# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=600

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

**Page:** 601

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## [If it was on function](https://discourse.nodered.org/t/if-it-was-on-function/41252)

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**Author:** [@D0bby](https://discourse.nodered.org/u/D0bby)\
**Replies:** 10\
**Last updated:** [20 February 2021 21:26 UTC](https://discourse.nodered.org/t/if-it-was-on-function/41252 "2021-02-20T21:26:25Z")

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Hey I'm trying a flow for my Hallway with an Motion Sensor and Lumination Sensor. It works pretty well with one tiny issue. If the light turns off and I join the hallway 1 sec later -nothing happens because my Luminati…

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## [Update Nodered 1.0.6](https://discourse.nodered.org/t/update-nodered-1-0-6/41128)

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**Author:** [@Renaudp](https://discourse.nodered.org/u/Renaudp)\
**Replies:** 14\
**Last updated:** [20 February 2021 20:50 UTC](https://discourse.nodered.org/t/update-nodered-1-0-6/41128 "2021-02-20T20:50:33Z")

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Hello, I have updated nodered on a Raspberry 4 without any problem (1.0.6 to 1.2.9), following the method describe here. On a Raspberry 3, installed the same way as the 4, the command bash \<(curl -sL https://raw.github…

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## [Node RED on Synology Docker - acces rights](https://discourse.nodered.org/t/node-red-on-synology-docker-acces-rights/40531)

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**Author:** [@Peto](https://discourse.nodered.org/u/Peto)\
**Replies:** 1\
**Last updated:** [20 February 2021 20:48 UTC](https://discourse.nodered.org/t/node-red-on-synology-docker-acces-rights/40531 "2021-02-20T20:48:33Z")

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Hi, I have node red on some raspberrys working well. To have more security of data I wanted to move on synology NAS under docker. I tried both nodered/node-red-docker:0.20.8 and also nodered/node-red:latest Few second…

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## [About mysql node? Does it do a reverse lookup at any point?](https://discourse.nodered.org/t/about-mysql-node-does-it-do-a-reverse-lookup-at-any-point/41360)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [20 February 2021 18:54 UTC](https://discourse.nodered.org/t/about-mysql-node-does-it-do-a-reverse-lookup-at-any-point/41360 "2021-02-20T18:54:19Z")

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In DNS, I have a database server referenced by D.domain and X.domain names. DNS has A records for X.domain device that qualifies both eth0 and wlan0 interfaces which are different IPs, an IP specific to each network typ…

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## [Merge incoming tcp msg to a max of 5 lines](https://discourse.nodered.org/t/merge-incoming-tcp-msg-to-a-max-of-5-lines/41325)

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**Author:** [@lumijb](https://discourse.nodered.org/u/lumijb)\
**Replies:** 5\
**Last updated:** [20 February 2021 16:57 UTC](https://discourse.nodered.org/t/merge-incoming-tcp-msg-to-a-max-of-5-lines/41325 "2021-02-20T16:57:48Z")

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Hello community, Obligatory I am very green in node-red, but I am loving every second of it. I am currently building an interface that receives intermittent TCP-IN messages, such as this: 19h12m55.301s : XX 3 CMD INPU…

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## [Pallete list to text?](https://discourse.nodered.org/t/pallete-list-to-text/40938)

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**Author:** [@ncherry](https://discourse.nodered.org/u/ncherry)\
**Replies:** 8\
**Last updated:** [20 February 2021 16:19 UTC](https://discourse.nodered.org/t/pallete-list-to-text/40938 "2021-02-20T16:19:10Z")

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Through no fault of my own (yea, right) I find I need to get the Pallete list so I can install all the nodes on another machine. Is there an easy way to get the pallete? Is it as simple as this (from the command line): $…

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## [From ncat to "tcp nodes"](https://discourse.nodered.org/t/from-ncat-to-tcp-nodes/41236)

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**Author:** [@esea](https://discourse.nodered.org/u/esea)\
**Replies:** 5\
**Last updated:** [20 February 2021 13:31 UTC](https://discourse.nodered.org/t/from-ncat-to-tcp-nodes/41236 "2021-02-20T13:31:29Z")

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Hi all, To communicate informations to a server I use cron and ncat as below : printf "MY MESSAGE HERE" | ncat HOST PORT You understood me : today I wish to be able to do it from NodeRed ... but I am still unable to…

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## [Issues with quotation marks](https://discourse.nodered.org/t/issues-with-quotation-marks/41335)

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**Author:** [@dan560](https://discourse.nodered.org/u/dan560)\
**Replies:** 7\
**Last updated:** [20 February 2021 12:35 UTC](https://discourse.nodered.org/t/issues-with-quotation-marks/41335 "2021-02-20T12:35:15Z")

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Hey guys, I can successfully run this call service in home assistant, however node-red seems to be having issues with the " " { "filename": "/config/www/cctv/ground\_floor/{{ now().strftime('%Y%m%d') }}/gl\_{{ now().…

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## [Need help refactoring a flow](https://discourse.nodered.org/t/need-help-refactoring-a-flow/41315)

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**Author:** [@kintorres](https://discourse.nodered.org/u/kintorres)\
**Replies:** 1\
**Last updated:** [20 February 2021 12:33 UTC](https://discourse.nodered.org/t/need-help-refactoring-a-flow/41315 "2021-02-20T12:33:52Z")

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Hi everyone! I am starting learning how to use Node Red in my home automations. I made a flow to do some interaction between HomeAssistant automation and user, but i think the flow that i created is't the best way to do.…

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## [Please Help! SSL , Let's Encrypt , digitalOcean , Https , 443](https://discourse.nodered.org/t/please-help-ssl-lets-encrypt-digitalocean-https-443/41278)

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**Author:** [@bigboxth](https://discourse.nodered.org/u/bigboxth)\
**Replies:** 3\
**Last updated:** [20 February 2021 12:28 UTC](https://discourse.nodered.org/t/please-help-ssl-lets-encrypt-digitalocean-https-443/41278 "2021-02-20T12:28:56Z")

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Hi All I am newbie I'm trying to configure my node-red server. I follow tutorial in this : Node-red server with nginx reverse proxy howto guide - FAQs - Node-RED Forum and some websites on internet/ this is what I co…

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## [Access control to NodeRed](https://discourse.nodered.org/t/access-control-to-nodered/41218)

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**Author:** [@mariulin](https://discourse.nodered.org/u/mariulin)\
**Replies:** 6\
**Last updated:** [20 February 2021 12:05 UTC](https://discourse.nodered.org/t/access-control-to-nodered/41218 "2021-02-20T12:05:23Z")

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Hi everybody. I have this kind of question. If I set NodeRed that is using HTTPS and protect access whith a password, is possible to discover failed attempt to enter in? Now I have all behind a VPN, but is a little bit …

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## [Alternativ to Watch node, to look at a folder on a local NAS](https://discourse.nodered.org/t/alternativ-to-watch-node-to-look-at-a-folder-on-a-local-nas/41243)

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**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 2\
**Last updated:** [20 February 2021 12:01 UTC](https://discourse.nodered.org/t/alternativ-to-watch-node-to-look-at-a-folder-on-a-local-nas/41243 "2021-02-20T12:01:35Z")

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Hi Is it possible to use the "Watch" node to look at a folder on a local NAS or an alternativ Node that can look at the folder \\172.x.x.x\\images\\saved\\foran\\ is there is any changes to the folder? And if there is, then…

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## [ModBus on two USB - RS485 adapeters on Pi](https://discourse.nodered.org/t/modbus-on-two-usb-rs485-adapeters-on-pi/41338)

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**Author:** [@swanside](https://discourse.nodered.org/u/swanside)\
**Replies:** 3\
**Last updated:** [20 February 2021 11:02 UTC](https://discourse.nodered.org/t/modbus-on-two-usb-rs485-adapeters-on-pi/41338 "2021-02-20T11:02:03Z")

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Hi all. Just a quick one, I have an MPPT Solar charger and a OB115-Mod meter. Both are set to ID1, so while I am waiting for a lead so I can change the address of the MPPT controller to ID2, I have put in a second USB-RS…

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## [Error when installing node](https://discourse.nodered.org/t/error-when-installing-node/41329)

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**Author:** [@MJS](https://discourse.nodered.org/u/MJS)\
**Replies:** 2\
**Last updated:** [20 February 2021 06:50 UTC](https://discourse.nodered.org/t/error-when-installing-node/41329 "2021-02-20T06:50:53Z")

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Hi all, I'm trying to install the zwave-js node and I get an error each time. I'm running Node-RED on Rpi4 via Home Assistant. Error Logs: 2021-02-20T01:11:20.117Z Install : node-red-contrib-zwave-js 1.4.0 2021-0…

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## [Error while inserting uuid into sqlite3 in express](https://discourse.nodered.org/t/error-while-inserting-uuid-into-sqlite3-in-express/41302)

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**Author:** [@jackcarver12](https://discourse.nodered.org/u/jackcarver12)\
**Replies:** 6\
**Last updated:** [19 February 2021 19:04 UTC](https://discourse.nodered.org/t/error-while-inserting-uuid-into-sqlite3-in-express/41302 "2021-02-19T19:04:54Z")

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I required an error while inserting this dataset in my database: I am programing on express/node.js this.db.run("INSERT INTO bestellung(rid,bid,tableno,drink,price,validation) VALUES(\`"+ridJSON.id+"\`,\`"+bidJSON.id+"\`,"+…

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## [Serving my own catalog via Node-RED](https://discourse.nodered.org/t/serving-my-own-catalog-via-node-red/41040)

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**Author:** [@nlecaude](https://discourse.nodered.org/u/nlecaude)\
**Replies:** 15\
**Last updated:** [19 February 2021 19:06 UTC](https://discourse.nodered.org/t/serving-my-own-catalog-via-node-red/41040 "2021-02-19T19:06:38Z")

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Hello, I'm working on my own Docker image and would like to have a custom node catalog available. Ideally I'd like to host that catalog myself from within Node-RED. Is there some way I could access RED.httpAdmin from w…

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## [NR UI no longer comes up, red.js file corrupted?](https://discourse.nodered.org/t/nr-ui-no-longer-comes-up-red-js-file-corrupted/41246)

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**Author:** [@justin](https://discourse.nodered.org/u/justin)\
**Replies:** 2\
**Last updated:** [19 February 2021 18:54 UTC](https://discourse.nodered.org/t/nr-ui-no-longer-comes-up-red-js-file-corrupted/41246 "2021-02-19T18:54:31Z")

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Hi. I have been using node red for a little while now, have a bunch of flows and custom developed nodes, etc. This morning all of a sudden the UI on a particular machine stopped loading. If I open the developer console I…

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## [Cant start after reboot](https://discourse.nodered.org/t/cant-start-after-reboot/41312)

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**Author:** [@saulcereto](https://discourse.nodered.org/u/saulcereto)\
**Replies:** 2\
**Last updated:** [19 February 2021 17:31 UTC](https://discourse.nodered.org/t/cant-start-after-reboot/41312 "2021-02-19T17:31:54Z")

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I have node red install in raspberri pi with openhabian with no issues in the last year but...... After reboot node red is not starting. I tried to start as a service and dont start neither The only way to start is doi…

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## [Virtual Keyboard a little help please](https://discourse.nodered.org/t/virtual-keyboard-a-little-help-please/39873)

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**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\
**Replies:** 28\
**Last updated:** [19 February 2021 17:22 UTC](https://discourse.nodered.org/t/virtual-keyboard-a-little-help-please/39873 "2021-02-19T17:22:22Z")

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Hi everyone, I am using the Virtual Keyboard as modified by @hugobox and shared on Node-Red flows. I have sent @hugobox a message but as yet no reply. link to node I'm trying to modify it to display the text that has…

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## [Write group of data to Influxdb](https://discourse.nodered.org/t/write-group-of-data-to-influxdb/41248)

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**Author:** [@davidz](https://discourse.nodered.org/u/davidz)\
**Replies:** 14\
**Last updated:** [19 February 2021 16:13 UTC](https://discourse.nodered.org/t/write-group-of-data-to-influxdb/41248 "2021-02-19T16:13:40Z")

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Is there a way to write an array of data set to Influxdb efficiently, but give each data set a different time stamp? For example, I have the following array of size 5, and I want to write them to influxdb and give them d…

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## [Totalizer difference example](https://discourse.nodered.org/t/totalizer-difference-example/40949)

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**Author:** [@bkenobi](https://discourse.nodered.org/u/bkenobi)\
**Replies:** 31\
**Last updated:** [19 February 2021 16:13 UTC](https://discourse.nodered.org/t/totalizer-difference-example/40949 "2021-02-19T16:13:25Z")

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I have a couple sensors that return a running sum of usage (power meter, rain gauge) and I need to split it out for calculating period based usage. This is a common question I've seen posted in various places, but the c…

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## [Dynamically sending MQTT Messages from Object Array](https://discourse.nodered.org/t/dynamically-sending-mqtt-messages-from-object-array/41297)

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**Author:** [@quentinP](https://discourse.nodered.org/u/quentinP)\
**Replies:** 8\
**Last updated:** [19 February 2021 14:38 UTC](https://discourse.nodered.org/t/dynamically-sending-mqtt-messages-from-object-array/41297 "2021-02-19T14:38:58Z")

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I have an array of objects stored in msg.myRecipes\[\] collected from an SQL query. From this array I am retreiving data to create a topic and a payload to send to the broker. Each row corresponds to a message sent over a …

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## [Serial String combine](https://discourse.nodered.org/t/serial-string-combine/41288)

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**Author:** [@Schnigge5](https://discourse.nodered.org/u/Schnigge5)\
**Replies:** 9\
**Last updated:** [19 February 2021 14:08 UTC](https://discourse.nodered.org/t/serial-string-combine/41288 "2021-02-19T14:08:49Z")

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Hi there. I'm too stupid for that shit :crazy\_face: I read out the serial Interface and get every 0,01s a ASCII-String with 8 HEX Values. Now I have to modify some of the Values because its ASCII and there is an '=' f…

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## [BigSSH, odd behavior with Win10 OpenSSH Server?](https://discourse.nodered.org/t/bigssh-odd-behavior-with-win10-openssh-server/40713)

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**Author:** [@westek](https://discourse.nodered.org/u/westek)\
**Replies:** 11\
**Last updated:** [19 February 2021 12:42 UTC](https://discourse.nodered.org/t/bigssh-odd-behavior-with-win10-openssh-server/40713 "2021-02-19T12:42:27Z")

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I have OpenSSH installed on multiple Win10 workstations. I use BigSSH to issue remote WOL commands on a Samba PDC with no problem. But as soon as I attempt to issue remote SSH commands to the Windows workstations, I get …

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## [Command design pattern](https://discourse.nodered.org/t/command-design-pattern/35461)

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**Author:** [@r0ller](https://discourse.nodered.org/u/r0ller)\
**Replies:** 3\
**Last updated:** [19 February 2021 12:08 UTC](https://discourse.nodered.org/t/command-design-pattern/35461 "2021-02-19T12:08:04Z")

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Hi All, I've been using node red for a while now and just like others (see: https://discourse.nodered.org/t/guidelines-and-design-principles-for-node-red-users/7238 ) I also pondered about some design principles accordi…

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## [Timestamp conversion going wrong](https://discourse.nodered.org/t/timestamp-conversion-going-wrong/41110)

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**Author:** [@haskle](https://discourse.nodered.org/u/haskle)\
**Replies:** 6\
**Last updated:** [19 February 2021 11:42 UTC](https://discourse.nodered.org/t/timestamp-conversion-going-wrong/41110 "2021-02-19T11:42:16Z")

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I want to convert a json(?) timestamp from, eg, 1613498523 to "human readable"; I have tried using the moment node, but whatever output format I choose, the date is right but the time is always 00:00 (or 00:00:00) - whi…

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## [Latency on JSON schema validation with ajv module](https://discourse.nodered.org/t/latency-on-json-schema-validation-with-ajv-module/41289)

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**Author:** [@episensor](https://discourse.nodered.org/u/episensor)\
**Replies:** 2\
**Last updated:** [19 February 2021 11:16 UTC](https://discourse.nodered.org/t/latency-on-json-schema-validation-with-ajv-module/41289 "2021-02-19T11:16:27Z")

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Hi all, I'm importing the ajv module (for JSON schema validation) into NodeRED from npm to the GlobalContext as follows: functionGlobalContext = { ajv:require(/path/to/node\_modules/ajv'), and then using it in a f…

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## [MariaDB innodb Tablespace](https://discourse.nodered.org/t/mariadb-innodb-tablespace/41242)

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**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\
**Replies:** 1\
**Last updated:** [19 February 2021 10:56 UTC](https://discourse.nodered.org/t/mariadb-innodb-tablespace/41242 "2021-02-19T10:56:33Z")

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Hi Everyone, I'm on a very steep learning curve here. I know this is not a Node-Red issue just hoping someone on here may be able to answer my question. I understand most databasey things having been a Visual FoxPro d…

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## [\[OT\] Strange Arduino IDE problem](https://discourse.nodered.org/t/ot-strange-arduino-ide-problem/41247)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 5\
**Last updated:** [19 February 2021 10:50 UTC](https://discourse.nodered.org/t/ot-strange-arduino-ide-problem/41247 "2021-02-19T10:50:55Z")

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I know this isn't a node-red issue, but possibly someone here can help me out with a very odd issue. I am using the Arduino IDE to program a Wemos D1 Mini, which I have done before. I want it to have a fixed ip addres…

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## [Node-red last will message](https://discourse.nodered.org/t/node-red-last-will-message/41214)

<div class="topic-metadata">

**Author:** [@tetrived](https://discourse.nodered.org/u/tetrived)\
**Replies:** 8\
**Last updated:** [19 February 2021 10:35 UTC](https://discourse.nodered.org/t/node-red-last-will-message/41214 "2021-02-19T10:35:26Z")

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Hello All, We are trying to simulate lastwill message scenario using node-red tool. We configured lastwill topic and message in the message tab. We are trying to close the node-red command window but it seems it is alwa…

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