# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=534

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

**Page:** 535

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## [Smart Meter Flow stops after a while](https://discourse.nodered.org/t/smart-meter-flow-stops-after-a-while/47342)

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**Author:** [@Wurmi](https://discourse.nodered.org/u/Wurmi)\
**Replies:** 6\
**Last updated:** [22 June 2021 14:04 UTC](https://discourse.nodered.org/t/smart-meter-flow-stops-after-a-while/47342 "2021-06-22T14:04:54Z")

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I have a problem with my Smart Meter Flow from here It works for a while... sometimes a day and sometimes just for a few hours. After a deploy it takes a few seconds and then it runs again for a while. Dont know w…

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## [Starting flow while node red starts up](https://discourse.nodered.org/t/starting-flow-while-node-red-starts-up/47475)

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**Author:** [@OmkarNodered](https://discourse.nodered.org/u/OmkarNodered)\
**Replies:** 2\
**Last updated:** [22 June 2021 11:57 UTC](https://discourse.nodered.org/t/starting-flow-while-node-red-starts-up/47475 "2021-06-22T11:57:22Z")

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Hello, I am using a simple node red flow in which I am putting data into mongo db using mongo db node. I want to this flow to be started automatically when I start node red. Is there any solution where we my flow get inj…

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## [How to set ResponseTopic in mqtt request message](https://discourse.nodered.org/t/how-to-set-responsetopic-in-mqtt-request-message/47471)

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**Author:** [@tetrived](https://discourse.nodered.org/u/tetrived)\
**Replies:** 2\
**Last updated:** [22 June 2021 10:52 UTC](https://discourse.nodered.org/t/how-to-set-responsetopic-in-mqtt-request-message/47471 "2021-06-22T10:52:40Z")

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Hello All, We want to pass response topic as a part of MQTT message. How can we pass response topic along with message. We tried with function node by setting up property "ResponseTopic" but it doesn't seems to be worki…

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## [Pangeanic - machine translation company](https://discourse.nodered.org/t/pangeanic-machine-translation-company/47473)

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**Author:** [@alexhelle](https://discourse.nodered.org/u/alexhelle)\
**Replies:** 0\
**Last updated:** [22 June 2021 10:47 UTC](https://discourse.nodered.org/t/pangeanic-machine-translation-company/47473 "2021-06-22T10:47:12Z")

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Hello everyone! :wave: I’m Alex and as the R&D of machine translation products at Pangeanic, I thought you might find what we’ve been working on with \[Deep Adaptive Machine Translation\] as interesting for this community…

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## [Buffer string characters come out weird](https://discourse.nodered.org/t/buffer-string-characters-come-out-weird/47454)

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**Author:** [@Athurian](https://discourse.nodered.org/u/Athurian)\
**Replies:** 1\
**Last updated:** [22 June 2021 08:26 UTC](https://discourse.nodered.org/t/buffer-string-characters-come-out-weird/47454 "2021-06-22T08:26:00Z")

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Buffer string characters come out weird. The code looks like this and it comes out weird in the debug window. The numbers come out fine... If I press the buffer as a string, it comes out as follows. Any solution? For…

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## [Interlock multiple Modbus TCP Read operation to same server](https://discourse.nodered.org/t/interlock-multiple-modbus-tcp-read-operation-to-same-server/47459)

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**Author:** [@jumpier](https://discourse.nodered.org/u/jumpier)\
**Replies:** 3\
**Last updated:** [22 June 2021 07:51 UTC](https://discourse.nodered.org/t/interlock-multiple-modbus-tcp-read-operation-to-same-server/47459 "2021-06-22T07:51:00Z")

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Hy, i need to request many data from a single device, using Modbus TCP read; the device is used as a gateway ti other 6 slave with differente Modbus ID (e.g. 192.168.120.100 ID = 1 to device 01, 192.168.10.100 ID = 2 to…

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## [How to use function node to split hexdata](https://discourse.nodered.org/t/how-to-use-function-node-to-split-hexdata/47457)

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**Author:** [@Eldho-Abraham-coder](https://discourse.nodered.org/u/Eldho-Abraham-coder)\
**Replies:** 5\
**Last updated:** [22 June 2021 07:21 UTC](https://discourse.nodered.org/t/how-to-use-function-node-to-split-hexdata/47457 "2021-06-22T07:21:32Z")

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here i am sending binary coded switch values for each rooms to the serial node eg: 01,01..........02,03 .....means room1switch 1 is pressed and room2switch2,3 is pressed.

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## [Set nodered's interface to display in English or Chinese](https://discourse.nodered.org/t/set-nodereds-interface-to-display-in-english-or-chinese/47460)

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**Author:** [@lei1](https://discourse.nodered.org/u/lei1)\
**Replies:** 1\
**Last updated:** [22 June 2021 06:40 UTC](https://discourse.nodered.org/t/set-nodereds-interface-to-display-in-english-or-chinese/47460 "2021-06-22T06:40:26Z")

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i.e. display the prompts etc. in the interface in English

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## [Sent different data to one MQTT Display](https://discourse.nodered.org/t/sent-different-data-to-one-mqtt-display/47425)

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**Author:** [@spike318](https://discourse.nodered.org/u/spike318)\
**Replies:** 6\
**Last updated:** [21 June 2021 17:25 UTC](https://discourse.nodered.org/t/sent-different-data-to-one-mqtt-display/47425 "2021-06-21T17:25:49Z")

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I ve created a project with 2 Displays with different names, i'm new with nod red, now i want to sent more data from different devices to one display. I sent the date form MQQT from domoticz Can some one please help…

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## [How to check that a value exists in a json list of key/value pairs](https://discourse.nodered.org/t/how-to-check-that-a-value-exists-in-a-json-list-of-key-value-pairs/47441)

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**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 4\
**Last updated:** [21 June 2021 16:00 UTC](https://discourse.nodered.org/t/how-to-check-that-a-value-exists-in-a-json-list-of-key-value-pairs/47441 "2021-06-21T16:00:57Z")

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I know I could do this with a function node (or perhaps a jsonata value in a switch node), but I'm wondering if there's a (simple) way to do this with the basic (i.e. core) nodes that come with a fresh node red install..…

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## [Sensor in combination with timeswitch not working](https://discourse.nodered.org/t/sensor-in-combination-with-timeswitch-not-working/47396)

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**Author:** [@Rob](https://discourse.nodered.org/u/Rob)\
**Replies:** 6\
**Last updated:** [21 June 2021 15:11 UTC](https://discourse.nodered.org/t/sensor-in-combination-with-timeswitch-not-working/47396 "2021-06-21T15:11:32Z")

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Hi, I admit, I'm new...and I hope it's something stupid...but I don't see it... I'trying to start a pump (or whatever, an output on the Pi) if the temperature sensor is higher than a certain value AND at a certain time…

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## [\[Solved\] screenshot node - wait for webpage to fully load before taking snapshot](https://discourse.nodered.org/t/solved-screenshot-node-wait-for-webpage-to-fully-load-before-taking-snapshot/45979)

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**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 6\
**Last updated:** [21 June 2021 14:30 UTC](https://discourse.nodered.org/t/solved-screenshot-node-wait-for-webpage-to-fully-load-before-taking-snapshot/45979 "2021-06-21T14:30:11Z")

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Web pages are getting more and more complicated these days and more often than not, take more than a few seconds to fully load. One example that I wanted for my Node-RED dashboard is a screenshot of the high altitude ba…

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## [MQTT & node-red-contrib-tuya-smart-device Node Problems](https://discourse.nodered.org/t/mqtt-node-red-contrib-tuya-smart-device-node-problems/47379)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 21\
**Last updated:** [21 June 2021 14:20 UTC](https://discourse.nodered.org/t/mqtt-node-red-contrib-tuya-smart-device-node-problems/47379 "2021-06-21T14:20:16Z")

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I have just recently started having problems with MQTT and my node-red-contrib-tuya-smart-device nodes. The issue is, whenever I send an MQTT message to the Tuya node ALL the MQTT nodes on the relevant Node-Red instance…

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## [Return of the evil MQTT message recevied twice issue?](https://discourse.nodered.org/t/return-of-the-evil-mqtt-message-recevied-twice-issue/47440)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 4\
**Last updated:** [21 June 2021 13:55 UTC](https://discourse.nodered.org/t/return-of-the-evil-mqtt-message-recevied-twice-issue/47440 "2021-06-21T13:55:13Z")

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I have been working on a python MQTT receiver for devices that just can't handle NR (and the flows I want to run) in all of its glory. This has been going well so far until now. I have a python script that can run stan…

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## [Show grid checked but no grid?](https://discourse.nodered.org/t/show-grid-checked-but-no-grid/47373)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [21 June 2021 12:45 UTC](https://discourse.nodered.org/t/show-grid-checked-but-no-grid/47373 "2021-06-21T12:45:52Z")

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Show grid checked but no grid? Version 1.3.5, FireFox...

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## [Using PM2 on MacOS: fs-ops-dir node (node-red-contrib-fs-ops) permission issue](https://discourse.nodered.org/t/using-pm2-on-macos-fs-ops-dir-node-node-red-contrib-fs-ops-permission-issue/47405)

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**Author:** [@rakgupta](https://discourse.nodered.org/u/rakgupta)\
**Replies:** 7\
**Last updated:** [21 June 2021 12:21 UTC](https://discourse.nodered.org/t/using-pm2-on-macos-fs-ops-dir-node-node-red-contrib-fs-ops-permission-issue/47405 "2021-06-21T12:21:23Z")

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UPDATE: This is part of node-red-contrib-fs-ops Hello - I am running into what I think is a permissions problem with the fs-ops-dir node (directory node) when using PM2. I have a flow that scans a folder, identifies the…

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## [Split array after link OUT / IN](https://discourse.nodered.org/t/split-array-after-link-out-in/47435)

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**Author:** [@jumpier](https://discourse.nodered.org/u/jumpier)\
**Replies:** 4\
**Last updated:** [21 June 2021 12:12 UTC](https://discourse.nodered.org/t/split-array-after-link-out-in/47435 "2021-06-21T12:12:05Z")

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Good Mornig, i've write a flow with 3 Modbus connection; each Modbus connection retrive an array data each of 95 elements. Then i've link out these 3 array to other flow. On flow "data", i've use link IN Now, how i ca…

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## [Deploying NodeRED project support](https://discourse.nodered.org/t/deploying-nodered-project-support/732)

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**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 2\
**Last updated:** [21 June 2021 11:27 UTC](https://discourse.nodered.org/t/deploying-nodered-project-support/732 "2021-06-21T11:27:36Z")

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I’m wondering how to put the project feature to good use in a cloud environment (currently on Heroku). I can securely deploy ssh keys, so I wouldn’t need to use ssh-keygen. What I’d love to do: Use a sshkey I provided …

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## [Count the messages](https://discourse.nodered.org/t/count-the-messages/47412)

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**Author:** [@usmanEmder](https://discourse.nodered.org/u/usmanEmder)\
**Replies:** 12\
**Last updated:** [21 June 2021 10:58 UTC](https://discourse.nodered.org/t/count-the-messages/47412 "2021-06-21T10:58:48Z")

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Hello there, I need to count the messages (i.e. "0" or "1" but I need to consider only when msg.payload = 1), and when the message counter will equal to 16 then the system will automatically take other action. I had use…

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## [ESP32-CAM and Node RED](https://discourse.nodered.org/t/esp32-cam-and-node-red/18161)

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**Author:** [@lodv](https://discourse.nodered.org/u/lodv)\
**Replies:** 16\
**Last updated:** [21 June 2021 10:49 UTC](https://discourse.nodered.org/t/esp32-cam-and-node-red/18161 "2021-06-21T10:49:36Z")

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Hello, I like to stream a video to a template in Node RED. I know the IP address of my ESP32-CAM. When I type the IP address in the browser I can see the video stream. In Node Red I created a template with this code i…

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## [How do I know if data has been delivered when sending data with a nodered MQTT node?](https://discourse.nodered.org/t/how-do-i-know-if-data-has-been-delivered-when-sending-data-with-a-nodered-mqtt-node/47424)

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**Author:** [@Nathanli](https://discourse.nodered.org/u/Nathanli)\
**Replies:** 4\
**Last updated:** [21 June 2021 09:45 UTC](https://discourse.nodered.org/t/how-do-i-know-if-data-has-been-delivered-when-sending-data-with-a-nodered-mqtt-node/47424 "2021-06-21T09:45:07Z")

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The device is installed on board, there will be no network situation. So you need to realize that after the network reconnection, the data of the disconnection time period should also be sent out, I wonder if MQTT itself…

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## [Forward message after twice "false"](https://discourse.nodered.org/t/forward-message-after-twice-false/47402)

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**Author:** [@volker1078](https://discourse.nodered.org/u/volker1078)\
**Replies:** 2\
**Last updated:** [21 June 2021 09:26 UTC](https://discourse.nodered.org/t/forward-message-after-twice-false/47402 "2021-06-21T09:26:40Z")

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Hello, I have the "Adv Ping" node and then a function node with the following code: msg.tripTime = msg.payload; msg.payload = msg.payload! == false? "VServer running": "VServer cannot be reached"; return msg; This…

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## [Count day over xTemp | store it | Telegram it](https://discourse.nodered.org/t/count-day-over-xtemp-store-it-telegram-it/47403)

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**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\
**Replies:** 3\
**Last updated:** [21 June 2021 07:58 UTC](https://discourse.nodered.org/t/count-day-over-xtemp-store-it-telegram-it/47403 "2021-06-21T07:58:59Z")

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Hello i would like to count days this happen. The Part to get the data und send a basic Telegram works, but i would like to have more, but don't know what path to go. This are two example. Tn20GT = Tropennacht = Tropi…

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## [Pool robot - Dolphin 300i](https://discourse.nodered.org/t/pool-robot-dolphin-300i/47422)

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**Author:** [@caveman](https://discourse.nodered.org/u/caveman)\
**Replies:** 0\
**Last updated:** [21 June 2021 07:39 UTC](https://discourse.nodered.org/t/pool-robot-dolphin-300i/47422 "2021-06-21T07:39:54Z")

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Hi all, did somebody integrate his pool robot in node red? it would be enough to get the cleaning status (to display in dashboard). My device is a Maytronics Dolphin 300i ( Dolphin S 300i Residential Pools Robotic Clea…

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## [From its-posible-open-a-program-from-node-red-in-windows/21734 \<with NSSMService\>](https://discourse.nodered.org/t/from-its-posible-open-a-program-from-node-red-in-windows-21734-with-nssmservice/47419)

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**Author:** [@hotkhwan](https://discourse.nodered.org/u/hotkhwan)\
**Replies:** 0\
**Last updated:** [21 June 2021 07:02 UTC](https://discourse.nodered.org/t/from-its-posible-open-a-program-from-node-red-in-windows-21734-with-nssmservice/47419 "2021-06-21T07:02:08Z")

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This good community I has same this case for NSSM service nodered on windows It run as system Share my solution: Use windows task scheduler for resolve it Example Code \[{"id":"37ec7f9a.24e02","type":"file","z":"d9b6…

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## [Node-RED changelog for builtin nodes?](https://discourse.nodered.org/t/node-red-changelog-for-builtin-nodes/47404)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 1\
**Last updated:** [20 June 2021 17:43 UTC](https://discourse.nodered.org/t/node-red-changelog-for-builtin-nodes/47404 "2021-06-20T17:43:38Z")

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Hi, Is there a changelog for built-in nodes? Basically I'm trying to trace when this option appeared, and I'd like to read more about it as I can't find anything online or in the node's documentation: I'm having pr…

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## [Node red Telegram function to get a Channel ID](https://discourse.nodered.org/t/node-red-telegram-function-to-get-a-channel-id/47400)

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**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\
**Replies:** 1\
**Last updated:** [20 June 2021 16:00 UTC](https://discourse.nodered.org/t/node-red-telegram-function-to-get-a-channel-id/47400 "2021-06-20T16:00:59Z")

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hello is there a way with a Node Red Telegram Node to request a Channel ID, Channel not the bot id! have a nice day vinc

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## [Function: division by 0](https://discourse.nodered.org/t/function-division-by-0/47365)

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**Author:** [@Crashy77](https://discourse.nodered.org/u/Crashy77)\
**Replies:** 30\
**Last updated:** [20 June 2021 14:42 UTC](https://discourse.nodered.org/t/function-division-by-0/47365 "2021-06-20T14:42:09Z")

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I´m pretty new in Node-Red, but all I´ve done till now is working fine. Sometimes it´s easy to understand how it´s working, but now I´m having a problem with division by 0. My solution is working, but it must give a be…

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## [Turn payload numbers into integer](https://discourse.nodered.org/t/turn-payload-numbers-into-integer/47399)

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**Author:** [@RonMa](https://discourse.nodered.org/u/RonMa)\
**Replies:** 3\
**Last updated:** [20 June 2021 13:40 UTC](https://discourse.nodered.org/t/turn-payload-numbers-into-integer/47399 "2021-06-20T13:40:33Z")

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Hi everyone, I probably have a really simple request - here is the use case. I receive temperature values ​​from my sensors, which I can call up through Alexa when needed. The problem now is, that these values have two …

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## [Writing data to an external website](https://discourse.nodered.org/t/writing-data-to-an-external-website/47310)

<div class="topic-metadata">

**Author:** [@Tanglefoot](https://discourse.nodered.org/u/Tanglefoot)\
**Replies:** 11\
**Last updated:** [20 June 2021 12:37 UTC](https://discourse.nodered.org/t/writing-data-to-an-external-website/47310 "2021-06-20T12:37:06Z")

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First I should say I'm a beginner and just finding my way around node-red I have written a flow which reads data (messages) from a udp port and after some filtering then displays them in a table on the UI dashboard - th…

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