# Latest

**URL:** https://discourse.nodered.org/latest.md?page=905

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

**Page:** 906

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## [Detach block from other](https://discourse.nodered.org/t/detach-block-from-other/39392)

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**Author:** [@mariulin](https://discourse.nodered.org/u/mariulin)\
**Replies:** 9\
**Last updated:** [21 January 2021 18:39 UTC](https://discourse.nodered.org/t/detach-block-from-other/39392 "2021-01-21T18:39:40Z")

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Hi. I have this question. My "utility page" is formed in this way. Is possible to have the Copyright block detached from other block like in this image? I've tryed to work on spacer, but the result is not ok. Tha…

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## [Node-RED "flows" page Search needs help](https://discourse.nodered.org/t/node-red-flows-page-search-needs-help/39507)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 0\
**Last updated:** [21 January 2021 18:23 UTC](https://discourse.nodered.org/t/node-red-flows-page-search-needs-help/39507 "2021-01-21T18:23:21Z")

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Sirs, I am trying due diligence to find things on my own. "flows" Tab on the main page, I was searching "MQTT broker" which actually pulls up nothing as a result. I found by sheer luck searching "MQTT" I found " node-…

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## [A lesson about using the \`traffic\` node for anyone using it](https://discourse.nodered.org/t/a-lesson-about-using-the-traffic-node-for-anyone-using-it/7784)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [21 January 2021 16:52 UTC](https://discourse.nodered.org/t/a-lesson-about-using-the-traffic-node-for-anyone-using-it/7784 "2021-01-21T16:52:50Z")

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(This is posted with all honesty to be as helpful to people learning about writing flows. I have shot myself in the foot so many times with stupid mistakes REPEATEDLY! After a lot of wasted time because I didn't real…

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## [Bluetooth devices scanner](https://discourse.nodered.org/t/bluetooth-devices-scanner/39496)

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**Author:** [@Jotarod](https://discourse.nodered.org/u/Jotarod)\
**Replies:** 3\
**Last updated:** [21 January 2021 15:53 UTC](https://discourse.nodered.org/t/bluetooth-devices-scanner/39496 "2021-01-21T15:53:11Z")

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Dear all, I am trying to do an application that be able of scanner each "x" second the devices around (vía Bluetooth), and then Get in a list all the devices finded. I am using a raspberry pi 4 with Ubuntu 20.04 and I…

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## [Invalid field format](https://discourse.nodered.org/t/invalid-field-format/39494)

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**Author:** [@chris35](https://discourse.nodered.org/u/chris35)\
**Replies:** 3\
**Last updated:** [21 January 2021 15:44 UTC](https://discourse.nodered.org/t/invalid-field-format/39494 "2021-01-21T15:44:33Z")

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hello I've an error message for my "influxdb out node" however my previous debug node indicates that I enter a number for it, what happens? thanks a lot.

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## [Push button 0/1 GPIO](https://discourse.nodered.org/t/push-button-0-1-gpio/20787)

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**Author:** [@salguero98](https://discourse.nodered.org/u/salguero98)\
**Replies:** 8\
**Last updated:** [21 January 2021 14:52 UTC](https://discourse.nodered.org/t/push-button-0-1-gpio/20787 "2021-01-21T14:52:52Z")

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Hello, can anyone help me? I need a function that allows me to change the state. what I want is to press the button and have the output to 1 and press again and output = 0 thanks

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## [Custom Nodes UI styling](https://discourse.nodered.org/t/custom-nodes-ui-styling/39502)

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**Author:** [@jpinto](https://discourse.nodered.org/u/jpinto)\
**Replies:** 1\
**Last updated:** [21 January 2021 14:44 UTC](https://discourse.nodered.org/t/custom-nodes-ui-styling/39502 "2021-01-21T14:44:15Z")

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Hey all, I developed some nodes, and when user drag and drop in the workspace I want to make some changes to the DOM(Svg) of the dragged node. There is any kind of event that i can register to make such a feature? Chee…

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## [Node red to S7 1214C communication error](https://discourse.nodered.org/t/node-red-to-s7-1214c-communication-error/39452)

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**Author:** [@jjw](https://discourse.nodered.org/u/jjw)\
**Replies:** 2\
**Last updated:** [21 January 2021 14:29 UTC](https://discourse.nodered.org/t/node-red-to-s7-1214c-communication-error/39452 "2021-01-21T14:29:55Z")

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Im trying to connect to a siemens plc for the first time. Getting this error in Debug. "Error: PLC error \[0x8104\]: This service is not implemented on the module or a frame error was reported. Already have optimized da…

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## [One button with 2 MQTT topics](https://discourse.nodered.org/t/one-button-with-2-mqtt-topics/39440)

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**Author:** [@khoihosi](https://discourse.nodered.org/u/khoihosi)\
**Replies:** 16\
**Last updated:** [21 January 2021 12:41 UTC](https://discourse.nodered.org/t/one-button-with-2-mqtt-topics/39440 "2021-01-21T12:41:18Z")

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Hi All, Im new with Node RED and i'm trying to create a dashboard to control my home. So far i have been able to do most with the information found on this forum. But i cant figure out how to create one button that send…

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## [Dynamic Addition of Devices on Web-App MQTT](https://discourse.nodered.org/t/dynamic-addition-of-devices-on-web-app-mqtt/39344)

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**Author:** [@quentinP](https://discourse.nodered.org/u/quentinP)\
**Replies:** 1\
**Last updated:** [21 January 2021 11:56 UTC](https://discourse.nodered.org/t/dynamic-addition-of-devices-on-web-app-mqtt/39344 "2021-01-21T11:56:38Z")

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I have a bunch of devices that can connect to my Mosquitto Broker hosted on an Azure Virtual Machine. I have Node-RED running on a Azure Web-App. Using the UI Builder node I am buidling a user friendly website that allow…

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## [Add topic to each array values, output JSON for MQTT?](https://discourse.nodered.org/t/add-topic-to-each-array-values-output-json-for-mqtt/39478)

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**Author:** [@SaiQmon](https://discourse.nodered.org/u/SaiQmon)\
**Replies:** 3\
**Last updated:** [21 January 2021 11:27 UTC](https://discourse.nodered.org/t/add-topic-to-each-array-values-output-json-for-mqtt/39478 "2021-01-21T11:27:33Z")

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Hi, I read 92 x values from heating controller via modbus TCP. Response payload is just array of values I have a list, what each value means. e.g. 3rd value name is "403". I don't use any database in Node Red, so the…

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## [How to read a table with sensor data](https://discourse.nodered.org/t/how-to-read-a-table-with-sensor-data/39427)

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**Author:** [@BenSch](https://discourse.nodered.org/u/BenSch)\
**Replies:** 3\
**Last updated:** [21 January 2021 11:04 UTC](https://discourse.nodered.org/t/how-to-read-a-table-with-sensor-data/39427 "2021-01-21T11:04:17Z")

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Hey there, i want to read and display measuring data with dashboard nodes. How is it possible to read a table with already measured values (.csv or .txt) and use the gauge and chart function to simulate that the sensor…

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## [iOS Push Notification with Image](https://discourse.nodered.org/t/ios-push-notification-with-image/39047)

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**Author:** [@nuki47](https://discourse.nodered.org/u/nuki47)\
**Replies:** 1\
**Last updated:** [21 January 2021 10:53 UTC](https://discourse.nodered.org/t/ios-push-notification-with-image/39047 "2021-01-21T10:53:14Z")

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Is there a way to send an iOS Push Notification with an Image (jpeg)? System: RaspberryPi

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## [Temperature Monitoring Hardware](https://discourse.nodered.org/t/temperature-monitoring-hardware/38528)

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**Author:** [@antsals](https://discourse.nodered.org/u/antsals)\
**Replies:** 74\
**Last updated:** [21 January 2021 10:05 UTC](https://discourse.nodered.org/t/temperature-monitoring-hardware/38528 "2021-01-21T10:05:45Z")

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I currently us Siemens Logo to measure some temperatures at pipework; I now want addtional points where I measure temperature that are remote from the Logo. I know I can do it with the Logo; but if there some cheapish d…

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## [Why i'm getting NAN in debug of temp value](https://discourse.nodered.org/t/why-im-getting-nan-in-debug-of-temp-value/39477)

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**Author:** [@arvind423](https://discourse.nodered.org/u/arvind423)\
**Replies:** 2\
**Last updated:** [21 January 2021 10:10 UTC](https://discourse.nodered.org/t/why-im-getting-nan-in-debug-of-temp-value/39477 "2021-01-21T10:10:22Z")

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var temp1= msg.payload\[6\]-48; var temp2= msg.payload\[7\]-48; var temp3= msg.payload\[9\]-48; var temp4= msg.payload\[10\]-48; var result = (temp1\*1000)+ (temp2\*100) + (temp3\*10) + temp4; result = result/100; var result1 = …

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## [How would you approach this design?](https://discourse.nodered.org/t/how-would-you-approach-this-design/39475)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 4\
**Last updated:** [21 January 2021 07:36 UTC](https://discourse.nodered.org/t/how-would-you-approach-this-design/39475 "2021-01-21T07:36:48Z")

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Hey Guys, As part of our home automation and energy consumption we are trying to make everything a little smarter and use more of our "free" solar energy. We currently have 15KW of panels on our house and during Summer…

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## [Trigger node startup question](https://discourse.nodered.org/t/trigger-node-startup-question/39453)

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**Author:** [@Kazzy](https://discourse.nodered.org/u/Kazzy)\
**Replies:** 3\
**Last updated:** [21 January 2021 07:16 UTC](https://discourse.nodered.org/t/trigger-node-startup-question/39453 "2021-01-21T07:16:36Z")

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Hi, Just wondered if there maybe a better way to do this. I have two trigger per diagram flow below, one to set of at 7am everyday and one at Midnight. these basically set some defaults for brightness etc. so got t…

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## [Grab image - resize - iframe](https://discourse.nodered.org/t/grab-image-resize-iframe/39378)

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**Author:** [@leftymuller](https://discourse.nodered.org/u/leftymuller)\
**Replies:** 5\
**Last updated:** [21 January 2021 05:06 UTC](https://discourse.nodered.org/t/grab-image-resize-iframe/39378 "2021-01-21T05:06:31Z")

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Hi All, Ive been trying to grab a weather radar image from a website which is then put it in an iframe.. I can get this to happen but its too big and i get this I tried using the image tool palette but I keep gett…

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## [Schedule Motion Events using INPUT Datetime helpers in Home Assistant](https://discourse.nodered.org/t/schedule-motion-events-using-input-datetime-helpers-in-home-assistant/39474)

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**Author:** [@nld77](https://discourse.nodered.org/u/nld77)\
**Replies:** 0\
**Last updated:** [21 January 2021 03:02 UTC](https://discourse.nodered.org/t/schedule-motion-events-using-input-datetime-helpers-in-home-assistant/39474 "2021-01-21T03:02:08Z")

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I am new to Node Red, and I am using it to automate my existing Home Assistant automations. I am looking to achieve a fairly simple automation for you guys out there.. I have created a sequence where a Binary Motion Se…

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## [Auto light with unlock](https://discourse.nodered.org/t/auto-light-with-unlock/39471)

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**Author:** [@killahbee](https://discourse.nodered.org/u/killahbee)\
**Replies:** 0\
**Last updated:** [21 January 2021 01:17 UTC](https://discourse.nodered.org/t/auto-light-with-unlock/39471 "2021-01-21T01:17:38Z")

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Hi All, I am trying to automate a light coming on when there is motion at the front door followed by the door unlocking. This is my current flow, the problem is that if I unlock the door then leave it still goes off so…

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## [Influx retention policy and remote storage location](https://discourse.nodered.org/t/influx-retention-policy-and-remote-storage-location/39238)

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**Author:** [@bkenobi](https://discourse.nodered.org/u/bkenobi)\
**Replies:** 6\
**Last updated:** [21 January 2021 00:59 UTC](https://discourse.nodered.org/t/influx-retention-policy-and-remote-storage-location/39238 "2021-01-21T00:59:40Z")

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I am working on a flow that takes data from MQTT (mostly rtl\_433 sensors) and converts the inputs to meaningful data that then is output to an Influx database. The tutorials I've read have gotten me started and after a …

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## [\[Announce\] Dashboard version 2.27.0](https://discourse.nodered.org/t/announce-dashboard-version-2-27-0/39373)

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**Author:** [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Replies:** 11\
**Last updated:** [20 January 2021 23:30 UTC](https://discourse.nodered.org/t/announce-dashboard-version-2-27-0/39373 "2021-01-20T23:30:55Z")

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Hi, a couple of enhancements and fixes. One to allow a chain of multiple middleware, and one to allow polar are chart to choose nicer colours. And an apology / fix for the button text colour that I broker last time rou…

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## [Web Socket Help](https://discourse.nodered.org/t/web-socket-help/37927)

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**Author:** [@antsals](https://discourse.nodered.org/u/antsals)\
**Replies:** 25\
**Last updated:** [20 January 2021 22:44 UTC](https://discourse.nodered.org/t/web-socket-help/37927 "2021-01-20T22:44:29Z")

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I'm a total novice to coding and just can't get my head around the web socket. I'm sure this is super simple..... I have connect PLC to node red successfully and have data logging to a mysql database. The next thing I…

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## [Managing schedule of mutually exclusive scenes](https://discourse.nodered.org/t/managing-schedule-of-mutually-exclusive-scenes/39024)

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**Author:** [@robcos](https://discourse.nodered.org/u/robcos)\
**Replies:** 8\
**Last updated:** [20 January 2021 22:42 UTC](https://discourse.nodered.org/t/managing-schedule-of-mutually-exclusive-scenes/39024 "2021-01-20T22:42:05Z")

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Say that I have 2 scenes, morning and evening and I want different nodes to trigger every x minutes. For the sake of the example, the Night node triggers every 5 minutes during the morning and the Evening node triggers e…

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## [Error: EBUSY: resource busy or locked, rename](https://discourse.nodered.org/t/error-ebusy-resource-busy-or-locked-rename/39467)

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**Author:** [@minhhn0205](https://discourse.nodered.org/u/minhhn0205)\
**Replies:** 1\
**Last updated:** [20 January 2021 21:51 UTC](https://discourse.nodered.org/t/error-ebusy-resource-busy-or-locked-rename/39467 "2021-01-20T21:51:47Z")

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Hi, I have a node red application Node-RED version: v1.1.3 Node.js version: v12.18.3 move (fs-ops-move node) the file from folder\_A to folder\_B after 1 minute by setting the repetition in the inject node: I pu…

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## [Read CSV file and Replace the name of a variable](https://discourse.nodered.org/t/read-csv-file-and-replace-the-name-of-a-variable/39465)

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**Author:** [@Roger](https://discourse.nodered.org/u/Roger)\
**Replies:** 2\
**Last updated:** [20 January 2021 21:36 UTC](https://discourse.nodered.org/t/read-csv-file-and-replace-the-name-of-a-variable/39465 "2021-01-20T21:36:34Z")

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Hi all, I have thounsands of sensors which has his deveui (identificator) with numbers like 54-23-12-54.... In a csv file I have in the first colum this deveui and in the second the name that I want to put at my sensor.…

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## [Node\_module\_version](https://discourse.nodered.org/t/node-module-version/39460)

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**Author:** [@TinkyLv](https://discourse.nodered.org/u/TinkyLv)\
**Replies:** 1\
**Last updated:** [20 January 2021 20:38 UTC](https://discourse.nodered.org/t/node-module-version/39460 "2021-01-20T20:38:16Z")

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Hey. I am trying to run Node-Red on my raspberry pi 4 but I am getting error: Flows stopped due to missing node types. serial-port In the Node-Red terminal I have the following issue which I cannot solve and could us…

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## [Get flow name in function-node](https://discourse.nodered.org/t/get-flow-name-in-function-node/39429)

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**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 2\
**Last updated:** [20 January 2021 20:28 UTC](https://discourse.nodered.org/t/get-flow-name-in-function-node/39429 "2021-01-20T20:28:47Z")

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Hi, I want to get the name of the flow (e.g. "Flow3") that a function node is working in. (in this case: lets assume functionnode is part of Flow3) Is there any possibility to get that name?

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## [How to have the browser play a clicking noise when a button is pressed?](https://discourse.nodered.org/t/how-to-have-the-browser-play-a-clicking-noise-when-a-button-is-pressed/39362)

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**Author:** [@kpc](https://discourse.nodered.org/u/kpc)\
**Replies:** 6\
**Last updated:** [20 January 2021 20:14 UTC](https://discourse.nodered.org/t/how-to-have-the-browser-play-a-clicking-noise-when-a-button-is-pressed/39362 "2021-01-20T20:14:56Z")

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I have my dashboard tablet mounted on a wall, and found that it's pretty easy to "mis-click" by accidentally dragging my finger when I'm trying to hit a button; in this case the button press is silently dropped. I'd lik…

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## [Python3 output buffer content to msg.payload](https://discourse.nodered.org/t/python3-output-buffer-content-to-msg-payload/39463)

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**Author:** [@votecoffee](https://discourse.nodered.org/u/votecoffee)\
**Replies:** 0\
**Last updated:** [20 January 2021 20:11 UTC](https://discourse.nodered.org/t/python3-output-buffer-content-to-msg-payload/39463 "2021-01-20T20:11:39Z")

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I've got a raspberry pi 4 and a pimoroni automation hat which has an I2C device ads1015. I'm trying to format a command to the device using the python3 node. I'm trying to pass buffer data back to the ms.payload, but b…

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