# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1230

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

**Page:** 1231

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## [Inject node needs redeploying if changing name](https://discourse.nodered.org/t/inject-node-needs-redeploying-if-changing-name/15390)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [11 September 2019 09:03 UTC](https://discourse.nodered.org/t/inject-node-needs-redeploying-if-changing-name/15390 "2019-09-11T09:03:17Z")

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Changing the name on an inject mode causes the button to be disabled and it has to be re-deployed. Just noticed this when doing a bit of housekeeping Debug node carries on working fine if name is changed on that one I…

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## [Allow continuous display of virtual wires and labels from link nodes](https://discourse.nodered.org/t/allow-continuous-display-of-virtual-wires-and-labels-from-link-nodes/15374)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 15\
**Last updated:** [11 September 2019 07:02 UTC](https://discourse.nodered.org/t/allow-continuous-display-of-virtual-wires-and-labels-from-link-nodes/15374 "2019-09-11T07:02:53Z")

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This suggestion comes out of a recent discussion https://discourse.nodered.org/t/increase-canvas-size-supersize-flows/14855 about enlarging the editor workspace. An obvious approach when a flow becomes becomes too large …

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## [Msg payload printing the data](https://discourse.nodered.org/t/msg-payload-printing-the-data/15383)

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**Author:** [@Sanketp](https://discourse.nodered.org/u/Sanketp)\
**Replies:** 1\
**Last updated:** [11 September 2019 06:37 UTC](https://discourse.nodered.org/t/msg-payload-printing-the-data/15383 "2019-09-11T06:37:12Z")

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I want my custom node to print the message like file is created in the debug node how can i do this

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## [LED 5050 GPIO Dashboard](https://discourse.nodered.org/t/led-5050-gpio-dashboard/15268)

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**Author:** [@the\_captain](https://discourse.nodered.org/u/the_captain)\
**Replies:** 5\
**Last updated:** [10 September 2019 23:07 UTC](https://discourse.nodered.org/t/led-5050-gpio-dashboard/15268 "2019-09-10T23:07:23Z")

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Hi Guys Ok I am trying to figure out how I can use Node-red to power my 5050 LED strip. I can create a button for each colour. but when I create a slider as well as have a button for each colour the slider wont work o…

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## [Performance Issues](https://discourse.nodered.org/t/performance-issues/15376)

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**Author:** [@injector22](https://discourse.nodered.org/u/injector22)\
**Replies:** 2\
**Last updated:** [10 September 2019 22:59 UTC](https://discourse.nodered.org/t/performance-issues/15376 "2019-09-10T22:59:14Z")

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I have a flow (included below) that receives packets via UDP, splits up the bytes, then parses the bytes to data and passes them to a dashboard. When I only have a single dashboard item (battery power) the dashboard is q…

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## [MQTT nodes. Old messages. QOS. Retain](https://discourse.nodered.org/t/mqtt-nodes-old-messages-qos-retain/15355)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 16\
**Last updated:** [10 September 2019 17:00 UTC](https://discourse.nodered.org/t/mqtt-nodes-old-messages-qos-retain/15355 "2019-09-10T17:00:24Z")

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Ok, I have noticed something with MQTT messages and turning machines on/off and have some questions. I am making new flows that send/receive MQTT messages. Some messages need to be retained and some don't. Some need Q…

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## [Node-red-contrib-remote-io, digital output for joining bool to word](https://discourse.nodered.org/t/node-red-contrib-remote-io-digital-output-for-joining-bool-to-word/11798)

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**Author:** [@tomrey](https://discourse.nodered.org/u/tomrey)\
**Replies:** 3\
**Last updated:** [10 September 2019 12:15 UTC](https://discourse.nodered.org/t/node-red-contrib-remote-io-digital-output-for-joining-bool-to-word/11798 "2019-09-10T12:15:23Z")

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Hi all, node-red-contrib-remote-io helps me splitting Modbus-words into bools through the digital input node. Before sending bool back to my Wago PLC, I have to join bools back into word. Is there an opposite node avai…

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## [Wago 750-493 read data](https://discourse.nodered.org/t/wago-750-493-read-data/8510)

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**Author:** [@moltenpiston](https://discourse.nodered.org/u/moltenpiston)\
**Replies:** 2\
**Last updated:** [10 September 2019 12:14 UTC](https://discourse.nodered.org/t/wago-750-493-read-data/8510 "2019-09-10T12:14:14Z")

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Hello !! I have a 750-493 wago, connected to a 750-352. I can not understand which register use to read via modbus the voltage, current and frequency of the 3 phases. thank you for your help

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## [Should UI nodes create an empty msg.topic if it is left blank?](https://discourse.nodered.org/t/should-ui-nodes-create-an-empty-msg-topic-if-it-is-left-blank/15234)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 8\
**Last updated:** [10 September 2019 11:51 UTC](https://discourse.nodered.org/t/should-ui-nodes-create-an-empty-msg-topic-if-it-is-left-blank/15234 "2019-09-10T11:51:50Z")

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This question comes up as a result of another thread where a ui-button sent a msg to a ui-text node and the ui-text node had the label set to {{msg.topic}}. The problem was that the topic in the ui-button was left empty.…

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## [Node UI Not Response](https://discourse.nodered.org/t/node-ui-not-response/15354)

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**Author:** [@hikmet](https://discourse.nodered.org/u/hikmet)\
**Replies:** 5\
**Last updated:** [10 September 2019 11:17 UTC](https://discourse.nodered.org/t/node-ui-not-response/15354 "2019-09-10T11:17:35Z")

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When I deployed an extremely simple page, the UI appears as follows. I'm trying to work on Rasbperry Pi

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## [Simple debugging of Dashboard Widget](https://discourse.nodered.org/t/simple-debugging-of-dashboard-widget/7530)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 16\
**Last updated:** [10 September 2019 10:57 UTC](https://discourse.nodered.org/t/simple-debugging-of-dashboard-widget/7530 "2019-09-10T10:57:19Z")

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I am trying to do some simple debugging of the client side of a Dashboard Widget node-red-contrib-ui-led. I just want to be able to follow the flow to see if execution is getting where it should, so something like alert…

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## [Subflow disappointment](https://discourse.nodered.org/t/subflow-disappointment/15323)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 8\
**Last updated:** [10 September 2019 10:23 UTC](https://discourse.nodered.org/t/subflow-disappointment/15323 "2019-09-10T10:23:58Z")

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I just finished developing a subflow which controls my TFT display, its self contained using mqtt to send info to the display and receive info like when the screen is pressed etc, the subflow has just 3 outputs to intera…

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## [How to INSERT SQLite Timestamp in human date not UNIX timestamp form](https://discourse.nodered.org/t/how-to-insert-sqlite-timestamp-in-human-date-not-unix-timestamp-form/15346)

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**Author:** [@Yortz](https://discourse.nodered.org/u/Yortz)\
**Replies:** 3\
**Last updated:** [10 September 2019 08:58 UTC](https://discourse.nodered.org/t/how-to-insert-sqlite-timestamp-in-human-date-not-unix-timestamp-form/15346 "2019-09-10T08:58:52Z")

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I try to insert human date coupled with my data in table but always get error like this my flow \[{"id":"df7c4ab5.c42d2","type":"inject","z":"9c4e2b4a.f3bf3","name":"CREATE EMETER TABLE","topic":"","payload":"","paylo…

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## [Has anyone experience with Homematic and heater-controller?](https://discourse.nodered.org/t/has-anyone-experience-with-homematic-and-heater-controller/15347)

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**Author:** [@FrankP](https://discourse.nodered.org/u/FrankP)\
**Replies:** 2\
**Last updated:** [10 September 2019 08:41 UTC](https://discourse.nodered.org/t/has-anyone-experience-with-homematic-and-heater-controller/15347 "2019-09-10T08:41:25Z")

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Hi, i'm glad to see that someone has the same idea to visualize a heater's programming in the Node RED dashboard (node-red-contrib-heater). Now i want to bind it to a Homematic HM-CC-RT-DN heater valve. Has anyone done…

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## [Something I am really learning about programming in general](https://discourse.nodered.org/t/something-i-am-really-learning-about-programming-in-general/15264)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 17\
**Last updated:** [10 September 2019 07:48 UTC](https://discourse.nodered.org/t/something-i-am-really-learning-about-programming-in-general/15264 "2019-09-10T07:48:26Z")

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With recent events, an old proverb has come back to bite me big time. I read this a LONG LONG LONG time ago: Programming is 80% comments, 15% code and 5% luck. Maybe not to those extremes, but you REALLY REALLY need t…

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## [User Auth login from flow editor](https://discourse.nodered.org/t/user-auth-login-from-flow-editor/4070)

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**Author:** [@mako](https://discourse.nodered.org/u/mako)\
**Replies:** 10\
**Last updated:** [10 September 2019 07:11 UTC](https://discourse.nodered.org/t/user-auth-login-from-flow-editor/4070 "2019-09-10T07:11:58Z")

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Hello Noder's. Is it possible we can change admin user auth from the flow editor. Aiming towards the Raspberry pi ? Can the Exec module do this ? Is there a module that already does this? has anyone ever done this b…

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## [Flows not importing correctly between machines](https://discourse.nodered.org/t/flows-not-importing-correctly-between-machines/15336)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 11\
**Last updated:** [10 September 2019 05:26 UTC](https://discourse.nodered.org/t/flows-not-importing-correctly-between-machines/15336 "2019-09-10T05:26:47Z")

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(Also partly DASHBOARD as well, but....) As you may have seen I have been working on a dashboard recently for "machine health". I got the layout nice and was happy. I exported it and then imported it on another machin…

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## [Dashboard template: HTML form output without POST method](https://discourse.nodered.org/t/dashboard-template-html-form-output-without-post-method/15318)

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**Author:** [@chandrashekar](https://discourse.nodered.org/u/chandrashekar)\
**Replies:** 4\
**Last updated:** [10 September 2019 05:18 UTC](https://discourse.nodered.org/t/dashboard-template-html-form-output-without-post-method/15318 "2019-09-10T05:18:00Z")

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I have a html form in dashboard template. iam trying to get payload containing form values without POST method. POST method works fine. i want form values in an array or an object format upon submitting the form. but …

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## [Hex Coordinate Decoder](https://discourse.nodered.org/t/hex-coordinate-decoder/15335)

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**Author:** [@dvargas87](https://discourse.nodered.org/u/dvargas87)\
**Replies:** 1\
**Last updated:** [9 September 2019 22:39 UTC](https://discourse.nodered.org/t/hex-coordinate-decoder/15335 "2019-09-09T22:39:25Z")

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Hello, I am attempting to decode coordinate systems that are being sent over UDP to node red in what appears to be Int16LE. I have been trying to decipher how i can decode this coordinates to then send out of NodeRed vi…

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## [Error trying to run node red --safe](https://discourse.nodered.org/t/error-trying-to-run-node-red-safe/15334)

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**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 2\
**Last updated:** [9 September 2019 22:19 UTC](https://discourse.nodered.org/t/error-trying-to-run-node-red-safe/15334 "2019-09-09T22:19:07Z")

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Well I've done something wrong and NR just keeps crashing, so I thought I'd run in safe mode to launch the editor. Here is what I get. Any ideas how to resolve? What is "red"? pi@HomeController:~/.node-red $ node red -…

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## [\`function\` node. Not seeing the results I expect](https://discourse.nodered.org/t/function-node-not-seeing-the-results-i-expect/15319)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 5\
**Last updated:** [9 September 2019 21:10 UTC](https://discourse.nodered.org/t/function-node-not-seeing-the-results-i-expect/15319 "2019-09-09T21:10:03Z")

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I think it is more to do with what time it is here now. Simple thing: values (numbers) go into a function node. If it is 70, one thing happens. If it is 75, another thing happens. For testing, I also check if the va…

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## [PS: You can install npm-gui to more easily manage your packages and dependencies](https://discourse.nodered.org/t/ps-you-can-install-npm-gui-to-more-easily-manage-your-packages-and-dependencies/15283)

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**Author:** [@Alacritous](https://discourse.nodered.org/u/Alacritous)\
**Replies:** 23\
**Last updated:** [9 September 2019 20:35 UTC](https://discourse.nodered.org/t/ps-you-can-install-npm-gui-to-more-easily-manage-your-packages-and-dependencies/15283 "2019-09-09T20:35:35Z")

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See the details here. But basically install npm-gui As global dependency: npm install -g npm-gui or locally: npm install npm-gui Run it with npm-gui and open a browser and navigate to http://localhost:1337 I c…

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## [Route msg based on key name](https://discourse.nodered.org/t/route-msg-based-on-key-name/15322)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 18\
**Last updated:** [9 September 2019 18:51 UTC](https://discourse.nodered.org/t/route-msg-based-on-key-name/15322 "2019-09-09T18:51:09Z")

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Can I route a msg depending on its key name with basic nodes? e.g msg.payload is arriving on http in node as {"s3gpiocommand":"xxxx"} or {"s3gpioread":"yyyy"} I'd like to process them differently in two separate branc…

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## [Adding a "reduce" option to the Smooth node](https://discourse.nodered.org/t/adding-a-reduce-option-to-the-smooth-node/15180)

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**Author:** [@clickworkorange](https://discourse.nodered.org/u/clickworkorange)\
**Replies:** 25\
**Last updated:** [9 September 2019 18:11 UTC](https://discourse.nodered.org/t/adding-a-reduce-option-to-the-smooth-node/15180 "2019-09-09T18:11:44Z")

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I had the need to get the average value of a number of payloads, and hoped the Smooth node would let me do this. But I found it emits a message for every incoming message once the previous message buffer is full, resulti…

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## [Calling C/C++ functions from custom node](https://discourse.nodered.org/t/calling-c-c-functions-from-custom-node/13964)

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**Author:** [@Achronite](https://discourse.nodered.org/u/Achronite)\
**Replies:** 4\
**Last updated:** [9 September 2019 17:52 UTC](https://discourse.nodered.org/t/calling-c-c-functions-from-custom-node/13964 "2019-09-09T17:52:51Z")

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Hi All, I created a set of custom nodes for energenie devices a few months ago. The node uses functions written in C to interact with an energenie raspberry pi 433Mhz radio device. It currently uses the node ffi and re…

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## [Spacer not working as expected in UI](https://discourse.nodered.org/t/spacer-not-working-as-expected-in-ui/15203)

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**Author:** [@scorbin](https://discourse.nodered.org/u/scorbin)\
**Replies:** 5\
**Last updated:** [9 September 2019 17:31 UTC](https://discourse.nodered.org/t/spacer-not-working-as-expected-in-ui/15203 "2019-09-09T17:31:30Z")

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Hi I have a dashboard that I am trying to organize. I have 6 text nodes in a group populated by a flow. Between nodes 3 and 4 I wanted to add a spacer to ensure the last 3 nodes are displayed on a new line. I added a …

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## [Delay timer for switch](https://discourse.nodered.org/t/delay-timer-for-switch/15276)

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**Author:** [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Replies:** 5\
**Last updated:** [9 September 2019 16:25 UTC](https://discourse.nodered.org/t/delay-timer-for-switch/15276 "2019-09-09T16:25:14Z")

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Hi, I have a simple flow which turns on and off a light.(I have also integrated it with alexa so i can ask alexa to turn the light on and off). I'm trying to find a way that i can have a range of 4 switches that can turn…

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## [Is it possible to trigger a flow and wait for it to complete?](https://discourse.nodered.org/t/is-it-possible-to-trigger-a-flow-and-wait-for-it-to-complete/15321)

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**Author:** [@molesworth](https://discourse.nodered.org/u/molesworth)\
**Replies:** 6\
**Last updated:** [9 September 2019 14:35 UTC](https://discourse.nodered.org/t/is-it-possible-to-trigger-a-flow-and-wait-for-it-to-complete/15321 "2019-09-09T14:35:11Z")

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Quick summary : I'd like to trigger a flow from within a function node, then wait for it to complete, either by receiving a message or detecting a change in a context variable. It may be that the new async mode in v1.0 …

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## [Node opc ua compact server](https://discourse.nodered.org/t/node-opc-ua-compact-server/15303)

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**Author:** [@smalhao](https://discourse.nodered.org/u/smalhao)\
**Replies:** 6\
**Last updated:** [9 September 2019 13:15 UTC](https://discourse.nodered.org/t/node-opc-ua-compact-server/15303 "2019-09-09T13:15:26Z")

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I noticed that a new node for opc ua came up, namely the node opc ua compact server, i'd like to know if anyone has already used this node, i see that it has a tab to register with Local Discover Server and since i'm wor…

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## [The flows stopped due to missing node types. ^ movehub-config](https://discourse.nodered.org/t/the-flows-stopped-due-to-missing-node-types-movehub-config/15297)

<div class="topic-metadata">

**Author:** [@zhang](https://discourse.nodered.org/u/zhang)\
**Replies:** 16\
**Last updated:** [9 September 2019 12:30 UTC](https://discourse.nodered.org/t/the-flows-stopped-due-to-missing-node-types-movehub-config/15297 "2019-09-09T12:30:46Z")

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i have install the node of " movehub ". Now i don't need it . But it shows on Node-red always "the flows stopped due to missing node types. ^ movehub-config ". After Update the Movehub shows the event-log 2019-09-09T07:…

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