# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1117

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

**Page:** 1118

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## [Watson assistant v2 library not working](https://discourse.nodered.org/t/watson-assistant-v2-library-not-working/24739)

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**Author:** [@nins123](https://discourse.nodered.org/u/nins123)\
**Replies:** 0\
**Last updated:** [13 April 2020 10:13 UTC](https://discourse.nodered.org/t/watson-assistant-v2-library-not-working/24739 "2020-04-13T10:13:56Z")

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Hi guys, my node-red app Watson library disappeared when I inserted and redeployed the app with node-red-contrib-graphs. package.json file error: The flow stopped due to missing node types Inside the node red palet…

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## [Waiting for missing types to be registered](https://discourse.nodered.org/t/waiting-for-missing-types-to-be-registered/9282)

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**Author:** [@trujillo](https://discourse.nodered.org/u/trujillo)\
**Replies:** 12\
**Last updated:** [13 April 2020 08:49 UTC](https://discourse.nodered.org/t/waiting-for-missing-types-to-be-registered/9282 "2020-04-13T08:49:18Z")

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Hello, I've some problems with a node that I've made. This node use request to do a simple get request to any server. When I used the node for first time, it run well. Now, I change de project to add new nodes and the f…

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## [\[Node-Red-NodeGen\] Global Installation fails](https://discourse.nodered.org/t/node-red-nodegen-global-installation-fails/24732)

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**Author:** [@AiKju](https://discourse.nodered.org/u/AiKju)\
**Replies:** 0\
**Last updated:** [13 April 2020 08:26 UTC](https://discourse.nodered.org/t/node-red-nodegen-global-installation-fails/24732 "2020-04-13T08:26:53Z")

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Hi, I am trying to install Node-Red-NodeGen but it throws the following error: C:\\Projekte\\Lokal\\software\\develop\\GitHub\\NodeRed2Python\>docker exec flow-machine npm install -g node-red-nodegen npm WARN deprecated mkdi…

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## [\[node-red-node-serialport/serialport\] Error with node v13](https://discourse.nodered.org/t/node-red-node-serialport-serialport-error-with-node-v13/24427)

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**Author:** [@hughrobertson44](https://discourse.nodered.org/u/hughrobertson44)\
**Replies:** 9\
**Last updated:** [13 April 2020 07:52 UTC](https://discourse.nodered.org/t/node-red-node-serialport-serialport-error-with-node-v13/24427 "2020-04-13T07:52:56Z")

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I have a problem after installing node-red-node-serialport. After starting node red I get the following message: 7 Apr 20:22:05 - \[info\] Loading palette nodes 7 Apr 20:22:10 - \[warn\] ----------------------------------…

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## [Install Node via API from git url](https://discourse.nodered.org/t/install-node-via-api-from-git-url/24731)

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**Author:** [@Merkrow](https://discourse.nodered.org/u/Merkrow)\
**Replies:** 0\
**Last updated:** [13 April 2020 07:42 UTC](https://discourse.nodered.org/t/install-node-via-api-from-git-url/24731 "2020-04-13T07:42:42Z")

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I would like to install a new node using github repository url using this. Is this possible at this point? Or the only way to do this is manually update package.json? Thanks, Sergey

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## [Best way to integrate Ffmpeg in Node-RED](https://discourse.nodered.org/t/best-way-to-integrate-ffmpeg-in-node-red/23861)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 25\
**Last updated:** [13 April 2020 07:22 UTC](https://discourse.nodered.org/t/best-way-to-integrate-ffmpeg-in-node-red/23861 "2020-04-13T07:22:33Z")

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Hi folks, I have been experimenting with Ffmpeg in Node-RED in the past, but now I'm wondering perhaps I was doing it all wrong. Would love to have your opinions about it ... I think currently there are (at least) 3 w…

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## [Server side drawing - node proposal](https://discourse.nodered.org/t/server-side-drawing-node-proposal/24728)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 0\
**Last updated:** [13 April 2020 06:48 UTC](https://discourse.nodered.org/t/server-side-drawing-node-proposal/24728 "2020-04-13T06:48:40Z")

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Hi folks, I'm have been reading by server-side DOM trees, to solve an issue from another discussion. And last night @Steve-Mcl posted - in the discussion about coco ssd models - the following quote: The combination o…

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## [Send message to separate flow](https://discourse.nodered.org/t/send-message-to-separate-flow/24727)

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**Author:** [@injector22](https://discourse.nodered.org/u/injector22)\
**Replies:** 2\
**Last updated:** [13 April 2020 06:12 UTC](https://discourse.nodered.org/t/send-message-to-separate-flow/24727 "2020-04-13T06:12:45Z")

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Does anyone know if there is a way to send a message to a separate flow programmatically from a function node? I know I can route messages by adding extra outputs and using node.send but that's all within the same flow. …

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## [Line chart performance](https://discourse.nodered.org/t/line-chart-performance/4460)

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**Author:** [@abra](https://discourse.nodered.org/u/abra)\
**Replies:** 12\
**Last updated:** [13 November 2018 15:50 UTC](https://discourse.nodered.org/t/line-chart-performance/4460 "2018-11-13T15:50:02Z")

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Which is the recommended min.delay to dynamically add points to a line chart ? In our test-case an embedded device is publishing mqtt messages which are visualized in a line chart on a node-red dashboard. When the devic…

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## [Unable to listen on http://127.0.0.1:1880/](https://discourse.nodered.org/t/unable-to-listen-on-http-127-0-0-1-1880/8018)

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**Author:** [@Jakell](https://discourse.nodered.org/u/Jakell)\
**Replies:** 12\
**Last updated:** [12 April 2020 16:42 UTC](https://discourse.nodered.org/t/unable-to-listen-on-http-127-0-0-1-1880/8018 "2020-04-12T16:42:50Z")

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Whenever I try starting up Node-RED in Linux it comes up with this: What can I do to fix this? I've been through every forum that has a similar error, and nothing works or is relatable to my problem. Any help would be…

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## [Need ideas on how to Log and inspect changes to mqtt topics](https://discourse.nodered.org/t/need-ideas-on-how-to-log-and-inspect-changes-to-mqtt-topics/24707)

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**Author:** [@hominidae](https://discourse.nodered.org/u/hominidae)\
**Replies:** 6\
**Last updated:** [12 April 2020 18:58 UTC](https://discourse.nodered.org/t/need-ideas-on-how-to-log-and-inspect-changes-to-mqtt-topics/24707 "2020-04-12T18:58:26Z")

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Hi Folks, I do have a system, that is using a mqtt broker as central state hub (it is an EV Charging station). The software used in there is quite unique and open source, as well as getting frequent updates. When I tr…

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## [Node-red no data in table, no icons .. (uibuilder,boostrap/vue)](https://discourse.nodered.org/t/node-red-no-data-in-table-no-icons-uibuilder-boostrap-vue/24714)

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**Author:** [@MarekOravec](https://discourse.nodered.org/u/MarekOravec)\
**Replies:** 0\
**Last updated:** [12 April 2020 18:26 UTC](https://discourse.nodered.org/t/node-red-no-data-in-table-no-icons-uibuilder-boostrap-vue/24714 "2020-04-12T18:26:31Z")

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Hello all, im new at node-red. I installed node-red with uibuilder yesterday. Now im reading some data from sensors (like dht, relays.. etc etc.. ) working good. But when i wanna put some icons and tables for better inte…

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## [RPI Official touch screen](https://discourse.nodered.org/t/rpi-official-touch-screen/24704)

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**Author:** [@xsilvergs](https://discourse.nodered.org/u/xsilvergs)\
**Replies:** 2\
**Last updated:** [12 April 2020 16:18 UTC](https://discourse.nodered.org/t/rpi-official-touch-screen/24704 "2020-04-12T16:18:22Z")

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I am using the Official RPi Touch Screen V1.1 and wish to be able to turn the backlight off with a button. The command to turn the backlight OFF is: echo 1 \> /sys/class/backlight/rpi\_backlight/bl\_power The command to …

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## [SVG node - store the current state](https://discourse.nodered.org/t/svg-node-store-the-current-state/24671)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 13\
**Last updated:** [12 April 2020 15:42 UTC](https://discourse.nodered.org/t/svg-node-store-the-current-state/24671 "2020-04-12T15:42:14Z")

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Hi folks, Received last week a couple of questions about the node-red-contrib-ui-svg node. The users update the original SVG drawing by injecting input messages (e.g. to update the color of a specified shape), but afte…

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## [Controll Tasmota-Client via MQTT using Node-Red?](https://discourse.nodered.org/t/controll-tasmota-client-via-mqtt-using-node-red/24700)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 9\
**Last updated:** [12 April 2020 14:51 UTC](https://discourse.nodered.org/t/controll-tasmota-client-via-mqtt-using-node-red/24700 "2020-04-12T14:51:40Z")

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Hi, I have a Tasmota 8.2 client with 2 Relays here - connected to a local MQTT Server. I can easily access the client via HTTP and it pushes all commands via MQTT to the MQTT Server. I get all of these messages in Nod…

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## [\[NEW FEATURES\] node-red-contrib-queue-gate (version 1.4.0)](https://discourse.nodered.org/t/new-features-node-red-contrib-queue-gate-version-1-4-0/24605)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 2\
**Last updated:** [12 April 2020 13:49 UTC](https://discourse.nodered.org/t/new-features-node-red-contrib-queue-gate-version-1-4-0/24605 "2020-04-12T13:49:48Z")

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Node-red-contrib-queue-gate is a node for controlling message flow, including message queueing capability. This update adds three new commands, suggested and implemented by @colin. The status command refreshes the node …

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## [Help splitting mqtt message into parts](https://discourse.nodered.org/t/help-splitting-mqtt-message-into-parts/24696)

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**Author:** [@grumpywhale](https://discourse.nodered.org/u/grumpywhale)\
**Replies:** 14\
**Last updated:** [12 April 2020 13:49 UTC](https://discourse.nodered.org/t/help-splitting-mqtt-message-into-parts/24696 "2020-04-12T13:49:31Z")

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I am trying to move from using a pi as a sensor to a d1mini using tasmoto, i have the sensor working and publishing to a topic that works, and nodered will pick up the string. However, it comes accross as a single string…

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## [If statement with function node](https://discourse.nodered.org/t/if-statement-with-function-node/24505)

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**Author:** [@Ahd](https://discourse.nodered.org/u/Ahd)\
**Replies:** 10\
**Last updated:** [12 April 2020 13:06 UTC](https://discourse.nodered.org/t/if-statement-with-function-node/24505 "2020-04-12T13:06:09Z")

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Hi I have the following flow which is read mac address from the database. Then there is a function node that works to checks the mac existence of the mac by using the if statement as shown in the code below. it's run an…

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## [Alexa home skills not working from Alexa app on Win10 PC](https://discourse.nodered.org/t/alexa-home-skills-not-working-from-alexa-app-on-win10-pc/24688)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 4\
**Last updated:** [12 April 2020 13:02 UTC](https://discourse.nodered.org/t/alexa-home-skills-not-working-from-alexa-app-on-win10-pc/24688 "2020-04-12T13:02:05Z")

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Don't think direct Node-RED issue but just checking if anyone else has seen this behaviour I've got a Node-RED flow that uses the @hardillb alexa-home node and I use the Alexa app on my PC in computer room instead of a…

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## [Modbus RTU RS485 error when calling different Unit-ID's](https://discourse.nodered.org/t/modbus-rtu-rs485-error-when-calling-different-unit-ids/20303)

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**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\
**Replies:** 1\
**Last updated:** [12 April 2020 12:14 UTC](https://discourse.nodered.org/t/modbus-rtu-rs485-error-when-calling-different-unit-ids/20303 "2020-04-12T12:14:53Z")

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Good day everyone, I have a SDM120 and SDM630 KW/H meter. One has ID 1 the other ID 2. When I write a flow which calls either 1 or 2, it works fine, when I write a flow that calls both......., I get an error. It th…

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## [Parent flow context question](https://discourse.nodered.org/t/parent-flow-context-question/24691)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 1\
**Last updated:** [12 April 2020 12:13 UTC](https://discourse.nodered.org/t/parent-flow-context-question/24691 "2020-04-12T12:13:34Z")

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I am successfully using flow.get('$parent.foo') in several subflows necessarily located in one, what has become overtime a very large flow, the result is node-red slows to a crawl when I am on that flow page, I want to s…

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## [Watson STT & TTS "Send is not a function"](https://discourse.nodered.org/t/watson-stt-tts-send-is-not-a-function/24543)

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**Author:** [@radioman192](https://discourse.nodered.org/u/radioman192)\
**Replies:** 6\
**Last updated:** [12 April 2020 11:03 UTC](https://discourse.nodered.org/t/watson-stt-tts-send-is-not-a-function/24543 "2020-04-12T11:03:28Z")

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I'm trying to work through the Watson project to create a voice enabled Covid-19 chatbot using node-red (https://developer.ibm.com/tutorials/create-a-voice-enabled-covid-19-chatbot-using-node-red/) but cannot get the STT…

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## [Unwanted delay in home assistant call service node, fast switching not possible?](https://discourse.nodered.org/t/unwanted-delay-in-home-assistant-call-service-node-fast-switching-not-possible/24683)

<div class="topic-metadata">

**Author:** [@dirktheman](https://discourse.nodered.org/u/dirktheman)\
**Replies:** 2\
**Last updated:** [12 April 2020 09:06 UTC](https://discourse.nodered.org/t/unwanted-delay-in-home-assistant-call-service-node-fast-switching-not-possible/24683 "2020-04-12T09:06:05Z")

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I have this fairly basic setup, consisting of a switch that I use to control a light. The switch triggers a events:state node, a switch node checks which button was pushed, and it sends a trigger to a call:service node. …

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## [Using variables](https://discourse.nodered.org/t/using-variables/24681)

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**Author:** [@speedyrazor](https://discourse.nodered.org/u/speedyrazor)\
**Replies:** 3\
**Last updated:** [12 April 2020 08:23 UTC](https://discourse.nodered.org/t/using-variables/24681 "2020-04-12T08:23:59Z")

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Hi, I am familiar with python, and use of variables, but I just can quite get my head around how to use them in Node Red, so would greatly appreciate a working example. This is the essence of what I am trying to achieve…

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## [Multiple gpio with function](https://discourse.nodered.org/t/multiple-gpio-with-function/24666)

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**Author:** [@stinggray](https://discourse.nodered.org/u/stinggray)\
**Replies:** 3\
**Last updated:** [12 April 2020 06:07 UTC](https://discourse.nodered.org/t/multiple-gpio-with-function/24666 "2020-04-12T06:07:05Z")

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I have a newbe question. I'm setting up a dashboard to monitor liquid in tanks. I will use 4 sensors to a digital pin on an Arduino then to rpi. In node-red after receiving the gpio If it's high I change it to .20, so I…

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## [Muliply values from Dropdown menu](https://discourse.nodered.org/t/muliply-values-from-dropdown-menu/24653)

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**Author:** [@moeedejazkhan](https://discourse.nodered.org/u/moeedejazkhan)\
**Replies:** 7\
**Last updated:** [12 April 2020 07:33 UTC](https://discourse.nodered.org/t/muliply-values-from-dropdown-menu/24653 "2020-04-12T07:33:06Z")

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Greetings, I am new here and I wanted to add 3 values selected from dropdown. Like, there are 3 dropdowns and I want to multiply selected options and show result in ui. I tried my best but failed. Kindly do help me. Lo…

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## [I2C ADS1115 ADC Chip - Not all channels in data](https://discourse.nodered.org/t/i2c-ads1115-adc-chip-not-all-channels-in-data/24616)

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**Author:** [@Askjerry](https://discourse.nodered.org/u/Askjerry)\
**Replies:** 12\
**Last updated:** [12 April 2020 00:18 UTC](https://discourse.nodered.org/t/i2c-ads1115-adc-chip-not-all-channels-in-data/24616 "2020-04-12T00:18:45Z")

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I got a flow working great... buttons, blinky lights... GPIO... all good. I added an ADS1115 analog to digital chip and you MUST connect the channels in a daisy-chain combination or it will fail Node Red so hard you wil…

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## [Phoscon (Conbee) in Node-red](https://discourse.nodered.org/t/phoscon-conbee-in-node-red/24622)

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**Author:** [@Michael](https://discourse.nodered.org/u/Michael)\
**Replies:** 2\
**Last updated:** [11 April 2020 22:02 UTC](https://discourse.nodered.org/t/phoscon-conbee-in-node-red/24622 "2020-04-11T22:02:04Z")

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Hello, im using node-red and Phoscon in Docker Containers on an Raspbi 3b+ I get a websocket Connection from Node Red to Phoscon. But i dont get the Api Key from the Phoscon App. In this Topic was the same Problem: …

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## [Alexa amazon con node red](https://discourse.nodered.org/t/alexa-amazon-con-node-red/24654)

<div class="topic-metadata">

**Author:** [@emil\_m](https://discourse.nodered.org/u/emil_m)\
**Replies:** 1\
**Last updated:** [11 April 2020 21:30 UTC](https://discourse.nodered.org/t/alexa-amazon-con-node-red/24654 "2020-04-11T21:30:44Z")

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Hi. I am doing home automation with Alexa Amazon through node-red and I would like to add the function that when I turn on or off an Alexa device that tells me: turning on the light. or turning off the light or what I sa…

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## [How to send xml over tcp?](https://discourse.nodered.org/t/how-to-send-xml-over-tcp/24663)

<div class="topic-metadata">

**Author:** [@knoepsche](https://discourse.nodered.org/u/knoepsche)\
**Replies:** 1\
**Last updated:** [11 April 2020 20:14 UTC](https://discourse.nodered.org/t/how-to-send-xml-over-tcp/24663 "2020-04-11T20:14:02Z")

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What is the right way to send xml over tcp? The command was explained like this (the xml part is just an example): \* Add\\r\\n \* \<id\>\\r\\n \* \<xml\>\<data\>\</data\>\</xml\>\\r\\n\\r\\n Before sending the msg to a tcp-out Node I cod…

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