# Latest **URL:** https://discourse.nodered.org/latest.md?page=1054 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 1055 --- ## [Modbus with android](https://discourse.nodered.org/t/modbus-with-android/29323)
**Author:** [@Jerem](https://discourse.nodered.org/u/Jerem)\ **Replies:** 4\ **Last updated:** [1 July 2020 19:18 UTC](https://discourse.nodered.org/t/modbus-with-android/29323 "2020-07-01T19:18:07Z")
Hello, Is there someone know how to integrate modbus node on a android phone ? Thanks ! --- ## [Node-RED Postgres @open-kappa/node-red-contrib-mydb](https://discourse.nodered.org/t/node-red-postgres-open-kappa-node-red-contrib-mydb/28001)
**Author:** [@79cj7jeep](https://discourse.nodered.org/u/79cj7jeep)\ **Replies:** 9\ **Last updated:** [1 July 2020 18:42 UTC](https://discourse.nodered.org/t/node-red-postgres-open-kappa-node-red-contrib-mydb/28001 "2020-07-01T18:42:57Z")
@open-kappa/node-red-contrib-mydb Judging by the number of people who download this, I'm certain I'm just missing something basic in my attempt to use it. I have a simple postgres database and table set up. I have 5 c… --- ## [Serial Port Control](https://discourse.nodered.org/t/serial-port-control/14894)
**Author:** [@32Domi](https://discourse.nodered.org/u/32Domi)\ **Replies:** 19\ **Last updated:** [1 July 2020 18:36 UTC](https://discourse.nodered.org/t/serial-port-control/14894 "2020-07-01T18:36:19Z")
Hi everyone, I'm having trouble using the node-red-node-serialport node at 0.8.3 on Node-RED 0.20.5 I try to connect a device (Multiverter) with a usb-serial adapter. With minicom I can control the device at /dev/ttyUS… --- ## [Auto update to snap package 1.1.0 node-red goes into uncaught exception](https://discourse.nodered.org/t/auto-update-to-snap-package-1-1-0-node-red-goes-into-uncaught-exception/29324)
**Author:** [@iamhermes](https://discourse.nodered.org/u/iamhermes)\ **Replies:** 1\ **Last updated:** [1 July 2020 17:20 UTC](https://discourse.nodered.org/t/auto-update-to-snap-package-1-1-0-node-red-goes-into-uncaught-exception/29324 "2020-07-01T17:20:35Z")
with snap autoupdate (third time the service stops working) the tool did not start. now following error occurs: 2020-07-01T15:33:27Z /usr/bin/snap\[3103\]: cmd.go:105: DEBUG: restarting into "/snap/core/current/usr/bin/s… --- ## [Help with creating a buffer of hex bytes from a string of hex words](https://discourse.nodered.org/t/help-with-creating-a-buffer-of-hex-bytes-from-a-string-of-hex-words/29259)
**Author:** [@jeffreys](https://discourse.nodered.org/u/jeffreys)\ **Replies:** 13\ **Last updated:** [1 July 2020 15:36 UTC](https://discourse.nodered.org/t/help-with-creating-a-buffer-of-hex-bytes-from-a-string-of-hex-words/29259 "2020-07-01T15:36:00Z")
We will be passing a string from MQTT that is formatted like this "0201 0141 4000 0841 1E90 0000 0000 8203 45" Right now I just have that in an inject (as a string) that goes into a function. The values are already in h… --- ## [Send csv file to influxdb using node-red](https://discourse.nodered.org/t/send-csv-file-to-influxdb-using-node-red/28868)
**Author:** [@nitesh](https://discourse.nodered.org/u/nitesh)\ **Replies:** 26\ **Last updated:** [1 July 2020 14:54 UTC](https://discourse.nodered.org/t/send-csv-file-to-influxdb-using-node-red/28868 "2020-07-01T14:54:43Z")
Hello everyone,I am new to node-red and Infludb .I am tying to push data to influxdb via node-red. I am not able to write correct json script in function node . Please have a look into the problem that i have posted in… --- ## [Recommendations for the new guy?](https://discourse.nodered.org/t/recommendations-for-the-new-guy/28929)
**Author:** [@repomanz](https://discourse.nodered.org/u/repomanz)\ **Replies:** 25\ **Last updated:** [1 July 2020 14:41 UTC](https://discourse.nodered.org/t/recommendations-for-the-new-guy/28929 "2020-07-01T14:41:52Z")
Hi everyone. New to IOT, new to home assistant and new to node red. Got it all setup and some pretty neat, but basic routines. What I have below is like a kindergarten's first art project. It works but it's a bit basi… --- ## [Download Multipart File to Node Red with HTTP Get Request](https://discourse.nodered.org/t/download-multipart-file-to-node-red-with-http-get-request/29254)
**Author:** [@tim.johnson07c](https://discourse.nodered.org/u/tim.johnson07c)\ **Replies:** 4\ **Last updated:** [1 July 2020 12:34 UTC](https://discourse.nodered.org/t/download-multipart-file-to-node-red-with-http-get-request/29254 "2020-07-01T12:34:48Z")
Hello, I am trying to download a file from a server to Node Red then save as a file. The file is hosted on a server that responds to a GET request. Currently, the flow downloads part of the file using an HTTP request no… --- ## [Why does ui-chart send an output on deploy?](https://discourse.nodered.org/t/why-does-ui-chart-send-an-output-on-deploy/29223)
**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\ **Replies:** 43\ **Last updated:** [1 July 2020 12:30 UTC](https://discourse.nodered.org/t/why-does-ui-chart-send-an-output-on-deploy/29223 "2020-07-01T12:30:59Z")
If you have a ui-chart connected to a debug node (set to display the complete msg object) and do a deploy, the chart node generates a output message that only contains a message id. Is this an expected action? Example:… --- ## [Reading HTML in Custom node](https://discourse.nodered.org/t/reading-html-in-custom-node/29154)
**Author:** [@abouslima](https://discourse.nodered.org/u/abouslima)\ **Replies:** 8\ **Last updated:** [1 July 2020 12:26 UTC](https://discourse.nodered.org/t/reading-html-in-custom-node/29154 "2020-07-01T12:26:17Z")
Greetings, I have been creating a custom node that reads input and runs them in a Python script, I have a problem In capturing the HTML by JavaScript from my custom node, all I can get is the msg Object. Regards, --- ## [Newbie here, Tibber question](https://discourse.nodered.org/t/newbie-here-tibber-question/29199)
**Author:** [@Henke82](https://discourse.nodered.org/u/Henke82)\ **Replies:** 26\ **Last updated:** [1 July 2020 11:50 UTC](https://discourse.nodered.org/t/newbie-here-tibber-question/29199 "2020-07-01T11:50:58Z")
Hi guys! Maybe this is a more general question to be honest, but the context still is around the Dashboard topic so I will give it a try. I installed Node-red for a couple of weeks ago but I just recently started to work… --- ## [Passing Data from cloud to SAP using Node-RED](https://discourse.nodered.org/t/passing-data-from-cloud-to-sap-using-node-red/29213)
**Author:** [@Balamurugan](https://discourse.nodered.org/u/Balamurugan)\ **Replies:** 5\ **Last updated:** [1 July 2020 11:13 UTC](https://discourse.nodered.org/t/passing-data-from-cloud-to-sap-using-node-red/29213 "2020-07-01T11:13:58Z")
Hi, IOT sensor data is stored in cloud. This cloud supports Node-Red programming. Now i wanted to send those data to SAP from Cloud. or need to pull the data from SAO, How to do that, any document available? any hints wo… --- ## [Integral Locked - The process is far from the setpoint and the integral term has been locked to prevent integral windup](https://discourse.nodered.org/t/integral-locked-the-process-is-far-from-the-setpoint-and-the-integral-term-has-been-locked-to-prevent-integral-windup/29176)
**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\ **Replies:** 11\ **Last updated:** [1 July 2020 10:53 UTC](https://discourse.nodered.org/t/integral-locked-the-process-is-far-from-the-setpoint-and-the-integral-term-has-been-locked-to-prevent-integral-windup/29176 "2020-07-01T10:53:05Z")
i'am using this node https://flows.nodered.org/node/node-red-contrib-pid for my flow. here's how i configure it. What is the reset windup and Integral Locked means and how to correct it? Thanks in advance.! --- ## [Trouble with node-red-contrib-opi-gpio install (versions)](https://discourse.nodered.org/t/trouble-with-node-red-contrib-opi-gpio-install-versions/18245)
**Author:** [@Quanta](https://discourse.nodered.org/u/Quanta)\ **Replies:** 2\ **Last updated:** [1 July 2020 10:23 UTC](https://discourse.nodered.org/t/trouble-with-node-red-contrib-opi-gpio-install-versions/18245 "2020-07-01T10:23:17Z")
NR 1.0.2 Node v12.13.0 Distributor ID: Debian Description: Debian GNU/Linux 10 (buster) Release: 10 Codename: buster Platform: Nano Pi NEO 2 I am getting errors like this : .cache/node-gyp/12.13.0… --- ## [How to write a method by "node-red-contrib-opcua"](https://discourse.nodered.org/t/how-to-write-a-method-by-node-red-contrib-opcua/14629)
**Author:** [@Jack](https://discourse.nodered.org/u/Jack)\ **Replies:** 10\ **Last updated:** [1 July 2020 09:20 UTC](https://discourse.nodered.org/t/how-to-write-a-method-by-node-red-contrib-opcua/14629 "2020-07-01T09:20:52Z")
Sorry for my bad English,I want to use "node-red-contrib-opcua0.2.43" to deploy a opc-ua server,the help of "OPC UA Compact Server" is said that " AddressSpace: A function like programming editor to construct your own a… --- ## [Restoring files from desktop NR and electron](https://discourse.nodered.org/t/restoring-files-from-desktop-nr-and-electron/29295)
**Author:** [@Ivy](https://discourse.nodered.org/u/Ivy)\ **Replies:** 2\ **Last updated:** [1 July 2020 09:19 UTC](https://discourse.nodered.org/t/restoring-files-from-desktop-nr-and-electron/29295 "2020-07-01T09:19:14Z")
Hi, for the past few weeks I've been making a dashboard on NR. It worked great. but then I want to be able to distribute the project. I followed the tutorial I found on making it as a desktop app. which leads me to elec… --- ## [Hide node label on default](https://discourse.nodered.org/t/hide-node-label-on-default/29290)
**Author:** [@iiot2k](https://discourse.nodered.org/u/iiot2k)\ **Replies:** 2\ **Last updated:** [1 July 2020 08:13 UTC](https://discourse.nodered.org/t/hide-node-label-on-default/29290 "2020-07-01T08:13:17Z")
Hi, on new node red, it's possible to hide/show node labels. But when you drag and drop a node to flow, on default the label is shown. How can I hide label on drag and drop (same as link node) ? If a node label is hide… --- ## [Installation of gaiandb node](https://discourse.nodered.org/t/installation-of-gaiandb-node/29211)
**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\ **Replies:** 3\ **Last updated:** [1 July 2020 07:59 UTC](https://discourse.nodered.org/t/installation-of-gaiandb-node/29211 "2020-07-01T07:59:52Z")
Hello everyone, I am trying to install gaiandb node But I am getting some error. It is not installing on my system. I want to know that, how i can install gaiandb node. Please help me out regarding this error. --- ## [How to use sqlitedb node and register on sqlitedb website](https://discourse.nodered.org/t/how-to-use-sqlitedb-node-and-register-on-sqlitedb-website/29284)
**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\ **Replies:** 2\ **Last updated:** [1 July 2020 07:25 UTC](https://discourse.nodered.org/t/how-to-use-sqlitedb-node-and-register-on-sqlitedb-website/29284 "2020-07-01T07:25:55Z")
Hello everyone, I want to use sqlitedb node, but for using i need API key and API URL. I am trying to register on sqlitedb.com for getting the API key and URL, but it is not accepting any new registrations. Please hel… --- ## [How do I save a file uploaded from dashboard locally in Node-RED?](https://discourse.nodered.org/t/how-do-i-save-a-file-uploaded-from-dashboard-locally-in-node-red/17210)
**Author:** [@eoliverio](https://discourse.nodered.org/u/eoliverio)\ **Replies:** 7\ **Last updated:** [1 July 2020 06:25 UTC](https://discourse.nodered.org/t/how-do-i-save-a-file-uploaded-from-dashboard-locally-in-node-red/17210 "2020-07-01T06:25:52Z")
I have simple form in the dashboard that lets me select and upload a file. \
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Hi all, how can I check several payloads in a single switch node? Sample: i have a tradfri remote controller with 5 buttons. when i click the central button, then i get a value (empty), when i click top button (payload… --- ## [Test for undefined in switch node?](https://discourse.nodered.org/t/test-for-undefined-in-switch-node/29271)
**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\ **Replies:** 3\ **Last updated:** [1 July 2020 03:47 UTC](https://discourse.nodered.org/t/test-for-undefined-in-switch-node/29271 "2020-07-01T03:47:20Z")
I have seen references to using a switch and testing for 'is not null' as a way to determine if a variable is not undefined. Is this is not strictly correct. Is there a reason the switch node has no test for undefined … --- ## [Need Help with IF Then](https://discourse.nodered.org/t/need-help-with-if-then/29263)
**Author:** [@hi8smx](https://discourse.nodered.org/u/hi8smx)\ **Replies:** 2\ **Last updated:** [1 July 2020 01:43 UTC](https://discourse.nodered.org/t/need-help-with-if-then/29263 "2020-07-01T01:43:22Z")
Hi, I am not a programmer by any means and I just started using Node Red for simple projects regarding amateur radio. I´m using an OWM to get local weather to my location and it is working fine but I want to take it a st… --- ## [Trouble with contrib-modbus module](https://discourse.nodered.org/t/trouble-with-contrib-modbus-module/17653)
**Author:** [@jfehl](https://discourse.nodered.org/u/jfehl)\ **Replies:** 15\ **Last updated:** [1 July 2020 01:33 UTC](https://discourse.nodered.org/t/trouble-with-contrib-modbus-module/17653 "2020-07-01T01:33:23Z")
I am having trouble with contrib-modbus 4.1.3 communicating with a PLC. Version 3.6.1 works fine in a similar setup at a different location. Following the info I try ti install a later version but get the following err… --- ## [Node-Red using chart.js vertical bar graph](https://discourse.nodered.org/t/node-red-using-chart-js-vertical-bar-graph/29253)
**Author:** [@Curious](https://discourse.nodered.org/u/Curious)\ **Replies:** 6\ **Last updated:** [1 July 2020 00:56 UTC](https://discourse.nodered.org/t/node-red-using-chart-js-vertical-bar-graph/29253 "2020-07-01T00:56:52Z")
Hi , I am fairly new to Node-Red but think it is a great tool. Once you get the hang of using messages . . . it is amazing! I have created charts in Node-Red using the node-red-contrib-chartjs. The charts I have create… --- ## [Clear Dynamically Form UI](https://discourse.nodered.org/t/clear-dynamically-form-ui/19061)
**Author:** [@Hamidreza](https://discourse.nodered.org/u/Hamidreza)\ **Replies:** 11\ **Last updated:** [1 July 2020 00:49 UTC](https://discourse.nodered.org/t/clear-dynamically-form-ui/19061 "2020-07-01T00:49:34Z")
I Want To Clear Form Manually. My Form Contain 2Textinput ,UserName And Password. I Want Clear UserName and Password In The Form Manually When Accept Password. --- ## [Ideas on how to monitor elapsed time since last event](https://discourse.nodered.org/t/ideas-on-how-to-monitor-elapsed-time-since-last-event/29136)
**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\ **Replies:** 11\ **Last updated:** [1 July 2020 00:10 UTC](https://discourse.nodered.org/t/ideas-on-how-to-monitor-elapsed-time-since-last-event/29136 "2020-07-01T00:10:14Z")
Hey Guys, I have a couple of Wall Plugs that are able to be Tasmota'd (is that a new dictionary word i wonder ?) - they provide energy monitoring as well as remote control. I plan on using them on my Washing machine an… --- ## [Change colour of widget in dashboard](https://discourse.nodered.org/t/change-colour-of-widget-in-dashboard/29260)
**Author:** [@martynwheeler](https://discourse.nodered.org/u/martynwheeler)\ **Replies:** 3\ **Last updated:** [30 June 2020 22:40 UTC](https://discourse.nodered.org/t/change-colour-of-widget-in-dashboard/29260 "2020-06-30T22:40:53Z")
Hi, I am using a template node to put together a dashboard. I have a button which is styled: class="md-raised nr-dashboard-form-button md-button md-ink-ripple" The colour of the button is defined in the node-red dash… --- ## [Switch node using any JSONata expression ceases to pass messages when msg.parts is set](https://discourse.nodered.org/t/switch-node-using-any-jsonata-expression-ceases-to-pass-messages-when-msg-parts-is-set/29149)
**Author:** [@shimbone](https://discourse.nodered.org/u/shimbone)\ **Replies:** 11\ **Last updated:** [30 June 2020 21:50 UTC](https://discourse.nodered.org/t/switch-node-using-any-jsonata-expression-ceases-to-pass-messages-when-msg-parts-is-set/29149 "2020-06-30T21:50:54Z")
So strange... Switch nodes taking advantage of JSONata as a criterion for any output seem to cease passing on ALL messages on ALL outputs should msg.parts get set. This is happening irrespective of the nature of any of … --- ## [Ok, My inexperience with Javascript is showing!](https://discourse.nodered.org/t/ok-my-inexperience-with-javascript-is-showing/29249)
**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\ **Replies:** 9\ **Last updated:** [30 June 2020 21:19 UTC](https://discourse.nodered.org/t/ok-my-inexperience-with-javascript-is-showing/29249 "2020-06-30T21:19:52Z")
If have a payload that has the following: array\[1\] 0: object Index: 1 How the heck do I get to the value of the index key? This is a javascript array, with one element, that happens to be a javascript object? Or I am… [Previous page](https://discourse.nodered.org/latest.md?page=1053) [Next page](https://discourse.nodered.org/latest.md?page=1055)