# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1330

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

**Page:** 1331

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## [Modbus in Node-red](https://discourse.nodered.org/t/modbus-in-node-red/6419)

<div class="topic-metadata">

**Author:** [@noobPLC](https://discourse.nodered.org/u/noobPLC)\
**Replies:** 2\
**Last updated:** [7 January 2019 05:34 UTC](https://discourse.nodered.org/t/modbus-in-node-red/6419 "2019-01-07T05:34:01Z")

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Can we install node-red in PC1( IP : 10.10.10.X) and connect to an openPLC which is installed on raspberry PI with IP 10.10.10.Y and send messages using MODBUS TCP/IP protocol ?

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## [Can install Node-red to Amazon LightSail](https://discourse.nodered.org/t/can-install-node-red-to-amazon-lightsail/6481)

<div class="topic-metadata">

**Author:** [@junoprima](https://discourse.nodered.org/u/junoprima)\
**Replies:** 0\
**Last updated:** [7 January 2019 02:42 UTC](https://discourse.nodered.org/t/can-install-node-red-to-amazon-lightsail/6481 "2019-01-07T02:42:51Z")

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Hello i follow this tutorial https://nodered.org/docs/platforms/aws I see this can use for aws e2 i need to know can possible to install to aws lightsail Update: I can install node.js and node-red now but can't use i…

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## [Question about MQTT config nodes](https://discourse.nodered.org/t/question-about-mqtt-config-nodes/6439)

<div class="topic-metadata">

**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 2\
**Last updated:** [6 January 2019 23:08 UTC](https://discourse.nodered.org/t/question-about-mqtt-config-nodes/6439 "2019-01-06T23:08:12Z")

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I recently noticed that I have multiple nodes for the same MQTT server. (#2 in the image below). Is this a problem? And, I don't use the MQTT broker on this Pi (127.0.0.1), so is there an easy method to find the nodes…

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## [Play Audio node question](https://discourse.nodered.org/t/play-audio-node-question/6438)

<div class="topic-metadata">

**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 2\
**Last updated:** [6 January 2019 22:43 UTC](https://discourse.nodered.org/t/play-audio-node-question/6438 "2019-01-06T22:43:35Z")

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I am having some problems with the Play\_Audio node. On one Node-Red Pi (Raspian), I inject once with the inject node into a File-In node to read a .wav file and the output of that node is "a single Buffer Object", which…

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## [Modbus RS485 data length error](https://discourse.nodered.org/t/modbus-rs485-data-length-error/6432)

<div class="topic-metadata">

**Author:** [@stijn](https://discourse.nodered.org/u/stijn)\
**Replies:** 3\
**Last updated:** [6 January 2019 21:05 UTC](https://discourse.nodered.org/t/modbus-rs485-data-length-error/6432 "2019-01-06T21:05:45Z")

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Hi all, Got a problem with reading out some modbus values through RS485 from a Energy meter (RI-f200) I'm using a USB to RS485 convertor connected to a raspberry. https://techsparx.com/energy-system/modbus/linux-mo…

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## [Finding settings.js](https://discourse.nodered.org/t/finding-settings-js/6450)

<div class="topic-metadata">

**Author:** [@SolarPilz](https://discourse.nodered.org/u/SolarPilz)\
**Replies:** 8\
**Last updated:** [6 January 2019 18:15 UTC](https://discourse.nodered.org/t/finding-settings-js/6450 "2019-01-06T18:15:33Z")

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Hi all I am having a big problem finding the settings.js file in my NR install. I am running it on Rasbian Stretch, and I have tried to update it with the script in the documentation: bash \<(curl -sL https://raw.github…

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## [Audio out TTS languages](https://discourse.nodered.org/t/audio-out-tts-languages/6345)

<div class="topic-metadata">

**Author:** [@owarek](https://discourse.nodered.org/u/owarek)\
**Replies:** 1\
**Last updated:** [6 January 2019 17:30 UTC](https://discourse.nodered.org/t/audio-out-tts-languages/6345 "2019-01-06T17:30:37Z")

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Hello, would it be possible to add Czech TTS language option to the Audio out node? Thank you in advance and have a great day!

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## [Deprecation warnings when installing](https://discourse.nodered.org/t/deprecation-warnings-when-installing/6444)

<div class="topic-metadata">

**Author:** [@djh](https://discourse.nodered.org/u/djh)\
**Replies:** 2\
**Last updated:** [6 January 2019 11:49 UTC](https://discourse.nodered.org/t/deprecation-warnings-when-installing/6444 "2019-01-06T11:49:38Z")

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I decided to play with node-red. I have no experience with it or with node.js or with docker. I gathered that the best way to install it is to install the other components from the distro repositories, including npm, and…

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## [Status node - suggestion](https://discourse.nodered.org/t/status-node-suggestion/6436)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [6 January 2019 08:10 UTC](https://discourse.nodered.org/t/status-node-suggestion/6436 "2019-01-06T08:10:44Z")

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I have only recently discovered the status node. Handy little fella to signal the status of things. But one thing I feel is missing: (This node is like the link node/s. It only works on this flow/page.) Though this…

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## [How to find the root cause of a Node error/warning when node-red is starting](https://discourse.nodered.org/t/how-to-find-the-root-cause-of-a-node-error-warning-when-node-red-is-starting/6395)

<div class="topic-metadata">

**Author:** [@germancmartinez](https://discourse.nodered.org/u/germancmartinez)\
**Replies:** 5\
**Last updated:** [6 January 2019 04:14 UTC](https://discourse.nodered.org/t/how-to-find-the-root-cause-of-a-node-error-warning-when-node-red-is-starting/6395 "2019-01-06T04:14:12Z")

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Hi, I´m trying to create my own MongoDB connector using the MongoDB node.js driver. To do that I'm creating a node with its corresponding configuration node. I don't get any error when installing my library using npm in…

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## [\[NEW FEATURE\] node-red-contrib-queue-gate (version 1.1.0)](https://discourse.nodered.org/t/new-feature-node-red-contrib-queue-gate-version-1-1-0/6402)

<div class="topic-metadata">

**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 1\
**Last updated:** [6 January 2019 03:41 UTC](https://discourse.nodered.org/t/new-feature-node-red-contrib-queue-gate-version-1-1-0/6402 "2019-01-06T03:41:38Z")

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In previous versions of this node, if the user set a limit on the queue size and that limit was reached, all incoming messages would be discarded until space became available. As a result, the queue would contain the old…

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## [Tradfri in Node RED on Windows (coap library)](https://discourse.nodered.org/t/tradfri-in-node-red-on-windows-coap-library/6416)

<div class="topic-metadata">

**Author:** [@Michael](https://discourse.nodered.org/u/Michael)\
**Replies:** 9\
**Last updated:** [6 January 2019 01:42 UTC](https://discourse.nodered.org/t/tradfri-in-node-red-on-windows-coap-library/6416 "2019-01-06T01:42:27Z")

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Hi i´m trying out if tradfri in connection with node red is a good option for my home. I´ve got the tradfri gateway and some bulbs. For testing purposes I installed node red on my local windows PC. Unfortunately i don…

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## [H801 rgbww node](https://discourse.nodered.org/t/h801-rgbww-node/6423)

<div class="topic-metadata">

**Author:** [@nick](https://discourse.nodered.org/u/nick)\
**Replies:** 0\
**Last updated:** [5 January 2019 15:15 UTC](https://discourse.nodered.org/t/h801-rgbww-node/6423 "2019-01-05T15:15:16Z")

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can somebody tell me what i am doing wrong withe the h801 node? the value of the rgbww are not comming trough to the node. \[{"id":"87139c06.d08d5","type":"ui\_colour\_picker","z":"945180fe.d41cc","name":"","label":"","gr…

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## [Azure IoT Hub data formatting](https://discourse.nodered.org/t/azure-iot-hub-data-formatting/5718)

<div class="topic-metadata">

**Author:** [@KMBN](https://discourse.nodered.org/u/KMBN)\
**Replies:** 1\
**Last updated:** [5 January 2019 11:24 UTC](https://discourse.nodered.org/t/azure-iot-hub-data-formatting/5718 "2019-01-05T11:24:48Z")

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I have just started using Node-RED, and am excited to get it to solve some tasks for me. I have attempted to connect to Azure IoT Hub, and have succeeded in doing so. But it seems like too much data is being generated, …

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## [Accessing two serial ports simultaneously](https://discourse.nodered.org/t/accessing-two-serial-ports-simultaneously/6393)

<div class="topic-metadata">

**Author:** [@gsr](https://discourse.nodered.org/u/gsr)\
**Replies:** 4\
**Last updated:** [5 January 2019 09:15 UTC](https://discourse.nodered.org/t/accessing-two-serial-ports-simultaneously/6393 "2019-01-05T09:15:01Z")

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Hi, How to configure node-red for two serial ports?

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## [Sharepoint library](https://discourse.nodered.org/t/sharepoint-library/6284)

<div class="topic-metadata">

**Author:** [@olab](https://discourse.nodered.org/u/olab)\
**Replies:** 11\
**Last updated:** [5 January 2019 08:46 UTC](https://discourse.nodered.org/t/sharepoint-library/6284 "2019-01-05T08:46:48Z")

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Hi, I'm quite new in Node-red... Is there a way to access an excel file located in a sharepoint library and poll data from it into a Node-red flow?

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## [Dashboard option not coming in Node-RED after update](https://discourse.nodered.org/t/dashboard-option-not-coming-in-node-red-after-update/6380)

<div class="topic-metadata">

**Author:** [@noobPLC](https://discourse.nodered.org/u/noobPLC)\
**Replies:** 12\
**Last updated:** [5 January 2019 08:14 UTC](https://discourse.nodered.org/t/dashboard-option-not-coming-in-node-red-after-update/6380 "2019-01-05T08:14:20Z")

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I am not able to see Dashboard option even after updating node-red multiple times. I am just trying to create a Simple HMI for a LED on/off using raspberry PI

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## [Return triggers Maximum call stack size](https://discourse.nodered.org/t/return-triggers-maximum-call-stack-size/6368)

<div class="topic-metadata">

**Author:** [@jboutwell](https://discourse.nodered.org/u/jboutwell)\
**Replies:** 9\
**Last updated:** [4 January 2019 21:59 UTC](https://discourse.nodered.org/t/return-triggers-maximum-call-stack-size/6368 "2019-01-04T21:59:18Z")

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Hello, I am consistently getting a : "RangeError: Maximum call stack size exceeded" error that crashes node.red when I send a " return \[null, msg\]" The code is checking to see if a global variable timestamp hasn't been…

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## [Passing an input to exec node which execute a python script](https://discourse.nodered.org/t/passing-an-input-to-exec-node-which-execute-a-python-script/5763)

<div class="topic-metadata">

**Author:** [@s.kh](https://discourse.nodered.org/u/s.kh)\
**Replies:** 11\
**Last updated:** [4 January 2019 21:16 UTC](https://discourse.nodered.org/t/passing-an-input-to-exec-node-which-execute-a-python-script/5763 "2019-01-04T21:16:45Z")

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hi , i have a python script (.py) which i can execute in node-red easily. but i need to pass a json string to my python script as an input. in another word the python script which is on my local drive should read the in…

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## [HTTP Response Timeout](https://discourse.nodered.org/t/http-response-timeout/6400)

<div class="topic-metadata">

**Author:** [@Lee](https://discourse.nodered.org/u/Lee)\
**Replies:** 1\
**Last updated:** [4 January 2019 19:59 UTC](https://discourse.nodered.org/t/http-response-timeout/6400 "2019-01-04T19:59:54Z")

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I have an http request going to a third party API. I am getting a timeout error on the response. "Session has timed out. Please login again." When I do the same request, same headers, using Postman, the call returns d…

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## [Missing info on the join](https://discourse.nodered.org/t/missing-info-on-the-join/565)

<div class="topic-metadata">

**Author:** [@Jakeiscrazy](https://discourse.nodered.org/u/Jakeiscrazy)\
**Replies:** 14\
**Last updated:** [15 July 2018 05:51 UTC](https://discourse.nodered.org/t/missing-info-on-the-join/565 "2018-07-15T05:51:39Z")

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So here is a weird one. When I drop a join component into a flow it’s coming up as join.join and it’s missing info. Any idea what’s wrong here? \[140\]

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## [How to convert to a function](https://discourse.nodered.org/t/how-to-convert-to-a-function/6170)

<div class="topic-metadata">

**Author:** [@gbond](https://discourse.nodered.org/u/gbond)\
**Replies:** 92\
**Last updated:** [4 January 2019 17:37 UTC](https://discourse.nodered.org/t/how-to-convert-to-a-function/6170 "2019-01-04T17:37:04Z")

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can anyone tell me how i would convert this in to a function so I can set varibles for the tigger times and delays etc? \[{"id":"3640f1c3.dbf8de","type":"trigger","z":"ff81c2c4.ef9ce8","op1":"true","op2":"false","op1type…

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## [\[red\] Uncaught Exception - node-red-contrib-netatmo-dasboard](https://discourse.nodered.org/t/red-uncaught-exception-node-red-contrib-netatmo-dasboard/6398)

<div class="topic-metadata">

**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 4\
**Last updated:** [4 January 2019 17:23 UTC](https://discourse.nodered.org/t/red-uncaught-exception-node-red-contrib-netatmo-dasboard/6398 "2019-01-04T17:23:21Z")

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Hello All Regarding the print screen attached of the \[red\] is there any suggestions to fix it ... I , As a traversal analysis I would suggest that we could have some way to report and support the the node developers…

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## [Custom UI Node Not Appearing In Group In Dashboard SideTab](https://discourse.nodered.org/t/custom-ui-node-not-appearing-in-group-in-dashboard-sidetab/6347)

<div class="topic-metadata">

**Author:** [@seth350](https://discourse.nodered.org/u/seth350)\
**Replies:** 7\
**Last updated:** [4 January 2019 15:47 UTC](https://discourse.nodered.org/t/custom-ui-node-not-appearing-in-group-in-dashboard-sidetab/6347 "2019-01-04T15:47:50Z")

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Good morning, I have recently come up with two ui nodes that are both experiencing the same problem. If you look at this picture, I have 19 linear-gauges in a group on the dashboard. This picture shows none of the l…

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## [Table like input](https://discourse.nodered.org/t/table-like-input/6391)

<div class="topic-metadata">

**Author:** [@jjrivasescola](https://discourse.nodered.org/u/jjrivasescola)\
**Replies:** 2\
**Last updated:** [4 January 2019 15:32 UTC](https://discourse.nodered.org/t/table-like-input/6391 "2019-01-04T15:32:48Z")

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Hello forum people, I´m not an expert in Node Red, so maybe you could help me. Thanks in advance!! I would like to work with the following input received from a table from an email : The main program will work at th…

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## [P2P communication](https://discourse.nodered.org/t/p2p-communication/6376)

<div class="topic-metadata">

**Author:** [@cpaolojo](https://discourse.nodered.org/u/cpaolojo)\
**Replies:** 2\
**Last updated:** [4 January 2019 14:01 UTC](https://discourse.nodered.org/t/p2p-communication/6376 "2019-01-04T14:01:41Z")

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hi all and Happy New year. I would establish a communication between Rpi and a smartphone. In other word I would control some input/output connected to Rpi using node-red dashboard displayed in the smartphone. To do th…

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## [OneWire sensors on Windows PC](https://discourse.nodered.org/t/onewire-sensors-on-windows-pc/6358)

<div class="topic-metadata">

**Author:** [@rowan.bradley](https://discourse.nodered.org/u/rowan.bradley)\
**Replies:** 2\
**Last updated:** [4 January 2019 09:48 UTC](https://discourse.nodered.org/t/onewire-sensors-on-windows-pc/6358 "2019-01-04T09:48:18Z")

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I'm just getting started with Node-Red (on Windows 8.1). I have several DS19B20 temperature sensors interfaced to the PC via a DS9490R OneWire to USB device. How do I get Node-Red to read the temperatures from these sens…

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## [Why am I getting garbage in payload?](https://discourse.nodered.org/t/why-am-i-getting-garbage-in-payload/6060)

<div class="topic-metadata">

**Author:** [@Bazmundi](https://discourse.nodered.org/u/Bazmundi)\
**Replies:** 10\
**Last updated:** [4 January 2019 08:37 UTC](https://discourse.nodered.org/t/why-am-i-getting-garbage-in-payload/6060 "2019-01-04T08:37:08Z")

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I have node-red v0.19.3 running on armbian on an orangepi zero. I have a snap of mosquitto running on the orangepi zero, so it is running default settings with no fiddling by me. I have a WEMOS D1 R2 MINI as client. I…

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## [Segmentation fault trying to start node-red on a Raspberry Pi 3](https://discourse.nodered.org/t/segmentation-fault-trying-to-start-node-red-on-a-raspberry-pi-3/6329)

<div class="topic-metadata">

**Author:** [@ron](https://discourse.nodered.org/u/ron)\
**Replies:** 5\
**Last updated:** [3 January 2019 21:00 UTC](https://discourse.nodered.org/t/segmentation-fault-trying-to-start-node-red-on-a-raspberry-pi-3/6329 "2019-01-03T21:00:18Z")

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Hi, My node-red installation was running just fine, until I had to reboot the Raspberry Pi where it was installed on. I did a sudo reboot and after the pi restarted, node-red didn't start automatically like I had config…

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## [Newbie: How to parse temperature data from Sonoff TH10](https://discourse.nodered.org/t/newbie-how-to-parse-temperature-data-from-sonoff-th10/5999)

<div class="topic-metadata">

**Author:** [@CraigW](https://discourse.nodered.org/u/CraigW)\
**Replies:** 3\
**Last updated:** [3 January 2019 20:40 UTC](https://discourse.nodered.org/t/newbie-how-to-parse-temperature-data-from-sonoff-th10/5999 "2019-01-03T20:40:07Z")

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Have a node red flow successfully processing 16 Sonoff basics {Tasmota firmware} with Pete Scargill's Big Timer on a RPi and it works perfectly. The dashboard for these Sonoffs also works fine. I am now beyond my expert…

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