# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=864

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

**Page:** 865

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## [Raspbian Buster - Node red install script failure](https://discourse.nodered.org/t/raspbian-buster-node-red-install-script-failure/13528)

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**Author:** [@fil](https://discourse.nodered.org/u/fil)\
**Replies:** 2\
**Last updated:** [23 July 2019 11:52 UTC](https://discourse.nodered.org/t/raspbian-buster-node-red-install-script-failure/13528 "2019-07-23T11:52:52Z")

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with the latest raspbian buster image following an initial config and sudo apt-get update/upgrade I attempted to use the bash curl script from the docs page to install.. This failed at the Node/js install and according …

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## [DHT11 librery wouldn't be instaled i don't knew why](https://discourse.nodered.org/t/dht11-librery-wouldnt-be-instaled-i-dont-knew-why/13600)

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**Author:** [@omar](https://discourse.nodered.org/u/omar)\
**Replies:** 19\
**Last updated:** [23 July 2019 11:10 UTC](https://discourse.nodered.org/t/dht11-librery-wouldnt-be-instaled-i-dont-knew-why/13600 "2019-07-23T11:10:08Z")

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DHT11 librery wouldn't be instaled i don't knew why

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## [Add values from MQTT](https://discourse.nodered.org/t/add-values-from-mqtt/12974)

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**Author:** [@crd](https://discourse.nodered.org/u/crd)\
**Replies:** 2\
**Last updated:** [23 July 2019 10:08 UTC](https://discourse.nodered.org/t/add-values-from-mqtt/12974 "2019-07-23T10:08:48Z")

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Hi, I want to do some calculations with the values i receive from MQTT. The "convert functions" converts the string, coming from the MQTT, to a number. msg.payload = Number(msg.payload); return msg; What i want to…

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## [Number to Boolean Conversion](https://discourse.nodered.org/t/number-to-boolean-conversion/13548)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 14\
**Last updated:** [23 July 2019 10:02 UTC](https://discourse.nodered.org/t/number-to-boolean-conversion/13548 "2019-07-23T10:02:52Z")

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I would make conduction flow with boolean AND block. How can i do for number to bool coversion.

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## [Dashboard remote access](https://discourse.nodered.org/t/dashboard-remote-access/13594)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 1\
**Last updated:** [23 July 2019 09:49 UTC](https://discourse.nodered.org/t/dashboard-remote-access/13594 "2019-07-23T09:49:40Z")

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Hello all I would like more information how i could implement a remote acess to a node red dashboard session? a) setting up a DNS service and remote acess throu port forward? b) send the MQTT data to a cloud? Any exe…

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## [Dual list selection dialog for Node configuration](https://discourse.nodered.org/t/dual-list-selection-dialog-for-node-configuration/13571)

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**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 1\
**Last updated:** [23 July 2019 08:16 UTC](https://discourse.nodered.org/t/dual-list-selection-dialog-for-node-configuration/13571 "2019-07-23T08:16:01Z")

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In a node type I need to provide field-name from a table (and eventual some that don't exist yet). Something like: Is there an example somewhere how to "expand" a "line item" in a nodeRED node configuration dialogue i…

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## [Node - Red For Loop](https://discourse.nodered.org/t/node-red-for-loop/13589)

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**Author:** [@niko](https://discourse.nodered.org/u/niko)\
**Replies:** 2\
**Last updated:** [23 July 2019 08:10 UTC](https://discourse.nodered.org/t/node-red-for-loop/13589 "2019-07-23T08:10:09Z")

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Can anyone see what mistake ive made in my for loop code, I want to display the 20 different beacons but at my output instead of getting the list of 20 beacons i am getting the last beacon spread out over 20 different ou…

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## [Reread the Flows file when I refreshed the page](https://discourse.nodered.org/t/reread-the-flows-file-when-i-refreshed-the-page/13536)

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**Author:** [@TomY](https://discourse.nodered.org/u/TomY)\
**Replies:** 8\
**Last updated:** [23 July 2019 05:19 UTC](https://discourse.nodered.org/t/reread-the-flows-file-when-i-refreshed-the-page/13536 "2019-07-23T05:19:43Z")

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Hi Guys！ I just started learning node-red recently. I want to modify the parameters in the Flows file in the background while the Node-RED is running, and when the page of browser is refreshed I can see the update on t…

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## [Syntax to use node Oracle](https://discourse.nodered.org/t/syntax-to-use-node-oracle/13513)

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**Author:** [@nico](https://discourse.nodered.org/u/nico)\
**Replies:** 3\
**Last updated:** [22 July 2019 10:45 UTC](https://discourse.nodered.org/t/syntax-to-use-node-oracle/13513 "2019-07-22T10:45:24Z")

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hello, Can you explain or show me how to use, (the right syntax), the node oracle db. The connection to the base it's ok, but i can't write or retrieve nothing. thanks Nico

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## [RPz(W), Wireless connection - more/new information](https://discourse.nodered.org/t/rpz-w-wireless-connection-more-new-information/13524)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 9\
**Last updated:** [22 July 2019 23:39 UTC](https://discourse.nodered.org/t/rpz-w-wireless-connection-more-new-information/13524 "2019-07-22T23:39:02Z")

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I know I have mentioned it before, but I now have new data and it has been a while since that thread was used. Here is a clean start on the problem with more up to date information. I have a RPz(W) connected to my rout…

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## [Installed node-red-contrib-cip-ehternet-ip but getting error](https://discourse.nodered.org/t/installed-node-red-contrib-cip-ehternet-ip-but-getting-error/13574)

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**Author:** [@gmahule](https://discourse.nodered.org/u/gmahule)\
**Replies:** 1\
**Last updated:** [22 July 2019 22:00 UTC](https://discourse.nodered.org/t/installed-node-red-contrib-cip-ehternet-ip-but-getting-error/13574 "2019-07-22T22:00:30Z")

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I am trying to connect with allen bradley PLCs but unable to connect with my PLCs. I have configured everything but still getting error "Error connecting to PLC: Error: TIMEOUT occurred while reading Controller Props". C…

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## [WAY OFF TOPIC - any RPI wifi gurus here?](https://discourse.nodered.org/t/way-off-topic-any-rpi-wifi-gurus-here/13526)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 17\
**Last updated:** [22 July 2019 21:35 UTC](https://discourse.nodered.org/t/way-off-topic-any-rpi-wifi-gurus-here/13526 "2019-07-22T21:35:11Z")

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I have a PI running Stretch. It has a WiFi dongle and works/worked as a WAP. Recently I updated it (sudo apt update sudo apt upgrade) It was working. But it got power rebooted and the WAP stopped working. I have bee…

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## [Xiaomi gateway and node red](https://discourse.nodered.org/t/xiaomi-gateway-and-node-red/13484)

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**Author:** [@pawel256](https://discourse.nodered.org/u/pawel256)\
**Replies:** 19\
**Last updated:** [22 July 2019 19:01 UTC](https://discourse.nodered.org/t/xiaomi-gateway-and-node-red/13484 "2019-07-22T19:01:09Z")

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I read this tutorial https://notenoughtech.com/home-automation/nodered-home-automation/xiaomi-gateway-in-nodered/ and try to connect to xiaomi gateway I have ip, key, port etc, but I can't connect

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## [Run on windows as service](https://discourse.nodered.org/t/run-on-windows-as-service/13569)

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**Author:** [@mannirivera72](https://discourse.nodered.org/u/mannirivera72)\
**Replies:** 1\
**Last updated:** [22 July 2019 18:24 UTC](https://discourse.nodered.org/t/run-on-windows-as-service/13569 "2019-07-22T18:24:09Z")

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Hi, I have created a node-red application that works together with an Opto 22 controller to monitor alarms. I installed the app on the computer used on the company where it is going to be working. But sometimes operator…

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## [Systems Variable for functionName?](https://discourse.nodered.org/t/systems-variable-for-functionname/13551)

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**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 4\
**Last updated:** [22 July 2019 17:24 UTC](https://discourse.nodered.org/t/systems-variable-for-functionname/13551 "2019-07-22T17:24:25Z")

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Is there a systems variable with which to read the function name from which it was called? (in a function).. ?

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## [MSSQL node-red-contrib-mssql-plus behavior](https://discourse.nodered.org/t/mssql-node-red-contrib-mssql-plus-behavior/7340)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 11\
**Last updated:** [22 July 2019 17:20 UTC](https://discourse.nodered.org/t/mssql-node-red-contrib-mssql-plus-behavior/7340 "2019-07-22T17:20:32Z")

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"node-red-contrib-mssql-plus", I thought was working fine until I upgraded to NR 20.0-beta.3. But I'm not sure if the 20.0-beta.3 is the problem. It's not exactly not working, but giving me an error when I click a button…

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## [Functionnode: If loop with time](https://discourse.nodered.org/t/functionnode-if-loop-with-time/13546)

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**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 6\
**Last updated:** [22 July 2019 14:36 UTC](https://discourse.nodered.org/t/functionnode-if-loop-with-time/13546 "2019-07-22T14:36:05Z")

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I have written this function that if the value x for a certain time (Time1) is higher than the value y. All values ​​are numbers. After I'm not familiar with javascript I do not know why the if loop with the counter doe…

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## [Msg.string\[14\] Error circular](https://discourse.nodered.org/t/msg-string-14-error-circular/13539)

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**Author:** [@davidcgu](https://discourse.nodered.org/u/davidcgu)\
**Replies:** 11\
**Last updated:** [22 July 2019 13:53 UTC](https://discourse.nodered.org/t/msg-string-14-error-circular/13539 "2019-07-22T13:53:59Z")

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Good morning Guys How can I catch up to understand where is coming from the following error? I tried to disable tab and select only debug current flow but anything changes, I have same error at any tab I'm. Thanks i…

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## [\[Solved\] Jsonata in a change node: Can you use a msg variable for an array index?](https://discourse.nodered.org/t/solved-jsonata-in-a-change-node-can-you-use-a-msg-variable-for-an-array-index/13529)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 6\
**Last updated:** [22 July 2019 11:41 UTC](https://discourse.nodered.org/t/solved-jsonata-in-a-change-node-can-you-use-a-msg-variable-for-an-array-index/13529 "2019-07-22T11:41:41Z")

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I know I can do this in a function node, but I want to figure out how do do this in a change node with jsonata. Here is the msg: {"payload":0, "socketid":"g7R4DAwyPG3jLyHKAACQ", "\_msgid":"2c51e9cf.94bd06", "path":"/U…

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## [How to send data to excel](https://discourse.nodered.org/t/how-to-send-data-to-excel/13465)

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**Author:** [@adamf](https://discourse.nodered.org/u/adamf)\
**Replies:** 14\
**Last updated:** [22 July 2019 11:33 UTC](https://discourse.nodered.org/t/how-to-send-data-to-excel/13465 "2019-07-22T11:33:00Z")

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Hi, I am trying to send data of wireless temperature and humidity sensor to excel. I have created nodes here I have used here function node and file node to save data. but i am unable to get data in excel. pleas…

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## [SERIAL input node issue!](https://discourse.nodered.org/t/serial-input-node-issue/13454)

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**Author:** [@georgethomas08](https://discourse.nodered.org/u/georgethomas08)\
**Replies:** 8\
**Last updated:** [22 July 2019 11:23 UTC](https://discourse.nodered.org/t/serial-input-node-issue/13454 "2019-07-22T11:23:21Z")

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Hi , I was using serial input and output node, everything was working fine but after some point serial input node is not working at all in raspberry pi 3 b+, I reinstalled to rasbian OS and node-red server, still its n…

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## [UI - Text Node with a function node](https://discourse.nodered.org/t/ui-text-node-with-a-function-node/13532)

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**Author:** [@niko](https://discourse.nodered.org/u/niko)\
**Replies:** 2\
**Last updated:** [22 July 2019 08:57 UTC](https://discourse.nodered.org/t/ui-text-node-with-a-function-node/13532 "2019-07-22T08:57:31Z")

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Hello there I am very new to node-red and programming in general i was wondering if there was a way to write a function before a UI - Text Node that would display the message if there was a reading but to not display any…

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## [Read file in from iCloud](https://discourse.nodered.org/t/read-file-in-from-icloud/13525)

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**Author:** [@gavraq](https://discourse.nodered.org/u/gavraq)\
**Replies:** 3\
**Last updated:** [21 July 2019 21:42 UTC](https://discourse.nodered.org/t/read-file-in-from-icloud/13525 "2019-07-21T21:42:46Z")

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Hi I would like to read a file using the file in node, but the file is stored on my iCloud drive. How do I configure the file in node (ie the format for the Filename path) to point to the file location on iCloud. Than…

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## [Looking for the cron-like node/flow](https://discourse.nodered.org/t/looking-for-the-cron-like-node-flow/13495)

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**Author:** [@ded\_banzai](https://discourse.nodered.org/u/ded_banzai)\
**Replies:** 5\
**Last updated:** [21 July 2019 15:44 UTC](https://discourse.nodered.org/t/looking-for-the-cron-like-node-flow/13495 "2019-07-21T15:44:46Z")

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Hi! I am looking for the cron-like node. I need to send messages using editable playlist which works similar way as the crontab file. For example (pseudo code): 19/07/19 21:00 {"topic":"topic1, "payload":"payload1"} 1…

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## [Syslog filled with "(node:##) TimeoutOverflowWarning: ########## does not fit into a 32-bit signed integer"](https://discourse.nodered.org/t/syslog-filled-with-node-timeoutoverflowwarning-does-not-fit-into-a-32-bit-signed-integer/11966)

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**Author:** [@Jesse305](https://discourse.nodered.org/u/Jesse305)\
**Replies:** 15\
**Last updated:** [21 July 2019 14:58 UTC](https://discourse.nodered.org/t/syslog-filled-with-node-timeoutoverflowwarning-does-not-fit-into-a-32-bit-signed-integer/11966 "2019-07-21T14:58:49Z")

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Hello, My syslog is being filled with variations of the following error messages (this is just a short excerpt): (node:1215) TimeoutOverflowWarning: 2587711790 does not fit into a 32-bit signed integer. Timeout durat…

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## [Migrating from 0.17.5 - asking for trouble?](https://discourse.nodered.org/t/migrating-from-0-17-5-asking-for-trouble/12905)

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**Author:** [@realsquash](https://discourse.nodered.org/u/realsquash)\
**Replies:** 11\
**Last updated:** [21 July 2019 13:46 UTC](https://discourse.nodered.org/t/migrating-from-0-17-5-asking-for-trouble/12905 "2019-07-21T13:46:12Z")

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I have NR 17.5 with UIBuilder that has been running a long time on a Pi 3B. I've avoided upgrading it because it was stable and ran great. Now I have a Pi 4B and need to get everything going on a fresh install of Buste…

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## [Delete unused nodes](https://discourse.nodered.org/t/delete-unused-nodes/13508)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 9\
**Last updated:** [21 July 2019 11:50 UTC](https://discourse.nodered.org/t/delete-unused-nodes/13508 "2019-07-21T11:50:20Z")

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Hi, I deleted nodes from my flow and from configuration nodes I deleted all unused nodes but when I deploying I get this message. How can I find or delete unused nodes. Thank you

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## [Installing NR/Node on a new Pi](https://discourse.nodered.org/t/installing-nr-node-on-a-new-pi/13503)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 8\
**Last updated:** [20 July 2019 23:14 UTC](https://discourse.nodered.org/t/installing-nr-node-on-a-new-pi/13503 "2019-07-20T23:14:27Z")

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Hi I'm busy doing yet another NR install and.. Some comments on Node-Red install on Raspberry Pi (Stretch or Buster - RPI4 but most likely 2, 3 or 4) I’ve been meaning to make for some time.. When installing nodes, a…

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## [Split Dht11 data from.python script](https://discourse.nodered.org/t/split-dht11-data-from-python-script/13507)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 2\
**Last updated:** [20 July 2019 22:02 UTC](https://discourse.nodered.org/t/split-dht11-data-from-python-script/13507 "2019-07-20T22:02:09Z")

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Hi I need help. I want to display data in UI as gauges. How do I split them? Thank you

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## [Flow works in one lineup, but not in others](https://discourse.nodered.org/t/flow-works-in-one-lineup-but-not-in-others/11018)

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**Author:** [@factorina](https://discourse.nodered.org/u/factorina)\
**Replies:** 8\
**Last updated:** [20 July 2019 20:46 UTC](https://discourse.nodered.org/t/flow-works-in-one-lineup-but-not-in-others/11018 "2019-07-20T20:46:51Z")

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Newbie here. Love Node-RED, lots of success so far but this (seemingly) simple issue has me stumped. I am using the 'cast' node from here https://github.com/Hypnos3/node-red-contrib-cast and I have the demo code up an…

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