# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=801

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

**Page:** 802

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## [How best to edit/sync a file on Node red from an iPhone anywhere?](https://discourse.nodered.org/t/how-best-to-edit-sync-a-file-on-node-red-from-an-iphone-anywhere/21053)

<div class="topic-metadata">

**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 3\
**Last updated:** [30 January 2020 22:00 UTC](https://discourse.nodered.org/t/how-best-to-edit-sync-a-file-on-node-red-from-an-iphone-anywhere/21053 "2020-01-30T22:00:09Z")

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First, a little background. A long time ago, I rigged a little system using my Mac, my stereo, and a wemo motion sensor so that I could create motion-sensor-triggered spoken reminders during certain hours of certain days…

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## [Calc dewpoint from BME280](https://discourse.nodered.org/t/calc-dewpoint-from-bme280/21047)

<div class="topic-metadata">

**Author:** [@triphil](https://discourse.nodered.org/u/triphil)\
**Replies:** 3\
**Last updated:** [30 January 2020 21:49 UTC](https://discourse.nodered.org/t/calc-dewpoint-from-bme280/21047 "2020-01-30T21:49:34Z")

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with some help from the forum I am now quite happy with the output from my Wemos / Tasmota giving me data from the BME280. I have used global variables to store the temp and humidity so I can then calc the dew point in a…

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## [Serial port / dev / ttyUSB0](https://discourse.nodered.org/t/serial-port-dev-ttyusb0/20339)

<div class="topic-metadata">

**Author:** [@fabien](https://discourse.nodered.org/u/fabien)\
**Replies:** 5\
**Last updated:** [30 January 2020 19:11 UTC](https://discourse.nodered.org/t/serial-port-dev-ttyusb0/20339 "2020-01-30T19:11:24Z")

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serial port / dev / ttyUSB0 problem hello, i'm trying to wire two arduino on two ports / dev / ttyUSB0 and USB1. but when I change the parameters usb1 serial port to an output node, at the same time another input node …

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## [pH controller design](https://discourse.nodered.org/t/ph-controller-design/20918)

<div class="topic-metadata">

**Author:** [@ALOKA1432](https://discourse.nodered.org/u/ALOKA1432)\
**Replies:** 16\
**Last updated:** [30 January 2020 18:56 UTC](https://discourse.nodered.org/t/ph-controller-design/20918 "2020-01-30T18:56:38Z")

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Have anyone done pH controller using NodeRED ?

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## [Mqtt and ramp-thermostat](https://discourse.nodered.org/t/mqtt-and-ramp-thermostat/21014)

<div class="topic-metadata">

**Author:** [@theSushi](https://discourse.nodered.org/u/theSushi)\
**Replies:** 4\
**Last updated:** [30 January 2020 17:17 UTC](https://discourse.nodered.org/t/mqtt-and-ramp-thermostat/21014 "2020-01-30T17:17:34Z")

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i have problem with reading my mqtt send payload (temperature) but my thermostat doesnt recognize payload or idc i have no input normal i need output 1 or 0 \[{"id":"53fe1dfa.050d84","type":"mqtt in","z":"d8e8a97b.a836…

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## [NFL Sports Team Score Notifier](https://discourse.nodered.org/t/nfl-sports-team-score-notifier/21039)

<div class="topic-metadata">

**Author:** [@isomorphic85](https://discourse.nodered.org/u/isomorphic85)\
**Replies:** 2\
**Last updated:** [30 January 2020 16:24 UTC](https://discourse.nodered.org/t/nfl-sports-team-score-notifier/21039 "2020-01-30T16:24:24Z")

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I'm trying to come up with a way to possibly take an RSS feed of a particular NFL sports team and have that be the trigger for lighting up some LED's or turning on and off a relay. I'm struggling with where to get the a…

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## [Hexa to text node converter](https://discourse.nodered.org/t/hexa-to-text-node-converter/21034)

<div class="topic-metadata">

**Author:** [@chris35](https://discourse.nodered.org/u/chris35)\
**Replies:** 4\
**Last updated:** [30 January 2020 13:59 UTC](https://discourse.nodered.org/t/hexa-to-text-node-converter/21034 "2020-01-30T13:59:17Z")

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Hello , is there a node or a method to transform hex to text like this : Thanks Chris

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## [Node-red-contrib-openzwave after update failed](https://discourse.nodered.org/t/node-red-contrib-openzwave-after-update-failed/20907)

<div class="topic-metadata">

**Author:** [@Wolle](https://discourse.nodered.org/u/Wolle)\
**Replies:** 7\
**Last updated:** [30 January 2020 09:14 UTC](https://discourse.nodered.org/t/node-red-contrib-openzwave-after-update-failed/20907 "2020-01-30T09:14:52Z")

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Node-red is installed on an RaspberryPi 3+. All works fine, but after an update openzwave failed. So i tried to unistall it but i doesen't work. I get the message "openzwave-server is in Use". The nodes are gone. Must …

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## [MSSQL node to be windows authentication mode](https://discourse.nodered.org/t/mssql-node-to-be-windows-authentication-mode/21022)

<div class="topic-metadata">

**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 2\
**Last updated:** [30 January 2020 06:37 UTC](https://discourse.nodered.org/t/mssql-node-to-be-windows-authentication-mode/21022 "2020-01-30T06:37:49Z")

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Dear all, is it possible with node-contrib-mssql node to be connected to an SQL server via Windows Authentication Mode? What I want is to not give any user and password on the node, but rather is, it automatically use th…

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## [Niko Home Control 2 + Node-Red + Homekit + Openhab](https://discourse.nodered.org/t/niko-home-control-2-node-red-homekit-openhab/21012)

<div class="topic-metadata">

**Author:** [@geani](https://discourse.nodered.org/u/geani)\
**Replies:** 0\
**Last updated:** [29 January 2020 20:15 UTC](https://discourse.nodered.org/t/niko-home-control-2-node-red-homekit-openhab/21012 "2020-01-29T20:15:54Z")

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Hi Since Niko came up with their hobby-api for the home control system, I was able to get everything up and running with OpenHAB and the binding ( Niko Home Control II Bridge) But you can't do much with the bindings o…

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## [Zigbee2mqtt to Domoticz flow help](https://discourse.nodered.org/t/zigbee2mqtt-to-domoticz-flow-help/20453)

<div class="topic-metadata">

**Author:** [@gschmidt](https://discourse.nodered.org/u/gschmidt)\
**Replies:** 36\
**Last updated:** [29 January 2020 22:59 UTC](https://discourse.nodered.org/t/zigbee2mqtt-to-domoticz-flow-help/20453 "2020-01-29T22:59:05Z")

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Hi, (newbie in node-red) I have created a node-red flow from Domoticz/out to Zigbee2mqtt/in which does the following: When I turn on/off a virtual switch in Domoticz, a command is send to Zigbee2mqtt which sets a group…

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## [Ina3221 modules in node-red](https://discourse.nodered.org/t/ina3221-modules-in-node-red/21009)

<div class="topic-metadata">

**Author:** [@yoan](https://discourse.nodered.org/u/yoan)\
**Replies:** 2\
**Last updated:** [29 January 2020 21:57 UTC](https://discourse.nodered.org/t/ina3221-modules-in-node-red/21009 "2020-01-29T21:57:38Z")

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Hi, I am trying to install the ina3221 modules in my node-red, please can you help me with the procedure I able to found only ina219 modules and found this script in GitHub https://github.com/easybotics/node-red-con…

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## [Stuck in deploy](https://discourse.nodered.org/t/stuck-in-deploy/20969)

<div class="topic-metadata">

**Author:** [@theSushi](https://discourse.nodered.org/u/theSushi)\
**Replies:** 17\
**Last updated:** [29 January 2020 20:25 UTC](https://discourse.nodered.org/t/stuck-in-deploy/20969 "2020-01-29T20:25:15Z")

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hi guys i have problem i do deploy and now i cant connect to my node red... what i need to do i know what i am last do if is posible open i can easy remove thise node. ty and sorry for my eng edit: now i am looking on …

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## [Trying to get notifications of websites changes](https://discourse.nodered.org/t/trying-to-get-notifications-of-websites-changes/20700)

<div class="topic-metadata">

**Author:** [@rasprookie](https://discourse.nodered.org/u/rasprookie)\
**Replies:** 6\
**Last updated:** [29 January 2020 18:42 UTC](https://discourse.nodered.org/t/trying-to-get-notifications-of-websites-changes/20700 "2020-01-29T18:42:21Z")

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Hi, I'm a rookie, so be comprehensive :slight\_smile: What I'm trying to achieve is to have a list of websites regularly watched, and get email notifications of their changes, only when it changes. My questions are : …

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## [Programming / Language](https://discourse.nodered.org/t/programming-language/21005)

<div class="topic-metadata">

**Author:** [@kbrown](https://discourse.nodered.org/u/kbrown)\
**Replies:** 3\
**Last updated:** [29 January 2020 18:12 UTC](https://discourse.nodered.org/t/programming-language/21005 "2020-01-29T18:12:00Z")

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I'm sure this has been thrown up before, but I didn't see it: Is it suggested to learn Javascript - or any other programming language - before trying to utilize Node Red? I have some experience with vendor proprietary …

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## [Create configuration node instance from within different node](https://discourse.nodered.org/t/create-configuration-node-instance-from-within-different-node/21003)

<div class="topic-metadata">

**Author:** [@maxbachmann](https://discourse.nodered.org/u/maxbachmann)\
**Replies:** 0\
**Last updated:** [29 January 2020 17:05 UTC](https://discourse.nodered.org/t/create-configuration-node-instance-from-within-different-node/21003 "2020-01-29T17:05:05Z")

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I am currently working on nodes for one of my projects. All of them using a mqtt connection, so the idea was to have a common configuration node the way it is done in the build in mqtt node. However since the settings of…

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## [Send retarded data to InfluxDB](https://discourse.nodered.org/t/send-retarded-data-to-influxdb/20972)

<div class="topic-metadata">

**Author:** [@ardweb](https://discourse.nodered.org/u/ardweb)\
**Replies:** 6\
**Last updated:** [29 January 2020 16:34 UTC](https://discourse.nodered.org/t/send-retarded-data-to-influxdb/20972 "2020-01-29T16:34:14Z")

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Hi. I am using several mkr 1010 Arduinos connected to some sensors (mkr env Shield and seeedstudio grove sensors), and send the measured data (for example every 3 minutes), vía MQTT to a RPI with NodeRed, Grafana and I…

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## [Constructing Multiple Outputs](https://discourse.nodered.org/t/constructing-multiple-outputs/20988)

<div class="topic-metadata">

**Author:** [@lorccan](https://discourse.nodered.org/u/lorccan)\
**Replies:** 3\
**Last updated:** [29 January 2020 14:29 UTC](https://discourse.nodered.org/t/constructing-multiple-outputs/20988 "2020-01-29T14:29:11Z")

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I’m new here, so please excuse any inexact terminology. Input to a node with 3 outputs consists of an array: \[34, 35, 36\] matchVar = 35 Function iterates over the array. Where a match is found, the corresponding msg.p…

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## [No Correct Values from NEW Xiaomi Temp BLE](https://discourse.nodered.org/t/no-correct-values-from-new-xiaomi-temp-ble/20985)

<div class="topic-metadata">

**Author:** [@CLaTiX](https://discourse.nodered.org/u/CLaTiX)\
**Replies:** 0\
**Last updated:** [29 January 2020 07:13 UTC](https://discourse.nodered.org/t/no-correct-values-from-new-xiaomi-temp-ble/20985 "2020-01-29T07:13:08Z")

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Hello People, I got the new Xiaomi Temp Sensor with Bluetooth yesterdaybut i didn't get it running correctly. NEW Temp Sensor I run a Xiaomi FlowerCare with BLE and it's working fine but if i do the exact same on the T…

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## [Feeling like a fool.. can't remove errant node](https://discourse.nodered.org/t/feeling-like-a-fool-cant-remove-errant-node/20978)

<div class="topic-metadata">

**Author:** [@greenembrace](https://discourse.nodered.org/u/greenembrace)\
**Replies:** 2\
**Last updated:** [29 January 2020 02:39 UTC](https://discourse.nodered.org/t/feeling-like-a-fool-cant-remove-errant-node/20978 "2020-01-29T02:39:10Z")

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I admit it i should not have been playing in my live system, was doing a couple of things at once so not completely sure where the problem is. I'm unable to access the editor just blank, a spinner in the palette strip j…

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## [SDS011 PM sensor ](https://discourse.nodered.org/t/sds011-pm-sensor/20854)

<div class="topic-metadata">

**Author:** [@Niki](https://discourse.nodered.org/u/Niki)\
**Replies:** 9\
**Last updated:** [28 January 2020 23:46 UTC](https://discourse.nodered.org/t/sds011-pm-sensor/20854 "2020-01-28T23:46:16Z")

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Hi all Hopefully someone can help I’m a mechanical engineer so no use with node-red/programming great start I know however for a project I’m working on I’m desperate to get two SDS011 sensors up and running which will s…

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## [Node-red-contrib-openzwave-am](https://discourse.nodered.org/t/node-red-contrib-openzwave-am/19820)

<div class="topic-metadata">

**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 4\
**Last updated:** [4 January 2020 10:15 UTC](https://discourse.nodered.org/t/node-red-contrib-openzwave-am/19820 "2020-01-04T10:15:24Z")

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I am running node-red-contrib-openzwave-am and it works ok. Now I want to set parameters of z-wave components by using the full OpenZWave API. If I call requestAllConfigParams nothing happens. However getNodeStatistics …

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## [Convert a 16 bit integer to 16 discrete outputs](https://discourse.nodered.org/t/convert-a-16-bit-integer-to-16-discrete-outputs/20777)

<div class="topic-metadata">

**Author:** [@cdoctor](https://discourse.nodered.org/u/cdoctor)\
**Replies:** 19\
**Last updated:** [28 January 2020 19:25 UTC](https://discourse.nodered.org/t/convert-a-16-bit-integer-to-16-discrete-outputs/20777 "2020-01-28T19:25:34Z")

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Hi Everyone, I would like to create a function that can take a 16 bit integer, break out each bit and assign the value to the appropriate output. I'm using a loop that will run 16 times. It will check the value of each b…

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## [Html-pdf Node Error](https://discourse.nodered.org/t/html-pdf-node-error/3248)

<div class="topic-metadata">

**Author:** [@zacharyalan09](https://discourse.nodered.org/u/zacharyalan09)\
**Replies:** 17\
**Last updated:** [28 January 2020 18:52 UTC](https://discourse.nodered.org/t/html-pdf-node-error/3248 "2020-01-28T18:52:55Z")

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Hello - I'm getting the below error when trying to use the html-pdf node on a rasberry pi zero. When running the same flow on a windows machine I'm successful. I've looked around the internet and found a few folks havi…

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## [Basic function help](https://discourse.nodered.org/t/basic-function-help/20952)

<div class="topic-metadata">

**Author:** [@matisok](https://discourse.nodered.org/u/matisok)\
**Replies:** 6\
**Last updated:** [28 January 2020 16:50 UTC](https://discourse.nodered.org/t/basic-function-help/20952 "2020-01-28T16:50:27Z")

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Basic programming question (sorry) I am making a rpi-zero that glows a LED when there is a new mail. I am such a noob when it comes to coding (which is why I love node-red). But I need a basic function that does check…

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## [Transaction, Commit, Rollback, Mysql](https://discourse.nodered.org/t/transaction-commit-rollback-mysql/20828)

<div class="topic-metadata">

**Author:** [@glauberjnb](https://discourse.nodered.org/u/glauberjnb)\
**Replies:** 8\
**Last updated:** [28 January 2020 16:11 UTC](https://discourse.nodered.org/t/transaction-commit-rollback-mysql/20828 "2020-01-28T16:11:21Z")

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Hello, How can we use transaction control in mysql by Node-red

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## [Node Red running as a AWS Lambda function](https://discourse.nodered.org/t/node-red-running-as-a-aws-lambda-function/20929)

<div class="topic-metadata">

**Author:** [@Theos](https://discourse.nodered.org/u/Theos)\
**Replies:** 2\
**Last updated:** [28 January 2020 14:28 UTC](https://discourse.nodered.org/t/node-red-running-as-a-aws-lambda-function/20929 "2020-01-28T14:28:08Z")

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Is it possible to run a node red project as a AWS Lambda function? If it is, do you mind sharing information on how to set it up? Best regards.

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## [MySQL connection Error](https://discourse.nodered.org/t/mysql-connection-error/20953)

<div class="topic-metadata">

**Author:** [@Avipur](https://discourse.nodered.org/u/Avipur)\
**Replies:** 4\
**Last updated:** [28 January 2020 12:23 UTC](https://discourse.nodered.org/t/mysql-connection-error/20953 "2020-01-28T12:23:54Z")

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Hi All, I am beginner to Node Red . I am trying to connect MySQL database using "node-red-node-mysql" through a simple MySQL Query . I am getting following error Error: ER\_NOT\_SUPPORTED\_AUTH\_MODE: Client does not suppo…

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## [Help with trigger combination](https://discourse.nodered.org/t/help-with-trigger-combination/20914)

<div class="topic-metadata">

**Author:** [@fernmac](https://discourse.nodered.org/u/fernmac)\
**Replies:** 10\
**Last updated:** [28 January 2020 10:19 UTC](https://discourse.nodered.org/t/help-with-trigger-combination/20914 "2020-01-28T10:19:51Z")

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Hello, I am very new at node red. I have been using HA for a while now and since I am not a coder, it seems like a good alternative to yaml. Anyway, I already lost a few hours trying to do something, I guess, quite simp…

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## [Node Red crash Flow dissapeared please help](https://discourse.nodered.org/t/node-red-crash-flow-dissapeared-please-help/20946)

<div class="topic-metadata">

**Author:** [@AUsername](https://discourse.nodered.org/u/AUsername)\
**Replies:** 4\
**Last updated:** [28 January 2020 09:22 UTC](https://discourse.nodered.org/t/node-red-crash-flow-dissapeared-please-help/20946 "2020-01-28T09:22:40Z")

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Hi, I have a ubuntu virtual machine running node-red v1.0.3 (a local install) I have been working on a flow for 4 months now. last night the node-red web editor crashed just as I clicked deploy after i restarted the vir…

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