# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=959

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

**Page:** 960

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## [Raspberry Pi 3 B+June Raspbian Serial Port Node-RED](https://discourse.nodered.org/t/raspberry-pi-3-b-june-raspbian-serial-port-node-red/1521)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 8\
**Last updated:** [14 July 2018 22:20 UTC](https://discourse.nodered.org/t/raspberry-pi-3-b-june-raspbian-serial-port-node-red/1521 "2018-07-14T22:20:13Z")

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After a terrible couple of days updating Node and Node-Red - all working thanks to DJ... the serial port on the PI3 is not having it. I've turned off console use of serial, disabled BT and Pi user is part of the relevan…

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## [Modules deleting instead of updating](https://discourse.nodered.org/t/modules-deleting-instead-of-updating/1569)

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**Author:** [@Ceriain](https://discourse.nodered.org/u/Ceriain)\
**Replies:** 2\
**Last updated:** [14 July 2018 19:16 UTC](https://discourse.nodered.org/t/modules-deleting-instead-of-updating/1569 "2018-07-14T19:16:50Z")

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Hey all, Got a strange occurence with my Node-Red. As it says above, if I try to update a module in the Palette, instead of updating, it deletes the Module. On restarting Node-Red I get told all the node attached to the…

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## [MQTT input not connecting](https://discourse.nodered.org/t/mqtt-input-not-connecting/1558)

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**Author:** [@E.Strobel](https://discourse.nodered.org/u/E.Strobel)\
**Replies:** 18\
**Last updated:** [13 July 2018 19:59 UTC](https://discourse.nodered.org/t/mqtt-input-not-connecting/1558 "2018-07-13T19:59:10Z")

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I have been having an issue getting the MQTT input block to connect to my emonPi (raspberry pi system by openenergymonitor). When I connect to the emonPi via SSH through putty, I am able to view all of the MQTT messages.…

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## [Node Red in Docker loosing all flows every restart/reboot](https://discourse.nodered.org/t/node-red-in-docker-loosing-all-flows-every-restart-reboot/1402)

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**Author:** [@cnoork](https://discourse.nodered.org/u/cnoork)\
**Replies:** 5\
**Last updated:** [13 July 2018 15:43 UTC](https://discourse.nodered.org/t/node-red-in-docker-loosing-all-flows-every-restart-reboot/1402 "2018-07-13T15:43:48Z")

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I am running Node Red in docker on my Synology. It is working as I like only after restart the container or restart Synology all my flows are gone. I mount the /data to a volume on Synology. When I shutdown the container…

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## [Node-Red on hass.io](https://discourse.nodered.org/t/node-red-on-hass-io/1291)

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**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 14\
**Last updated:** [13 July 2018 14:25 UTC](https://discourse.nodered.org/t/node-red-on-hass-io/1291 "2018-07-13T14:25:32Z")

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After the better part of a week and frequent dead-ends, plus a few times banging my head against the wall because the Home Assistant documentation is written by and for Home Assistant experts, I finally can control a ZWa…

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## [Proxy whitelist for Managing node palette in Node-Red](https://discourse.nodered.org/t/proxy-whitelist-for-managing-node-palette-in-node-red/1547)

<div class="topic-metadata">

**Author:** [@BartD](https://discourse.nodered.org/u/BartD)\
**Replies:** 2\
**Last updated:** [13 July 2018 10:03 UTC](https://discourse.nodered.org/t/proxy-whitelist-for-managing-node-palette-in-node-red/1547 "2018-07-13T10:03:21Z")

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Recently our company proxy was changed. We can no longer add/update nodes in the palette with "Manage Palette". Which url's do we need to whitelist in the proxy to make it work?

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## [Website Source for node-red and arduino](https://discourse.nodered.org/t/website-source-for-node-red-and-arduino/1495)

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**Author:** [@youthtech](https://discourse.nodered.org/u/youthtech)\
**Replies:** 3\
**Last updated:** [12 July 2018 23:21 UTC](https://discourse.nodered.org/t/website-source-for-node-red-and-arduino/1495 "2018-07-12T23:21:34Z")

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Hi. I'm searching for sources that I can find for arduino and node red other than led blinking or shows sensor value or control firmata led Blinking/ servo motor. Is there any source that I could search in terms of contr…

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## [Installing node-red-node-sqlite gets 403 and then does a compile](https://discourse.nodered.org/t/installing-node-red-node-sqlite-gets-403-and-then-does-a-compile/1535)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 3\
**Last updated:** [12 July 2018 18:29 UTC](https://discourse.nodered.org/t/installing-node-red-node-sqlite-gets-403-and-then-does-a-compile/1535 "2018-07-12T18:29:32Z")

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It looks like SQLITE is not part of raspbian and if you try to install node-red-node-sqlite a 403 occurs and that causes a compile of sqlite. (see attached log). If you use sudo apt-get install sqlite sqllite3 they will…

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## [Grafana + InfluxDB + Node-Red](https://discourse.nodered.org/t/grafana-influxdb-node-red/1453)

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**Author:** [@Backup](https://discourse.nodered.org/u/Backup)\
**Replies:** 25\
**Last updated:** [12 July 2018 16:01 UTC](https://discourse.nodered.org/t/grafana-influxdb-node-red/1453 "2018-07-12T16:01:36Z")

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Is it possible to get values from this graph?

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## [Dowload a file using a button](https://discourse.nodered.org/t/dowload-a-file-using-a-button/1483)

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**Author:** [@gabrieldicieri](https://discourse.nodered.org/u/gabrieldicieri)\
**Replies:** 3\
**Last updated:** [12 July 2018 13:49 UTC](https://discourse.nodered.org/t/dowload-a-file-using-a-button/1483 "2018-07-12T13:49:34Z")

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I already have a file being written with some values ​​in my Public folder of raspberry(/home/pi/public), also I have set the static to (httpStatic: '/ home / pi / public') on settings.js, now I want to create a button s…

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## [Addig string to text field in sqlite](https://discourse.nodered.org/t/addig-string-to-text-field-in-sqlite/1487)

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**Author:** [@Andres](https://discourse.nodered.org/u/Andres)\
**Replies:** 2\
**Last updated:** [12 July 2018 12:20 UTC](https://discourse.nodered.org/t/addig-string-to-text-field-in-sqlite/1487 "2018-07-12T12:20:59Z")

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Hi everyone, i want to add data to a text field in sqlite, something like the following: UPDATE temp SET field = field + " - new data" WHERE field = "old data" what im expecting is to store "old data - new data", is th…

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## [What "TYPE" of data base do I need?](https://discourse.nodered.org/t/what-type-of-data-base-do-i-need/1405)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 33\
**Last updated:** [12 July 2018 11:47 UTC](https://discourse.nodered.org/t/what-type-of-data-base-do-i-need/1405 "2018-07-12T11:47:04Z")

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I am NEARLY there with parts of my flow in getting readings which I want to keep. The data will be simple stuff like Temperature, Humidity, CPU loads, CPU temps, stuff like that. I may time stamp them too. But for the…

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## [Node-red crashes with email node (IMAP)](https://discourse.nodered.org/t/node-red-crashes-with-email-node-imap/1489)

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**Author:** [@feltspar](https://discourse.nodered.org/u/feltspar)\
**Replies:** 16\
**Last updated:** [11 July 2018 21:11 UTC](https://discourse.nodered.org/t/node-red-crashes-with-email-node-imap/1489 "2018-07-11T21:11:01Z")

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0 down vote favorite I have a simple email node and debug-node set-up within a web application using node red. The email node has refresh time set to 5 seconds. and protocol IMAP. I have a gmail account logged in. No…

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## [Building and Using an IR Library for AV Integration](https://discourse.nodered.org/t/building-and-using-an-ir-library-for-av-integration/1450)

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**Author:** [@sarogersz](https://discourse.nodered.org/u/sarogersz)\
**Replies:** 11\
**Last updated:** [11 July 2018 20:46 UTC](https://discourse.nodered.org/t/building-and-using-an-ir-library-for-av-integration/1450 "2018-07-11T20:46:21Z")

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I have broken through on several fronts working with Global Cache devices, sending IR codes. Some hard won progress. Now I need to create appropriate structure for lots of various IR codes that need to be stored, and a…

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## [\[solved\] Function node \> editor \> tab width](https://discourse.nodered.org/t/solved-function-node-editor-tab-width/1512)

<div class="topic-metadata">

**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 0\
**Last updated:** [11 July 2018 13:26 UTC](https://discourse.nodered.org/t/solved-function-node-editor-tab-width/1512 "2018-07-11T13:26:35Z")

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Is it possible to set the tab width in the function node editor? I'd like to set it to 2 spaces.

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## [Why is my MQTT message getting filtered or altered?](https://discourse.nodered.org/t/why-is-my-mqtt-message-getting-filtered-or-altered/1442)

<div class="topic-metadata">

**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 8\
**Last updated:** [11 July 2018 12:45 UTC](https://discourse.nodered.org/t/why-is-my-mqtt-message-getting-filtered-or-altered/1442 "2018-07-11T12:45:07Z")

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I have Node-Red running on two Raspberry Pi3's. Pi#1 receives commands from Alexa Local and sends them to Pi#2 by MQTT. Problem: the MQTT message data is changing in the transmission from Pi#1 to Pi#2 This is what the…

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## [Get data from particle photon device cloud using the already existing nodes](https://discourse.nodered.org/t/get-data-from-particle-photon-device-cloud-using-the-already-existing-nodes/1505)

<div class="topic-metadata">

**Author:** [@BrunoAlfredo](https://discourse.nodered.org/u/BrunoAlfredo)\
**Replies:** 2\
**Last updated:** [11 July 2018 11:46 UTC](https://discourse.nodered.org/t/get-data-from-particle-photon-device-cloud-using-the-already-existing-nodes/1505 "2018-07-11T11:46:22Z")

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Hi! I am using the node-red-contrib-particle which makes available three nodes that allow the communication between the node-red and the particle device cloud. However, I have tried everyting to make this nodes run corre…

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## [Http in and "application/xml"](https://discourse.nodered.org/t/http-in-and-application-xml/1492)

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**Author:** [@tomasinouk](https://discourse.nodered.org/u/tomasinouk)\
**Replies:** 4\
**Last updated:** [11 July 2018 11:16 UTC](https://discourse.nodered.org/t/http-in-and-application-xml/1492 "2018-07-11T11:16:28Z")

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Hi guys, I am having a problem with "http-in" node as it does drops the content "body" of the request. I have a device sending a data in XML format, have configured "http-in" node for a POST and when i send JSON, form-d…

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## [httpStatic and image](https://discourse.nodered.org/t/httpstatic-and-image/1485)

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**Author:** [@sweetwater](https://discourse.nodered.org/u/sweetwater)\
**Replies:** 14\
**Last updated:** [11 July 2018 09:07 UTC](https://discourse.nodered.org/t/httpstatic-and-image/1485 "2018-07-11T09:07:32Z")

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Trying to store some images on the PI and then show the images using the html template. There was some mention of setting the 'httpStatic' to point to where the files will be stored. But I am having bit of problem of …

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## [How to use Node-red flows in a Angular Website](https://discourse.nodered.org/t/how-to-use-node-red-flows-in-a-angular-website/940)

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**Author:** [@StarShipTroopers](https://discourse.nodered.org/u/StarShipTroopers)\
**Replies:** 4\
**Last updated:** [11 July 2018 08:52 UTC](https://discourse.nodered.org/t/how-to-use-node-red-flows-in-a-angular-website/940 "2018-07-11T08:52:12Z")

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I already has a website built using angular. Is there any way to embed node-red flows in to the angular site or in the HTML?My objective is to create a button in the website which will consume/use the node-red flow to di…

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## [Node-red connect PLC to dashboard](https://discourse.nodered.org/t/node-red-connect-plc-to-dashboard/1473)

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**Author:** [@anggarabaihramsyah](https://discourse.nodered.org/u/anggarabaihramsyah)\
**Replies:** 13\
**Last updated:** [11 July 2018 02:21 UTC](https://discourse.nodered.org/t/node-red-connect-plc-to-dashboard/1473 "2018-07-11T02:21:28Z")

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Hi, i have project using Node-red to connect with PLC. i want take data from some address in PLC and show it to dashboard. i have problem, how to solve %MW100:X1 / %MW100:X2 of PLC with some variable?

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## [Another "Best Practices" question](https://discourse.nodered.org/t/another-best-practices-question/1486)

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**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 2\
**Last updated:** [10 July 2018 15:12 UTC](https://discourse.nodered.org/t/another-best-practices-question/1486 "2018-07-10T15:12:10Z")

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I currently have 16 flow tabs in Node-red that are grouped by common function. For example, I have in the "Downstairs Lights" flow, I control a few different lights: Is this a normal arrangement of flows, or should e…

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## [How do I publish a flow? (solved)](https://discourse.nodered.org/t/how-do-i-publish-a-flow-solved/1484)

<div class="topic-metadata">

**Author:** [@ncherry](https://discourse.nodered.org/u/ncherry)\
**Replies:** 2\
**Last updated:** [10 July 2018 13:36 UTC](https://discourse.nodered.org/t/how-do-i-publish-a-flow-solved/1484 "2018-07-10T13:36:25Z")

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Sorry, not sure where this would be appropriate. I'm going to announce my node - mytimeout (yes, terrible name) but I have an example flow that I'd like to publish to flows.nodered.org. I've seen a GitHubGist used and I…

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## [Pi GPIO input works on PiZeroW but on on Pi2](https://discourse.nodered.org/t/pi-gpio-input-works-on-pizerow-but-on-on-pi2/1376)

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**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 21\
**Last updated:** [9 July 2018 20:00 UTC](https://discourse.nodered.org/t/pi-gpio-input-works-on-pizerow-but-on-on-pi2/1376 "2018-07-09T20:00:12Z")

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I’ve done a simple flow to interface a PIR, its been working great on a PiZeroW for quite some time. Today I went to add the flow to a Pi2 system. I exported the flow on the PiZeroW and imported it into the Pi2. Probl…

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## [Node-RED API REST/PATCH](https://discourse.nodered.org/t/node-red-api-rest-patch/1280)

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**Author:** [@abrinded](https://discourse.nodered.org/u/abrinded)\
**Replies:** 2\
**Last updated:** [9 July 2018 18:37 UTC](https://discourse.nodered.org/t/node-red-api-rest-patch/1280 "2018-07-09T18:37:12Z")

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Hi All, Overview I’ve spoken briefly with Nick on the slack channel about an issue I’ve been having with making a PATCH request against a REST API using the ootb http node. I have got a simple flow, comprising of …

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## [IBM Cloud + Node-RED + Passport oAuth](https://discourse.nodered.org/t/ibm-cloud-node-red-passport-oauth/1467)

<div class="topic-metadata">

**Author:** [@anwarbashir](https://discourse.nodered.org/u/anwarbashir)\
**Replies:** 0\
**Last updated:** [9 July 2018 14:18 UTC](https://discourse.nodered.org/t/ibm-cloud-node-red-passport-oauth/1467 "2018-07-09T14:18:56Z")

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Hi, I am trying to figure out how to configure Node-RED on IBM Cloud. I have a instance with toolchain and connected to Passport. I am using this document https://console.bluemix.net/docs/services/Inversoft/index.html to…

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## [Is the documention right on node context?](https://discourse.nodered.org/t/is-the-documention-right-on-node-context/1463)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [9 July 2018 13:03 UTC](https://discourse.nodered.org/t/is-the-documention-right-on-node-context/1463 "2018-07-09T13:03:39Z")

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I'm writing a function node that needs to use the node context but on https://nodered.org/docs/creating-nodes/context it shows // Access the node's context object var context = this.context(); var count = context.get(…

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## [Error after selecting data from SQLITE](https://discourse.nodered.org/t/error-after-selecting-data-from-sqlite/1457)

<div class="topic-metadata">

**Author:** [@YT2310](https://discourse.nodered.org/u/YT2310)\
**Replies:** 5\
**Last updated:** [9 July 2018 10:12 UTC](https://discourse.nodered.org/t/error-after-selecting-data-from-sqlite/1457 "2018-07-09T10:12:05Z")

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Hello, as written in the Topic, i got a Little Problem with getting data from my SQLITE. after I trie to get the data from the databank, there is this error: \> 09.7.2018, 10:49:27node: Objekt für Stückzahlfunction : (…

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## [Alter ymax for ui\_chart](https://discourse.nodered.org/t/alter-ymax-for-ui-chart/1456)

<div class="topic-metadata">

**Author:** [@BeeryBen](https://discourse.nodered.org/u/BeeryBen)\
**Replies:** 2\
**Last updated:** [9 July 2018 07:55 UTC](https://discourse.nodered.org/t/alter-ymax-for-ui-chart/1456 "2018-07-09T07:55:36Z")

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Hi - I've used someones example to change the ymax but I can't get it working. Can someone point me in the right direction? This is what I've go so far. Any help is much appreciated. \[{"id":"9762fcb0.8b494","type":"ui\_b…

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## [Error to Install Node Home Assistant](https://discourse.nodered.org/t/error-to-install-node-home-assistant/1443)

<div class="topic-metadata">

**Author:** [@dedynobre](https://discourse.nodered.org/u/dedynobre)\
**Replies:** 8\
**Last updated:** [9 July 2018 06:58 UTC](https://discourse.nodered.org/t/error-to-install-node-home-assistant/1443 "2018-07-09T06:58:09Z")

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HI, I'm trying to install node-red-contrib-home-assistant and it has the following error: pi@raspberrypi:~ $ sudo npm install node-red-contrib-home-assistant npm ERR! code 128 npm ERR! Command failed: /usr/bin/git cl…

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