# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=697

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

**Page:** 698

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## [Separate the properties of a payload so i can send each individual values to another device](https://discourse.nodered.org/t/separate-the-properties-of-a-payload-so-i-can-send-each-individual-values-to-another-device/31619)

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**Author:** [@Maxking](https://discourse.nodered.org/u/Maxking)\
**Replies:** 2\
**Last updated:** [16 August 2020 22:15 UTC](https://discourse.nodered.org/t/separate-the-properties-of-a-payload-so-i-can-send-each-individual-values-to-another-device/31619 "2020-08-16T22:15:39Z")

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Hi, I am a newbie here, sorry but we all have to start somewhere :slight\_smile: Anyway I am not a newbie with BMS (Building Management Systems) also know as BEMS (Building Energy Management Systems). The BMS control I …

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## [Extract value (number) from node red payload?](https://discourse.nodered.org/t/extract-value-number-from-node-red-payload/31627)

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**Author:** [@icanic](https://discourse.nodered.org/u/icanic)\
**Replies:** 1\
**Last updated:** [16 August 2020 22:11 UTC](https://discourse.nodered.org/t/extract-value-number-from-node-red-payload/31627 "2020-08-16T22:11:12Z")

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Greetings! I have problems with my Shelly dimmer 2. I have set it up over mqtt. Everything works great except dimming slider value. Dimming slider works great when I am using it, but I wan't that slider pick up the valu…

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## [Handover of session id - HTTP Request](https://discourse.nodered.org/t/handover-of-session-id-http-request/31620)

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**Author:** [@RaiRoo](https://discourse.nodered.org/u/RaiRoo)\
**Replies:** 2\
**Last updated:** [16 August 2020 20:36 UTC](https://discourse.nodered.org/t/handover-of-session-id-http-request/31620 "2020-08-16T20:36:17Z")

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Hello everybody, I am new at node-red and would like to access the information of a password protected web application. I already managed successfully to login the application with the HTTP GET method. Now I think I nee…

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## [MSSQL node-red installation problem](https://discourse.nodered.org/t/mssql-node-red-installation-problem/29695)

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**Author:** [@Earl](https://discourse.nodered.org/u/Earl)\
**Replies:** 15\
**Last updated:** [16 August 2020 19:46 UTC](https://discourse.nodered.org/t/mssql-node-red-installation-problem/29695 "2020-08-16T19:46:29Z")

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Hello, just wanna ask; is the node-red-contrib-mssql still usable? I saw that its last update was more than 3 years ago, and it fails when I tried installing it. Or maybe there's another problem that keeps me from instal…

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## [Plot and button on uibuilder](https://discourse.nodered.org/t/plot-and-button-on-uibuilder/31581)

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**Author:** [@lalo](https://discourse.nodered.org/u/lalo)\
**Replies:** 5\
**Last updated:** [16 August 2020 19:42 UTC](https://discourse.nodered.org/t/plot-and-button-on-uibuilder/31581 "2020-08-16T19:42:53Z")

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Hi guys I'm trying to create a table and some buttons in the uibuilder, so basically I have some values comming from mqtt node and a button to send on in the ui, This is my flow. \[{"id":"8308324c.987ff","type":"uibuilde…

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## [Enter time on Dashboard and get event trigger in node-red](https://discourse.nodered.org/t/enter-time-on-dashboard-and-get-event-trigger-in-node-red/31615)

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**Author:** [@Calendil](https://discourse.nodered.org/u/Calendil)\
**Replies:** 1\
**Last updated:** [16 August 2020 18:02 UTC](https://discourse.nodered.org/t/enter-time-on-dashboard-and-get-event-trigger-in-node-red/31615 "2020-08-16T18:02:58Z")

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Hello Folks, I am trying to set my UI to have a time picker to trigger something. Dashboard will have two dropdown menu. one for hour and one for minute (I don't think there is any other way on dashboard. If there is, …

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## [How to generate an image from the 8x8 raw heat map data of an AMG8833 thermal sensor](https://discourse.nodered.org/t/how-to-generate-an-image-from-the-8x8-raw-heat-map-data-of-an-amg8833-thermal-sensor/31604)

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**Author:** [@gsenroc](https://discourse.nodered.org/u/gsenroc)\
**Replies:** 12\
**Last updated:** [16 August 2020 17:45 UTC](https://discourse.nodered.org/t/how-to-generate-an-image-from-the-8x8-raw-heat-map-data-of-an-amg8833-thermal-sensor/31604 "2020-08-16T17:45:19Z")

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Hi, I'm trying to generate PNG image from the 8x8 raw heat map of a thermal sensor, AMG8833 in this case. My goal is to generate an 8x8 PNG image from this data, I can use this image later for video stream, and use anot…

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## ["Failed to parse JSON string"](https://discourse.nodered.org/t/failed-to-parse-json-string/31590)

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**Author:** [@Zerg](https://discourse.nodered.org/u/Zerg)\
**Replies:** 13\
**Last updated:** [16 August 2020 17:34 UTC](https://discourse.nodered.org/t/failed-to-parse-json-string/31590 "2020-08-16T17:34:53Z")

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I am trying to repeat the steps from this instruction: https://flows.nodered.org/flow/b50779ea99f3daf38acc1ee6bed16c5b But, I get errors all the time: "Failed to parse JSON string" I installed "zigbee2mqtt" on "Ubuntu …

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## [RGB LED Control from Temperature](https://discourse.nodered.org/t/rgb-led-control-from-temperature/31316)

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**Author:** [@meatalhead](https://discourse.nodered.org/u/meatalhead)\
**Replies:** 18\
**Last updated:** [16 August 2020 16:19 UTC](https://discourse.nodered.org/t/rgb-led-control-from-temperature/31316 "2020-08-16T16:19:24Z")

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I'm currently running Node Red through Home Assistant on a Raspi 4, with a Mosquitto MQTT broker. I've connected a couple of APA102s (RGB LEDs) and a BME280 (Pressure + Temp + Humidity sensor) to a NodeMCU ESP8266. I've…

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## [If msg (Buffer) starts with “ABDC” direct](https://discourse.nodered.org/t/if-msg-buffer-starts-with-abdc-direct/31608)

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**Author:** [@New2Node](https://discourse.nodered.org/u/New2Node)\
**Replies:** 3\
**Last updated:** [16 August 2020 15:00 UTC](https://discourse.nodered.org/t/if-msg-buffer-starts-with-abdc-direct/31608 "2020-08-16T15:00:42Z")

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Hi, How do I direct a payload (Buffer) to a particular location depending on start values in the payload. For example I have a buffer which starts with \[0x1 0x50 0x30 0x2\] I want to send the message to a function not…

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## [Node-red-contrib-re-postgres: "The workspace contains some nodes that are not properly configured:"](https://discourse.nodered.org/t/node-red-contrib-re-postgres-the-workspace-contains-some-nodes-that-are-not-properly-configured/31585)

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**Author:** [@zoltansz](https://discourse.nodered.org/u/zoltansz)\
**Replies:** 2\
**Last updated:** [16 August 2020 07:37 UTC](https://discourse.nodered.org/t/node-red-contrib-re-postgres-the-workspace-contains-some-nodes-that-are-not-properly-configured/31585 "2020-08-16T07:37:33Z")

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Dear all, I have a properly working flow that inserts sensor data into a Postgres table. I already have 38.000 rows. However, every time I deploy my flow, NR warns me that the Postgres node (node-red-contrib-re-postgres…

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## [About node-red-node-pisrf?](https://discourse.nodered.org/t/about-node-red-node-pisrf/31546)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 6\
**Last updated:** [16 August 2020 03:55 UTC](https://discourse.nodered.org/t/about-node-red-node-pisrf/31546 "2020-08-16T03:55:12Z")

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Is node-red-node-pisrf maintained? I mean, it may not be a priority, but it is not orphaned, right? I have a couple of suggestions for it: Just add that US-100 sensor works with the node, just like the SRF04 and SRF…

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## [Parsing or catching the line color a chart selects?](https://discourse.nodered.org/t/parsing-or-catching-the-line-color-a-chart-selects/31535)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 6\
**Last updated:** [16 August 2020 03:51 UTC](https://discourse.nodered.org/t/parsing-or-catching-the-line-color-a-chart-selects/31535 "2020-08-16T03:51:53Z")

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Ok, so the cool feature of chart, is the color selection, automatic color selection that is per data set on said chart. The question is, is that color value somewhere some place, that a node or script can query? I have…

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## [I2c help with baby steps please](https://discourse.nodered.org/t/i2c-help-with-baby-steps-please/31582)

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**Author:** [@Peter\_Truman](https://discourse.nodered.org/u/Peter_Truman)\
**Replies:** 2\
**Last updated:** [15 August 2020 22:09 UTC](https://discourse.nodered.org/t/i2c-help-with-baby-steps-please/31582 "2020-08-15T22:09:59Z")

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Hi - new to everything (raspberry pi, python, node-red) but some experience with i2c I have built a board for my Pi that has a number of i2c devices (RTC, ADC, DAC and I/O expansion) - I have all of these working in pyt…

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## [Contrib i2c edit node settings for pcf8574](https://discourse.nodered.org/t/contrib-i2c-edit-node-settings-for-pcf8574/31560)

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**Author:** [@Jurg1505](https://discourse.nodered.org/u/Jurg1505)\
**Replies:** 2\
**Last updated:** [15 August 2020 18:08 UTC](https://discourse.nodered.org/t/contrib-i2c-edit-node-settings-for-pcf8574/31560 "2020-08-15T18:08:55Z")

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I can't find how to fill in the settings to set the output pins. sudo i2cdetect -y 1 gives

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## [How to include and launch node-red from javascript framework like Vue.js etc?](https://discourse.nodered.org/t/how-to-include-and-launch-node-red-from-javascript-framework-like-vue-js-etc/31261)

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**Author:** [@DevanandBaipotu](https://discourse.nodered.org/u/DevanandBaipotu)\
**Replies:** 12\
**Last updated:** [15 August 2020 12:30 UTC](https://discourse.nodered.org/t/how-to-include-and-launch-node-red-from-javascript-framework-like-vue-js-etc/31261 "2020-08-15T12:30:24Z")

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how to include and luanch the node-red from javascript framework like vue

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## [Switch Node on UI](https://discourse.nodered.org/t/switch-node-on-ui/31568)

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**Author:** [@Pac8](https://discourse.nodered.org/u/Pac8)\
**Replies:** 5\
**Last updated:** [15 August 2020 09:18 UTC](https://discourse.nodered.org/t/switch-node-on-ui/31568 "2020-08-15T09:18:56Z")

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I have a quick query that someone may have come across how to solve. I have an input coming in from a barcode scanner and i want to direct it to individual output texts on a UI. Is there a way to toggle or switch on and…

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## [Sending two values using ng-click=send()](https://discourse.nodered.org/t/sending-two-values-using-ng-click-send/31566)

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**Author:** [@vangalvin](https://discourse.nodered.org/u/vangalvin)\
**Replies:** 2\
**Last updated:** [14 August 2020 23:37 UTC](https://discourse.nodered.org/t/sending-two-values-using-ng-click-send/31566 "2020-08-14T23:37:32Z")

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I have a table cell set up to send back a value when its clicked. Ideally i would like to get it to send back two values in the payload. \<td ng-click="send({payload: device.deviceName, level:device.object.alertLevel})"\>{…

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## [Node Red - OpenHAB - Homekit - Very Beginner Questions for Homekit to OH item flow](https://discourse.nodered.org/t/node-red-openhab-homekit-very-beginner-questions-for-homekit-to-oh-item-flow/30149)

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**Author:** [@ckishappy](https://discourse.nodered.org/u/ckishappy)\
**Replies:** 1\
**Last updated:** [14 August 2020 22:08 UTC](https://discourse.nodered.org/t/node-red-openhab-homekit-very-beginner-questions-for-homekit-to-oh-item-flow/30149 "2020-08-14T22:08:25Z")

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Hi, I started to use node-red for the further HomeKit integration and I like it based on what I have seen. I used the node red and HomeKit and the openhab tutorials. This one was also posted on the OH forum but didn't ge…

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## [Problems with Raspberry Pi 4 GPIO input with Docker](https://discourse.nodered.org/t/problems-with-raspberry-pi-4-gpio-input-with-docker/31537)

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**Author:** [@Charry2014](https://discourse.nodered.org/u/Charry2014)\
**Replies:** 4\
**Last updated:** [14 August 2020 22:04 UTC](https://discourse.nodered.org/t/problems-with-raspberry-pi-4-gpio-input-with-docker/31537 "2020-08-14T22:04:20Z")

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For a while I have been using a Raspberry Pi 4 with Node Red and pigpiod to control some relays using GPIO output pins, and it works very well now. However now I try to use some GPIO pins as inputs and I am having a lot …

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## [Tado-client input node](https://discourse.nodered.org/t/tado-client-input-node/8217)

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**Author:** [@Folgore](https://discourse.nodered.org/u/Folgore)\
**Replies:** 10\
**Last updated:** [14 August 2020 21:25 UTC](https://discourse.nodered.org/t/tado-client-input-node/8217 "2020-08-14T21:25:02Z")

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Hi, I have a question. How can I know how to pass the correct payload for setting correctly the request? The node is this: Thank's

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## [Node-red-contrib-whatsappbot](https://discourse.nodered.org/t/node-red-contrib-whatsappbot/31474)

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**Author:** [@Didi](https://discourse.nodered.org/u/Didi)\
**Replies:** 3\
**Last updated:** [14 August 2020 19:54 UTC](https://discourse.nodered.org/t/node-red-contrib-whatsappbot/31474 "2020-08-14T19:54:40Z")

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\*Hello!! \* Can someone help me? I have problems installing the "node-red-contrib-whatsappbot" 2020-08-12T10:05:18.862Z Install : node-red-contrib-whatsappbot 0.1.1 2020-08-12T10:05:17.837Z npm install --no-audit --no-…

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## [Contrib-ui-svg: variable height/rotation on input](https://discourse.nodered.org/t/contrib-ui-svg-variable-height-rotation-on-input/31570)

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**Author:** [@ArneR](https://discourse.nodered.org/u/ArneR)\
**Replies:** 4\
**Last updated:** [14 August 2020 19:32 UTC](https://discourse.nodered.org/t/contrib-ui-svg-variable-height-rotation-on-input/31570 "2020-08-14T19:32:43Z")

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Hey I am using the contrib-ui-svg node. Currently I have 2 questions. (1) Rotation I am trying to rotate the item in red (see image belo), using an incoming value from a PLC. I am unable to achieve this. I viewed the…

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## [GitHub Authentication Callback URL?](https://discourse.nodered.org/t/github-authentication-callback-url/31573)

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**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 0\
**Last updated:** [14 August 2020 16:16 UTC](https://discourse.nodered.org/t/github-authentication-callback-url/31573 "2020-08-14T16:16:10Z")

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Trying to configure the GitHub Authentication for the NodeRED Admin UI. In settings I have: adminAuth: require("node-red-auth-github")({ clientID: process.env.GITHUB\_CLIENT\_ID, clientSecret: process.env.GITHUB\_…

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## [Need help with contrib-string](https://discourse.nodered.org/t/need-help-with-contrib-string/31569)

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**Author:** [@Esjaycc](https://discourse.nodered.org/u/Esjaycc)\
**Replies:** 1\
**Last updated:** [14 August 2020 14:54 UTC](https://discourse.nodered.org/t/need-help-with-contrib-string/31569 "2020-08-14T14:54:57Z")

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Hi there, i tried to extract a value from a httprequest. The Value changes every second. When i make the request : http://blynk-cloud.com/RUAYzVsCN7uQIIlUYc2DFjiCOq5XyZnN/get/V3 i get back \["11.730"\]. I only want to…

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## [How to convert object into array?](https://discourse.nodered.org/t/how-to-convert-object-into-array/31563)

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**Author:** [@sharper](https://discourse.nodered.org/u/sharper)\
**Replies:** 5\
**Last updated:** [14 August 2020 14:30 UTC](https://discourse.nodered.org/t/how-to-convert-object-into-array/31563 "2020-08-14T14:30:00Z")

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I am having some issues understanding how to create an array from an object, This object is one piece of an array(results from a mysql query) maybe I just need more coffee: Current object looks like this: {"task\_…

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## [Refer entity name in title of node ](https://discourse.nodered.org/t/refer-entity-name-in-title-of-node/31557)

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**Author:** [@fietstasss](https://discourse.nodered.org/u/fietstasss)\
**Replies:** 2\
**Last updated:** [14 August 2020 11:41 UTC](https://discourse.nodered.org/t/refer-entity-name-in-title-of-node/31557 "2020-08-14T11:41:09Z")

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Hi all, I like to keep my NodeRed as ‘organised’ as possible. To achieve this I tend to use the ‘Name’ function for each block with a bit of a description of what it does. For example, let’s say I’m using a ‘call-servi…

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## [Problems to open port 162 (SNMP-TRAP)](https://discourse.nodered.org/t/problems-to-open-port-162-snmp-trap/31555)

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**Author:** [@fernandezjm](https://discourse.nodered.org/u/fernandezjm)\
**Replies:** 1\
**Last updated:** [14 August 2020 10:32 UTC](https://discourse.nodered.org/t/problems-to-open-port-162-snmp-trap/31555 "2020-08-14T10:32:01Z")

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I want to use node-red-contrib-snmp-trap-listener to receive traps via snmp, on port 162, but I get this error "can't open port: 162". I have the same problem with node-red-contrib-syslog, which uses port 514. I have rea…

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## [Missing Node Change](https://discourse.nodered.org/t/missing-node-change/31519)

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**Author:** [@Ward](https://discourse.nodered.org/u/Ward)\
**Replies:** 5\
**Last updated:** [14 August 2020 09:40 UTC](https://discourse.nodered.org/t/missing-node-change/31519 "2020-08-14T09:40:09Z")

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Hi, I've installed node red on a RevPi Core3 and updated node-red to the latest version 1.1.3. But now i see that the change node is missing. Does anyone have a idea why? Because it's a standard node no? I see it in t…

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## [\[Announce\] Node-RED Node TypeScript Starter](https://discourse.nodered.org/t/announce-node-red-node-typescript-starter/31545)

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**Author:** [@alexk111](https://discourse.nodered.org/u/alexk111)\
**Replies:** 2\
**Last updated:** [14 August 2020 09:01 UTC](https://discourse.nodered.org/t/announce-node-red-node-typescript-starter/31545 "2020-08-14T09:01:25Z")

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Announcing Node-RED Node TypeScript Starter, a quick-start template repository for creating new Node-RED node sets in TypeScript.

[Previous page](https://discourse.nodered.org/c/general/7.md?page=696)

[Next page](https://discourse.nodered.org/c/general/7.md?page=698)