# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1336

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

**Page:** 1337

---

## [Message multiplexer in NR](https://discourse.nodered.org/t/message-multiplexer-in-nr/5833)

<div class="topic-metadata">

**Author:** [@igrowing](https://discourse.nodered.org/u/igrowing)\
**Replies:** 2\
**Last updated:** [15 December 2018 20:30 UTC](https://discourse.nodered.org/t/message-multiplexer-in-nr/5833 "2018-12-15T20:30:29Z")

</div>

Hi guys, Is there message multiplexer in Node-RED? Like a signal multiplexer in electronics: one type of messages can control flow of all other types of messages. Example: Control message has topic 'control'. 2 othe…

---

## [Flexible wireless logon, like espeasy on Arduino](https://discourse.nodered.org/t/flexible-wireless-logon-like-espeasy-on-arduino/5834)

<div class="topic-metadata">

**Author:** [@Noh](https://discourse.nodered.org/u/Noh)\
**Replies:** 0\
**Last updated:** [15 December 2018 19:27 UTC](https://discourse.nodered.org/t/flexible-wireless-logon-like-espeasy-on-arduino/5834 "2018-12-15T19:27:02Z")

</div>

I've recently used espeasy (firmware for an Arduino-like board with WiFi) and it has a great facility - if it can log-on to a wireless access point (AP), using saved credentials, it will. If it can't, it throws up its ow…

---

## [Serial port properties](https://discourse.nodered.org/t/serial-port-properties/949)

<div class="topic-metadata">

**Author:** [@Ruyal](https://discourse.nodered.org/u/Ruyal)\
**Replies:** 3\
**Last updated:** [21 June 2018 16:23 UTC](https://discourse.nodered.org/t/serial-port-properties/949 "2018-06-21T16:23:49Z")

</div>

Hi! I have a question about the Serial-node. I would like to make a button that changes between two different settings for a serial port. It will be using the same serial port, but with different settings, parity, stop…

---

## [Msg object and ui text input node](https://discourse.nodered.org/t/msg-object-and-ui-text-input-node/5821)

<div class="topic-metadata">

**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\
**Replies:** 2\
**Last updated:** [15 December 2018 13:59 UTC](https://discourse.nodered.org/t/msg-object-and-ui-text-input-node/5821 "2018-12-15T13:59:24Z")

</div>

I am sending a msg object to the ui\_text\_input mode. It seems as if the ui\_text\_input node destroys the message object. Is there a way to have it just update the payload and not disturb the rest of the msg object? I ha…

---

## [Displaying image from url in payload](https://discourse.nodered.org/t/displaying-image-from-url-in-payload/5171)

<div class="topic-metadata">

**Author:** [@patrolin](https://discourse.nodered.org/u/patrolin)\
**Replies:** 4\
**Last updated:** [15 December 2018 10:11 UTC](https://discourse.nodered.org/t/displaying-image-from-url-in-payload/5171 "2018-12-15T10:11:38Z")

</div>

so im trying to just display a jpeg still image from my ip camera, i can embed the image with just but i want to try use the http request node to request the image from the camera. if i use the http node to request it…

---

## [Is this possible: NR on laptop with arduino](https://discourse.nodered.org/t/is-this-possible-nr-on-laptop-with-arduino/5739)

<div class="topic-metadata">

**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 3\
**Last updated:** [15 December 2018 00:17 UTC](https://discourse.nodered.org/t/is-this-possible-nr-on-laptop-with-arduino/5739 "2018-12-15T00:17:18Z")

</div>

Hi, In case someone done this before or experience with this (could save me a lot of mucking around). Is it possible to install pi Debian (with NR) on a laptop; https://projects.raspberrypi.org/en/projects/install-ra…

---

## [Alexa Alarm clock](https://discourse.nodered.org/t/alexa-alarm-clock/5817)

<div class="topic-metadata">

**Author:** [@Gummix](https://discourse.nodered.org/u/Gummix)\
**Replies:** 0\
**Last updated:** [14 December 2018 22:37 UTC](https://discourse.nodered.org/t/alexa-alarm-clock/5817 "2018-12-14T22:37:49Z")

</div>

Hello, Is there a node that can read the alarm clock or is there a way to get the set Alarm to nodered? Thanks

---

## [Node red performance](https://discourse.nodered.org/t/node-red-performance/5788)

<div class="topic-metadata">

**Author:** [@rinzin](https://discourse.nodered.org/u/rinzin)\
**Replies:** 3\
**Last updated:** [14 December 2018 16:59 UTC](https://discourse.nodered.org/t/node-red-performance/5788 "2018-12-14T16:59:05Z")

</div>

Hello, I am new to node-red and I was wondering whether running a node-red HTTP server will be the same as running a nodejs server? what about the performance?

---

## [\[Solved \]Selecting an object in an array of objects with JSONata with incoming msg.payload](https://discourse.nodered.org/t/solved-selecting-an-object-in-an-array-of-objects-with-jsonata-with-incoming-msg-payload/5807)

<div class="topic-metadata">

**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 1\
**Last updated:** [14 December 2018 13:32 UTC](https://discourse.nodered.org/t/solved-selecting-an-object-in-an-array-of-objects-with-jsonata-with-incoming-msg-payload/5807 "2018-12-14T13:32:11Z")

</div>

I have this object / array in flowContext named dig2: {"registry": \[ { "Catid" : "Air-1a", "Name" : "Air", "ValueName" : "Humidity", "Loc" : "North Quad"}, { "thing\_id"…

---

## [Calling Internal Node Functions](https://discourse.nodered.org/t/calling-internal-node-functions/5669)

<div class="topic-metadata">

**Author:** [@jdiegosierra](https://discourse.nodered.org/u/jdiegosierra)\
**Replies:** 6\
**Last updated:** [14 December 2018 13:24 UTC](https://discourse.nodered.org/t/calling-internal-node-functions/5669 "2018-12-14T13:24:39Z")

</div>

Hi, is possible to add functions to nodes and calling it in the runtime? For example: module.exports = function(RED) { function SendSomethingNode(config) { RED.nodes.createNode(this,config); …

---

## [Split to different outputs](https://discourse.nodered.org/t/split-to-different-outputs/5773)

<div class="topic-metadata">

**Author:** [@dakure](https://discourse.nodered.org/u/dakure)\
**Replies:** 4\
**Last updated:** [14 December 2018 12:39 UTC](https://discourse.nodered.org/t/split-to-different-outputs/5773 "2018-12-14T12:39:05Z")

</div>

I am using a split node to tear apart a 8 bit binary number in string with fixed lenght of 1. Is there a way to split it in different outputs ? Is it possible to use the switch node outputs with the split node to separ…

---

## [Docker based GPS Tracker with mosquitto, node-red and zanzito](https://discourse.nodered.org/t/docker-based-gps-tracker-with-mosquitto-node-red-and-zanzito/5804)

<div class="topic-metadata">

**Author:** [@sloppy](https://discourse.nodered.org/u/sloppy)\
**Replies:** 0\
**Last updated:** [14 December 2018 12:24 UTC](https://discourse.nodered.org/t/docker-based-gps-tracker-with-mosquitto-node-red-and-zanzito/5804 "2018-12-14T12:24:25Z")

</div>

Hi, I wrote a blog post about setting up your own GPS tracking system with node-RED, Eclipse Mosquitto and Zanzito. Zanzito is an android app which sends sensor data of your smartphone to any message broker. I used node…

---

## [Node Red v0.19.5 modbus serial rs 485 can not be installed](https://discourse.nodered.org/t/node-red-v0-19-5-modbus-serial-rs-485-can-not-be-installed/5790)

<div class="topic-metadata">

**Author:** [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Replies:** 10\
**Last updated:** [14 December 2018 11:49 UTC](https://discourse.nodered.org/t/node-red-v0-19-5-modbus-serial-rs-485-can-not-be-installed/5790 "2018-12-14T11:49:10Z")

</div>

Hello After updating node red ı can not install again node red Modbus Serial Rs 485 again

---

## [Error on stop/restart](https://discourse.nodered.org/t/error-on-stop-restart/178)

<div class="topic-metadata">

**Author:** [@adam](https://discourse.nodered.org/u/adam)\
**Replies:** 18\
**Last updated:** [13 December 2018 08:23 UTC](https://discourse.nodered.org/t/error-on-stop-restart/178 "2018-12-13T08:23:43Z")

</div>

I’m getting the following error when stopping or restarting Node-RED: 15 May 07:10:00 - \[red\] Uncaught Exception: 15 May 07:10:00 - Error: write EPIPE at \_errnoException (util.js:1022:11) at WriteWrap.afterWrite…

---

## [UI dash board displayed just blank page](https://discourse.nodered.org/t/ui-dash-board-displayed-just-blank-page/5771)

<div class="topic-metadata">

**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 4\
**Last updated:** [14 December 2018 09:50 UTC](https://discourse.nodered.org/t/ui-dash-board-displayed-just-blank-page/5771 "2018-12-14T09:50:54Z")

</div>

Hi, No sure what I ve done, but the dashboard loads ok, but just shows a blank page no errors (localhost:1880/ui/) I am sure it worked before. Information below: Environment: HW Pi2 NR v0185 Dash ver: 2.12.1 Scre…

---

## [How to stop a flow tab from running](https://discourse.nodered.org/t/how-to-stop-a-flow-tab-from-running/5772)

<div class="topic-metadata">

**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 2\
**Last updated:** [14 December 2018 08:54 UTC](https://discourse.nodered.org/t/how-to-stop-a-flow-tab-from-running/5772 "2018-12-14T08:54:31Z")

</div>

Hi, May have been addressed before and may be a silly question, but how do you stop a flow tab? I notice that you can disable a flow tab but the flow still runs, just cannot edit the flow. so: Can we stop and start in…

---

## [Time in dashboard charts off](https://discourse.nodered.org/t/time-in-dashboard-charts-off/5792)

<div class="topic-metadata">

**Author:** [@tobiasselin](https://discourse.nodered.org/u/tobiasselin)\
**Replies:** 3\
**Last updated:** [14 December 2018 08:54 UTC](https://discourse.nodered.org/t/time-in-dashboard-charts-off/5792 "2018-12-14T08:54:01Z")

</div>

The x axis on my dashboard charts have recently started showing the wrong time is one hour behind. new Date() and the Node Red instance terminal give the correct time. Can someone explain why that is?

---

## [Amazon Echo Spot](https://discourse.nodered.org/t/amazon-echo-spot/3919)

<div class="topic-metadata">

**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\
**Replies:** 3\
**Last updated:** [14 December 2018 06:13 UTC](https://discourse.nodered.org/t/amazon-echo-spot/3919 "2018-12-14T06:13:23Z")

</div>

Can someone confirm that discovering local devices does not work with the Echo Spot? I tried alexa-local and alexa-home-skill - the setup works but the Spot does not discover my devices. I saw that the alexa-local docu…

---

## [Can't install / update nodes on v0.19.15](https://discourse.nodered.org/t/cant-install-update-nodes-on-v0-19-15/5778)

<div class="topic-metadata">

**Author:** [@rgerrans](https://discourse.nodered.org/u/rgerrans)\
**Replies:** 1\
**Last updated:** [14 December 2018 05:39 UTC](https://discourse.nodered.org/t/cant-install-update-nodes-on-v0-19-15/5778 "2018-12-14T05:39:32Z")

</div>

I updated to v0.19.15 last night using the raspberrypi script and when I went to update a node tonight I got the following error: npm ERR! code 128 npm ERR! Command failed: /usr/bin/git clone --depth=1 -q -b master git:…

---

## [How can I internet accces via proxy with node-red on Ubuntu](https://discourse.nodered.org/t/how-can-i-internet-accces-via-proxy-with-node-red-on-ubuntu/5742)

<div class="topic-metadata">

**Author:** [@K\_ueda](https://discourse.nodered.org/u/K_ueda)\
**Replies:** 3\
**Last updated:** [14 December 2018 04:37 UTC](https://discourse.nodered.org/t/how-can-i-internet-accces-via-proxy-with-node-red-on-ubuntu/5742 "2018-12-14T04:37:05Z")

</div>

【environment】 CentOS7(Linux 3.10.0-826.11.6.el7.x86\_64 x64 LE) Node-RED version: v0.18.7 Node.js version:v6.14.3 setting 【Proxy】 telnet myproxy.local.co.jp 8080 and confirmed it GET Yahoo! JAPAN I got HTM file 【…

---

## [Converting MQTT Payload to Dashbard gauge](https://discourse.nodered.org/t/converting-mqtt-payload-to-dashbard-gauge/5767)

<div class="topic-metadata">

**Author:** [@SteffenP](https://discourse.nodered.org/u/SteffenP)\
**Replies:** 2\
**Last updated:** [13 December 2018 22:02 UTC](https://discourse.nodered.org/t/converting-mqtt-payload-to-dashbard-gauge/5767 "2018-12-13T22:02:36Z")

</div>

Hi, my name is Steffen, and I am new to Node Red and this board. I am also not very used to this JSON stuff. Actually I am very blind. Maybe anyone can help me. I got an MQTT message payload string which looks like th…

---

## [What is this return character?](https://discourse.nodered.org/t/what-is-this-return-character/5768)

<div class="topic-metadata">

**Author:** [@dakure](https://discourse.nodered.org/u/dakure)\
**Replies:** 4\
**Last updated:** [13 December 2018 20:26 UTC](https://discourse.nodered.org/t/what-is-this-return-character/5768 "2018-12-13T20:26:24Z")

</div>

I am using a relay board of sequentmicrosystems wich work with commands. All the values this commands get have a return character (↵) after the expected value like you can see in the first debug of the attached image. …

---

## [Change DateTime format](https://discourse.nodered.org/t/change-datetime-format/5754)

<div class="topic-metadata">

**Author:** [@cabriopuma](https://discourse.nodered.org/u/cabriopuma)\
**Replies:** 11\
**Last updated:** [13 December 2018 20:03 UTC](https://discourse.nodered.org/t/change-datetime-format/5754 "2018-12-13T20:03:31Z")

</div>

Hi @ all, at the moment I'm coming not to the solution about that. How could I change the format 2018-12-13T07:03:00.000+0000 only to the time? (In that case to 07:03 or 7.30). Would be great for any kind of help.

---

## [Freezing on EC2](https://discourse.nodered.org/t/freezing-on-ec2/5765)

<div class="topic-metadata">

**Author:** [@paulwareham](https://discourse.nodered.org/u/paulwareham)\
**Replies:** 0\
**Last updated:** [13 December 2018 17:37 UTC](https://discourse.nodered.org/t/freezing-on-ec2/5765 "2018-12-13T17:37:47Z")

</div>

Hi Folks, I recently installed node-red on an Amazon EC2 instance. I have a flow which about a 15 nodes and have been testing it successfully. Howver it stops working seemingly randomly and the UI is no longer availab…

---

## [How to access to url '/' in http-in node](https://discourse.nodered.org/t/how-to-access-to-url-in-http-in-node/5762)

<div class="topic-metadata">

**Author:** [@Lionel](https://discourse.nodered.org/u/Lionel)\
**Replies:** 2\
**Last updated:** [13 December 2018 16:08 UTC](https://discourse.nodered.org/t/how-to-access-to-url-in-http-in-node/5762 "2018-12-13T16:08:18Z")

</div>

Hi, I am moving a project from NodeJs/Express to Node-Red. To do that, I use a http-in node as http endpoint, and I want to be able to access to the url '/' (in the node http-in), which is the url to access the UI. Is …

---

## [Raspberry PI Input problem](https://discourse.nodered.org/t/raspberry-pi-input-problem/5643)

<div class="topic-metadata">

**Author:** [@IvarMvl](https://discourse.nodered.org/u/IvarMvl)\
**Replies:** 9\
**Last updated:** [13 December 2018 14:33 UTC](https://discourse.nodered.org/t/raspberry-pi-input-problem/5643 "2018-12-13T14:33:01Z")

</div>

so i keep getting this error code ''GPIO pin 16 already set as type: input'' while trying to use a irl button to control a relay i dont know what they mean with this.

---

## [Headless Raspberry Pi](https://discourse.nodered.org/t/headless-raspberry-pi/5628)

<div class="topic-metadata">

**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 7\
**Last updated:** [13 December 2018 14:29 UTC](https://discourse.nodered.org/t/headless-raspberry-pi/5628 "2018-12-13T14:29:50Z")

</div>

I am getting ready to install Node-RED in a new Raspberry pi 3, using Raspbian Stretch Lite, that will run headless. At this time the SD card is ready with the image and nothing else has been installed (eg. Node.js). My…

---

## [What's your choice for MQTT clouds with dashboard?](https://discourse.nodered.org/t/whats-your-choice-for-mqtt-clouds-with-dashboard/5720)

<div class="topic-metadata">

**Author:** [@Tamazin96](https://discourse.nodered.org/u/Tamazin96)\
**Replies:** 4\
**Last updated:** [13 December 2018 09:07 UTC](https://discourse.nodered.org/t/whats-your-choice-for-mqtt-clouds-with-dashboard/5720 "2018-12-13T09:07:22Z")

</div>

Hey guys, I just wanted to know if anyone has experience with clouds that use MQTT and are node-red friendly but there's a catch. I want the cloud to have a dashboard that offers widgets like switches and gauges because …

---

## [Node-red on debian - libpcap/amazon dash](https://discourse.nodered.org/t/node-red-on-debian-libpcap-amazon-dash/5721)

<div class="topic-metadata">

**Author:** [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Replies:** 3\
**Last updated:** [13 December 2018 07:31 UTC](https://discourse.nodered.org/t/node-red-on-debian-libpcap-amazon-dash/5721 "2018-12-13T07:31:49Z")

</div>

hi guys, I have recently resurrected my old netbook (samsung nc10) and installed debian 9 on it. works great, good learning curve and NR works much faster than on raspi for example. So far I have managed to install most…

---

## [\[NEW FEATURE\] node-red-contrib-simple-gate (version 0.2.0)](https://discourse.nodered.org/t/new-feature-node-red-contrib-simple-gate-version-0-2-0/5730)

<div class="topic-metadata">

**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 1\
**Last updated:** [12 December 2018 22:12 UTC](https://discourse.nodered.org/t/new-feature-node-red-contrib-simple-gate-version-0-2-0/5730 "2018-12-12T22:12:02Z")

</div>

This update takes advantage of the persistent context feature introduced in Node-RED version 0.19. Previously, the node would enter the Default State on startup, either when first deployed in the editor, re-deployed as …

[Previous page](https://discourse.nodered.org/latest.md?page=1335)

[Next page](https://discourse.nodered.org/latest.md?page=1337)