# Latest **URL:** https://discourse.nodered.org/latest.md?page=558 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 559 --- ## [OMRON-PLC read and write](https://discourse.nodered.org/t/omron-plc-read-and-write/61763)
**Author:** [@maliheh.amirfakhry](https://discourse.nodered.org/u/maliheh.amirfakhry)\ **Replies:** 10\ **Last updated:** [5 June 2022 10:56 UTC](https://discourse.nodered.org/t/omron-plc-read-and-write/61763 "2022-06-05T10:56:01Z")
Hi guys, I need to read and write data from an Omron-plc (CP1L) to a raspberry pi 4 with : 1- rs 232 to USB cable or 2- USB-b To USB or 3- rs232 to ethernet cable using node-red. Can you please help me? --- ## [Help! how deploy node-red to okteto cloud](https://discourse.nodered.org/t/help-how-deploy-node-red-to-okteto-cloud/63473)
**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\ **Replies:** 0\ **Last updated:** [5 June 2022 09:59 UTC](https://discourse.nodered.org/t/help-how-deploy-node-red-to-okteto-cloud/63473 "2022-06-05T09:59:57Z")
how deploy node-red to okteto pls --- ## [Enable a switch](https://discourse.nodered.org/t/enable-a-switch/63062)
**Author:** [@Nilpferd](https://discourse.nodered.org/u/Nilpferd)\ **Replies:** 4\ **Last updated:** [5 June 2022 09:07 UTC](https://discourse.nodered.org/t/enable-a-switch/63062 "2022-06-05T09:07:36Z")
I would like to start the power supply of a NAS with a switch. To avoid activating the switch by mistake I would like to attach another switch to enable the first one for i.e. 5 seconds. after the 5 seconds no more activ… --- ## [Error while implementing login with keycloak](https://discourse.nodered.org/t/error-while-implementing-login-with-keycloak/63466)
**Author:** [@CBianca](https://discourse.nodered.org/u/CBianca)\ **Replies:** 4\ **Last updated:** [5 June 2022 00:28 UTC](https://discourse.nodered.org/t/error-while-implementing-login-with-keycloak/63466 "2022-06-05T00:28:20Z")
Hello guys, I am trying to fix this for 4 hours now so I really hope you can help me... I am using keycloak as an Identity Provider to acces my editor. I modified my settings.js file as described in this post here. … --- ## [Value considered as UNDEFINED](https://discourse.nodered.org/t/value-considered-as-undefined/63447)
**Author:** [@Theodros](https://discourse.nodered.org/u/Theodros)\ **Replies:** 6\ **Last updated:** [4 June 2022 22:04 UTC](https://discourse.nodered.org/t/value-considered-as-undefined/63447 "2022-06-04T22:04:45Z")
Hi guys, I have a problem that I don't understand at all. First to understand the situation: My programs works by going on a dashboard and by selecting a variable. When this variable is selected the list number is retu… --- ## [Cannot Install or update nodes EBADENGINE running node 16.x](https://discourse.nodered.org/t/cannot-install-or-update-nodes-ebadengine-running-node-16-x/63400)
**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\ **Replies:** 6\ **Last updated:** [4 June 2022 20:53 UTC](https://discourse.nodered.org/t/cannot-install-or-update-nodes-ebadengine-running-node-16-x/63400 "2022-06-04T20:53:45Z")
I am unable to install any nodes, as they all seem to be failing. Not sure what I did along the way but I am getting this error: ----------------------------------------------------------- 2022-06-02T20:59:46.540Z Inst… --- ## [Are encrypted passwords created via \`htpasswd\` command line compatible with node-red's decryption mechanism?](https://discourse.nodered.org/t/are-encrypted-passwords-created-via-htpasswd-command-line-compatible-with-node-reds-decryption-mechanism/63460)
**Author:** [@Shan](https://discourse.nodered.org/u/Shan)\ **Replies:** 1\ **Last updated:** [4 June 2022 18:29 UTC](https://discourse.nodered.org/t/are-encrypted-passwords-created-via-htpasswd-command-line-compatible-with-node-reds-decryption-mechanism/63460 "2022-06-04T18:29:05Z")
I do not wish to use the node-red admin CLI tool to generate an admin password for my Editor. I understand after going through the code of node-red-admin that it uses bcrypt with Cost value of 8. I tried creating a pass… --- ## [Error loading settings file after ading adminAuth](https://discourse.nodered.org/t/error-loading-settings-file-after-ading-adminauth/63452)
**Author:** [@CBianca](https://discourse.nodered.org/u/CBianca)\ **Replies:** 4\ **Last updated:** [4 June 2022 14:46 UTC](https://discourse.nodered.org/t/error-loading-settings-file-after-ading-adminauth/63452 "2022-06-04T14:46:28Z")
Hello guys, I am trying to create an OAuth/OpenID based authentication with the help of keycloak. For that I have used the following adminAuth: adminAuth: { type: "strategy", strategy: { … --- ## [Guide and how to send MQTT from my esp32 DHT22 to Node-Red into Google cloud platform Bullseye+Node-Red](https://discourse.nodered.org/t/guide-and-how-to-send-mqtt-from-my-esp32-dht22-to-node-red-into-google-cloud-platform-bullseye-node-red/63442)
**Author:** [@lumanga](https://discourse.nodered.org/u/lumanga)\ **Replies:** 4\ **Last updated:** [4 June 2022 14:10 UTC](https://discourse.nodered.org/t/guide-and-how-to-send-mqtt-from-my-esp32-dht22-to-node-red-into-google-cloud-platform-bullseye-node-red/63442 "2022-06-04T14:10:29Z")
Dear All,I have a well working project, with my raspberry pi 3 with linux bullseye, and mosquitto + node-red. With some NodeMCU with DHT22 and Tasmota firmware, I'm able to send DHT22 data via MQTT from the esp32 to No… --- ## [Saving a JSON array in an excel file](https://discourse.nodered.org/t/saving-a-json-array-in-an-excel-file/1531)
**Author:** [@gabrieldicieri](https://discourse.nodered.org/u/gabrieldicieri)\ **Replies:** 13\ **Last updated:** [7 March 2019 10:58 UTC](https://discourse.nodered.org/t/saving-a-json-array-in-an-excel-file/1531 "2019-03-07T10:58:41Z")
Currently I'm doing a project where a sensor captures the distance in relation to time. My current problem lies in saving this data to an excel table, I am currently using this node (https://flows.nodered.org/node/node-r… --- ## [Rapid API - or indeed any API](https://discourse.nodered.org/t/rapid-api-or-indeed-any-api/63319)
**Author:** [@warwickhw](https://discourse.nodered.org/u/warwickhw)\ **Replies:** 2\ **Last updated:** [4 June 2022 11:07 UTC](https://discourse.nodered.org/t/rapid-api-or-indeed-any-api/63319 "2022-06-04T11:07:24Z")
Hi all, I am trying to use the rapidapi service to make queries via an HTTP node. I have a function node that sets the parameters from rapid API: GET /auto-complete?q=game%20of%20thr HTTP/1.1 X-Rapidapi-Host: imdb8.p.… --- ## [Accessing files from localhost](https://discourse.nodered.org/t/accessing-files-from-localhost/63315)
**Author:** [@paulalsmith1000](https://discourse.nodered.org/u/paulalsmith1000)\ **Replies:** 8\ **Last updated:** [4 June 2022 08:41 UTC](https://discourse.nodered.org/t/accessing-files-from-localhost/63315 "2022-06-04T08:41:18Z")
Hello there I think I might be missing something obvious here, but I'm having trouble accessing files using localhost from the dashboard ui? I have a link to a video file on one of the pages which plays when I click on… --- ## [Display PDF file on Dashboard](https://discourse.nodered.org/t/display-pdf-file-on-dashboard/9803)
**Author:** [@silvia](https://discourse.nodered.org/u/silvia)\ **Replies:** 3\ **Last updated:** [3 June 2022 16:09 UTC](https://discourse.nodered.org/t/display-pdf-file-on-dashboard/9803 "2022-06-03T16:09:55Z")
Hi everyone, I'm trying to display a local pdf file on the dashboard (the file path is C:\\Users\\Silvia\\Downloads\\test.pdf); I've tried using a template node with this code on it, as seen on other posts: \ \ **Author:** [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\ **Replies:** 4\ **Last updated:** [3 June 2022 16:07 UTC](https://discourse.nodered.org/t/sub-flow-and-evironment-variables/63424 "2022-06-03T16:07:05Z") Hi, maybe it's a stupid question. Since a while, in the "edit subflow instance" window (the one you can access to by double clicking the subflow node itself) you can find this "Properties" tab: where are present the … --- ## [Can not run serial module on jetson nano](https://discourse.nodered.org/t/can-not-run-serial-module-on-jetson-nano/63337)
**Author:** [@SP-Mushrooms](https://discourse.nodered.org/u/SP-Mushrooms)\ **Replies:** 8\ **Last updated:** [3 June 2022 13:50 UTC](https://discourse.nodered.org/t/can-not-run-serial-module-on-jetson-nano/63337 "2022-06-03T13:50:47Z")
Hello I am running home assistant on a container on jetson nano. I am trying to run a serial node as I have a device that is using simple serial commandes I am trying to use node-red-node-serialport 1.0.1 (node-red-node… --- ## [Autoscroll in ui-template html](https://discourse.nodered.org/t/autoscroll-in-ui-template-html/63349)
**Author:** [@azerty123456](https://discourse.nodered.org/u/azerty123456)\ **Replies:** 1\ **Last updated:** [3 June 2022 13:46 UTC](https://discourse.nodered.org/t/autoscroll-in-ui-template-html/63349 "2022-06-03T13:46:06Z")
Hello, I'm using a file to write and read logs comming from MQTT. This is read in an HTML "ui-template". That's great because when the file is too long, a scroll bar is added automatically. Is there any way to scroll… --- ## [How to implement custom node that wait for User Action trigger in another app](https://discourse.nodered.org/t/how-to-implement-custom-node-that-wait-for-user-action-trigger-in-another-app/63418)
**Author:** [@swapnil\_satpathy](https://discourse.nodered.org/u/swapnil_satpathy)\ **Replies:** 1\ **Last updated:** [3 June 2022 13:07 UTC](https://discourse.nodered.org/t/how-to-implement-custom-node-that-wait-for-user-action-trigger-in-another-app/63418 "2022-06-03T13:07:56Z")
Hi All, I am trying to do POC n8n for a workflow process. Let’s say there is a Web application for shipment creation. Once a shipment is created it has its own life cycle as mentioned below: Shipment Request Crea… --- ## [Node-red and influxDB](https://discourse.nodered.org/t/node-red-and-influxdb/63406)
**Author:** [@a45293](https://discourse.nodered.org/u/a45293)\ **Replies:** 8\ **Last updated:** [3 June 2022 12:42 UTC](https://discourse.nodered.org/t/node-red-and-influxdb/63406 "2022-06-03T12:42:42Z")
Hi, everyone, can someone help me, i need do send my base64 data to influxdb and when i try to do it, i get the error " unsupported input type for mean aggregate: string " Can someone help me, please. --- ## [Stable UV Index site for US](https://discourse.nodered.org/t/stable-uv-index-site-for-us/63408)
**Author:** [@bodylinksystems](https://discourse.nodered.org/u/bodylinksystems)\ **Replies:** 3\ **Last updated:** [3 June 2022 11:33 UTC](https://discourse.nodered.org/t/stable-uv-index-site-for-us/63408 "2022-06-03T11:33:49Z")
I used to get my UV index from a site that is paid now. I can't seem to extract it via openweather, nor can I get it from the EPA (UV Index Search | US EPA)-- since they use a .gif for the number (I would need to extract… --- ## [How to give path for flows\_creds.json in settings.json file](https://discourse.nodered.org/t/how-to-give-path-for-flows-creds-json-in-settings-json-file/63391)
**Author:** [@An-ji](https://discourse.nodered.org/u/An-ji)\ **Replies:** 4\ **Last updated:** [3 June 2022 11:36 UTC](https://discourse.nodered.org/t/how-to-give-path-for-flows-creds-json-in-settings-json-file/63391 "2022-06-03T11:36:05Z")
Hi, I've stored "flows.json" file to external storage and defined path in flowfile property in settings.json Same way i want to store flows\_creds.json and map it to storage path Can you help me how i define path in se… --- ## [\[Help!\] exec node + pulseaudio](https://discourse.nodered.org/t/help-exec-node-pulseaudio/62060)
**Author:** [@brendonhatcher](https://discourse.nodered.org/u/brendonhatcher)\ **Replies:** 57\ **Last updated:** [3 June 2022 10:49 UTC](https://discourse.nodered.org/t/help-exec-node-pulseaudio/62060 "2022-06-03T10:49:46Z")
I am running Node-RED on a Raspberry Pi Zero W. In the Pi terminal, I can run the following without error: pactl -- set-sink-volume 0 15% If I run the same code via an exec node, it doesn't work, and I get the followi… --- ## [HELP, I don't know what variable to send to node md5-file](https://discourse.nodered.org/t/help-i-dont-know-what-variable-to-send-to-node-md5-file/63413)
**Author:** [@Dumy](https://discourse.nodered.org/u/Dumy)\ **Replies:** 3\ **Last updated:** [3 June 2022 10:13 UTC](https://discourse.nodered.org/t/help-i-dont-know-what-variable-to-send-to-node-md5-file/63413 "2022-06-03T10:13:01Z")
I use this node msg.filepath = \`\`; with directory but don't work No such file or directory \[ { "id": "9e0822ba05e4d42d", "type": "md5.file", "z": "b733adccca0e0554", "name": "tr… --- ## [Change Deploy button path](https://discourse.nodered.org/t/change-deploy-button-path/63379)
**Author:** [@atmar](https://discourse.nodered.org/u/atmar)\ **Replies:** 8\ **Last updated:** [3 June 2022 09:27 UTC](https://discourse.nodered.org/t/change-deploy-button-path/63379 "2022-06-03T09:27:28Z")
How can I give path to save the flow once clicked on Deploy button? I have tried changing the user directory but issue here is it takes flow from userdir path and saves at the same location, what I need is it should load… --- ## [String to number](https://discourse.nodered.org/t/string-to-number/988)
**Author:** [@ricardokemp](https://discourse.nodered.org/u/ricardokemp)\ **Replies:** 26\ **Last updated:** [9 September 2021 17:22 UTC](https://discourse.nodered.org/t/string-to-number/988 "2021-09-09T17:22:53Z")
Hello I am reaading one information MQTT in msg.payload. But i receive one string How i can convert it to number ? My intent is show this number in one graph or chart Thank you --- ## [Trigger node 12h](https://discourse.nodered.org/t/trigger-node-12h/63392)
**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\ **Replies:** 6\ **Last updated:** [2 June 2022 19:50 UTC](https://discourse.nodered.org/t/trigger-node-12h/63392 "2022-06-02T19:50:04Z")
Hi, I need to use the trigger node (or the delay node) to wait for 12 hour and then fire the msg. Are them reliable for these long delays? --- ## [Node thingspeak42 not working](https://discourse.nodered.org/t/node-thingspeak42-not-working/63398)
**Author:** [@LuisL](https://discourse.nodered.org/u/LuisL)\ **Replies:** 0\ **Last updated:** [2 June 2022 18:16 UTC](https://discourse.nodered.org/t/node-thingspeak42-not-working/63398 "2022-06-02T18:16:37Z")
Hello. I have a flow for testing communication from Node-Red to Thingspeak. With simple node is working but I want to send more fields at a time an avoid the 15 s delay in Thingspeak. I have tried several things but node… --- ## [How to pass msg int value, to postgresql](https://discourse.nodered.org/t/how-to-pass-msg-int-value-to-postgresql/63389)
**Author:** [@retegi](https://discourse.nodered.org/u/retegi)\ **Replies:** 4\ **Last updated:** [2 June 2022 13:54 UTC](https://discourse.nodered.org/t/how-to-pass-msg-int-value-to-postgresql/63389 "2022-06-02T13:54:27Z")
Hi! I have a int value y msg, but now i need insert this value into a postgresql. Postgresql query incorrect because cant read "msg": INSERT INTO scada\_level (datetimeLevel,level) VALUES (current\_timestamp,msg); How c… --- ## [My template nodes are ignoring my relations](https://discourse.nodered.org/t/my-template-nodes-are-ignoring-my-relations/63385)
**Author:** [@HuOliveiraWork](https://discourse.nodered.org/u/HuOliveiraWork)\ **Replies:** 4\ **Last updated:** [2 June 2022 13:18 UTC](https://discourse.nodered.org/t/my-template-nodes-are-ignoring-my-relations/63385 "2022-06-02T13:18:29Z")
Hi erveryone, I'm trying to change my gauge css properties depending in wha'ts the value of my msg.status. So I added a switch and I have a template for each option like on the image. But my css is allways changing f… --- ## [Firebase Storage](https://discourse.nodered.org/t/firebase-storage/18443)
**Author:** [@lorenzofailla](https://discourse.nodered.org/u/lorenzofailla)\ **Replies:** 1\ **Last updated:** [2 June 2022 13:10 UTC](https://discourse.nodered.org/t/firebase-storage/18443 "2022-06-02T13:10:39Z")
I am unable to install the Node-RED module named "node-red-contrib-firebase-storage". So far, I tried on these machines: Raspberry PI 3B, with Raspbian Buster Raspberry PI 3B, with Ubuntu Core Laptop PC, with Ubuntu 1… --- ## [Connect local SQL server using docker](https://discourse.nodered.org/t/connect-local-sql-server-using-docker/63345)
**Author:** [@noob69](https://discourse.nodered.org/u/noob69)\ **Replies:** 7\ **Last updated:** [2 June 2022 10:26 UTC](https://discourse.nodered.org/t/connect-local-sql-server-using-docker/63345 "2022-06-02T10:26:25Z")
I'm trying to get data from local server using a mssql node hosted in a docker container in the same pc. But it throws me this error. getaddrinfo ENOTFOUND \ I have checked the firewall and tcp ports. They s… [Previous page](https://discourse.nodered.org/latest.md?page=557) [Next page](https://discourse.nodered.org/latest.md?page=559)