# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=708

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

**Page:** 709

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## [Azure Blob Node - \> uploads get mixed up when using two or more simultaneously](https://discourse.nodered.org/t/azure-blob-node-uploads-get-mixed-up-when-using-two-or-more-simultaneously/13071)

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**Author:** [@xoani](https://discourse.nodered.org/u/xoani)\
**Replies:** 2\
**Last updated:** [23 July 2020 20:08 UTC](https://discourse.nodered.org/t/azure-blob-node-uploads-get-mixed-up-when-using-two-or-more-simultaneously/13071 "2020-07-23T20:08:17Z")

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Hello. I am using the Save Blob Azure Node to upload incomind data every 5 seconds. The data is processed differently in 3 different nodes, and all of them upload the data at the end. If two of the nodes reach the "Save …

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## [Modules not compiling](https://discourse.nodered.org/t/modules-not-compiling/30572)

<div class="topic-metadata">

**Author:** [@chuckf201](https://discourse.nodered.org/u/chuckf201)\
**Replies:** 11\
**Last updated:** [23 July 2020 17:53 UTC](https://discourse.nodered.org/t/modules-not-compiling/30572 "2020-07-23T17:53:13Z")

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I've just updated node-red to V1.1.2 and NodeJS to V1.15.0. npm v is 6.14.7 22 Jul 20:12:42 - \[error\] \[Bme280:7ae83153.39fe6\] Error: The module '/home/pi/.node-red/node\_modules/bme280-sensor/node\_modules/i2c-bus/build/…

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## [Last message comparation with new message](https://discourse.nodered.org/t/last-message-comparation-with-new-message/30511)

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**Author:** [@lalo](https://discourse.nodered.org/u/lalo)\
**Replies:** 13\
**Last updated:** [23 July 2020 15:46 UTC](https://discourse.nodered.org/t/last-message-comparation-with-new-message/30511 "2020-07-23T15:46:36Z")

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Hi I want to have a function or node to read values from a sensor so it will be like a comparation between the last msg on payload with the new one to se the difference for example if the read from 5 seconds before was 5…

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## [Dashboard ui\_control: show / enable Tabs using variable not hard-coded](https://discourse.nodered.org/t/dashboard-ui-control-show-enable-tabs-using-variable-not-hard-coded/30577)

<div class="topic-metadata">

**Author:** [@paulkeates](https://discourse.nodered.org/u/paulkeates)\
**Replies:** 4\
**Last updated:** [23 July 2020 15:41 UTC](https://discourse.nodered.org/t/dashboard-ui-control-show-enable-tabs-using-variable-not-hard-coded/30577 "2020-07-23T15:41:17Z")

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Hi, Windows 10. Node-RED 1.1.2. Dashboard 2.22.1 I have a flow that works very well. It uses Dashboard to display multiple Tabs each with a unique name. "ui\_control" lets me hide / show & jump to tabs very easily. E…

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## [Getting two pi's to talk over node red as a heatbeat](https://discourse.nodered.org/t/getting-two-pis-to-talk-over-node-red-as-a-heatbeat/30561)

<div class="topic-metadata">

**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 4\
**Last updated:** [23 July 2020 10:49 UTC](https://discourse.nodered.org/t/getting-two-pis-to-talk-over-node-red-as-a-heatbeat/30561 "2020-07-23T10:49:42Z")

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Hello all, Im trying to make a heartbeat programme between two pis, where if the node red programme on one ends then the other pi will reboot the pi with the node red running on it? The two pis need to be connected via …

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## [MSSQL-PLUS - passing array to UDT parameter (TVP param in a stored procedure)](https://discourse.nodered.org/t/mssql-plus-passing-array-to-udt-parameter-tvp-param-in-a-stored-procedure/30049)

<div class="topic-metadata">

**Author:** [@dhanasekar](https://discourse.nodered.org/u/dhanasekar)\
**Replies:** 22\
**Last updated:** [23 July 2020 12:47 UTC](https://discourse.nodered.org/t/mssql-plus-passing-array-to-udt-parameter-tvp-param-in-a-stored-procedure/30049 "2020-07-23T12:47:31Z")

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Hi, I am trying to execute stored procedure which is having UDT parameter using node-red-contrib-mssql-plus node. the query i used is, exec Rolemaanagement '{{{payload.name}}}',{{{payload.id}}},{{{payload}}}; The …

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## [Ping to a different Pi via NodeRED](https://discourse.nodered.org/t/ping-to-a-different-pi-via-nodered/30591)

<div class="topic-metadata">

**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 14\
**Last updated:** [23 July 2020 12:35 UTC](https://discourse.nodered.org/t/ping-to-a-different-pi-via-nodered/30591 "2020-07-23T12:35:06Z")

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I\`m looking for a way to get two pis to ping to each other via ethernet cable, I was wondering what node I would use for this exactly? :slight\_smile: Any help would be much appreciated

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## [How to read the state of ui-switch in node red](https://discourse.nodered.org/t/how-to-read-the-state-of-ui-switch-in-node-red/30538)

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**Author:** [@shipra](https://discourse.nodered.org/u/shipra)\
**Replies:** 42\
**Last updated:** [23 July 2020 11:45 UTC](https://discourse.nodered.org/t/how-to-read-the-state-of-ui-switch-in-node-red/30538 "2020-07-23T11:45:34Z")

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how to read the state of ui-switch in node red .I want to store the message whenever someone toggle the switch and then i have to pass some messg to mqtt out node

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## [Using OPC UA Server](https://discourse.nodered.org/t/using-opc-ua-server/30602)

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**Author:** [@meisterich](https://discourse.nodered.org/u/meisterich)\
**Replies:** 0\
**Last updated:** [23 July 2020 11:28 UTC](https://discourse.nodered.org/t/using-opc-ua-server/30602 "2020-07-23T11:28:05Z")

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Hello, im trying to use the node-red-contrib-opcua to set up a opc ua server to simply send a value as a variable to the serven and then read that value out. Sadly it doesnt seem to work at all. Has someone expirience wi…

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## [Node function repeating message before processing request](https://discourse.nodered.org/t/node-function-repeating-message-before-processing-request/30599)

<div class="topic-metadata">

**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 1\
**Last updated:** [23 July 2020 10:46 UTC](https://discourse.nodered.org/t/node-function-repeating-message-before-processing-request/30599 "2020-07-23T10:46:51Z")

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Hi all, So I have a node reading a ping from a local ethernet connected device, I\`m wanting to make a heart beat to this device so that when it doesnt ping it sends a reboot via a relay. Only issue I have at the moment …

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## [After upgrade, UI stuck at "Adding flows to workspace"](https://discourse.nodered.org/t/after-upgrade-ui-stuck-at-adding-flows-to-workspace/30520)

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**Author:** [@NathGreg](https://discourse.nodered.org/u/NathGreg)\
**Replies:** 8\
**Last updated:** [23 July 2020 10:09 UTC](https://discourse.nodered.org/t/after-upgrade-ui-stuck-at-adding-flows-to-workspace/30520 "2020-07-23T10:09:49Z")

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I apologise if this has been written about elsewhere, but searching the forums and google haven't yielded anything helpful. TL;DR: After upgrading the node-red install on my pi using the official script, everything appe…

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## [Update file button](https://discourse.nodered.org/t/update-file-button/30181)

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**Author:** [@Ataraxial](https://discourse.nodered.org/u/Ataraxial)\
**Replies:** 2\
**Last updated:** [23 July 2020 09:07 UTC](https://discourse.nodered.org/t/update-file-button/30181 "2020-07-23T09:07:50Z")

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Good morning, I'm trying to implement an option in node-red and I don't know how to approach it. What I want to do is a node with a button, that when I press it, I will compare the name of the n file locally with anoth…

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## [Connect 2 node-red with tcp](https://discourse.nodered.org/t/connect-2-node-red-with-tcp/30556)

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**Author:** [@Roger](https://discourse.nodered.org/u/Roger)\
**Replies:** 7\
**Last updated:** [23 July 2020 09:02 UTC](https://discourse.nodered.org/t/connect-2-node-red-with-tcp/30556 "2020-07-23T09:02:12Z")

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Hello, how I can send the data that I receive in the first node-red to the second with this tcp configuration?

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## [How to forward the browser to another link?](https://discourse.nodered.org/t/how-to-forward-the-browser-to-another-link/30573)

<div class="topic-metadata">

**Author:** [@douglassinji](https://discourse.nodered.org/u/douglassinji)\
**Replies:** 1\
**Last updated:** [23 July 2020 08:42 UTC](https://discourse.nodered.org/t/how-to-forward-the-browser-to-another-link/30573 "2020-07-23T08:42:30Z")

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I have a dashboard host in IBM cloudant and my dashboard have the address "https://xxxxxxx.mybluemix.net/ui/", but i dont wanna the user uses this link to access the dashboard.... I want him use the link "https://xxxxxxx…

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## [Credentials could not be decrypted - Projects github](https://discourse.nodered.org/t/credentials-could-not-be-decrypted-projects-github/30578)

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**Author:** [@jimmy232](https://discourse.nodered.org/u/jimmy232)\
**Replies:** 1\
**Last updated:** [23 July 2020 08:37 UTC](https://discourse.nodered.org/t/credentials-could-not-be-decrypted-projects-github/30578 "2020-07-23T08:37:31Z")

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I've recently tried Node-red's Project extension and have struggled to secure a method for sharing projects with decrypted credentials. For some reason am unable to execute a corresponding key. I have one host running …

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## [Dummy needs basic OS help](https://discourse.nodered.org/t/dummy-needs-basic-os-help/30296)

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**Author:** [@RASelkirk](https://discourse.nodered.org/u/RASelkirk)\
**Replies:** 5\
**Last updated:** [23 July 2020 06:58 UTC](https://discourse.nodered.org/t/dummy-needs-basic-os-help/30296 "2020-07-23T06:58:04Z")

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Hi All, After taking a year off, I'm trying to get back into using my RasPI. I upgraded both N-R and N-R dashboard to the latest versions and now N-R refuses to run from the menu shortcut. I checked the shortcut propert…

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## [How to efficiently set and update global variables when received MQTT message](https://discourse.nodered.org/t/how-to-efficiently-set-and-update-global-variables-when-received-mqtt-message/30545)

<div class="topic-metadata">

**Author:** [@zazas321](https://discourse.nodered.org/u/zazas321)\
**Replies:** 3\
**Last updated:** [23 July 2020 05:34 UTC](https://discourse.nodered.org/t/how-to-efficiently-set-and-update-global-variables-when-received-mqtt-message/30545 "2020-07-23T05:34:41Z")

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My rasberry pi is subscribed to MQTT topic called "counter". When I start my task, I receive an integer number for example 5. I set my counter to flow.counter = 5. I need to set this to flow or global scope because I n…

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## [Http request Bearer Token](https://discourse.nodered.org/t/http-request-bearer-token/30554)

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**Author:** [@ecoone](https://discourse.nodered.org/u/ecoone)\
**Replies:** 4\
**Last updated:** [23 July 2020 05:31 UTC](https://discourse.nodered.org/t/http-request-bearer-token/30554 "2020-07-23T05:31:26Z")

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Hallo Leute, Ich bin neu hier und hoffe es ist nicht schlimm wenn ich auf Deutsch schreibe, weil meine Englisch Kenntnisse nicht die besten sind oder mann es dann nicht verstehen könnte. Ich habe folgendes Problem, ich…

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## [Problem with email node from](https://discourse.nodered.org/t/problem-with-email-node-from/29691)

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**Author:** [@mikeh](https://discourse.nodered.org/u/mikeh)\
**Replies:** 3\
**Last updated:** [23 July 2020 02:12 UTC](https://discourse.nodered.org/t/problem-with-email-node-from/29691 "2020-07-23T02:12:59Z")

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I tried to change the default userid by providing msg.from But in the email I received, it's a different email address. The from became: michael@pstpools.com But X-Google-Original-From: has the correct from email …

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## [Ubuntu Core / Raspberrypi 3 / GPIO and i2C](https://discourse.nodered.org/t/ubuntu-core-raspberrypi-3-gpio-and-i2c/28208)

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**Author:** [@lwlagrange](https://discourse.nodered.org/u/lwlagrange)\
**Replies:** 6\
**Last updated:** [22 July 2020 22:59 UTC](https://discourse.nodered.org/t/ubuntu-core-raspberrypi-3-gpio-and-i2c/28208 "2020-07-22T22:59:37Z")

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Greetings! I installed core 18 on my raspberrypi 3 and am attempting to run the nod-red dashboard on on the wpe-webkit with mir-kiosk. I have 2 specific problems that arise which I assume are a result of the confinement…

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## [Automatic sprinkler system](https://discourse.nodered.org/t/automatic-sprinkler-system/30301)

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**Author:** [@Vlak](https://discourse.nodered.org/u/Vlak)\
**Replies:** 10\
**Last updated:** [22 July 2020 19:35 UTC](https://discourse.nodered.org/t/automatic-sprinkler-system/30301 "2020-07-22T19:35:00Z")

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Dear people can anyone help me with the following. Il recently installed a rain gauge. Now I want to link my irrigation system to this. What I want to do with this is quite simple and I do the following. I want to take …

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## [Sometimes something is really funny, really funny](https://discourse.nodered.org/t/sometimes-something-is-really-funny-really-funny/30551)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 3\
**Last updated:** [22 July 2020 17:55 UTC](https://discourse.nodered.org/t/sometimes-something-is-really-funny-really-funny/30551 "2020-07-22T17:55:19Z")

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I decided on my development system, that I had so much junk in the npm repo, generated while learning how to write custom nodes for NR, I would clean stuff up. So I removed NR (just case I could), removed npm, removed n…

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## [How to create user interface for taking input in node-red](https://discourse.nodered.org/t/how-to-create-user-interface-for-taking-input-in-node-red/30476)

<div class="topic-metadata">

**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 4\
**Last updated:** [22 July 2020 16:05 UTC](https://discourse.nodered.org/t/how-to-create-user-interface-for-taking-input-in-node-red/30476 "2020-07-22T16:05:56Z")

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Hello Everyone, I want to create one user interface from where I can pass some input in node-red. Inputs: for example String, numbers, etc... And i want to read that inputs in node-red. Please help me out. Thank you …

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## [Installation error message](https://discourse.nodered.org/t/installation-error-message/30558)

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**Author:** [@noclue](https://discourse.nodered.org/u/noclue)\
**Replies:** 1\
**Last updated:** [22 July 2020 15:25 UTC](https://discourse.nodered.org/t/installation-error-message/30558 "2020-07-22T15:25:27Z")

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88Hello-- What's going on here? I'm a newbie and have no idea how to fix this. I'm running Windows 7 and plan on experimenting with node-RED on a Raspberry Pi. Thanks in advance for your help Exception calling "Down…

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## [How to receive data](https://discourse.nodered.org/t/how-to-receive-data/30532)

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**Author:** [@perico](https://discourse.nodered.org/u/perico)\
**Replies:** 2\
**Last updated:** [22 July 2020 15:14 UTC](https://discourse.nodered.org/t/how-to-receive-data/30532 "2020-07-22T15:14:48Z")

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Good morning, I have a gateway which has a connection with node red, I'm receiving data from this gateway correctly, but now my intention is to receive this data to my pc node-red app. How I can connect this two node-re…

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## [Chart.js and candlestick charts](https://discourse.nodered.org/t/chart-js-and-candlestick-charts/30414)

<div class="topic-metadata">

**Author:** [@chuckf201](https://discourse.nodered.org/u/chuckf201)\
**Replies:** 6\
**Last updated:** [22 July 2020 15:06 UTC](https://discourse.nodered.org/t/chart-js-and-candlestick-charts/30414 "2020-07-22T15:06:45Z")

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I've been looking all over the Inet for an example or tutorial for Financial candlestick charting. x: date, Y: open,High, low, close Can't seem to locate any flows for this use.

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## [Using command line access with the Docker install](https://discourse.nodered.org/t/using-command-line-access-with-the-docker-install/30434)

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**Author:** [@MaxVRAM](https://discourse.nodered.org/u/MaxVRAM)\
**Replies:** 10\
**Last updated:** [22 July 2020 13:30 UTC](https://discourse.nodered.org/t/using-command-line-access-with-the-docker-install/30434 "2020-07-22T13:30:41Z")

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I've deployed a Node-RED Docker stack and can't work out how to access the node-red admin hash-pw command. I'm trying to hash a password to put into the settings.json so I can host my deployment for remote access. In th…

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## [How to use the RiveScript node from node-red-contrib-rive](https://discourse.nodered.org/t/how-to-use-the-rivescript-node-from-node-red-contrib-rive/30292)

<div class="topic-metadata">

**Author:** [@stefan24](https://discourse.nodered.org/u/stefan24)\
**Replies:** 17\
**Last updated:** [22 July 2020 13:43 UTC](https://discourse.nodered.org/t/how-to-use-the-rivescript-node-from-node-red-contrib-rive/30292 "2020-07-22T13:43:22Z")

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I read about RiveScript for using with Telegram bots, which I can use instead of a large switch node. But I have not found, how to send the text from Telegram or any other node to the input of the RiveScript node. I al…

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## [Ubuntu 20.04 Node Red and node-red-contrib-modbus](https://discourse.nodered.org/t/ubuntu-20-04-node-red-and-node-red-contrib-modbus/30547)

<div class="topic-metadata">

**Author:** [@Kampfwurst](https://discourse.nodered.org/u/Kampfwurst)\
**Replies:** 2\
**Last updated:** [22 July 2020 13:15 UTC](https://discourse.nodered.org/t/ubuntu-20-04-node-red-and-node-red-contrib-modbus/30547 "2020-07-22T13:15:32Z")

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Hi, I would like to install the node-red-contrib-modbus under ubuntu 20.04 and node red 1.0.6. I cant get it work. I get the following error. ----------------------------------------------------------- 2020-07-22T12:3…

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## [Overlay text onto image](https://discourse.nodered.org/t/overlay-text-onto-image/16011)

<div class="topic-metadata">

**Author:** [@m\_elias](https://discourse.nodered.org/u/m_elias)\
**Replies:** 5\
**Last updated:** [22 July 2020 12:12 UTC](https://discourse.nodered.org/t/overlay-text-onto-image/16011 "2020-07-22T12:12:22Z")

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I've been unable to find any examples online of how to overlay text onto an image. I'm using a http request node to return a binary buffer from an IP camera. Then I'm formatting the date/time (contrib-moment), setting th…

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