodered.org/t/delete-multiple-flows-tabs-at-once/31217)

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**Author:** [@gauravdasgupta](https://discourse.nodered.org/u/gauravdasgupta)\
**Replies:** 2\
**Last updated:** [6 August 2020 12:08 UTC](https://discourse.nodered.org/t/delete-multiple-flows-tabs-at-once/31217 "2020-08-06T12:08:05Z")

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Hi all, say, n = 10 I am trying to select n flows/tabs and trying to delete them at once. Is there a way to do it ? I can always go back to the flows.json and do my job and restart NR, but that also is too much work! …

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## [Npm redis issue](https://discourse.nodered.org/t/npm-redis-issue/31209)

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**Author:** [@Iliyas](https://discourse.nodered.org/u/Iliyas)\
**Replies:** 13\
**Last updated:** [6 August 2020 11:26 UTC](https://discourse.nodered.org/t/npm-redis-issue/31209 "2020-08-06T11:26:50Z")

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Hello all, I am working on redis, I want to store the data into redis but I am getting error while connecting with redis. var redis = global.get('redis'); var client = redis.createClient(6379,'ipaddress'); //creates a …

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## [\[Announce\] node-red-contrib-artless-gauge slight update](https://discourse.nodered.org/t/announce-node-red-contrib-artless-gauge-slight-update/30864)

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**Author:** [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Replies:** 5\
**Last updated:** [6 August 2020 11:22 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-artless-gauge-slight-update/30864 "2020-08-06T11:22:00Z")

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With version 0.1.46 the radial layout gives more options for line thickness but only if the layout size is at least 4x4 units. No change for linear layout as there is no space for that. Feature request to improve readab…

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## [Raspberry NPM Node Red install error](https://discourse.nodered.org/t/raspberry-npm-node-red-install-error/31214)

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**Author:** [@pedda](https://discourse.nodered.org/u/pedda)\
**Replies:** 3\
**Last updated:** [6 August 2020 10:42 UTC](https://discourse.nodered.org/t/raspberry-npm-node-red-install-error/31214 "2020-08-06T10:42:14Z")

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running the install script for raspbery (bash curl ...) on raspberry 3b raspbian buster with node version 12.8.3 and npm Version 6.14.6 finishes with no errors (all green), but i do get error starting node-red-start indi…

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## [Telnet Using Port 22](https://discourse.nodered.org/t/telnet-using-port-22/31107)

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**Author:** [@gregoinc](https://discourse.nodered.org/u/gregoinc)\
**Replies:** 14\
**Last updated:** [6 August 2020 10:38 UTC](https://discourse.nodered.org/t/telnet-using-port-22/31107 "2020-08-06T10:38:46Z")

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I have a server with an IPMI interface that can be accessed via Telnet using port 22. I am trying to create a flow that will connect to the IP address using port 22, login using a username and password, then type some co…

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## [Node-red-node-group - cannot remove](https://discourse.nodered.org/t/node-red-node-group-cannot-remove/31205)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 3\
**Last updated:** [6 August 2020 10:35 UTC](https://discourse.nodered.org/t/node-red-node-group-cannot-remove/31205 "2020-08-06T10:35:30Z")

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In manage palette I see Trying to remove it fails, because it is in use. How do i get rid of it ?

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## [Adding multiple MQTT data to one function node](https://discourse.nodered.org/t/adding-multiple-mqtt-data-to-one-function-node/31190)

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**Author:** [@SinZapatillas](https://discourse.nodered.org/u/SinZapatillas)\
**Replies:** 6\
**Last updated:** [6 August 2020 10:16 UTC](https://discourse.nodered.org/t/adding-multiple-mqtt-data-to-one-function-node/31190 "2020-08-06T10:16:06Z")

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Hi! I am new to the Forum. I am creating an IoT app which register certain data into a database from an smart rollator. I have 4 sensors in 4 different topics. I want all of the data to be inserted simultaneously in the…

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## [Manipulating Data form Global Object](https://discourse.nodered.org/t/manipulating-data-form-global-object/31206)

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**Author:** [@thomas](https://discourse.nodered.org/u/thomas)\
**Replies:** 10\
**Last updated:** [6 August 2020 09:49 UTC](https://discourse.nodered.org/t/manipulating-data-form-global-object/31206 "2020-08-06T09:49:27Z")

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Hello everyone, I have got a strange issue. I would like to take data (array) from a global variable object. Replace the null values with another value and send the result to another node by msg.payload. Sounds easy. …

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## [Wierd display in debug pane (no styles ?)](https://discourse.nodered.org/t/wierd-display-in-debug-pane-no-styles/29819)

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**Author:** [@T0T4R4](https://discourse.nodered.org/u/T0T4R4)\
**Replies:** 3\
**Last updated:** [6 August 2020 09:36 UTC](https://discourse.nodered.org/t/wierd-display-in-debug-pane-no-styles/29819 "2020-08-06T09:36:48Z")

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Hi, We're running 1.0.1 and somewhat the debug pane looks like missing some styling. There are not Javascript errors nor Network errors in the developer tools (F12)... Any idea what could cause this ?

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## [RasPi display help requested](https://discourse.nodered.org/t/raspi-display-help-requested/31106)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 13\
**Last updated:** [6 August 2020 09:24 UTC](https://discourse.nodered.org/t/raspi-display-help-requested/31106 "2020-08-06T09:24:48Z")

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(Ok, I have asked someone else for a bit of help on it, but I think I should check other options as well.) I have been given a RasPi with a 3.2 inch (320 x 240 res) display. (High resolution! :crazy\_face:) It is diff…

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## [Write and read from global context every time a sensor reading is received](https://discourse.nodered.org/t/write-and-read-from-global-context-every-time-a-sensor-reading-is-received/31195)

<div class="topic-metadata">

**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 5\
**Last updated:** [6 August 2020 08:02 UTC](https://discourse.nodered.org/t/write-and-read-from-global-context-every-time-a-sensor-reading-is-received/31195 "2020-08-06T08:02:19Z")

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Is this considered bad practice, or could it be a bad idea to do this? Every time I receive a sensor reading from one of many Arduinos around the home, I write the sensor data to a global context object, then read all o…

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## [CANbus payload filtering](https://discourse.nodered.org/t/canbus-payload-filtering/31191)

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**Author:** [@Robsky](https://discourse.nodered.org/u/Robsky)\
**Replies:** 10\
**Last updated:** [6 August 2020 07:00 UTC](https://discourse.nodered.org/t/canbus-payload-filtering/31191 "2020-08-06T07:00:05Z")

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Hi, how can I filter CANbus messages based on message ID and byte im interested in to be displayed (1 of 8). thats what I'm getting as sample message. it has its ID and 8 bytes of data.

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