# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=753

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

**Page:** 754

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## [Sqlite busyTimeout](https://discourse.nodered.org/t/sqlite-busytimeout/26186)

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**Author:** [@Petr](https://discourse.nodered.org/u/Petr)\
**Replies:** 0\
**Last updated:** [6 May 2020 17:55 UTC](https://discourse.nodered.org/t/sqlite-busytimeout/26186 "2020-05-06T17:55:19Z")

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Is there a way to set up the sqlite busyTimeout int the sqlite node? see: https://www.sqlite.org/c3ref/busy\_timeout.html The only info/option I have found is (and I really do not know if it is related to the busyTimeou…

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## [How to write the string array containing hex commands to serial out node without buffer on node v0.10.40/node-red v0.15.2](https://discourse.nodered.org/t/how-to-write-the-string-array-containing-hex-commands-to-serial-out-node-without-buffer-on-node-v0-10-40-node-red-v0-15-2/26150)

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**Author:** [@Waled22](https://discourse.nodered.org/u/Waled22)\
**Replies:** 10\
**Last updated:** [6 May 2020 15:17 UTC](https://discourse.nodered.org/t/how-to-write-the-string-array-containing-hex-commands-to-serial-out-node-without-buffer-on-node-v0-10-40-node-red-v0-15-2/26150 "2020-05-06T15:17:05Z")

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I need to write the string array of hex commands to the serial supported RS232 device, I am trying to send it using a buffer but it is not available in Node-Red version 0.10.40. Could anyone suggest me some possible ways…

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## [Cannot seem to start Node-RED Docker custom container](https://discourse.nodered.org/t/cannot-seem-to-start-node-red-docker-custom-container/26168)

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**Author:** [@nmsaini](https://discourse.nodered.org/u/nmsaini)\
**Replies:** 5\
**Last updated:** [6 May 2020 13:24 UTC](https://discourse.nodered.org/t/cannot-seem-to-start-node-red-docker-custom-container/26168 "2020-05-06T13:24:25Z")

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I need help with starting my container. I followed all the steps here https://nodered.org/docs/getting-started/docker to build my image. However, when I try to start/run the container it exits with the following error …

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## [Send 2 messages to 2 functions](https://discourse.nodered.org/t/send-2-messages-to-2-functions/26126)

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**Author:** [@fogmajor](https://discourse.nodered.org/u/fogmajor)\
**Replies:** 6\
**Last updated:** [6 May 2020 13:13 UTC](https://discourse.nodered.org/t/send-2-messages-to-2-functions/26126 "2020-05-06T13:13:49Z")

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Good morning I wonder if someone would be kind enough to point me in the right direction please. I have a flow that uses a function to decide on what action to carry out After it has run through the logic it creates a…

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## [Custom Node code](https://discourse.nodered.org/t/custom-node-code/248)

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**Author:** [@mtoko](https://discourse.nodered.org/u/mtoko)\
**Replies:** 27\
**Last updated:** [27 September 2019 16:34 UTC](https://discourse.nodered.org/t/custom-node-code/248 "2019-09-27T16:34:29Z")

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Hi I am working on a custom node and have been able to get this to work correctly in a function node on a flow. I have been able to make multiple copies of the function and change variables etc and all works fine as you…

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## [Connecting a sensor through open vpn to node red](https://discourse.nodered.org/t/connecting-a-sensor-through-open-vpn-to-node-red/26162)

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**Author:** [@kumarsemal](https://discourse.nodered.org/u/kumarsemal)\
**Replies:** 1\
**Last updated:** [6 May 2020 10:56 UTC](https://discourse.nodered.org/t/connecting-a-sensor-through-open-vpn-to-node-red/26162 "2020-05-06T10:56:56Z")

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Hello, I am new to Node Red. I want to connect two Level transmitters to Node red via internet over open vpn. The level transmitter output (4-20mA) is coming to a ethernet based data logger (modbus protocol) and finall…

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## [Does deploy stops currently running flows?](https://discourse.nodered.org/t/does-deploy-stops-currently-running-flows/26157)

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**Author:** [@mito](https://discourse.nodered.org/u/mito)\
**Replies:** 2\
**Last updated:** [6 May 2020 10:07 UTC](https://discourse.nodered.org/t/does-deploy-stops-currently-running-flows/26157 "2020-05-06T10:07:38Z")

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Does deploy stops currently running flows?

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## [Node-Red with OpenCV](https://discourse.nodered.org/t/node-red-with-opencv/26067)

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**Author:** [@Samith](https://discourse.nodered.org/u/Samith)\
**Replies:** 7\
**Last updated:** [6 May 2020 09:11 UTC](https://discourse.nodered.org/t/node-red-with-opencv/26067 "2020-05-06T09:11:10Z")

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Hi, Please can anyone tell me how to do basic image processing works(image crop, thresholding, adjust brightness, contrast) with node-red. I already connect my USB camera with RSP3 B and got the live video feed through n…

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## [Loop increment and decrement](https://discourse.nodered.org/t/loop-increment-and-decrement/25161)

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**Author:** [@mrizkywiguna](https://discourse.nodered.org/u/mrizkywiguna)\
**Replies:** 10\
**Last updated:** [6 May 2020 05:01 UTC](https://discourse.nodered.org/t/loop-increment-and-decrement/25161 "2020-05-06T05:01:25Z")

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Hi All, I create node to loop an auto increment then decrement. But my code didn't works. Here is my code: \[{"id":"f0e1fc36.bea","type":"debug","z":"d67945fe.28ff9","name":"","active":true,"tosidebar":true,"console":fa…

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## [How to control Tasmota-Devices via Node-Red and MQTT?](https://discourse.nodered.org/t/how-to-control-tasmota-devices-via-node-red-and-mqtt/26110)

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**Author:** [@Birdy](https://discourse.nodered.org/u/Birdy)\
**Replies:** 4\
**Last updated:** [6 May 2020 04:41 UTC](https://discourse.nodered.org/t/how-to-control-tasmota-devices-via-node-red-and-mqtt/26110 "2020-05-06T04:41:48Z")

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Hi all, I am running Node-Red on a Raspberry Pi together with my MQTT server. As a client I am using a Sonoff SP111 Power Plug flashed with Tasmota. I can easily connect and read data via MQTT from the Device. Unfortu…

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## [Trigger node bogus delay](https://discourse.nodered.org/t/trigger-node-bogus-delay/26069)

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**Author:** [@LosinIt](https://discourse.nodered.org/u/LosinIt)\
**Replies:** 47\
**Last updated:** [5 May 2020 22:07 UTC](https://discourse.nodered.org/t/trigger-node-bogus-delay/26069 "2020-05-05T22:07:21Z")

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This is my first real-world flow and I've already got an issue :roll\_eyes: The problem is that the trigger node delays the first message by 7 seconds instead of passing it through directly. It handles intervening message…

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## [Trigger a Variable after a time (based on a input value)](https://discourse.nodered.org/t/trigger-a-variable-after-a-time-based-on-a-input-value/25871)

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**Author:** [@good\_mike](https://discourse.nodered.org/u/good_mike)\
**Replies:** 10\
**Last updated:** [5 May 2020 19:21 UTC](https://discourse.nodered.org/t/trigger-a-variable-after-a-time-based-on-a-input-value/25871 "2020-05-05T19:21:37Z")

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Hello, I'm a complete newbie... I have some experience in IEC61131 (Beckhoff Twincat) but NodeRed is absolutely new for me. My installation runs on a Raspberry 3B. Here's what I want to realize: If the value of a var…

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## [Node Red HTTP Request](https://discourse.nodered.org/t/node-red-http-request/26139)

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**Author:** [@alexmanny](https://discourse.nodered.org/u/alexmanny)\
**Replies:** 8\
**Last updated:** [5 May 2020 16:31 UTC](https://discourse.nodered.org/t/node-red-http-request/26139 "2020-05-05T16:31:40Z")

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\[NOTE:\] Sorry I had to make http look like h.t.t.p.s because when I try to post the forum says (only 2 addresses allowed for new users in a post) Hi, super new to node red. I was wondering if there was a way to get a re…

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## [NORA second garage door not recognized](https://discourse.nodered.org/t/nora-second-garage-door-not-recognized/26135)

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**Author:** [@RadioFlyer](https://discourse.nodered.org/u/RadioFlyer)\
**Replies:** 2\
**Last updated:** [5 May 2020 14:55 UTC](https://discourse.nodered.org/t/nora-second-garage-door-not-recognized/26135 "2020-05-05T14:55:20Z")

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I just set up NORA in Node-RED. I have two identical flows for two garage doors differing only in the MQTT topic. Both doors, Door A and Door B, appear in the Google Home app. I can control Door A as expected being able…

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## [Connect website with node red](https://discourse.nodered.org/t/connect-website-with-node-red/26080)

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**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 7\
**Last updated:** [5 May 2020 14:09 UTC](https://discourse.nodered.org/t/connect-website-with-node-red/26080 "2020-05-05T14:09:53Z")

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How can i connect node red with a website. note: the website and node red will run independent. I want to use commands from the website to change rules for data output.

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## [Context Menu position](https://discourse.nodered.org/t/context-menu-position/23439)

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**Author:** [@greenembrace](https://discourse.nodered.org/u/greenembrace)\
**Replies:** 21\
**Last updated:** [5 May 2020 13:32 UTC](https://discourse.nodered.org/t/context-menu-position/23439 "2020-05-05T13:32:18Z")

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Hi, @BartButenaers I don't know if this is in my setup but if I open a context menu to close to the bottom of the canvas and it contains a number of entries the menu goes over the edge. If the menu is opened to far r…

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## [Message not being sent after Deploy](https://discourse.nodered.org/t/message-not-being-sent-after-deploy/26128)

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**Author:** [@Gontxu](https://discourse.nodered.org/u/Gontxu)\
**Replies:** 0\
**Last updated:** [5 May 2020 12:28 UTC](https://discourse.nodered.org/t/message-not-being-sent-after-deploy/26128 "2020-05-05T12:28:26Z")

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Hello, I've been looking around in the forum searching for this issue but did not found it. Hopefully someone can help me with this. I created a custom node that simply listens for an HTTP POST request and sends a messa…

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## [Trouble trying to create a day counter](https://discourse.nodered.org/t/trouble-trying-to-create-a-day-counter/26120)

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**Author:** [@Jez](https://discourse.nodered.org/u/Jez)\
**Replies:** 6\
**Last updated:** [5 May 2020 11:52 UTC](https://discourse.nodered.org/t/trouble-trying-to-create-a-day-counter/26120 "2020-05-05T11:52:52Z")

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Hi All, I'm trying to create a counter that counts the days from one position of the switch and a seperate count when the switch is in the other position, when i move the switch i would like the other counter to pause b…

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## [Using a credentials array](https://discourse.nodered.org/t/using-a-credentials-array/26084)

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**Author:** [@peret2000](https://discourse.nodered.org/u/peret2000)\
**Replies:** 2\
**Last updated:** [5 May 2020 08:44 UTC](https://discourse.nodered.org/t/using-a-credentials-array/26084 "2020-05-05T08:44:26Z")

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Hello, I am not seeing the way of using an array as credentials for a node. I am trying to create a node with a list of pairs user/password, with variable length, that must be stored in the credentials file. But I am …

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## [How to fill out pcf8574 cluster nodes?](https://discourse.nodered.org/t/how-to-fill-out-pcf8574-cluster-nodes/26119)

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**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 1\
**Last updated:** [5 May 2020 07:49 UTC](https://discourse.nodered.org/t/how-to-fill-out-pcf8574-cluster-nodes/26119 "2020-05-05T07:49:29Z")

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I don't understand how to fill out the cluster nodes and the clusterconfiguration. I read the node description but i don't understand it. I am using an pcf8574 extention board with the adress 0x01. Can someone give me…

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## [Errors with node-red-contrib-opcua](https://discourse.nodered.org/t/errors-with-node-red-contrib-opcua/26116)

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**Author:** [@pfetrial](https://discourse.nodered.org/u/pfetrial)\
**Replies:** 0\
**Last updated:** [5 May 2020 07:22 UTC](https://discourse.nodered.org/t/errors-with-node-red-contrib-opcua/26116 "2020-05-05T07:22:50Z")

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helo, i'm running node.js v12.16.3 and node-red V1.0.4 on windows 10. I have installed the node red for OPCua with admin rights. If I use node-red on a normal user session, when I read an Item on a opcua server ( write …

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## [Batch node 'weirdness' (or not!)](https://discourse.nodered.org/t/batch-node-weirdness-or-not/25869)

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**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 15\
**Last updated:** [5 May 2020 02:17 UTC](https://discourse.nodered.org/t/batch-node-weirdness-or-not/25869 "2020-05-05T02:17:12Z")

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Hi, I am seeing some 'weirdness' when using the Batch Node and think that this is due to my misunderstanding of how it functions. I have an array X elements long, I want to batch this up into groups of six so... Numbe…

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## [Node-red not starting](https://discourse.nodered.org/t/node-red-not-starting/26029)

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**Author:** [@filipejsbrandao](https://discourse.nodered.org/u/filipejsbrandao)\
**Replies:** 9\
**Last updated:** [4 May 2020 22:02 UTC](https://discourse.nodered.org/t/node-red-not-starting/26029 "2020-05-04T22:02:22Z")

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I have node-red running on a Pine64 for a few months, a few days ago I had to reboot the Pine64 and now node-red won't start again. Here is the console output after running node-red-start Welcome to Node-RED ==========…

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## [How to enable and disable the notification node using a button from the dashboard](https://discourse.nodered.org/t/how-to-enable-and-disable-the-notification-node-using-a-button-from-the-dashboard/26088)

<div class="topic-metadata">

**Author:** [@Joaovitor](https://discourse.nodered.org/u/Joaovitor)\
**Replies:** 3\
**Last updated:** [4 May 2020 22:00 UTC](https://discourse.nodered.org/t/how-to-enable-and-disable-the-notification-node-using-a-button-from-the-dashboard/26088 "2020-05-04T22:00:35Z")

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Hello everyone. I am developing an application through node red whose main objective is to read the information of sensors through the mqtt protocol. But anyway, I'll get straight to the point: I intend to implement a n…

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## [\[off-topic\]Paid for MQTT Broker](https://discourse.nodered.org/t/off-topic-paid-for-mqtt-broker/26025)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 8\
**Last updated:** [4 May 2020 19:00 UTC](https://discourse.nodered.org/t/off-topic-paid-for-mqtt-broker/26025 "2020-05-04T19:00:09Z")

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I've decided that securing my own cloud MQTT broker is not worth the struggle/too difficult for me so looking to put the money towards using a commercial one instead and wondering if anyone uses one themselves? Ideally,…

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## [Node red fails to start](https://discourse.nodered.org/t/node-red-fails-to-start/19858)

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**Author:** [@nat](https://discourse.nodered.org/u/nat)\
**Replies:** 5\
**Last updated:** [4 May 2020 18:32 UTC](https://discourse.nodered.org/t/node-red-fails-to-start/19858 "2020-05-04T18:32:37Z")

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Hi, After Installing libbluetooth-dev (npm install -g node-red-contrib-noble), and Bluez (npm install node-red-contrib-generic-ble) Node-red will no longer start. I have tried removeing them via, 'npm remove node-red…

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## [Merge eigth numbers in a function node | same order, everytime](https://discourse.nodered.org/t/merge-eigth-numbers-in-a-function-node-same-order-everytime/26051)

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**Author:** [@Kiwi\_gamer01](https://discourse.nodered.org/u/Kiwi_gamer01)\
**Replies:** 25\
**Last updated:** [4 May 2020 17:46 UTC](https://discourse.nodered.org/t/merge-eigth-numbers-in-a-function-node-same-order-everytime/26051 "2020-05-04T17:46:38Z")

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I don't know how to solve the following problem: I have two inputs in a function node, and would like to merge the two payloads of the inputs (do not take + or \*) so that if the first sends a 2 the second sends a 6 then…

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## [Tracking Node-Red issues in Windows](https://discourse.nodered.org/t/tracking-node-red-issues-in-windows/26047)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 2\
**Last updated:** [4 May 2020 16:43 UTC](https://discourse.nodered.org/t/tracking-node-red-issues-in-windows/26047 "2020-05-04T16:43:55Z")

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Hi Experts, I am running Node-Red in Windows. I followed the guide of installing and setting up the Task Scheduler and all seemed to have worked. But I noticed that after some time the server is just not working. I had …

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## [Node-red not deploying on IBM cloud](https://discourse.nodered.org/t/node-red-not-deploying-on-ibm-cloud/26064)

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**Author:** [@basfa](https://discourse.nodered.org/u/basfa)\
**Replies:** 6\
**Last updated:** [4 May 2020 15:22 UTC](https://discourse.nodered.org/t/node-red-not-deploying-on-ibm-cloud/26064 "2020-05-04T15:22:21Z")

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Hello, I have been trying to run a Node-red app on IBM cloud using the Node red start kit. At first, it worked for a couple of days then I started getting an error saying that the requested route does not exist. I trie…

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## [Any luck with free cloud hosted Node-Red?](https://discourse.nodered.org/t/any-luck-with-free-cloud-hosted-node-red/26045)

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**Author:** [@johnmoe](https://discourse.nodered.org/u/johnmoe)\
**Replies:** 2\
**Last updated:** [4 May 2020 15:16 UTC](https://discourse.nodered.org/t/any-luck-with-free-cloud-hosted-node-red/26045 "2020-05-04T15:16:11Z")

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Yesterday I tried to register for a few cloud providers which seemed to allow free node-red hosting but I can't seem to get any registration done properly. Anyone got lucky recently? IBM Cloud gives an error Your acco…

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