# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1318

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

**Page:** 1319

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## [Worldmap - display info above icon](https://discourse.nodered.org/t/worldmap-display-info-above-icon/7676)

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**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 12\
**Last updated:** [8 February 2019 07:13 UTC](https://discourse.nodered.org/t/worldmap-display-info-above-icon/7676 "2019-02-08T07:13:30Z")

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Looked at the Worldmap page and did a search on here (and Google).... Cant seem to find what I am looking to do.... I use Worldmap to plot the position of aircraft that my tracking system picks up. What I would like to…

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## [Error or bug with global get when undefined](https://discourse.nodered.org/t/error-or-bug-with-global-get-when-undefined/7711)

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**Author:** [@Lost](https://discourse.nodered.org/u/Lost)\
**Replies:** 14\
**Last updated:** [8 February 2019 00:16 UTC](https://discourse.nodered.org/t/error-or-bug-with-global-get-when-undefined/7711 "2019-02-08T00:16:50Z")

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Hi. When i am trying to get a global variable with function TotkWh = global.get("power.VK.gang.kWh.Total")||0; i get this error: function : (error) "TypeError: Cannot read property 'VK' of undefined" If i write it w…

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## [I have an error but can't figure out which node](https://discourse.nodered.org/t/i-have-an-error-but-cant-figure-out-which-node/7567)

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**Author:** [@Barabba11](https://discourse.nodered.org/u/Barabba11)\
**Replies:** 7\
**Last updated:** [7 February 2019 21:33 UTC](https://discourse.nodered.org/t/i-have-an-error-but-cant-figure-out-which-node/7567 "2019-02-07T21:33:03Z")

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Hi! I have the following error: 4/2/2019, 13:49:24node: a0019baf.2b4678 msg : error "Error: EBADF, Bad file descriptor" I can click on node: a0019baf.2b4678 but it doesn't select any node in the flow, so how can I gu…

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## [RSS Feed for new Flows](https://discourse.nodered.org/t/rss-feed-for-new-flows/7726)

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**Author:** [@trockenasche](https://discourse.nodered.org/u/trockenasche)\
**Replies:** 1\
**Last updated:** [7 February 2019 21:21 UTC](https://discourse.nodered.org/t/rss-feed-for-new-flows/7726 "2019-02-07T21:21:05Z")

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Hi everyone, I like to subscribe to the new node from https://flows.nodered.org via RSS. At the moment I using a Tweet-to-RSS service to get all updates for new nodes from https://twitter.com/red\_nodes. Any chance to se…

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## [NodeRed and ESP01 with Momentary Switch](https://discourse.nodered.org/t/nodered-and-esp01-with-momentary-switch/7723)

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**Author:** [@Hein](https://discourse.nodered.org/u/Hein)\
**Replies:** 1\
**Last updated:** [7 February 2019 19:13 UTC](https://discourse.nodered.org/t/nodered-and-esp01-with-momentary-switch/7723 "2019-02-07T19:13:00Z")

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Hi all, I\`m New to the forum but have used Node-RED for a while now. All my flows programs and everything works..... Except for one thing. I\`ve created a dashboard with a couple of light switches on it. The light swit…

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## [DashBoard :: Theme custom :: Make own theme?](https://discourse.nodered.org/t/dashboard-theme-custom-make-own-theme/7656)

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**Author:** [@YanK-fr](https://discourse.nodered.org/u/YanK-fr)\
**Replies:** 13\
**Last updated:** [7 February 2019 15:41 UTC](https://discourse.nodered.org/t/dashboard-theme-custom-make-own-theme/7656 "2019-02-07T15:41:16Z")

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Is it possible to make own theme for the dashboard ?

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## [Display Dashboard on Android device](https://discourse.nodered.org/t/display-dashboard-on-android-device/7701)

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**Author:** [@vidofi](https://discourse.nodered.org/u/vidofi)\
**Replies:** 0\
**Last updated:** [7 February 2019 11:51 UTC](https://discourse.nodered.org/t/display-dashboard-on-android-device/7701 "2019-02-07T11:51:18Z")

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Hi All, check this simple browser for display Node-RED Dashboard on your Android phone or tablet. You can store username and password, if you have password protected dashboard. It can show multiple dashboards too. It's…

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## [Switch node and Object message](https://discourse.nodered.org/t/switch-node-and-object-message/7706)

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**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\
**Replies:** 2\
**Last updated:** [7 February 2019 14:59 UTC](https://discourse.nodered.org/t/switch-node-and-object-message/7706 "2019-02-07T14:59:24Z")

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I forgot to introduce myself Hi all , i'm new with Node Red and JavaScript. i'm on a project with multi sensor in my home automation. I would like to make averages for sensor values. I saw this topic which corresponds t…

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## [Z-Wave get commands (for example get meter)](https://discourse.nodered.org/t/z-wave-get-commands-for-example-get-meter/7694)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 0\
**Last updated:** [7 February 2019 09:13 UTC](https://discourse.nodered.org/t/z-wave-get-commands-for-example-get-meter/7694 "2019-02-07T09:13:04Z")

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I installed oppen Z-wave and I can receive data from my multiswitch which also meassures Voltage, Power etc. In order to get this information on demand, I have to send a get meter command. For example: Meter Get Command…

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## [Node red and relational database (mysql)?](https://discourse.nodered.org/t/node-red-and-relational-database-mysql/6874)

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**Author:** [@Tefita](https://discourse.nodered.org/u/Tefita)\
**Replies:** 58\
**Last updated:** [7 February 2019 03:50 UTC](https://discourse.nodered.org/t/node-red-and-relational-database-mysql/6874 "2019-02-07T03:50:16Z")

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Greetings to all. I perform the registration of some data (name, surname, etc) and store them in a mysql table called patients, but this table is related to another named data and have the attribute idpacientes in the t…

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## [Switching between mqtt brokers](https://discourse.nodered.org/t/switching-between-mqtt-brokers/7672)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 3\
**Last updated:** [6 February 2019 22:37 UTC](https://discourse.nodered.org/t/switching-between-mqtt-brokers/7672 "2019-02-06T22:37:22Z")

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I'm working (on my laptop) on a project that uses a dozen or more mqtt nodes. When I'm at home I want them to connect to a broker on my home LAN, but on the road I want to use a broker on my laptop or a public broker. Is…

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## [Treeview UI in Node Red](https://discourse.nodered.org/t/treeview-ui-in-node-red/7673)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 0\
**Last updated:** [6 February 2019 21:37 UTC](https://discourse.nodered.org/t/treeview-ui-in-node-red/7673 "2019-02-06T21:37:17Z")

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I'm looking for a way to show a clickable Treeview within the Node Red UI Dashboard, if possible. The Treeview should take a JSON or JavaScript object and dynamically display the Tree with nodes that can expand/contract…

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## [Node-RED 0.20.0-beta.3 released](https://discourse.nodered.org/t/node-red-0-20-0-beta-3-released/6660)

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**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 25\
**Last updated:** [6 February 2019 20:46 UTC](https://discourse.nodered.org/t/node-red-0-20-0-beta-3-released/6660 "2019-02-06T20:46:47Z")

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We've just published the next beta release for 0.20. For the background on why we're doing betas, please read this post: https://discourse.nodered.org/t/node-red-0-20-0-beta-2-released/5573 The CHANGELOG has the full s…

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## [Missing Flow Showing as "Global nodes"](https://discourse.nodered.org/t/missing-flow-showing-as-global-nodes/7644)

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**Author:** [@texasterminator5](https://discourse.nodered.org/u/texasterminator5)\
**Replies:** 3\
**Last updated:** [6 February 2019 20:08 UTC](https://discourse.nodered.org/t/missing-flow-showing-as-global-nodes/7644 "2019-02-06T20:08:10Z")

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One of my flows is no longer showing in the tabs within Node-Red. I am unsure if I somehow moved the location or deleted it. The flow appears to be working still so I assume it is not gone. When I went into the flows …

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## [Switching hardware](https://discourse.nodered.org/t/switching-hardware/7621)

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**Author:** [@joyva](https://discourse.nodered.org/u/joyva)\
**Replies:** 5\
**Last updated:** [6 February 2019 17:01 UTC](https://discourse.nodered.org/t/switching-hardware/7621 "2019-02-06T17:01:18Z")

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Hi guys, I'm at the point where I'm going to install my home automation in my new home. I had planned to install an of the shelf system but now I'm convinced that node-red would be even better. The only problem I have i…

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## [How to update the iconColor of the worldmap location with a Switch?](https://discourse.nodered.org/t/how-to-update-the-iconcolor-of-the-worldmap-location-with-a-switch/7496)

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**Author:** [@emspe](https://discourse.nodered.org/u/emspe)\
**Replies:** 3\
**Last updated:** [6 February 2019 06:00 UTC](https://discourse.nodered.org/t/how-to-update-the-iconcolor-of-the-worldmap-location-with-a-switch/7496 "2019-02-06T06:00:22Z")

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Hello, I'm trying to change the pre-marked location iconColor with the input receiving via MQTT. All the relevant messages are receiving correctly to the correct locations which I have checked them using debug node. Bu…

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## [And another dashboard probelm with layout](https://discourse.nodered.org/t/and-another-dashboard-probelm-with-layout/7647)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [6 February 2019 11:01 UTC](https://discourse.nodered.org/t/and-another-dashboard-probelm-with-layout/7647 "2019-02-06T11:01:26Z")

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(This also has a bit of code in it which is also not seeming to be working for reasons explained below) I have got the ui\_LED node working. Alas it isn't that easy. :frowning: Here is a layout (series of pictures) o…

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## [Connection failed to broker](https://discourse.nodered.org/t/connection-failed-to-broker/7636)

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**Author:** [@MSJocke](https://discourse.nodered.org/u/MSJocke)\
**Replies:** 2\
**Last updated:** [6 February 2019 10:57 UTC](https://discourse.nodered.org/t/connection-failed-to-broker/7636 "2019-02-06T10:57:34Z")

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Hi, Im a noob to node-red, but pretty experienced in IOT, programming, etc. Im sure its a config issue, but I cant get NR to connect to the MQTT broker in the Hassio Pi. No matter what I input as server it keeps logging…

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## [ui\_LED, dashboard and error 401](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 43\
**Last updated:** [6 February 2019 09:14 UTC](https://discourse.nodered.org/t/ui-led-dashboard-and-error-401/7500 "2019-02-06T09:14:38Z")

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Ok, this is another thing which is not playing nice for me. Here is the list of packages I have installed: pi@TimePi:~/.node-red $ npm ls --depth=0 node-red-project@0.0.1 /home/pi/.node-red ├── node-red-contrib-advance…

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## [MQTT data synchronization](https://discourse.nodered.org/t/mqtt-data-synchronization/7603)

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**Author:** [@ellerre](https://discourse.nodered.org/u/ellerre)\
**Replies:** 13\
**Last updated:** [6 February 2019 05:40 UTC](https://discourse.nodered.org/t/mqtt-data-synchronization/7603 "2019-02-06T05:40:48Z")

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Hello everyone! I have a question: how can I synchronize the data of various sensors with mqtt? Imagine this scenario: 15 temperature sensors distributed in my home, which detect temperatures every 15 minutes. sensor …

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## [Dashboard has gone "nuts"](https://discourse.nodered.org/t/dashboard-has-gone-nuts/7608)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [6 February 2019 02:34 UTC](https://discourse.nodered.org/t/dashboard-has-gone-nuts/7608 "2019-02-06T02:34:30Z")

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While playing with an entirely different thing on the RPI, I went to the Dashboard. This is not right. There seems to be "empty lines" in the display. See attached. The big red rectangle. It isn't supposed to be th…

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## [Pass IP address into template node](https://discourse.nodered.org/t/pass-ip-address-into-template-node/7550)

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**Author:** [@janek](https://discourse.nodered.org/u/janek)\
**Replies:** 2\
**Last updated:** [6 February 2019 01:42 UTC](https://discourse.nodered.org/t/pass-ip-address-into-template-node/7550 "2019-02-06T01:42:38Z")

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Hi, To view video from uv4l on RPi, I have the following working code inside the template node: \<iframe id="VFrame" width="640" height="480" frameborder="0" src = "http://192.168.1.8:8080/stream"\>\</iframe\> Now I want…

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## [Discard stored context with ease](https://discourse.nodered.org/t/discard-stored-context-with-ease/2364)

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**Author:** [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Replies:** 2\
**Last updated:** [5 February 2019 17:40 UTC](https://discourse.nodered.org/t/discard-stored-context-with-ease/2364 "2019-02-05T17:40:14Z")

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It may happen that if you are experimenting with you flows and you use context storage you may find at one point that you have a lot of scrap data stored and you may want to just wipe all. With persistable context with …

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## [Project flakiness on macintosh](https://discourse.nodered.org/t/project-flakiness-on-macintosh/7493)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 7\
**Last updated:** [5 February 2019 17:08 UTC](https://discourse.nodered.org/t/project-flakiness-on-macintosh/7493 "2019-02-05T17:08:38Z")

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I have hesitated to ask about this issue because at first I it seemed hard to reproduce. It may also be platform specific, since it happens on my mac but not (apparently) on a Rpi. Recently, though, I have started shutti…

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## [Pubsub client and dashboard button problem](https://discourse.nodered.org/t/pubsub-client-and-dashboard-button-problem/7615)

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**Author:** [@yzerman](https://discourse.nodered.org/u/yzerman)\
**Replies:** 3\
**Last updated:** [5 February 2019 15:09 UTC](https://discourse.nodered.org/t/pubsub-client-and-dashboard-button-problem/7615 "2019-02-05T15:09:50Z")

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Hi, i have a problem with simple flow with mqtt and two buttons (on and off) I use pubsub client library and arduino. My goal is to turn on/off led connected to esp8266 via nod red dashboard. The problem is that in se…

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## [Not having any luck updating](https://discourse.nodered.org/t/not-having-any-luck-updating/7471)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 100\
**Last updated:** [5 February 2019 13:51 UTC](https://discourse.nodered.org/t/not-having-any-luck-updating/7471 "2019-02-05T13:51:39Z")

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This is getting very frustrating. I seem to be going in circles. RPI 2B. Raspberry Pi Model B Rev 2 PRETTY\_NAME="Raspbian GNU/Linux 9 (stretch)" NAME="Raspbian GNU/Linux" VERSION\_ID="9" VERSION="9 (stretch)" ID=raspb…

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## [Without Acess to the http](https://discourse.nodered.org/t/without-acess-to-the-http/7528)

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**Author:** [@stef](https://discourse.nodered.org/u/stef)\
**Replies:** 2\
**Last updated:** [5 February 2019 13:34 UTC](https://discourse.nodered.org/t/without-acess-to-the-http/7528 "2019-02-05T13:34:30Z")

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Hello, I am really new on the use of Node-red. I used another wifi to set the node-red on my raspberry pi, and right now that i am using my current wifi, i try to access the http but it is not working. Someone could p…

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## [Reusing msg object in Function requires cloning](https://discourse.nodered.org/t/reusing-msg-object-in-function-requires-cloning/7606)

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**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 6\
**Last updated:** [5 February 2019 12:29 UTC](https://discourse.nodered.org/t/reusing-msg-object-in-function-requires-cloning/7606 "2019-02-05T12:29:31Z")

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I know, it's a good practice to reuse the input msg in a function but in this case it can be painful to find out what is going on. If you reuse the msg in the following nodes, your first msg is also changed. Try this e…

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## [How to interact with a Siemens LOGO8](https://discourse.nodered.org/t/how-to-interact-with-a-siemens-logo8/5554)

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**Author:** [@Flixm](https://discourse.nodered.org/u/Flixm)\
**Replies:** 1\
**Last updated:** [5 February 2019 12:26 UTC](https://discourse.nodered.org/t/how-to-interact-with-a-siemens-logo8/5554 "2019-02-05T12:26:26Z")

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Hi, Actually i have a second program (LOGOControl) running to interact / control my Siemens LOGO 8 ... all at my RPi3. The problem is that the LOGOControl freezes when there are to many http rest requests. Now i´m tih…

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## [Argument --title missing in node-red-pi script](https://discourse.nodered.org/t/argument-title-missing-in-node-red-pi-script/7609)

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**Author:** [@kho](https://discourse.nodered.org/u/kho)\
**Replies:** 0\
**Last updated:** [5 February 2019 11:31 UTC](https://discourse.nodered.org/t/argument-title-missing-in-node-red-pi-script/7609 "2019-02-05T11:31:36Z")

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Hi During setup of two NR instances I've found an issue in the node-red-pi script. Here is what I've done so far to run 2 NR instances on one Raspi. I copied and renamed the service files like nodered1 and nodered2 Se…

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