# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=962

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

**Page:** 963

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## [How to call Node-red flow from Java](https://discourse.nodered.org/t/how-to-call-node-red-flow-from-java/1135)

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**Author:** [@somilkhandelwalwork](https://discourse.nodered.org/u/somilkhandelwalwork)\
**Replies:** 7\
**Last updated:** [28 June 2018 11:00 UTC](https://discourse.nodered.org/t/how-to-call-node-red-flow-from-java/1135 "2018-06-28T11:00:38Z")

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Do you guys have any idea about how to call Node-red particular flow from Java? Thanks for the help in advance!

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## [Setting up Project feature](https://discourse.nodered.org/t/setting-up-project-feature/1127)

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**Author:** [@hary](https://discourse.nodered.org/u/hary)\
**Replies:** 5\
**Last updated:** [28 June 2018 07:58 UTC](https://discourse.nodered.org/t/setting-up-project-feature/1127 "2018-06-28T07:58:25Z")

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I’d like setting up project feature but it doesn’t appear as it should. “history” tab doesn’t show up ! I modified my settings.js file like so, but not sure at all if it’s well done ! Node-RED version: v0.17.5 Node.js…

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## [IoT Hub Microsoft Azure Syntax](https://discourse.nodered.org/t/iot-hub-microsoft-azure-syntax/1121)

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**Author:** [@BowenWT](https://discourse.nodered.org/u/BowenWT)\
**Replies:** 8\
**Last updated:** [28 June 2018 07:57 UTC](https://discourse.nodered.org/t/iot-hub-microsoft-azure-syntax/1121 "2018-06-28T07:57:19Z")

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I am trying to get my data into my IoT Hub on Azure from a Modbus signal. My flow is as follows: \[{"id":"a40d774a.bf8648","type":"azureiothub","z":"53f246d7.f619f8","name":"Azure IoT Hub","protocol":"mqtt","x":780,"y":…

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## [Converting Modbus registers to ASCII string](https://discourse.nodered.org/t/converting-modbus-registers-to-ascii-string/1010)

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**Author:** [@arriflex](https://discourse.nodered.org/u/arriflex)\
**Replies:** 6\
**Last updated:** [28 June 2018 07:27 UTC](https://discourse.nodered.org/t/converting-modbus-registers-to-ascii-string/1010 "2018-06-28T07:27:12Z")

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I’m sure there must be an easy way to convert contiguous Modbus registers to a string since the debug window is showing me exactly what I want! Background: Using a Modbus-Flex-Getter to read 8 contiguous registers which …

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## [The LIBRARY where all the nodes are shown/listed](https://discourse.nodered.org/t/the-library-where-all-the-nodes-are-shown-listed/1133)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [28 June 2018 06:12 UTC](https://discourse.nodered.org/t/the-library-where-all-the-nodes-are-shown-listed/1133 "2018-06-28T06:12:57Z")

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Quick (dumb) question: At the site: https://flows.nodered.org/?num\_pages=1 There are 3 options for SORT BY: Recent Downloads Ratings. May I suggest a fourth: Alphabetical I know it sounds silly, but if you are …

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## [SOLVED: CSV Nodes Creates Triple Quotations](https://discourse.nodered.org/t/solved-csv-nodes-creates-triple-quotations/1112)

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**Author:** [@Coderkido](https://discourse.nodered.org/u/Coderkido)\
**Replies:** 6\
**Last updated:** [27 June 2018 23:20 UTC](https://discourse.nodered.org/t/solved-csv-nodes-creates-triple-quotations/1112 "2018-06-27T23:20:03Z")

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I need to store a value into CSV as “Value”, but when I add delimited quotations in a function node value, send through the csv node and store into a file, if I open the resulting file in Notepad I get “”“Value”"" but if…

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## [Function code Inside settings.js](https://discourse.nodered.org/t/function-code-inside-settings-js/841)

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**Author:** [@aco7342](https://discourse.nodered.org/u/aco7342)\
**Replies:** 2\
**Last updated:** [27 June 2018 22:23 UTC](https://discourse.nodered.org/t/function-code-inside-settings-js/841 "2018-06-27T22:23:05Z")

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Sorry for my poor english… I have a function created inside settings using promisses and i need return async msg. howto make work? PortaPinPad = (msg,os) =\> { return new Promise((resolve, reject) =\> { SerialPort.list…

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## [STRING node - stuck SOLVED! Sorry!](https://discourse.nodered.org/t/string-node-stuck-solved-sorry/1110)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [27 June 2018 22:12 UTC](https://discourse.nodered.org/t/string-node-stuck-solved-sorry/1110 "2018-06-27T22:12:58Z")

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Sorry folks. Seems the elephant is back in the room. This is the bare bones of what I am wanting to do: \[{"id":"77182547.31a85c","type":"string","z":"d52027c9.60c9f8","name":"","methods":\[{"name":"chompLeft","params":…

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## [My Node-red doesn't work any more after some changes](https://discourse.nodered.org/t/my-node-red-doesnt-work-any-more-after-some-changes/1126)

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**Author:** [@hary](https://discourse.nodered.org/u/hary)\
**Replies:** 5\
**Last updated:** [27 June 2018 20:17 UTC](https://discourse.nodered.org/t/my-node-red-doesnt-work-any-more-after-some-changes/1126 "2018-06-27T20:17:07Z")

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I changed something on my node-red and now I can’t get it working back again. I can’t remember what I changed that I didn’t change back to initial ! \[{"id":"48008912.e789","type":"inject","z":"aa8f5fa1.bc60d8","name":"…

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## [IoT Hub crashed Node-red](https://discourse.nodered.org/t/iot-hub-crashed-node-red/1123)

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**Author:** [@BowenWT](https://discourse.nodered.org/u/BowenWT)\
**Replies:** 4\
**Last updated:** [27 June 2018 15:19 UTC](https://discourse.nodered.org/t/iot-hub-crashed-node-red/1123 "2018-06-27T15:19:52Z")

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My server has now crashed from this flow: \[{"id":"beb2fc2f.9da3b","type":"tcp in","z":"53f246d7.f619f8","name":"","server":"client","host":"xxx","port":"xxx","datamode":"stream","datatype":"utf8","newline":"","topic":"W…

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## [Type Error "list" Argument must be an Array](https://discourse.nodered.org/t/type-error-list-argument-must-be-an-array/1094)

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**Author:** [@BowenWT](https://discourse.nodered.org/u/BowenWT)\
**Replies:** 9\
**Last updated:** [27 June 2018 14:32 UTC](https://discourse.nodered.org/t/type-error-list-argument-must-be-an-array/1094 "2018-06-27T14:32:14Z")

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Hi there, I applied a buffer in my node-red flow and have now encountered this problem in my CMD window, stopping the node-red server: 26 Jun 09:01:09 - TypeError: “list” argument must be an Array of Buffer or Uint8Arr…

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## [Uninstall Node-Red](https://discourse.nodered.org/t/uninstall-node-red/946)

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**Author:** [@youthtech](https://discourse.nodered.org/u/youthtech)\
**Replies:** 14\
**Last updated:** [27 June 2018 08:33 UTC](https://discourse.nodered.org/t/uninstall-node-red/946 "2018-06-27T08:33:03Z")

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Hi, I uninstall all the node red modules, I already uninstall node js and deleting node modules in my pc. when I reinstall it back, i did not get a new node red, the old one still in used and i could not remove the node…

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## [Nore-red and Web Sockets: How to check connection?](https://discourse.nodered.org/t/nore-red-and-web-sockets-how-to-check-connection/891)

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**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 3\
**Last updated:** [27 June 2018 06:37 UTC](https://discourse.nodered.org/t/nore-red-and-web-sockets-how-to-check-connection/891 "2018-06-27T06:37:43Z")

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Hi Nore-red people. I’m really excited from the possiblites node red has. I’m trying to have node-red controlling a program called WatchOut I’ve found a working javascript code and when I tried to migrate it to node-r…

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## [Giving wrong unix time back](https://discourse.nodered.org/t/giving-wrong-unix-time-back/1101)

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**Author:** [@YT2310](https://discourse.nodered.org/u/YT2310)\
**Replies:** 2\
**Last updated:** [27 June 2018 06:25 UTC](https://discourse.nodered.org/t/giving-wrong-unix-time-back/1101 "2018-06-27T06:25:25Z")

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hello, I got a Problem with the following flow \[{"id":"c83c9bc7.3128b","type":"inject","z":"f2b41c94.70381","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":180,"y":1480…

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## [Help needed for errors and behaviour not understood](https://discourse.nodered.org/t/help-needed-for-errors-and-behaviour-not-understood/1077)

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**Author:** [@hary](https://discourse.nodered.org/u/hary)\
**Replies:** 12\
**Last updated:** [26 June 2018 18:13 UTC](https://discourse.nodered.org/t/help-needed-for-errors-and-behaviour-not-understood/1077 "2018-06-26T18:13:38Z")

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I have this node: \[{"id":"6a0bb249.a7d50c","type":"serial in","z":"2788693.17e8d16","name":"","serial":"9939954d.414a","x":75,"y":110.00000762939453,"wires":\[\["ecfc3405.1f6968"\]\]},{"id":"e4698ad2.53ac","type":"debug","z…

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## [Urgent Help convert syslog to Json](https://discourse.nodered.org/t/urgent-help-convert-syslog-to-json/1081)

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**Author:** [@javier1991](https://discourse.nodered.org/u/javier1991)\
**Replies:** 6\
**Last updated:** [26 June 2018 17:57 UTC](https://discourse.nodered.org/t/urgent-help-convert-syslog-to-json/1081 "2018-06-26T17:57:24Z")

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hello i try to see a graffic of temperature recive for one equipment the problem is the equipment only send a syslog messaje it\`s posible convert the syslog string to a Json string? this is the messaje msg.payload : st…

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## [SQLite access in IBM's Bluemix](https://discourse.nodered.org/t/sqlite-access-in-ibms-bluemix/1102)

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**Author:** [@nagi123](https://discourse.nodered.org/u/nagi123)\
**Replies:** 0\
**Last updated:** [26 June 2018 14:22 UTC](https://discourse.nodered.org/t/sqlite-access-in-ibms-bluemix/1102 "2018-06-26T14:22:21Z")

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Is it possible that I can access my SQLite database in IBM’s node red? The database is hosted on Apache and its location is C:\\xampp\\htdocs\\ . I don’t have much experience with Apache, so please excuse me if I’m using t…

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## [Run node-red on raspbian wheezy](https://discourse.nodered.org/t/run-node-red-on-raspbian-wheezy/1095)

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**Author:** [@ThanosMel](https://discourse.nodered.org/u/ThanosMel)\
**Replies:** 8\
**Last updated:** [26 June 2018 13:30 UTC](https://discourse.nodered.org/t/run-node-red-on-raspbian-wheezy/1095 "2018-06-26T13:30:42Z")

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Is there a way to run node-red on raspbian wheezy. Is docker a good way to do that?

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## [Switch node with dynamic value](https://discourse.nodered.org/t/switch-node-with-dynamic-value/1092)

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**Author:** [@kamsvag](https://discourse.nodered.org/u/kamsvag)\
**Replies:** 1\
**Last updated:** [26 June 2018 07:26 UTC](https://discourse.nodered.org/t/switch-node-with-dynamic-value/1092 "2018-06-26T07:26:35Z")

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I have a switch node where I switch the msg to one path if the payload is below 20 and another path for ‘otherwise’. However, I want the value of ‘20’ be configurable through the ‘dashboard’ text node. Any ideas?

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## [Calling REST api](https://discourse.nodered.org/t/calling-rest-api/1089)

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**Author:** [@sampath6789](https://discourse.nodered.org/u/sampath6789)\
**Replies:** 4\
**Last updated:** [26 June 2018 06:30 UTC](https://discourse.nodered.org/t/calling-rest-api/1089 "2018-06-26T06:30:51Z")

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Hi. I want to know how to call a given rest api with a request body and get the response from node-red eg: header: Content-Type: application/json body: { “key1”:“value1”, “key2”:“value2” } Thank you.

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## [Single TCP client with send/receive](https://discourse.nodered.org/t/single-tcp-client-with-send-receive/847)

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**Author:** [@mlschuh](https://discourse.nodered.org/u/mlschuh)\
**Replies:** 4\
**Last updated:** [25 June 2018 22:19 UTC](https://discourse.nodered.org/t/single-tcp-client-with-send-receive/847 "2018-06-25T22:19:59Z")

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Hi there, I’m attempting to use the TCP nodes in a fairly mundane manner. I have a TCP server on an external device. I would like to connect to it, send it a message, be able to get the response, send another message, e…

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## [Send reapyt interval number from ui interface or variablia to inject node](https://discourse.nodered.org/t/send-reapyt-interval-number-from-ui-interface-or-variablia-to-inject-node/1079)

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**Author:** [@MarijusLinuksas](https://discourse.nodered.org/u/MarijusLinuksas)\
**Replies:** 2\
**Last updated:** [25 June 2018 21:04 UTC](https://discourse.nodered.org/t/send-reapyt-interval-number-from-ui-interface-or-variablia-to-inject-node/1079 "2018-06-25T21:04:29Z")

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I ned send rnumer to reapyt iterval from ui interface or variablia to inject node. How can i do that?

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## [Configurations lost after restart](https://discourse.nodered.org/t/configurations-lost-after-restart/1041)

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**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 4\
**Last updated:** [25 June 2018 21:14 UTC](https://discourse.nodered.org/t/configurations-lost-after-restart/1041 "2018-06-25T21:14:45Z")

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Good night Since some time ago I loss the configurations for telegram node (node bot key) and email node (user/pass). I’m running all latest versions of everything, curiously on telegram node the key appears empty howe…

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## [Reduce datapoints chart](https://discourse.nodered.org/t/reduce-datapoints-chart/1039)

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**Author:** [@edje11](https://discourse.nodered.org/u/edje11)\
**Replies:** 2\
**Last updated:** [25 June 2018 19:34 UTC](https://discourse.nodered.org/t/reduce-datapoints-chart/1039 "2018-06-25T19:34:11Z")

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I’m query a sqlite database to fill a chart on page load. This works all fine. However for the battery the chart is 1 month width and filling it with “sampled every 3 minutes” = 14400 point takes to long. It’s also not …

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## [Node-red-contrib-rfxcom not working after noder-red upgrade](https://discourse.nodered.org/t/node-red-contrib-rfxcom-not-working-after-noder-red-upgrade/1027)

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**Author:** [@lpt2007](https://discourse.nodered.org/u/lpt2007)\
**Replies:** 16\
**Last updated:** [25 June 2018 19:14 UTC](https://discourse.nodered.org/t/node-red-contrib-rfxcom-not-working-after-noder-red-upgrade/1027 "2018-06-25T19:14:32Z")

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Hi I have problem with node-red-contrib-rfxcom after node-red upgrade to version 0.1.12. I get error: Flows stopped due to missing node types. rfxtrx-port PT2262-device-list rfx-PT2262-in rfx-lights-in rfx-lights…

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## [Creating comma separated string from JSON data with template node](https://discourse.nodered.org/t/creating-comma-separated-string-from-json-data-with-template-node/1073)

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**Author:** [@fverschure](https://discourse.nodered.org/u/fverschure)\
**Replies:** 6\
**Last updated:** [25 June 2018 19:11 UTC](https://discourse.nodered.org/t/creating-comma-separated-string-from-json-data-with-template-node/1073 "2018-06-25T19:11:39Z")

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I am trying to create a comma separated string with the template node from a JSON object. I can get the comma's in, but these should not appear after the last item. I am using the code below in the template node: {{#…

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## [Is there any way to copy Tellstick-devices to another setup?](https://discourse.nodered.org/t/is-there-any-way-to-copy-tellstick-devices-to-another-setup/1052)

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**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\
**Replies:** 6\
**Last updated:** [25 June 2018 18:37 UTC](https://discourse.nodered.org/t/is-there-any-way-to-copy-tellstick-devices-to-another-setup/1052 "2018-06-25T18:37:31Z")

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Simple as that, or difficult as that. I have tried to copy the full node directory under /home/pi/.node-red/node\_modules/node-red-contrib-tellstick but that messed up permissions and I had to uninstall the node and reins…

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## [GPSlogger extract Lat and Lon to compare to GEOfence](https://discourse.nodered.org/t/gpslogger-extract-lat-and-lon-to-compare-to-geofence/1062)

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**Author:** [@hvddrift](https://discourse.nodered.org/u/hvddrift)\
**Replies:** 10\
**Last updated:** [25 June 2018 15:18 UTC](https://discourse.nodered.org/t/gpslogger-extract-lat-and-lon-to-compare-to-geofence/1062 "2018-06-25T15:18:31Z")

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I have reached my level of understanding. I believe I need a funcion to do this task, but I have no idea how to write it. Could someone please help with the below? NB: There may be a lot simpler way to achieve this… ht…

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## [Node-RED mqtt broker mosca secure tls connection issue](https://discourse.nodered.org/t/node-red-mqtt-broker-mosca-secure-tls-connection-issue/1019)

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**Author:** [@artem](https://discourse.nodered.org/u/artem)\
**Replies:** 7\
**Last updated:** [25 June 2018 14:25 UTC](https://discourse.nodered.org/t/node-red-mqtt-broker-mosca-secure-tls-connection-issue/1019 "2018-06-25T14:25:43Z")

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Hi, I have question about security connection between local server( node-red with mosca mqtt broker on rpi) and client(like mqtt-spy or mqtt.fx terminals). I generate ca certificate, keys and certificates for server and…

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## [Remote changes?](https://discourse.nodered.org/t/remote-changes/972)

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**Author:** [@Tim](https://discourse.nodered.org/u/Tim)\
**Replies:** 9\
**Last updated:** [24 June 2018 19:50 UTC](https://discourse.nodered.org/t/remote-changes/972 "2018-06-24T19:50:48Z")

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Is there any documentation about “remote changes”? In particular, how can I break the link so that cloning one board from another doesn’t automatically force merging on one when the other is changed? It is not reasonabl…

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