# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=754

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

**Page:** 755

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## [Slider node passing variable to trigger node](https://discourse.nodered.org/t/slider-node-passing-variable-to-trigger-node/26057)

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**Author:** [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Replies:** 6\
**Last updated:** [4 May 2020 14:30 UTC](https://discourse.nodered.org/t/slider-node-passing-variable-to-trigger-node/26057 "2020-05-04T14:30:12Z")

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Is it possible to send the value set by a slider node to a trigger node and at the same time start the trigger node. If it is possible, can I be directed to any examples of how to achieve this. Cheers

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## [TypeError: Cannot create property '\_id' on number](https://discourse.nodered.org/t/typeerror-cannot-create-property-id-on-number/26054)

<div class="topic-metadata">

**Author:** [@MoMo](https://discourse.nodered.org/u/MoMo)\
**Replies:** 3\
**Last updated:** [4 May 2020 12:48 UTC](https://discourse.nodered.org/t/typeerror-cannot-create-property-id-on-number/26054 "2020-05-04T12:48:04Z")

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Hi, i'm not very confident to Node-Red. I'm trying to save my date at mongodb, but i get this Type Error: This is my flow: Could it be possible, that i convert something wrong? Or do you have any ideas?

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## [Mqtt explorer with mqtt db](https://discourse.nodered.org/t/mqtt-explorer-with-mqtt-db/25868)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 12\
**Last updated:** [4 May 2020 12:14 UTC](https://discourse.nodered.org/t/mqtt-explorer-with-mqtt-db/25868 "2020-05-04T12:14:47Z")

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Can we somehow combine mqtt explorer with mqtt db, in order to store data directly on PC/server? Can we install mqtt explorer on win server 19?

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## [Simple if loop statement](https://discourse.nodered.org/t/simple-if-loop-statement/26056)

<div class="topic-metadata">

**Author:** [@MARAUDER2003](https://discourse.nodered.org/u/MARAUDER2003)\
**Replies:** 1\
**Last updated:** [4 May 2020 11:52 UTC](https://discourse.nodered.org/t/simple-if-loop-statement/26056 "2020-05-04T11:52:19Z")

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Hello, I'm very new to Node-Red, and I'm also very knew to programming. I'm currently using the function node to write the following: if (msg.payload.pi/11 === 0){ msg.payload = 1; } else { msg.payload = 2; } retu…

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## [Problems to get payload data to debug](https://discourse.nodered.org/t/problems-to-get-payload-data-to-debug/26038)

<div class="topic-metadata">

**Author:** [@Circuits](https://discourse.nodered.org/u/Circuits)\
**Replies:** 3\
**Last updated:** [4 May 2020 11:24 UTC](https://discourse.nodered.org/t/problems-to-get-payload-data-to-debug/26038 "2020-05-04T11:24:01Z")

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Hello greetings, Sorry this is my first contact with the nodered platform and I have been having this problem for three days, I already searched and did not find the information to solve this problem, I have already rea…

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## [Ftp to browse sub directories](https://discourse.nodered.org/t/ftp-to-browse-sub-directories/12189)

<div class="topic-metadata">

**Author:** [@oli.nodered](https://discourse.nodered.org/u/oli.nodered)\
**Replies:** 8\
**Last updated:** [4 May 2020 09:30 UTC](https://discourse.nodered.org/t/ftp-to-browse-sub-directories/12189 "2020-05-04T09:30:27Z")

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Bonjour i use the node red ftp node to List the directory on a server. it is ok for the root, i have got all informations. i have two directories and i want to browse now the sub directories and i didn't found the syn…

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## [2 columns on a table node red - influx db](https://discourse.nodered.org/t/2-columns-on-a-table-node-red-influx-db/25779)

<div class="topic-metadata">

**Author:** [@mtp211](https://discourse.nodered.org/u/mtp211)\
**Replies:** 7\
**Last updated:** [4 May 2020 05:46 UTC](https://discourse.nodered.org/t/2-columns-on-a-table-node-red-influx-db/25779 "2020-05-04T05:46:07Z")

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Hello, So I have this dashboard code bellow \[{"id":"c2e8e157.a11cc","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"8fd285ae.e97da8","type":"mosca in","z":"c2e8e157.a11cc","mqtt\_port":1883,"mqtt\_ws\_…

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## [Import data from text file to sqlite database?](https://discourse.nodered.org/t/import-data-from-text-file-to-sqlite-database/26019)

<div class="topic-metadata">

**Author:** [@asdf123](https://discourse.nodered.org/u/asdf123)\
**Replies:** 1\
**Last updated:** [3 May 2020 23:54 UTC](https://discourse.nodered.org/t/import-data-from-text-file-to-sqlite-database/26019 "2020-05-03T23:54:02Z")

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Hello, Can you help me with sqlite database? How can I import data from text file into sqlite database?

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## [Clipboard write](https://discourse.nodered.org/t/clipboard-write/7975)

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**Author:** [@fabnavigator](https://discourse.nodered.org/u/fabnavigator)\
**Replies:** 12\
**Last updated:** [3 May 2020 23:05 UTC](https://discourse.nodered.org/t/clipboard-write/7975 "2020-05-03T23:05:12Z")

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Anyone ever use the clipboard-write node? I've got a debug node hooked up in parallel that says msg.payload = "x", but when I paste from the clipboard it just gives me "payload".

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## [SQlite returning empty array on date range](https://discourse.nodered.org/t/sqlite-returning-empty-array-on-date-range/25949)

<div class="topic-metadata">

**Author:** [@teladia](https://discourse.nodered.org/u/teladia)\
**Replies:** 5\
**Last updated:** [3 May 2020 20:44 UTC](https://discourse.nodered.org/t/sqlite-returning-empty-array-on-date-range/25949 "2020-05-03T20:44:05Z")

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Hi to all, sorry if this question has been raised but I could find answer to my problem. I have a data base which has the following format: My problem is as follows: I have created separate graphs which will display…

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## [Check actual state](https://discourse.nodered.org/t/check-actual-state/25718)

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**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 10\
**Last updated:** [3 May 2020 19:58 UTC](https://discourse.nodered.org/t/check-actual-state/25718 "2020-05-03T19:58:57Z")

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Hi all! Im working in my home lights project and i want to achive the following. Im using sonoff with mqtt and homeassitant. All works fine!. With node-red im checking the actual state of my sonoff if it is ON or OFF.…

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## [How to identify an Unknown Node when importing a Flow?](https://discourse.nodered.org/t/how-to-identify-an-unknown-node-when-importing-a-flow/26007)

<div class="topic-metadata">

**Author:** [@G33RT](https://discourse.nodered.org/u/G33RT)\
**Replies:** 2\
**Last updated:** [3 May 2020 19:35 UTC](https://discourse.nodered.org/t/how-to-identify-an-unknown-node-when-importing-a-flow/26007 "2020-05-03T19:35:47Z")

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How to identify an missing Unknown Node when importing a Flow ? unknown: ui\_text unknown: ui\_chart unknown: ui\_gauge I have found the flow here: Efergy Energy Meter or Energyhive Api

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## [Why use MQTT with InfluxDB with sensors](https://discourse.nodered.org/t/why-use-mqtt-with-influxdb-with-sensors/5145)

<div class="topic-metadata">

**Author:** [@RoueSA](https://discourse.nodered.org/u/RoueSA)\
**Replies:** 5\
**Last updated:** [3 May 2020 17:16 UTC](https://discourse.nodered.org/t/why-use-mqtt-with-influxdb-with-sensors/5145 "2020-05-03T17:16:05Z")

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Hi I am trying to send my DS18B20 sensor data to InfluxDB and then use Grafana. I have seen a few examples to get this working, but they all use MQTT. Why is that? Is there no way to just send the data from the sensor t…

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## [One-shot mode for node-red?](https://discourse.nodered.org/t/one-shot-mode-for-node-red/25977)

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**Author:** [@jcims](https://discourse.nodered.org/u/jcims)\
**Replies:** 3\
**Last updated:** [3 May 2020 16:06 UTC](https://discourse.nodered.org/t/one-shot-mode-for-node-red/25977 "2020-05-03T16:06:02Z")

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Hi all, Thinking of some serverless use cases for node-red and am curious if anyone is running it to execute a single flow from content passed in and then exit. Basically a lambda-type use of the product?

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## [UI builder accessing msg.payload object](https://discourse.nodered.org/t/ui-builder-accessing-msg-payload-object/24725)

<div class="topic-metadata">

**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 4\
**Last updated:** [3 May 2020 15:14 UTC](https://discourse.nodered.org/t/ui-builder-accessing-msg-payload-object/24725 "2020-05-03T15:14:27Z")

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Can anyone explain how adding the msg.payload object to a variable works in ui builder. i read through the documenation and code, and i still hae no idea.

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## [Combine 2 payloads with Auto mode function and data](https://discourse.nodered.org/t/combine-2-payloads-with-auto-mode-function-and-data/25924)

<div class="topic-metadata">

**Author:** [@kevin](https://discourse.nodered.org/u/kevin)\
**Replies:** 4\
**Last updated:** [3 May 2020 15:07 UTC](https://discourse.nodered.org/t/combine-2-payloads-with-auto-mode-function-and-data/25924 "2020-05-03T15:07:41Z")

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Hi everyone, I'm new to Nodered, but i have played around with it for 2 days. I think i know some basic things. But i'm struggling with the following problems: I want to build a flow that can handle two separated outpu…

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## [Don't know how to use pcf8574 cluster node](https://discourse.nodered.org/t/dont-know-how-to-use-pcf8574-cluster-node/25992)

<div class="topic-metadata">

**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 3\
**Last updated:** [3 May 2020 13:11 UTC](https://discourse.nodered.org/t/dont-know-how-to-use-pcf8574-cluster-node/25992 "2020-05-03T13:11:06Z")

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In a python script i would write this: bus.write\_byte(0x20, 0x02) to send a command to a pin of the expansion board(PCF8574). How do you have to fill out the cluster node and the cluster configure to do the same?

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## [The end of Darksky?](https://discourse.nodered.org/t/the-end-of-darksky/24003)

<div class="topic-metadata">

**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 31\
**Last updated:** [3 May 2020 10:29 UTC](https://discourse.nodered.org/t/the-end-of-darksky/24003 "2020-05-03T10:29:41Z")

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Topic moved to it's own thread from https://discourse.nodered.org/t/the-end-of-weather-underground/409

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## [Aggregate using join node](https://discourse.nodered.org/t/aggregate-using-join-node/25975)

<div class="topic-metadata">

**Author:** [@dathor](https://discourse.nodered.org/u/dathor)\
**Replies:** 6\
**Last updated:** [3 May 2020 10:24 UTC](https://discourse.nodered.org/t/aggregate-using-join-node/25975 "2020-05-03T10:24:31Z")

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Hello, I am looking for any suggestions as to whether my approach to aggregating xml could be improved. Firstly, in a plc i am formatting data in xml and sending it out a tcp/ip socket. In my node-red app I am using t…

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## [DarkSky Weather no longer accepting new accounts](https://discourse.nodered.org/t/darksky-weather-no-longer-accepting-new-accounts/25967)

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**Author:** [@topcorner18](https://discourse.nodered.org/u/topcorner18)\
**Replies:** 1\
**Last updated:** [3 May 2020 00:39 UTC](https://discourse.nodered.org/t/darksky-weather-no-longer-accepting-new-accounts/25967 "2020-05-03T00:39:29Z")

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Went to sign-up for the DarkSky API and found the below message as of March 31, 2020 and it appears will cease to function in 2021. Recommended alternatives? Thank you TimC By Adam Grossman on March 31, 2020. Today…

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## [Read from text file?](https://discourse.nodered.org/t/read-from-text-file/25963)

<div class="topic-metadata">

**Author:** [@asdf123](https://discourse.nodered.org/u/asdf123)\
**Replies:** 3\
**Last updated:** [2 May 2020 23:29 UTC](https://discourse.nodered.org/t/read-from-text-file/25963 "2020-05-02T23:29:44Z")

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Hi, I'd like to ask for help on how to extract certain lines from a txt file. The text file is like: "attackComplexity" : "LOW",\\r\\n "privilegesRequired" : "NONE",\\r\\n "userInteraction" : "NONE",\\r\\n…

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## [Xiaomi BLE Sensor Temperature and Humitity](https://discourse.nodered.org/t/xiaomi-ble-sensor-temperature-and-humitity/25860)

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**Author:** [@McRMX](https://discourse.nodered.org/u/McRMX)\
**Replies:** 1\
**Last updated:** [2 May 2020 22:41 UTC](https://discourse.nodered.org/t/xiaomi-ble-sensor-temperature-and-humitity/25860 "2020-05-02T22:41:20Z")

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Hi, I have a raspberry with NODE-RED and Homebridge Node RED 1.0.6 NodeJS v14.1.0 (with npm 6.14.4 When I install the node "node-red-contrib-xiaomi-ble" I try to connect a Xiaomi Mijia Bluetooth Temperature Humidity…

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## [Dashboard button link to url](https://discourse.nodered.org/t/dashboard-button-link-to-url/25958)

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**Author:** [@micle](https://discourse.nodered.org/u/micle)\
**Replies:** 1\
**Last updated:** [2 May 2020 21:29 UTC](https://discourse.nodered.org/t/dashboard-button-link-to-url/25958 "2020-05-02T21:29:18Z")

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Hello guys. id like to link url using button, don't use template i dont find any way. help me finally, when i click to button(in dashboard button) ==\> open url(ex. google.com or others url)

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## [How to watch a Payload - Response when change](https://discourse.nodered.org/t/how-to-watch-a-payload-response-when-change/25950)

<div class="topic-metadata">

**Author:** [@Flixm](https://discourse.nodered.org/u/Flixm)\
**Replies:** 2\
**Last updated:** [2 May 2020 19:54 UTC](https://discourse.nodered.org/t/how-to-watch-a-payload-response-when-change/25950 "2020-05-02T19:54:59Z")

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Hi there, i'd like to get a response when a payload change to another (not known). In my case i´d like to send me a pushover Message when i get a new public IP adress ... is there a node to watch if there something cha…

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## [Http request keeps requesting, kills Node-RED server](https://discourse.nodered.org/t/http-request-keeps-requesting-kills-node-red-server/25854)

<div class="topic-metadata">

**Author:** [@cow\_n\_berg](https://discourse.nodered.org/u/cow_n_berg)\
**Replies:** 4\
**Last updated:** [2 May 2020 19:13 UTC](https://discourse.nodered.org/t/http-request-keeps-requesting-kills-node-red-server/25854 "2020-05-02T19:13:35Z")

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Hello, my http request keeps the status "requesting" and will eventually kill the Node-RED server on my Raspberry Pi. So far I built two other http request flows, to get data from websites. Those are running very happil…

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## [Door & Window sensor logic](https://discourse.nodered.org/t/door-window-sensor-logic/25911)

<div class="topic-metadata">

**Author:** [@StevenLangdale](https://discourse.nodered.org/u/StevenLangdale)\
**Replies:** 3\
**Last updated:** [2 May 2020 19:08 UTC](https://discourse.nodered.org/t/door-window-sensor-logic/25911 "2020-05-02T19:08:28Z")

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I'm trying to use Node-RED for some automation logic. Got a window sensor & door sensor and I want to trigger something when both are open (true) for x period of time. I'm currently using the and gate out of node-red-c…

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## [NR as Modbus TCP Server cannot write self register](https://discourse.nodered.org/t/nr-as-modbus-tcp-server-cannot-write-self-register/25928)

<div class="topic-metadata">

**Author:** [@17greesm](https://discourse.nodered.org/u/17greesm)\
**Replies:** 4\
**Last updated:** [2 May 2020 17:44 UTC](https://discourse.nodered.org/t/nr-as-modbus-tcp-server-cannot-write-self-register/25928 "2020-05-02T17:44:45Z")

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I am not able to write address from modbus write flex node. But I can easily write data from client side. Please Note: Node-Red is configured as Modbus TCP Server and used " node-red-contrib-modbus" \[{"id":"53780dc1.dc…

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## [How to read a string of Tagnames from a csv file](https://discourse.nodered.org/t/how-to-read-a-string-of-tagnames-from-a-csv-file/25925)

<div class="topic-metadata">

**Author:** [@Munier](https://discourse.nodered.org/u/Munier)\
**Replies:** 1\
**Last updated:** [2 May 2020 17:24 UTC](https://discourse.nodered.org/t/how-to-read-a-string-of-tagnames-from-a-csv-file/25925 "2020-05-02T17:24:32Z")

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Hello all Can you please help me on how I can read the string of the id as in the table below? I want to find a way to make the function node read the string for the id for example E01 to read as E01\_UA, E02 to read …

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## [New to Node Red and coding](https://discourse.nodered.org/t/new-to-node-red-and-coding/25902)

<div class="topic-metadata">

**Author:** [@MrDoggss](https://discourse.nodered.org/u/MrDoggss)\
**Replies:** 3\
**Last updated:** [2 May 2020 17:19 UTC](https://discourse.nodered.org/t/new-to-node-red-and-coding/25902 "2020-05-02T17:19:40Z")

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Hello all! Just getting started with Node Red, and I have a couple newbie questions. I'm using an Arduino with a simple LED blink flow. (Not my creation) The dashboard shows the state as true/ false. I've been messin…

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## [Mongodb aggregate data](https://discourse.nodered.org/t/mongodb-aggregate-data/25233)

<div class="topic-metadata">

**Author:** [@apex](https://discourse.nodered.org/u/apex)\
**Replies:** 1\
**Last updated:** [2 May 2020 16:20 UTC](https://discourse.nodered.org/t/mongodb-aggregate-data/25233 "2020-05-02T16:20:37Z")

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how can i aggregate the data in node red? i am using node-red-contrib-mongodb2 \[{"id":"a5d3fca9.1d6fb","type":"mongodb2 in","z":"17988aef.77ac65","service":"\_ext\_","configNode":"60e6b2b.5c7bc4c","name":"","collectio…

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