# Latest

**URL:** https://discourse.nodered.org/latest.md?page=387

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

**Page:** 388

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## [Flexdash edit mode disappeared](https://discourse.nodered.org/t/flexdash-edit-mode-disappeared/75924)

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**Author:** [@cscheidl](https://discourse.nodered.org/u/cscheidl)\
**Replies:** 3\
**Last updated:** [1 March 2023 14:15 UTC](https://discourse.nodered.org/t/flexdash-edit-mode-disappeared/75924 "2023-03-01T14:15:02Z")

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Good day to all... I'm trying to use flexdash and node-red to develop a user interface to watch and control a lot of customer sensors/actors. The flows got quite complicated now... After some time, I noticed, that the …

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## [Node-Red to PostgreSQL](https://discourse.nodered.org/t/node-red-to-postgresql/75926)

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**Author:** [@Chrolloo123](https://discourse.nodered.org/u/Chrolloo123)\
**Replies:** 7\
**Last updated:** [1 March 2023 11:45 UTC](https://discourse.nodered.org/t/node-red-to-postgresql/75926 "2023-03-01T11:45:28Z")

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I just recently used Node-red. I created a function that can save to local postgres using node-red-contrib-postgres-multi package I have a data from my mqtt client: msg.topic = 'data' msg.payload = \[ …

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## [Net Atmo login - how to connect?](https://discourse.nodered.org/t/net-atmo-login-how-to-connect/75756)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 14\
**Last updated:** [1 March 2023 13:42 UTC](https://discourse.nodered.org/t/net-atmo-login-how-to-connect/75756 "2023-03-01T13:42:12Z")

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Since a few years I am using node-red-contrib-netatmo-dashboard. Today I updated the node and found out, that the login does not work anymore. It seems that Net Atmo has changed the Authentification process. With my C…

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## [Node-RED-Contrib-OPCUA server not running](https://discourse.nodered.org/t/node-red-contrib-opcua-server-not-running/74434)

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**Author:** [@FabioT](https://discourse.nodered.org/u/FabioT)\
**Replies:** 5\
**Last updated:** [1 March 2023 13:27 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-server-not-running/74434 "2023-03-01T13:27:05Z")

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Hi All, I have a Node-RED application developed on a Win10 system where node-red-contrib-opcua (v0.2.257) nodes are used to create an OPCUA server using OPCUA-Server node. Since the beginning of the application develop…

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## [Value out of range](https://discourse.nodered.org/t/value-out-of-range/75876)

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**Author:** [@gopinath.m](https://discourse.nodered.org/u/gopinath.m)\
**Replies:** 1\
**Last updated:** [1 March 2023 12:30 UTC](https://discourse.nodered.org/t/value-out-of-range/75876 "2023-03-01T12:30:31Z")

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Hi I am receiving some messages from azure cloud and converting them into JSON Object .but sometimes i am getting below error,can anyone guide me how to solve this issue. \[error\] RangeError: The value of "value" is out …

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## [MIN/MAX from mqtt](https://discourse.nodered.org/t/min-max-from-mqtt/75832)

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**Author:** [@mra2ko](https://discourse.nodered.org/u/mra2ko)\
**Replies:** 12\
**Last updated:** [1 March 2023 10:50 UTC](https://discourse.nodered.org/t/min-max-from-mqtt/75832 "2023-03-01T10:50:08Z")

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Hi, we have some sensors, whitch send data to mqtt. So and we like show min/max value after last 24h in LCD. Import from MQTT - make min and max values in last 24h and back send separately (2 values min and max) sent bac…

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## [Do Node-red MQTT nodes and CLI mosquitto\_pub interfere with each other?](https://discourse.nodered.org/t/do-node-red-mqtt-nodes-and-cli-mosquitto-pub-interfere-with-each-other/75837)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 5\
**Last updated:** [1 March 2023 09:20 UTC](https://discourse.nodered.org/t/do-node-red-mqtt-nodes-and-cli-mosquitto-pub-interfere-with-each-other/75837 "2023-03-01T09:20:36Z")

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I'm using Node-red MQTT nodes on two Raspberry Pies as well as publishing at intervals with mosquitto\_pub in a shell script. I keep seeing status Disconnected in Node-red and I suspect that when the command line connect…

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## [ADS Client connection to Twincat 3](https://discourse.nodered.org/t/ads-client-connection-to-twincat-3/75870)

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**Author:** [@ALIEN](https://discourse.nodered.org/u/ALIEN)\
**Replies:** 6\
**Last updated:** [1 March 2023 09:17 UTC](https://discourse.nodered.org/t/ads-client-connection-to-twincat-3/75870 "2023-03-01T09:17:10Z")

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Dear All, Hi, I am trying to stablish a connection between Beckhoff PLC and node red! I followed the instructure written here but I couldn't succeed! I would appreciate it if you help me to know what is missed in c…

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## [Node-red-contrib-createrandom - Create random data for testing and more](https://discourse.nodered.org/t/node-red-contrib-createrandom-create-random-data-for-testing-and-more/75057)

<div class="topic-metadata">

**Author:** [@Vahdettin](https://discourse.nodered.org/u/Vahdettin)\
**Replies:** 6\
**Last updated:** [1 March 2023 09:06 UTC](https://discourse.nodered.org/t/node-red-contrib-createrandom-create-random-data-for-testing-and-more/75057 "2023-03-01T09:06:41Z")

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If you need to generate test data for your flows, node-red-contrib-createrandom might be able to help. It can create random values using customizable generators. Any customizations can be set on the pallette or by inc…

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## [Npm install not working for only this node](https://discourse.nodered.org/t/npm-install-not-working-for-only-this-node/75824)

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**Author:** [@Giacomo23](https://discourse.nodered.org/u/Giacomo23)\
**Replies:** 14\
**Last updated:** [1 March 2023 08:39 UTC](https://discourse.nodered.org/t/npm-install-not-working-for-only-this-node/75824 "2023-03-01T08:39:37Z")

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i'm try install cast for node red using this comand: npm install node-red-contrib-cast but i have this error: npm WARN deprecated querystring@0.2.1: The querystring API is considered Legacy. new code sh …

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## [Aedes MQTT and Clients' IP address](https://discourse.nodered.org/t/aedes-mqtt-and-clients-ip-address/75902)

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**Author:** [@calixtoemilio](https://discourse.nodered.org/u/calixtoemilio)\
**Replies:** 2\
**Last updated:** [1 March 2023 08:20 UTC](https://discourse.nodered.org/t/aedes-mqtt-and-clients-ip-address/75902 "2023-03-01T08:20:50Z")

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status message from the node/clients would not show clients' IP addresses Is there anyway to see that?

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## [Auto on - time limited switch](https://discourse.nodered.org/t/auto-on-time-limited-switch/75873)

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**Author:** [@bluescreentt](https://discourse.nodered.org/u/bluescreentt)\
**Replies:** 4\
**Last updated:** [1 March 2023 06:17 UTC](https://discourse.nodered.org/t/auto-on-time-limited-switch/75873 "2023-03-01T06:17:43Z")

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Hi not sure i'm in the right forum but ill try i am trying to automate a ventilation motor on the roof. i want it to be auto on. between 06:00 and 22:00 in this period i want to be able to turn it off for X time and…

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## [Get URL information in flow](https://discourse.nodered.org/t/get-url-information-in-flow/75909)

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**Author:** [@arminder.lubana](https://discourse.nodered.org/u/arminder.lubana)\
**Replies:** 0\
**Last updated:** [1 March 2023 04:56 UTC](https://discourse.nodered.org/t/get-url-information-in-flow/75909 "2023-03-01T04:56:45Z")

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Hi, Suppose we have configured Node Red editor as https://abc.com (just example) and i want to access this url(https://abc.com) in my flows. How i can get this information without hard coding the URL ? Thanks Arminder…

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## [Oauth2 Node error](https://discourse.nodered.org/t/oauth2-node-error/75898)

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**Author:** [@Byteman](https://discourse.nodered.org/u/Byteman)\
**Replies:** 2\
**Last updated:** [28 February 2023 23:43 UTC](https://discourse.nodered.org/t/oauth2-node-error/75898 "2023-02-28T23:43:52Z")

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Hello, I am trying to use Node-Red-contrib-oauth2 following their example. I imported their example nodes and I am running the second flow. I changed all the parameters accordingly as per instructions in d…

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## [No frame when I debug socketcan out](https://discourse.nodered.org/t/no-frame-when-i-debug-socketcan-out/75867)

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**Author:** [@David321](https://discourse.nodered.org/u/David321)\
**Replies:** 1\
**Last updated:** [28 February 2023 23:05 UTC](https://discourse.nodered.org/t/no-frame-when-i-debug-socketcan-out/75867 "2023-02-28T23:05:19Z")

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Hello, I'm working on a project that uses the socketcan out, to visualize frames coming from a BMS (Battery Management System). So far when I debugged the socketcan out I was able to see the frames, but due to a problem…

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## [SNMP v3 node-red-node-snmp](https://discourse.nodered.org/t/snmp-v3-node-red-node-snmp/17639)

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**Author:** [@johnsteeleFarm](https://discourse.nodered.org/u/johnsteeleFarm)\
**Replies:** 31\
**Last updated:** [28 February 2023 23:02 UTC](https://discourse.nodered.org/t/snmp-v3-node-red-node-snmp/17639 "2023-02-28T23:02:45Z")

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Hi, I am currently using node-red-node-snmp at work but have been told that to meet new security requirements I will need to upgrade to SNMP v3. Is this something that would be possible and would there be anyone willing …

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## [Design requirements for nodes and their connection types](https://discourse.nodered.org/t/design-requirements-for-nodes-and-their-connection-types/75889)

<div class="topic-metadata">

**Author:** [@eric-cooper](https://discourse.nodered.org/u/eric-cooper)\
**Replies:** 6\
**Last updated:** [28 February 2023 22:12 UTC](https://discourse.nodered.org/t/design-requirements-for-nodes-and-their-connection-types/75889 "2023-02-28T22:12:59Z")

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Are there design requirements (some metadata) that describe the kinds of input and output connections that the node supports? For example, how do I specify that node input must be a number? or RTSP? More specifically, …

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## [I2C communication Raspberry with Waveshare Triac HAT - not working with node-red-contribute-i2c (i2c out)](https://discourse.nodered.org/t/i2c-communication-raspberry-with-waveshare-triac-hat-not-working-with-node-red-contribute-i2c-i2c-out/75887)

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**Author:** [@Piet31](https://discourse.nodered.org/u/Piet31)\
**Replies:** 0\
**Last updated:** [28 February 2023 19:31 UTC](https://discourse.nodered.org/t/i2c-communication-raspberry-with-waveshare-triac-hat-not-working-with-node-red-contribute-i2c-i2c-out/75887 "2023-02-28T19:31:34Z")

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Hi, I have connected a Wavshare Triac HAT to my RPi4 with which I want to communicate by I2C to control an AC pump. With i2cdetect -y 1 I can see the Triac HAT at address 0x47 (71dec). The documentation (https://www.wa…

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## [Advice needed: Using a timestamp to send a filename result to an email flow](https://discourse.nodered.org/t/advice-needed-using-a-timestamp-to-send-a-filename-result-to-an-email-flow/74879)

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**Author:** [@phpurdon](https://discourse.nodered.org/u/phpurdon)\
**Replies:** 10\
**Last updated:** [28 February 2023 18:26 UTC](https://discourse.nodered.org/t/advice-needed-using-a-timestamp-to-send-a-filename-result-to-an-email-flow/74879 "2023-02-28T18:26:14Z")

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Folks, need some advice on logic please. I am working on a flow to email a filename once daily. A inject with a time recurrence is my trigger: msg.payload The source is the filename being written to (appending data in…

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## [Problem parsing flow variables to write to influx DB](https://discourse.nodered.org/t/problem-parsing-flow-variables-to-write-to-influx-db/75697)

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**Author:** [@NewToNodeRed](https://discourse.nodered.org/u/NewToNodeRed)\
**Replies:** 7\
**Last updated:** [28 February 2023 18:12 UTC](https://discourse.nodered.org/t/problem-parsing-flow-variables-to-write-to-influx-db/75697 "2023-02-28T18:12:45Z")

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Hello All, As my name implies I am new to coding with Node Red and am trying to use it to track high and low temps from my home weather station. I want to write the data to the InfluxDB measurement (table) one per day s…

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## [Bookmark page with reachability verification](https://discourse.nodered.org/t/bookmark-page-with-reachability-verification/75728)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 14\
**Last updated:** [28 February 2023 17:53 UTC](https://discourse.nodered.org/t/bookmark-page-with-reachability-verification/75728 "2023-02-28T17:53:45Z")

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I wanted a clean bookmark page for my internal webpages that also verifies if the pages are reachable (ie. servers are running). This flow will produce a responsive endpoint on http://\<node-red-host:port\>/bookmarks that…

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## [Node-red-contrib-oled sh1106 fuzzy image (just random pixels)](https://discourse.nodered.org/t/node-red-contrib-oled-sh1106-fuzzy-image-just-random-pixels/74080)

<div class="topic-metadata">

**Author:** [@Yusuf](https://discourse.nodered.org/u/Yusuf)\
**Replies:** 8\
**Last updated:** [28 February 2023 17:44 UTC](https://discourse.nodered.org/t/node-red-contrib-oled-sh1106-fuzzy-image-just-random-pixels/74080 "2023-02-28T17:44:39Z")

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Hi, I have installed the node-red-contrib-oled and tried to show something on sh1106 type oled screen but i see just random pixels. When i run the display by a phyton code like luma.oled webpage (Python usage — Luma.OLE…

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## [OPC UA gerando aviso "warning: properties like messageType, namespace, variableName or VariableValue is missing."](https://discourse.nodered.org/t/opc-ua-gerando-aviso-warning-properties-like-messagetype-namespace-variablename-or-variablevalue-is-missing/74598)

<div class="topic-metadata">

**Author:** [@tyga](https://discourse.nodered.org/u/tyga)\
**Replies:** 3\
**Last updated:** [28 February 2023 17:28 UTC](https://discourse.nodered.org/t/opc-ua-gerando-aviso-warning-properties-like-messagetype-namespace-variablename-or-variablevalue-is-missing/74598 "2023-02-28T17:28:08Z")

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Oi, Estou tentando fazer um projeto onde ao coletar um dado via modbus, esse dado seja fornecido em um sistema via OPCUA. Já consegui fazer a coleta do dado e fornecer via OPCUA, porém no nodered fica gerando o aviso: "…

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## [Control charging for Tesla](https://discourse.nodered.org/t/control-charging-for-tesla/46542)

<div class="topic-metadata">

**Author:** [@Urs-Eppenberger](https://discourse.nodered.org/u/Urs-Eppenberger)\
**Replies:** 30\
**Last updated:** [28 February 2023 17:26 UTC](https://discourse.nodered.org/t/control-charging-for-tesla/46542 "2023-02-28T17:26:04Z")

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I've got a solar panel on my roof and a Tesla to charge. I'm monitoring the power generation and consumption since a while with node-red. Just discovered the node-red-contrib-tesla node. This was the start for quite a …

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## [Crashing Node Red - OPC UA Client Error](https://discourse.nodered.org/t/crashing-node-red-opc-ua-client-error/73820)

<div class="topic-metadata">

**Author:** [@matteovi](https://discourse.nodered.org/u/matteovi)\
**Replies:** 1\
**Last updated:** [28 February 2023 16:52 UTC](https://discourse.nodered.org/t/crashing-node-red-opc-ua-client-error/73820 "2023-02-28T16:52:44Z")

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Hi, I have an error with opc ua conncection. My Node-Red crash with this Error "Cannot read properties of undefined (readinf 'callback'). I'll attach a screen of the problem. How Can i Fix that?

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## [Node RED on Pico - why is it not working?](https://discourse.nodered.org/t/node-red-on-pico-why-is-it-not-working/74092)

<div class="topic-metadata">

**Author:** [@beg1nner](https://discourse.nodered.org/u/beg1nner)\
**Replies:** 8\
**Last updated:** [28 February 2023 16:46 UTC](https://discourse.nodered.org/t/node-red-on-pico-why-is-it-not-working/74092 "2023-02-28T16:46:57Z")

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Hi there, I'd like to know why my project isn't working. On my Raspberry Pi (4B) I've created a WIFI-accesspoint with RaspAP. My Pi should also work as a Node-RED-broker. After that I've connected a Raspberry Pi Pico …

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## [Node Red crashed](https://discourse.nodered.org/t/node-red-crashed/75840)

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**Author:** [@ChrisF](https://discourse.nodered.org/u/ChrisF)\
**Replies:** 8\
**Last updated:** [28 February 2023 16:32 UTC](https://discourse.nodered.org/t/node-red-crashed/75840 "2023-02-28T16:32:10Z")

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Hello all, a small or big problem. I have installed a package under NodeRed. After that the porgram is crashed and is no longer reachable under the IP:1880. Also the dashboard is not. Is it still possible to save the …

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## [Modbus physical wiring cat 6](https://discourse.nodered.org/t/modbus-physical-wiring-cat-6/75833)

<div class="topic-metadata">

**Author:** [@znetsixe](https://discourse.nodered.org/u/znetsixe)\
**Replies:** 9\
**Last updated:** [28 February 2023 15:53 UTC](https://discourse.nodered.org/t/modbus-physical-wiring-cat-6/75833 "2023-02-28T15:53:45Z")

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Hoping to pick your brains. First time working with rs485 modbus and was wondering if some1 could share the way you can easy and properly daisy chain / plug cat6 cable into connectors like the picture below. Using cabl…

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## [Discussion about finding help in NR documentation](https://discourse.nodered.org/t/discussion-about-finding-help-in-nr-documentation/75868)

<div class="topic-metadata">

**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 10\
**Last updated:** [28 February 2023 11:12 UTC](https://discourse.nodered.org/t/discussion-about-finding-help-in-nr-documentation/75868 "2023-02-28T11:12:57Z")

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A different topic expanded into a discussion about how users can find information in the NR documentation, so moved here in it's own thread. The specific subject was finding how to use the 'safe' mode.

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## [HTTP endpoint creation problem](https://discourse.nodered.org/t/http-endpoint-creation-problem/75875)

<div class="topic-metadata">

**Author:** [@Acii](https://discourse.nodered.org/u/Acii)\
**Replies:** 6\
**Last updated:** [28 February 2023 15:45 UTC](https://discourse.nodered.org/t/http-endpoint-creation-problem/75875 "2023-02-28T15:45:24Z")

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Hello everyone, I explain the context, it is very simple to understand, I have a flow that compares two numerical variables, these values come from an HTTP request. Depending on the values of the two numeric variable…

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