# Latest

**URL:** https://discourse.nodered.org/latest.md?no_subcategories=false&page=435

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

**Page:** 436

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## [Node-red-contrib-modbus and MAX485 TTL to RS485 converter](https://discourse.nodered.org/t/node-red-contrib-modbus-and-max485-ttl-to-rs485-converter/72447)

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**Author:** [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\
**Replies:** 1\
**Last updated:** [20 December 2022 12:58 UTC](https://discourse.nodered.org/t/node-red-contrib-modbus-and-max485-ttl-to-rs485-converter/72447 "2022-12-20T12:58:00Z")

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Hi, Is it possible to use MAX485 TTL to RS485 converter in node-red ? converter link: https://roboticx.ps/product/max485-ttl-to-rs485/ library: node-red-contrib-modbus (node) - Node-RED I found that it uses /dev/ttyS…

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## [Issue configuring MQTT "AI on the edge" with Node-Red](https://discourse.nodered.org/t/issue-configuring-mqtt-ai-on-the-edge-with-node-red/72215)

<div class="topic-metadata">

**Author:** [@mimijojo](https://discourse.nodered.org/u/mimijojo)\
**Replies:** 2\
**Last updated:** [20 December 2022 12:38 UTC](https://discourse.nodered.org/t/issue-configuring-mqtt-ai-on-the-edge-with-node-red/72215 "2022-12-20T12:38:56Z")

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I'm using "AI on the edge" (Release: v13.0.7 (Commit: 304b9e0)) on my ESP32-CAM. Here the config.ini file including the MQTT parameters : \[MakeImage\] ;LogImageLocation = /log/source WaitBeforeTakingPicture = 5 ;LogfileR…

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## [Avoid dashboard returning to default tab](https://discourse.nodered.org/t/avoid-dashboard-returning-to-default-tab/72459)

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**Author:** [@omrid](https://discourse.nodered.org/u/omrid)\
**Replies:** 0\
**Last updated:** [20 December 2022 10:38 UTC](https://discourse.nodered.org/t/avoid-dashboard-returning-to-default-tab/72459 "2022-12-20T10:38:37Z")

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Hi all, In our implementation we have multiple dashboard tabs. We deliberately hide the sidebar menu and navigate to the required tabs via their direct URL (:1880/ui/#!/). This works well, however whenever we update or…

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## [Sqlite SELECT OK from terminal, empty result from NR](https://discourse.nodered.org/t/sqlite-select-ok-from-terminal-empty-result-from-nr/72440)

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**Author:** [@Petr](https://discourse.nodered.org/u/Petr)\
**Replies:** 13\
**Last updated:** [20 December 2022 10:37 UTC](https://discourse.nodered.org/t/sqlite-select-ok-from-terminal-empty-result-from-nr/72440 "2022-12-20T10:37:48Z")

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I have quite complex SQL query. From the terminal on the server everything is OK with the command sqlite3 power.sqlite ".read sql.txt" (my query is stored in the sql.txt file). Unfortunatelly from the NR the result of…

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## [Dropdown that generates a graph after pressing a button](https://discourse.nodered.org/t/dropdown-that-generates-a-graph-after-pressing-a-button/72435)

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**Author:** [@Erissin\_Industria4.0](https://discourse.nodered.org/u/Erissin_Industria4.0)\
**Replies:** 1\
**Last updated:** [20 December 2022 10:35 UTC](https://discourse.nodered.org/t/dropdown-that-generates-a-graph-after-pressing-a-button/72435 "2022-12-20T10:35:49Z")

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I have a dropdown with two values, how do I make a button generate a graph according to what I chose in the dropdown, on the dashboard?

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## [Searching for hashtags on Mastodon](https://discourse.nodered.org/t/searching-for-hashtags-on-mastodon/72424)

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**Author:** [@ralphcrutzen](https://discourse.nodered.org/u/ralphcrutzen)\
**Replies:** 1\
**Last updated:** [20 December 2022 09:46 UTC](https://discourse.nodered.org/t/searching-for-hashtags-on-mastodon/72424 "2022-12-20T09:46:14Z")

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Has anyone successfully used the getMessage node from node-red-contrib-mastodon (node) - Node-RED to search for a specific hashtag yet? I got the sendMessage node working, but getMessage doesn´t respond to the hashtag I…

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## [Express deprecated res.status("200") - Should not be String in Response Node at Status Code Prop](https://discourse.nodered.org/t/express-deprecated-res-status-200-should-not-be-string-in-response-node-at-status-code-prop/72418)

<div class="topic-metadata">

**Author:** [@MeGusta](https://discourse.nodered.org/u/MeGusta)\
**Replies:** 6\
**Last updated:** [20 December 2022 09:37 UTC](https://discourse.nodered.org/t/express-deprecated-res-status-200-should-not-be-string-in-response-node-at-status-code-prop/72418 "2022-12-20T09:37:38Z")

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Same as : Strange log line From time to time I get the Warnung : express deprecated res.status("200"): use res.status(200) instead at It comes from the http Response Node : I set there a Status Code (without quota…

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## [Read a variable in an array of object without variable name](https://discourse.nodered.org/t/read-a-variable-in-an-array-of-object-without-variable-name/71194)

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**Author:** [@Christian26](https://discourse.nodered.org/u/Christian26)\
**Replies:** 34\
**Last updated:** [20 December 2022 09:06 UTC](https://discourse.nodered.org/t/read-a-variable-in-an-array-of-object-without-variable-name/71194 "2022-12-20T09:06:40Z")

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Hello, I am new at this forum and maybe someone have already ask these question, but i can't find the right answer. I have a array of objects and I would like to read the right variable on the right place. What you…

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## [Serial port loopback test RPI](https://discourse.nodered.org/t/serial-port-loopback-test-rpi/72284)

<div class="topic-metadata">

**Author:** [@devifast](https://discourse.nodered.org/u/devifast)\
**Replies:** 38\
**Last updated:** [20 December 2022 08:37 UTC](https://discourse.nodered.org/t/serial-port-loopback-test-rpi/72284 "2022-12-20T08:37:10Z")

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How to test serial port ttyAMA0 on RPI by connecting RX and TX. with wire? Thanks. There is no communication between the two.

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## [How can custom node create by vue or react web Framework](https://discourse.nodered.org/t/how-can-custom-node-create-by-vue-or-react-web-framework/72439)

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**Author:** [@baishu](https://discourse.nodered.org/u/baishu)\
**Replies:** 4\
**Last updated:** [20 December 2022 02:00 UTC](https://discourse.nodered.org/t/how-can-custom-node-create-by-vue-or-react-web-framework/72439 "2022-12-20T02:00:39Z")

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custom node can created by vue or react web Framework

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## [How to track dependencies between nodes](https://discourse.nodered.org/t/how-to-track-dependencies-between-nodes/72393)

<div class="topic-metadata">

**Author:** [@tve](https://discourse.nodered.org/u/tve)\
**Replies:** 15\
**Last updated:** [20 December 2022 01:06 UTC](https://discourse.nodered.org/t/how-to-track-dependencies-between-nodes/72393 "2022-12-20T01:06:27Z")

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One of the things that keeps nagging me in the implementation of FlexDash is the tracking of dependencies between nodes. The std dashboard has exactly the same issue and I'm running into this elsewhere too. I fear there …

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## [Node-red-node-ui-table problem](https://discourse.nodered.org/t/node-red-node-ui-table-problem/72436)

<div class="topic-metadata">

**Author:** [@d\_ferdi](https://discourse.nodered.org/u/d_ferdi)\
**Replies:** 0\
**Last updated:** [19 December 2022 21:52 UTC](https://discourse.nodered.org/t/node-red-node-ui-table-problem/72436 "2022-12-19T21:52:54Z")

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hello, i have a big problem with the table node. i use it to display some data from my pv-system with 15 rows and 8 columns. this works fine, but i want to set other column-names and width and alignment. but if i do th…

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## [Parsing Payload](https://discourse.nodered.org/t/parsing-payload/72294)

<div class="topic-metadata">

**Author:** [@bwaig](https://discourse.nodered.org/u/bwaig)\
**Replies:** 14\
**Last updated:** [19 December 2022 21:48 UTC](https://discourse.nodered.org/t/parsing-payload/72294 "2022-12-19T21:48:19Z")

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My payload is all one big string and I need to convert it into a JSON object. I'm not quite sure what to do next I've read a lot of different articles but nothing seems to deal with my particular problem. I am hoping som…

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## [Energy meter dashboard in distress](https://discourse.nodered.org/t/energy-meter-dashboard-in-distress/72131)

<div class="topic-metadata">

**Author:** [@Mrfox](https://discourse.nodered.org/u/Mrfox)\
**Replies:** 5\
**Last updated:** [19 December 2022 20:53 UTC](https://discourse.nodered.org/t/energy-meter-dashboard-in-distress/72131 "2022-12-19T20:53:33Z")

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Hi, I have a setup with Node-Red -\> InfluxDB -\> Grafana for visualizing data from my energy meter. This has been in use for abt three years, just working fine. All of a suden the Grafana panels are empty and I get the m…

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## [Smartmeter-obis error: Error: Error on Baudrate changeover: Error: Port is not open](https://discourse.nodered.org/t/smartmeter-obis-error-error-error-on-baudrate-changeover-error-port-is-not-open/72432)

<div class="topic-metadata">

**Author:** [@vanTuxen](https://discourse.nodered.org/u/vanTuxen)\
**Replies:** 0\
**Last updated:** [19 December 2022 20:40 UTC](https://discourse.nodered.org/t/smartmeter-obis-error-error-error-on-baudrate-changeover-error-port-is-not-open/72432 "2022-12-19T20:40:12Z")

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Hi all, I need you help making SmartMeter work with my nodered ... System Weidmann Elektronik IR IR Schreib/Lesekopf USB (Optokopf) - Infrarot Sendediode (Tx), Infrarot Phototransistor (Rx) IC: FTDI FT232R / FT230X …

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## [Pausing or stopping an ongoing playback in node-red-contrib-play-sound](https://discourse.nodered.org/t/pausing-or-stopping-an-ongoing-playback-in-node-red-contrib-play-sound/72112)

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**Author:** [@thepianocian](https://discourse.nodered.org/u/thepianocian)\
**Replies:** 2\
**Last updated:** [19 December 2022 20:05 UTC](https://discourse.nodered.org/t/pausing-or-stopping-an-ongoing-playback-in-node-red-contrib-play-sound/72112 "2022-12-19T20:05:20Z")

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Hi everyone. I am running into a weird issue. Using node-red-contrib-play-sound. For the player, I put {} because I don’t know what player to specify. Anyway, when I inject the standard message, it’s fine and it plays t…

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## [SM RTD stackable card with raspberry Pi and node red for measuring the temperature of PT 100](https://discourse.nodered.org/t/sm-rtd-stackable-card-with-raspberry-pi-and-node-red-for-measuring-the-temperature-of-pt-100/72103)

<div class="topic-metadata">

**Author:** [@akshayjain](https://discourse.nodered.org/u/akshayjain)\
**Replies:** 20\
**Last updated:** [19 December 2022 19:10 UTC](https://discourse.nodered.org/t/sm-rtd-stackable-card-with-raspberry-pi-and-node-red-for-measuring-the-temperature-of-pt-100/72103 "2022-12-19T19:10:22Z")

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Hi there, I had a run the program which is in the document and in the NodeRED forum topic the thing is that i added 16 nodes RTD , 16 nodes of timestamp, 16 nodes of gauge , but now the problem is when i use one Hat i o…

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## [Create and display log in dashboard](https://discourse.nodered.org/t/create-and-display-log-in-dashboard/72384)

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**Author:** [@Kimovitzh](https://discourse.nodered.org/u/Kimovitzh)\
**Replies:** 7\
**Last updated:** [19 December 2022 17:13 UTC](https://discourse.nodered.org/t/create-and-display-log-in-dashboard/72384 "2022-12-19T17:13:40Z")

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Hi. What appears to be what I want is in the last post in this thread: Unfortunately the guy who posted this isn't replying. What I want is to have a true and false signal being logged and saved and then displayed on…

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## [HTTP node help (beginner)](https://discourse.nodered.org/t/http-node-help-beginner/72419)

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**Author:** [@markost](https://discourse.nodered.org/u/markost)\
**Replies:** 4\
**Last updated:** [19 December 2022 16:31 UTC](https://discourse.nodered.org/t/http-node-help-beginner/72419 "2022-12-19T16:31:35Z")

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Hello, I am new to http nodes and need help from more experienced users. With inject I send data (POST) to the URL to the RequestBin.com endpoint. These data are properly displayed there (picture attached). How to …

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## [How to remove whitespaces and add + sign there](https://discourse.nodered.org/t/how-to-remove-whitespaces-and-add-sign-there/72412)

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**Author:** [@nit-cyber](https://discourse.nodered.org/u/nit-cyber)\
**Replies:** 3\
**Last updated:** [19 December 2022 14:11 UTC](https://discourse.nodered.org/t/how-to-remove-whitespaces-and-add-sign-there/72412 "2022-12-19T14:11:24Z")

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http//google 2022 to 2023 .com to change this to http//google+2022+to+2023.com

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## [Update Home Assistant Nodes](https://discourse.nodered.org/t/update-home-assistant-nodes/72420)

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**Author:** [@Linhey](https://discourse.nodered.org/u/Linhey)\
**Replies:** 0\
**Last updated:** [19 December 2022 13:33 UTC](https://discourse.nodered.org/t/update-home-assistant-nodes/72420 "2022-12-19T13:33:11Z")

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HELP! I just did a rather daft thing I was looking thought this forum and found something i thought I would copy to look at how it worked. Unfortunately the flow included a a node for Home assistant, which I already …

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## [Convert the output of flow timer node to human readable format in node red](https://discourse.nodered.org/t/convert-the-output-of-flow-timer-node-to-human-readable-format-in-node-red/72379)

<div class="topic-metadata">

**Author:** [@Johnson](https://discourse.nodered.org/u/Johnson)\
**Replies:** 8\
**Last updated:** [19 December 2022 12:57 UTC](https://discourse.nodered.org/t/convert-the-output-of-flow-timer-node-to-human-readable-format-in-node-red/72379 "2022-12-19T12:57:38Z")

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Hi guys , I have a doubt in the output of flow timer node . Is it possible to convert the start and stop time to human readable form .

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## [URL call from a dashboard button](https://discourse.nodered.org/t/url-call-from-a-dashboard-button/72415)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 2\
**Last updated:** [19 December 2022 12:38 UTC](https://discourse.nodered.org/t/url-call-from-a-dashboard-button/72415 "2022-12-19T12:38:32Z")

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I made the below flow some time ago to download a file from my Node-Red server. I just pass the full file path like this: http://192.168.x.x:1880/download?filename=/home/pi/something.csv Up until now I formatted a 'href…

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## [Set Chromecast screen status to idle](https://discourse.nodered.org/t/set-chromecast-screen-status-to-idle/72361)

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**Author:** [@HonestJohn61](https://discourse.nodered.org/u/HonestJohn61)\
**Replies:** 1\
**Last updated:** [19 December 2022 12:16 UTC](https://discourse.nodered.org/t/set-chromecast-screen-status-to-idle/72361 "2022-12-19T12:16:09Z")

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I'm trying to find a way of telling my Chromecast with Google TV screen to idle - do you know how to do this from Node-red? I want to do that since I've set it to display selected photos when in Ambient mode. I've seen n…

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## [Node Red Docker on Synology Connection problem](https://discourse.nodered.org/t/node-red-docker-on-synology-connection-problem/72340)

<div class="topic-metadata">

**Author:** [@Andinger](https://discourse.nodered.org/u/Andinger)\
**Replies:** 2\
**Last updated:** [19 December 2022 11:46 UTC](https://discourse.nodered.org/t/node-red-docker-on-synology-connection-problem/72340 "2022-12-19T11:46:00Z")

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Hi all, I got Nodered docker running on my Synology DS220+. Everything was going well, I installed it out of DSM and set the UID 1000 as folder owner afterwards. When I now open Nodered the editor came up but every time…

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## [Retrieve upstream node name/type](https://discourse.nodered.org/t/retrieve-upstream-node-name-type/72408)

<div class="topic-metadata">

**Author:** [@kakyoism](https://discourse.nodered.org/u/kakyoism)\
**Replies:** 7\
**Last updated:** [19 December 2022 11:43 UTC](https://discourse.nodered.org/t/retrieve-upstream-node-name-type/72408 "2022-12-19T11:43:53Z")

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Using the node event handler node.on('input', function (input, send, done) {}) I wonder how I can find the name/type of the upstream node, e.g., if my flow looks like "inject =\> MyNode", then how can MyNode know that i…

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## [HTTP POST multipart-form-data via msg.payload](https://discourse.nodered.org/t/http-post-multipart-form-data-via-msg-payload/72250)

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**Author:** [@nit-cyber](https://discourse.nodered.org/u/nit-cyber)\
**Replies:** 27\
**Last updated:** [19 December 2022 09:56 UTC](https://discourse.nodered.org/t/http-post-multipart-form-data-via-msg-payload/72250 "2022-12-19T09:56:48Z")

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## [Custom Front end](https://discourse.nodered.org/t/custom-front-end/72303)

<div class="topic-metadata">

**Author:** [@lakshaydulani](https://discourse.nodered.org/u/lakshaydulani)\
**Replies:** 2\
**Last updated:** [19 December 2022 09:51 UTC](https://discourse.nodered.org/t/custom-front-end/72303 "2022-12-19T09:51:14Z")

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## [How can we receive acknowledgement of file transfer using "SFTP"](https://discourse.nodered.org/t/how-can-we-receive-acknowledgement-of-file-transfer-using-sftp/72404)

<div class="topic-metadata">

**Author:** [@SherrySri](https://discourse.nodered.org/u/SherrySri)\
**Replies:** 2\
**Last updated:** [19 December 2022 09:10 UTC](https://discourse.nodered.org/t/how-can-we-receive-acknowledgement-of-file-transfer-using-sftp/72404 "2022-12-19T09:10:36Z")

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HI Guys, In one of my project I am transfer a csv file from local PC to remote PC using SFTP. Since frequency of file transfer is more (every 30 sec) many times I am seeing loss of data. So, I want to ensure using some…

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## [Get wrong number from debug node](https://discourse.nodered.org/t/get-wrong-number-from-debug-node/72296)

<div class="topic-metadata">

**Author:** [@ThisIsFrankTsai](https://discourse.nodered.org/u/ThisIsFrankTsai)\
**Replies:** 10\
**Last updated:** [19 December 2022 07:00 UTC](https://discourse.nodered.org/t/get-wrong-number-from-debug-node/72296 "2022-12-19T07:00:32Z")

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Hi,there Please helped me, I designed a simple flow as below, timestample -\> function -\>debug My function dseigined as below, msg.payload =0x01033120000C4AF9; return msg; I send 0x01033120000C4AF9 (hex) But I go…

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