# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1140

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

**Page:** 1141

---

## [Trying to receive Data from Website](https://discourse.nodered.org/t/trying-to-receive-data-from-website/22989)

<div class="topic-metadata">

**Author:** [@Montezoma](https://discourse.nodered.org/u/Montezoma)\
**Replies:** 7\
**Last updated:** [12 March 2020 07:14 UTC](https://discourse.nodered.org/t/trying-to-receive-data-from-website/22989 "2020-03-12T07:14:08Z")

</div>

Hi, I'm trying to receive data from a website using the Http request Node from https://api.cellmapper.net/v6/getSite?MCC=228&MNC=1&Site=00000&RAT=LTE. When accessing the URL on chrome, I can clearly see the data I want t…

---

## [Diagnosing Node-RED crashes](https://discourse.nodered.org/t/diagnosing-node-red-crashes/14330)

<div class="topic-metadata">

**Author:** [@kolban](https://discourse.nodered.org/u/kolban)\
**Replies:** 8\
**Last updated:** [12 March 2020 06:23 UTC](https://discourse.nodered.org/t/diagnosing-node-red-crashes/14330 "2020-03-12T06:23:53Z")

</div>

While tinkering with Node-RED, I ended up in a situation where each time I start it, it now crashes. The log is as follows 14 Aug 20:40:59 - \[info\] Starting flows 14 Aug 20:40:59 - \[info\] Started flows node-red\[27912\]:…

---

## [Serialport Zeros at beginning corruption](https://discourse.nodered.org/t/serialport-zeros-at-beginning-corruption/23013)

<div class="topic-metadata">

**Author:** [@moovida](https://discourse.nodered.org/u/moovida)\
**Replies:** 0\
**Last updated:** [12 March 2020 06:18 UTC](https://discourse.nodered.org/t/serialport-zeros-at-beginning-corruption/23013 "2020-03-12T06:18:09Z")

</div>

Hello, I have the following scenario: android device that sends via BLE string messages to a raspberry PI using node-red node-red serial port (NRSP) is configured to accept binary messages of fixed length everything wo…

---

## [State trail problem](https://discourse.nodered.org/t/state-trail-problem/22783)

<div class="topic-metadata">

**Author:** [@olab](https://discourse.nodered.org/u/olab)\
**Replies:** 11\
**Last updated:** [11 March 2020 12:05 UTC](https://discourse.nodered.org/t/state-trail-problem/22783 "2020-03-11T12:05:09Z")

</div>

I'm trying to make the state trail work based on planned task data from my MSSQL server, but it won't. I cant find any error in my code. Can someone help? \[{"id":"3b0e58f2.0a12b8","type":"MSSQL","z":"9a177fb4.e8284",…

---

## [Saving MQTT JSON data to an excel spreadsheet](https://discourse.nodered.org/t/saving-mqtt-json-data-to-an-excel-spreadsheet/22941)

<div class="topic-metadata">

**Author:** [@eduardoluiztodero](https://discourse.nodered.org/u/eduardoluiztodero)\
**Replies:** 8\
**Last updated:** [11 March 2020 22:38 UTC](https://discourse.nodered.org/t/saving-mqtt-json-data-to-an-excel-spreadsheet/22941 "2020-03-11T22:38:18Z")

</div>

Hello guys, I'm new to node-red. I want to save the data I receive from my MQTT in JSON form in exel, identifying the columns. In my case, the first position is the chip ID, which changes depending on the device I am rec…

---

## [Ldap auth how to give cerfificate path](https://discourse.nodered.org/t/ldap-auth-how-to-give-cerfificate-path/22958)

<div class="topic-metadata">

**Author:** [@DemonKing](https://discourse.nodered.org/u/DemonKing)\
**Replies:** 1\
**Last updated:** [11 March 2020 22:31 UTC](https://discourse.nodered.org/t/ldap-auth-how-to-give-cerfificate-path/22958 "2020-03-11T22:31:15Z")

</div>

hi team I am using "node-red-contrib-nr-ldapauth " node for LDAP Authentication and without cetification its working very fine but in PROD Server its comes with certification . i tried to give certificate path its throw…

---

## [Problem with settings.js](https://discourse.nodered.org/t/problem-with-settings-js/22923)

<div class="topic-metadata">

**Author:** [@gianluca.ginoble](https://discourse.nodered.org/u/gianluca.ginoble)\
**Replies:** 21\
**Last updated:** [11 March 2020 22:27 UTC](https://discourse.nodered.org/t/problem-with-settings-js/22923 "2020-03-11T22:27:30Z")

</div>

Hi all. This morning i've a problem to edit "settings.js" because i've this error: \[Error while reading the lock file ./.settings.js.swp: not enough data read\] How can i resolve it?

---

## [Use 'Projects' on Mac / Docker with git to transfer to Prod without 'Projects' on RPi](https://discourse.nodered.org/t/use-projects-on-mac-docker-with-git-to-transfer-to-prod-without-projects-on-rpi/22583)

<div class="topic-metadata">

**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 11\
**Last updated:** [11 March 2020 22:19 UTC](https://discourse.nodered.org/t/use-projects-on-mac-docker-with-git-to-transfer-to-prod-without-projects-on-rpi/22583 "2020-03-11T22:19:42Z")

</div>

Hi, I develop my flows on Docker for Mac - then push changes to Github. To then bring the latest code onto my production RPi, I open Node-Red Admin, then do - open editor - Project History Tab \> Commit History \> Refresh…

---

## [DropDownList + Data API](https://discourse.nodered.org/t/dropdownlist-data-api/22829)

<div class="topic-metadata">

**Author:** [@taminhhienmor](https://discourse.nodered.org/u/taminhhienmor)\
**Replies:** 10\
**Last updated:** [11 March 2020 21:10 UTC](https://discourse.nodered.org/t/dropdownlist-data-api/22829 "2020-03-11T21:10:02Z")

</div>

I want to get data from google API to Dropdownlist on new node. Can I use AJAX to call request and recieve data to my dropdownlist? If yes, how to I use it. Thank you~

---

## [Restore projects](https://discourse.nodered.org/t/restore-projects/22979)

<div class="topic-metadata">

**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 5\
**Last updated:** [11 March 2020 17:17 UTC](https://discourse.nodered.org/t/restore-projects/22979 "2020-03-11T17:17:24Z")

</div>

Hi, I just installed a new rpi 4b with a fresh copy of the latest node-red on the latest buster. I copied (filecopy) the project folders from my old rpi3b but thats not enough to get the new enviroment fully operation…

---

## [Tinkerforge Industrial Dual 0-20mA Bricklet read Data in NodeRed](https://discourse.nodered.org/t/tinkerforge-industrial-dual-0-20ma-bricklet-read-data-in-nodered/22922)

<div class="topic-metadata">

**Author:** [@Bix85](https://discourse.nodered.org/u/Bix85)\
**Replies:** 3\
**Last updated:** [11 March 2020 16:59 UTC](https://discourse.nodered.org/t/tinkerforge-industrial-dual-0-20ma-bricklet-read-data-in-nodered/22922 "2020-03-11T16:59:24Z")

</div>

Hi, I am a new user of Node Red and have not much experience with it. For a project I have a Raspberry Pi with NodeRed installation. Connected to the Pi is a Tinkerforge Masterbricklet that have 2 x Industrial Dual 0-…

---

## [Incorrect checksum tcp-client write](https://discourse.nodered.org/t/incorrect-checksum-tcp-client-write/22854)

<div class="topic-metadata">

**Author:** [@Petta](https://discourse.nodered.org/u/Petta)\
**Replies:** 1\
**Last updated:** [11 March 2020 15:46 UTC](https://discourse.nodered.org/t/incorrect-checksum-tcp-client-write/22854 "2020-03-11T15:46:58Z")

</div>

Hi. I have a piece of equipment that sends data and require me to respond with a single 'A' to ack the data and be able to recieve more data. I can send the 'A' triggerd by the incoming datastream but the other end doe…

---

## [Is it possible multi- dashboard?](https://discourse.nodered.org/t/is-it-possible-multi-dashboard/22981)

<div class="topic-metadata">

**Author:** [@VarunSavita](https://discourse.nodered.org/u/VarunSavita)\
**Replies:** 1\
**Last updated:** [11 March 2020 15:31 UTC](https://discourse.nodered.org/t/is-it-possible-multi-dashboard/22981 "2020-03-11T15:31:04Z")

</div>

I have installed node-red in a cloud. I have a project with a dashboard but I want to install multi-dashboard (project) with one node-red not need multi-user.

---

## [exchange mild temperature over time](https://discourse.nodered.org/t/exchange-mild-temperature-over-time/22967)

<div class="topic-metadata">

**Author:** [@AveryDawson](https://discourse.nodered.org/u/AveryDawson)\
**Replies:** 1\
**Last updated:** [11 March 2020 15:00 UTC](https://discourse.nodered.org/t/exchange-mild-temperature-over-time/22967 "2020-03-11T15:00:19Z")

</div>

even as i have built an impressive quantity of flows for my clever home, now's the time i want some more brains to assist me :slight\_smile: what i want: exchange the mild temperature of my dwelling room lighting from th…

---

## [I need to put timer to my project](https://discourse.nodered.org/t/i-need-to-put-timer-to-my-project/22959)

<div class="topic-metadata">

**Author:** [@zeromyname](https://discourse.nodered.org/u/zeromyname)\
**Replies:** 3\
**Last updated:** [11 March 2020 13:25 UTC](https://discourse.nodered.org/t/i-need-to-put-timer-to-my-project/22959 "2020-03-11T13:25:46Z")

</div>

Hello everyone, First, sorry for disturbing them. I got a Project with Raspberry Pi. We have 6 LED's and 3 Fan's. I have a 3 floors. i have to put 2 LED's and 1 Fan to one floor. I control them with Relay. but i have to…

---

## [checking characteristic of home assistant entity](https://discourse.nodered.org/t/checking-characteristic-of-home-assistant-entity/22969)

<div class="topic-metadata">

**Author:** [@MylesDawson](https://discourse.nodered.org/u/MylesDawson)\
**Replies:** 0\
**Last updated:** [11 March 2020 13:23 UTC](https://discourse.nodered.org/t/checking-characteristic-of-home-assistant-entity/22969 "2020-03-11T13:23:14Z")

</div>

i am seeking to installation an automation to manipulate the heating in my house. the regulations i need contain a whole lot of situations, so i am triggering from a five minute timer, checking the number of people home,…

---

## [Switch off relay](https://discourse.nodered.org/t/switch-off-relay/22957)

<div class="topic-metadata">

**Author:** [@Panos](https://discourse.nodered.org/u/Panos)\
**Replies:** 4\
**Last updated:** [11 March 2020 12:39 UTC](https://discourse.nodered.org/t/switch-off-relay/22957 "2020-03-11T12:39:44Z")

</div>

Any help would be appreciated. I am trying to set up a flow for heater control. I want the user to be able to switch on the heater, only when the temperature is bellow the set point and the heater to switch off when the …

---

## [PLC password nodered](https://discourse.nodered.org/t/plc-password-nodered/18545)

<div class="topic-metadata">

**Author:** [@pranavthakkar](https://discourse.nodered.org/u/pranavthakkar)\
**Replies:** 1\
**Last updated:** [11 March 2020 12:02 UTC](https://discourse.nodered.org/t/plc-password-nodered/18545 "2020-03-11T12:02:48Z")

</div>

Hi I have my siemens plc password protected now the s7 communication node is not getting the value from it how can i access it?

---

## [Node-red-contrib-tfjs-coco-ssd crashes NR on a Pi Zero W](https://discourse.nodered.org/t/node-red-contrib-tfjs-coco-ssd-crashes-nr-on-a-pi-zero-w/22947)

<div class="topic-metadata">

**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 5\
**Last updated:** [11 March 2020 09:39 UTC](https://discourse.nodered.org/t/node-red-contrib-tfjs-coco-ssd-crashes-nr-on-a-pi-zero-w/22947 "2020-03-11T09:39:33Z")

</div>

@dceejay I just installed this on a Pi Zero W and when I first deployed it crashes NR with 10 Mar 17:37:12 - \[info\] Stopped modified flows 10 Mar 17:37:12 - \[info\] Starting modified flows Illegal instruction after that…

---

## [Adding a USB serial port, getting started](https://discourse.nodered.org/t/adding-a-usb-serial-port-getting-started/22497)

<div class="topic-metadata">

**Author:** [@BigWillow](https://discourse.nodered.org/u/BigWillow)\
**Replies:** 7\
**Last updated:** [11 March 2020 08:48 UTC](https://discourse.nodered.org/t/adding-a-usb-serial-port-getting-started/22497 "2020-03-11T08:48:45Z")

</div>

Hi all. I would like to use the RS232 nodes on Node Red (to control a projector). I am a PC user, and when I add an USB\>RS232 adaptor, Windows scoots off and finds the drivers. So, being new to the Pi, does it need dr…

---

## [Contextmenu dynamic item change](https://discourse.nodered.org/t/contextmenu-dynamic-item-change/22954)

<div class="topic-metadata">

**Author:** [@greenembrace](https://discourse.nodered.org/u/greenembrace)\
**Replies:** 2\
**Last updated:** [11 March 2020 07:47 UTC](https://discourse.nodered.org/t/contextmenu-dynamic-item-change/22954 "2020-03-11T07:47:04Z")

</div>

Hi is there away to dynamically enable/disable a menu item or change the menu item text. I'm thinking "light switch" - two items: On and Off one is disabled but changes when the enabled one is selected. Or one item and t…

---

## [Install node-red-contrib-s7 with a recent version of node-red](https://discourse.nodered.org/t/install-node-red-contrib-s7-with-a-recent-version-of-node-red/213)

<div class="topic-metadata">

**Author:** [@Gerald\_10](https://discourse.nodered.org/u/Gerald_10)\
**Replies:** 5\
**Last updated:** [11 March 2020 06:31 UTC](https://discourse.nodered.org/t/install-node-red-contrib-s7-with-a-recent-version-of-node-red/213 "2020-03-11T06:31:23Z")

</div>

Hello, I am beginner and I would like to be able to communicate my IOT 2000 with a S7 1500. The version of Node-red that I currently have is V0.16.2 and I can not inst Here is what I will mainly like to do: 1) Update …

---

## [Does anyone know how to do Modbus tcp to Javascript conversions?](https://discourse.nodered.org/t/does-anyone-know-how-to-do-modbus-tcp-to-javascript-conversions/22902)

<div class="topic-metadata">

**Author:** [@Jude.Robise](https://discourse.nodered.org/u/Jude.Robise)\
**Replies:** 10\
**Last updated:** [11 March 2020 05:50 UTC](https://discourse.nodered.org/t/does-anyone-know-how-to-do-modbus-tcp-to-javascript-conversions/22902 "2020-03-11T05:50:03Z")

</div>

Hey all, I just wanna read floating point data from modbus tcp. Therefore I wanna convert modbus tcp all formats to Javascript using node red function node. Currently I can read only 32 bit float - little endian byte sw…

---

## [Error: I can't write data in my SPS with OPC-UA Client](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487)

<div class="topic-metadata">

**Author:** [@Jalal](https://discourse.nodered.org/u/Jalal)\
**Replies:** 1\
**Last updated:** [11 March 2020 03:45 UTC](https://discourse.nodered.org/t/error-i-cant-write-data-in-my-sps-with-opc-ua-client/21487 "2020-03-11T03:45:44Z")

</div>

Hi, i am new in this forum, i have a problem with OPC UA Client. I am using Raspberry Pi4 and the Packet node-red-contrib-opcua ist installed on my Node-red.My Problem ist that i can read Data from my S7 1500 PLC but i …

---

## [Subflow - extract value from json](https://discourse.nodered.org/t/subflow-extract-value-from-json/22932)

<div class="topic-metadata">

**Author:** [@AungKL](https://discourse.nodered.org/u/AungKL)\
**Replies:** 3\
**Last updated:** [11 March 2020 03:33 UTC](https://discourse.nodered.org/t/subflow-extract-value-from-json/22932 "2020-03-11T03:33:41Z")

</div>

Hello, I'm a beginner to node red. I'm trying to create subflow and its environment variables. I have problem with extracting value from json payload. The flow is as follow: \[{"id":"9b706329.bc293","type":"subflow","na…

---

## [How to extract values from an Object?](https://discourse.nodered.org/t/how-to-extract-values-from-an-object/22944)

<div class="topic-metadata">

**Author:** [@Golonder](https://discourse.nodered.org/u/Golonder)\
**Replies:** 3\
**Last updated:** [10 March 2020 23:03 UTC](https://discourse.nodered.org/t/how-to-extract-values-from-an-object/22944 "2020-03-10T23:03:54Z")

</div>

Could you please help me to find out how to get data from an object with variables with special signs ? msg.payload = msg.payload.SDS0X1."PM2.5"; msg.payload = msg.payload.SDS0X1.\[PM2.5\]; msg.payload = msg.payload.SDS0X…

---

## [Settings.js - question about "myDeviceName"](https://discourse.nodered.org/t/settings-js-question-about-mydevicename/22924)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 10\
**Last updated:** [10 March 2020 23:01 UTC](https://discourse.nodered.org/t/settings-js-question-about-mydevicename/22924 "2020-03-10T23:01:46Z")

</div>

Alas I am in the fun stage of re-building a machine. I set the computer's name in the settings.js file. Extract: functionGlobalContext: { // os:require('os'), // jfive:require("johnny-five"), …

---

## [RasPi NeoPixel problem](https://discourse.nodered.org/t/raspi-neopixel-problem/22950)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [10 March 2020 23:00 UTC](https://discourse.nodered.org/t/raspi-neopixel-problem/22950 "2020-03-10T23:00:06Z")

</div>

I probably deserve this, but it has me confused. I killed a machine the other night, and had to rebuild it. It isn't complicated for hardware, but I am getting a strange error. Setup - hardware: RasPi 3b Buster. Neo…

---

## [How to install node-red from scratch](https://discourse.nodered.org/t/how-to-install-node-red-from-scratch/22753)

<div class="topic-metadata">

**Author:** [@gbond](https://discourse.nodered.org/u/gbond)\
**Replies:** 42\
**Last updated:** [10 March 2020 22:06 UTC](https://discourse.nodered.org/t/how-to-install-node-red-from-scratch/22753 "2020-03-10T22:06:42Z")

</div>

please can someone give me a basic guide on the correct way to install node-red every time i create a new linux box (ubuntu,zorin etc) I then have rights issue get node-red and npm install from a new installation how s…

---

## [How to include git in a Node-RED Docker Instance](https://discourse.nodered.org/t/how-to-include-git-in-a-node-red-docker-instance/22896)

<div class="topic-metadata">

**Author:** [@fissionregalia](https://discourse.nodered.org/u/fissionregalia)\
**Replies:** 6\
**Last updated:** [10 March 2020 22:04 UTC](https://discourse.nodered.org/t/how-to-include-git-in-a-node-red-docker-instance/22896 "2020-03-10T22:04:25Z")

</div>

I'm trying to install node-red-contrib-smartthings node from @otaviojr but am running into some issues. I'm currently running node-red in docker via docker-compose and I can't seem to figure out how to add git after the…

[Previous page](https://discourse.nodered.org/latest.md?page=1139)

[Next page](https://discourse.nodered.org/latest.md?page=1141)