# Latest

**URL:** https://discourse.nodered.org/latest.md?page=735

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

**Page:** 736

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## [Error: EIO: i/o error, read (line:44)](https://discourse.nodered.org/t/error-eio-i-o-error-read-line-44/50945)

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**Author:** [@opakornpko](https://discourse.nodered.org/u/opakornpko)\
**Replies:** 0\
**Last updated:** [13 September 2021 07:33 UTC](https://discourse.nodered.org/t/error-eio-i-o-error-read-line-44/50945 "2021-09-13T07:33:53Z")

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Hello, I want to ask a problem without doing anything. Recognized by the information not sent to the database. At the node setting "Error: EIO: i/o error, read (line:44)" I tried to reboot but it show "-sh: Reboot: com…

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## [WorldMap Panel - How to stop the "reset" of the map view after 30 seconds?](https://discourse.nodered.org/t/worldmap-panel-how-to-stop-the-reset-of-the-map-view-after-30-seconds/50929)

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**Author:** [@boscloud](https://discourse.nodered.org/u/boscloud)\
**Replies:** 1\
**Last updated:** [13 September 2021 07:26 UTC](https://discourse.nodered.org/t/worldmap-panel-how-to-stop-the-reset-of-the-map-view-after-30-seconds/50929 "2021-09-13T07:26:23Z")

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I'm using the WorldMap Panel heavily right now, and I noticed that after 30 seconds, my map will always "reset" to the base GPS coordinates and zoom level. This is a pain when working on the map in detail. Has anyone se…

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## [Switch feedback](https://discourse.nodered.org/t/switch-feedback/50925)

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**Author:** [@holographic](https://discourse.nodered.org/u/holographic)\
**Replies:** 5\
**Last updated:** [13 September 2021 07:06 UTC](https://discourse.nodered.org/t/switch-feedback/50925 "2021-09-13T07:06:48Z")

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Hello all, I would like to integrate a switch feedback. Difficult to explain: There are 3 switches that output different values in PWM. Switch 1 =100%. Switch 2 = 50% Switch 3 = 20% When I press switch 1, switch 2…

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## [Smartfox pro in Node-Red](https://discourse.nodered.org/t/smartfox-pro-in-node-red/50923)

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**Author:** [@whabby](https://discourse.nodered.org/u/whabby)\
**Replies:** 1\
**Last updated:** [13 September 2021 07:00 UTC](https://discourse.nodered.org/t/smartfox-pro-in-node-red/50923 "2021-09-13T07:00:22Z")

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Hi everyone Im trying to visualize the values of smartfox pro in node-red. Is there anybody with experience in that theme? The final goal is to manage a wallbox "go-eCharger" depending the values of smartfox. Thanks for…

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## [UI dashboard table:load from sql server db](https://discourse.nodered.org/t/ui-dashboard-table-load-from-sql-server-db/50932)

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**Author:** [@humphrysr](https://discourse.nodered.org/u/humphrysr)\
**Replies:** 1\
**Last updated:** [13 September 2021 06:55 UTC](https://discourse.nodered.org/t/ui-dashboard-table-load-from-sql-server-db/50932 "2021-09-13T06:55:37Z")

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Is it possible to create a UI table from a sql server db?

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## [Ui-table dsiplay control](https://discourse.nodered.org/t/ui-table-dsiplay-control/48780)

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**Author:** [@trust](https://discourse.nodered.org/u/trust)\
**Replies:** 1\
**Last updated:** [13 September 2021 05:29 UTC](https://discourse.nodered.org/t/ui-table-dsiplay-control/48780 "2021-09-13T05:29:57Z")

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I have a table which is updated about once a second. It's sized so that if it gets bigger, it still fits in the same display area, but scroll bars appear and it can be scrolled. But each time it's updated. the view rese…

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## [Tabulator from google sheet](https://discourse.nodered.org/t/tabulator-from-google-sheet/50933)

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**Author:** [@xpqrs97](https://discourse.nodered.org/u/xpqrs97)\
**Replies:** 0\
**Last updated:** [13 September 2021 01:48 UTC](https://discourse.nodered.org/t/tabulator-from-google-sheet/50933 "2021-09-13T01:48:29Z")

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Hi i just wanna ask something, is there any possibilities that i use the tabulator table but the data is fetched directly from google sheet? no any data inserted inside the tabulator code. if yes how do i declare the dat…

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## [Button action and text](https://discourse.nodered.org/t/button-action-and-text/50888)

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**Author:** [@rcalves](https://discourse.nodered.org/u/rcalves)\
**Replies:** 2\
**Last updated:** [12 September 2021 19:02 UTC](https://discourse.nodered.org/t/button-action-and-text/50888 "2021-09-12T19:02:02Z")

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Good morning, I'm new to node-red and how can I make it, for example, when clicking on a button, it loads the content of a text and displays it? Is there any training, tutorial or handout?

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## [Battery monitor kWh reporting](https://discourse.nodered.org/t/battery-monitor-kwh-reporting/50877)

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**Author:** [@Sammerdan](https://discourse.nodered.org/u/Sammerdan)\
**Replies:** 9\
**Last updated:** [12 September 2021 18:43 UTC](https://discourse.nodered.org/t/battery-monitor-kwh-reporting/50877 "2021-09-12T18:43:54Z")

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Hi! I've got next situation: My victron battery monitor gives via MQTT all kind of info. But unfortunately I don't see the kWh that day charged or discharged. I do see what at that moment is the charge or discharge. …

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## [Weird issues trying to update](https://discourse.nodered.org/t/weird-issues-trying-to-update/50895)

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**Author:** [@boskoe](https://discourse.nodered.org/u/boskoe)\
**Replies:** 18\
**Last updated:** [12 September 2021 16:49 UTC](https://discourse.nodered.org/t/weird-issues-trying-to-update/50895 "2021-09-12T16:49:28Z")

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Hi, I have an Intel NUC that' has been running Debian 10 reliably for several years, I use it as a general purpose Linux IOT server. I used @scargill "The Script" to install all the IOT programs. I consider myself moder…

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## [Timer in dashboard](https://discourse.nodered.org/t/timer-in-dashboard/50924)

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**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 1\
**Last updated:** [12 September 2021 16:20 UTC](https://discourse.nodered.org/t/timer-in-dashboard/50924 "2021-09-12T16:20:51Z")

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Hi, I'm trying to show remaining time inside my dashboard. I use classic numeric input nodes to set the minutes for my garden watering. I save this value into context and when I start the process I read the value from …

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## [Avoid overlaping](https://discourse.nodered.org/t/avoid-overlaping/50920)

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**Author:** [@WernerM96](https://discourse.nodered.org/u/WernerM96)\
**Replies:** 1\
**Last updated:** [12 September 2021 13:14 UTC](https://discourse.nodered.org/t/avoid-overlaping/50920 "2021-09-12T13:14:55Z")

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Hey, i have a problem. If i scale the browser on full size - a template will overlap with another. If i resize it a little bit smaller - it works. How can i avoid this problem generally? Not fullsize: Fullsize: …

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## [I need help with a node-red-contrib-tplink-tapo-connect-api](https://discourse.nodered.org/t/i-need-help-with-a-node-red-contrib-tplink-tapo-connect-api/50919)

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**Author:** [@Nicco02F](https://discourse.nodered.org/u/Nicco02F)\
**Replies:** 1\
**Last updated:** [12 September 2021 11:58 UTC](https://discourse.nodered.org/t/i-need-help-with-a-node-red-contrib-tplink-tapo-connect-api/50919 "2021-09-12T11:58:41Z")

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Hi everyone, I downloaded this node: "node-red-contrib-tplink-tapo-connect-api" I can, through msg.payload = 1 ", turn on or off the light bulbs I have in the house PROBLEM: I can't change the color or brightness of the…

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## [Multiple subflows with context variables in a tab](https://discourse.nodered.org/t/multiple-subflows-with-context-variables-in-a-tab/50916)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 10\
**Last updated:** [12 September 2021 11:57 UTC](https://discourse.nodered.org/t/multiple-subflows-with-context-variables-in-a-tab/50916 "2021-09-12T11:57:47Z")

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Hello, I have a little problem understanding & figuring out how I can have multiple subflows on the same tab flow where each subflow needs to have it's own variables in context As example, I have this test flow below. …

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## [Setting properties of link nodes...from flow](https://discourse.nodered.org/t/setting-properties-of-link-nodes-from-flow/50917)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 1\
**Last updated:** [12 September 2021 11:02 UTC](https://discourse.nodered.org/t/setting-properties-of-link-nodes-from-flow/50917 "2021-09-12T11:02:40Z")

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Hello, I'm looking for if it would be possible to set properties of link nodes programmatically (from javascript or from another node in the flow)? It is the name of the link node I would like to set Best regards, Walte…

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## [How to use painless mesh with node red](https://discourse.nodered.org/t/how-to-use-painless-mesh-with-node-red/50912)

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**Author:** [@Eldho-Abraham-coder](https://discourse.nodered.org/u/Eldho-Abraham-coder)\
**Replies:** 5\
**Last updated:** [12 September 2021 10:12 UTC](https://discourse.nodered.org/t/how-to-use-painless-mesh-with-node-red/50912 "2021-09-12T10:12:00Z")

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see https://github.com/gmag11/painlessMesh this is mesh technology for esp8266 family of wifi microcontrollers is the a node available to be part of this mesh technology.

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## [Climacell weather API V4](https://discourse.nodered.org/t/climacell-weather-api-v4/50765)

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**Author:** [@grumpazoid](https://discourse.nodered.org/u/grumpazoid)\
**Replies:** 2\
**Last updated:** [12 September 2021 09:09 UTC](https://discourse.nodered.org/t/climacell-weather-api-v4/50765 "2021-09-12T09:09:35Z")

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I noticed my climacell weather data had stopped updating. It appears they have now become tomorrow.io and changed their API to ver4. Has anyone had any success using V4 from within Node Red? I have a new api key but I …

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## [One tcp requests with multiply source port](https://discourse.nodered.org/t/one-tcp-requests-with-multiply-source-port/50629)

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**Author:** [@bar-shiratech](https://discourse.nodered.org/u/bar-shiratech)\
**Replies:** 12\
**Last updated:** [12 September 2021 08:55 UTC](https://discourse.nodered.org/t/one-tcp-requests-with-multiply-source-port/50629 "2021-09-12T08:55:41Z")

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Hi All, I wrote a flow that requires me to send multiple tcp requests (because i need a different source port for each request). For example, I have attached a flow that simulates what I need (not my own). In the atta…

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## [How to work out what CRC calculation to use?](https://discourse.nodered.org/t/how-to-work-out-what-crc-calculation-to-use/50913)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 1\
**Last updated:** [12 September 2021 07:51 UTC](https://discourse.nodered.org/t/how-to-work-out-what-crc-calculation-to-use/50913 "2021-09-12T07:51:08Z")

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Guys, I have an undocumented energy meter that i am reading from - i have snooped on the protocol and found information online about similar units so can make some assumptions about the data involved. However i am wond…

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## [Creating flow for DS18B20 sensor and relays on RPI with Node-Red](https://discourse.nodered.org/t/creating-flow-for-ds18b20-sensor-and-relays-on-rpi-with-node-red/50911)

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**Author:** [@blixen66](https://discourse.nodered.org/u/blixen66)\
**Replies:** 4\
**Last updated:** [12 September 2021 07:49 UTC](https://discourse.nodered.org/t/creating-flow-for-ds18b20-sensor-and-relays-on-rpi-with-node-red/50911 "2021-09-12T07:49:44Z")

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I have tried and tried but do not get it, my knowledge is not enough at the moment. I would be very happy if someone could help me with a flow to control a heater using a DS18B20 sensor and two GPIO controlled relays. Re…

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## [Display camera in dashboard](https://discourse.nodered.org/t/display-camera-in-dashboard/50747)

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**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 11\
**Last updated:** [12 September 2021 05:33 UTC](https://discourse.nodered.org/t/display-camera-in-dashboard/50747 "2021-09-12T05:33:51Z")

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Hi, I have one Reolink RLC-510wa wifi and after reading this post .. I download the flow of @BartButenaers and set this string: ... ffmpeg -rtsp\_transport tcp -i "rtsp://192.168.1.16:554/user=xxxx\_password=xxxx\_ch…

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## [Difference between Dashboard's button and inject node](https://discourse.nodered.org/t/difference-between-dashboards-button-and-inject-node/50875)

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**Author:** [@Hichem](https://discourse.nodered.org/u/Hichem)\
**Replies:** 4\
**Last updated:** [11 September 2021 23:25 UTC](https://discourse.nodered.org/t/difference-between-dashboards-button-and-inject-node/50875 "2021-09-11T23:25:38Z")

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Hi, I have a button that sends a msg.payload to a function and the function treat the received message then display the result in a table (I have created a UI template). When I click the button, the value in the table …

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## [Flow "names" in the edit screen](https://discourse.nodered.org/t/flow-names-in-the-edit-screen/50903)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [11 September 2021 21:39 UTC](https://discourse.nodered.org/t/flow-names-in-the-edit-screen/50903 "2021-09-11T21:39:14Z")

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NR 2.0.1 I am helping someone and imported a flow. I noticed this. Is that legal?

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## [Display a single line diagram and link field signals (Digital I/Os) to the visual representation](https://discourse.nodered.org/t/display-a-single-line-diagram-and-link-field-signals-digital-i-os-to-the-visual-representation/50899)

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**Author:** [@Isuru](https://discourse.nodered.org/u/Isuru)\
**Replies:** 1\
**Last updated:** [11 September 2021 20:45 UTC](https://discourse.nodered.org/t/display-a-single-line-diagram-and-link-field-signals-digital-i-os-to-the-visual-representation/50899 "2021-09-11T20:45:17Z")

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Hi, I want to display a single line diagram (switching device, transformer, cables) in node red dashboard and link them to the field signals (i.e color change when a breaker is switched on etc.) . Can I achieve this in n…

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## [Display table data from sqlite](https://discourse.nodered.org/t/display-table-data-from-sqlite/50896)

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**Author:** [@bbartling](https://discourse.nodered.org/u/bbartling)\
**Replies:** 6\
**Last updated:** [11 September 2021 20:01 UTC](https://discourse.nodered.org/t/display-table-data-from-sqlite/50896 "2021-09-11T20:01:03Z")

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I am tinkering around with an sqlite query which is working but how can I roll this data up onto a table to view through the ui? On the template node does this look right? \<table style="width:100%"\> \<tr\> …

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## [Create a GPS data framing from several points](https://discourse.nodered.org/t/create-a-gps-data-framing-from-several-points/50884)

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**Author:** [@idiot\_du\_village](https://discourse.nodered.org/u/idiot_du_village)\
**Replies:** 2\
**Last updated:** [11 September 2021 19:54 UTC](https://discourse.nodered.org/t/create-a-gps-data-framing-from-several-points/50884 "2021-09-11T19:54:39Z")

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Hello, I made a robot that avoids obstacles with ultrasonic sensors, it works very well. I added a GPS module to make it work outdoors in a given perimeter, it circulates randomly in the determined perimeter avoiding o…

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## [UI table percentage Calculation](https://discourse.nodered.org/t/ui-table-percentage-calculation/50741)

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**Author:** [@sheminasalam](https://discourse.nodered.org/u/sheminasalam)\
**Replies:** 15\
**Last updated:** [11 September 2021 16:36 UTC](https://discourse.nodered.org/t/ui-table-percentage-calculation/50741 "2021-09-11T16:36:01Z")

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I have been experimenting with msg.ui\_control to construct a table of profit and loses. I have been able to do addition of individual columns but now I want to calculate net profit/loss which involves dividing the sum of…

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## [Onkyo 616 Power-stats](https://discourse.nodered.org/t/onkyo-616-power-stats/50889)

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**Author:** [@Wurmi](https://discourse.nodered.org/u/Wurmi)\
**Replies:** 22\
**Last updated:** [11 September 2021 16:12 UTC](https://discourse.nodered.org/t/onkyo-616-power-stats/50889 "2021-09-11T16:12:28Z")

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I want the use the information i get form my AVR 11.9.2021, 14:48:22node: abc38942f12dbb25 eiscp : msg.payload : Object object command: "system-power" argument: "on" iscp\_command: "PWR01" host: "192.168.1.12" port: "601…

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## [Fs-file-lister is not working](https://discourse.nodered.org/t/fs-file-lister-is-not-working/50731)

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**Author:** [@el\_pablo](https://discourse.nodered.org/u/el_pablo)\
**Replies:** 16\
**Last updated:** [11 September 2021 14:19 UTC](https://discourse.nodered.org/t/fs-file-lister-is-not-working/50731 "2021-09-11T14:19:32Z")

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Hi guys, I'm trying to figure out how to make fs-file-lister to work, but it always return 0 even though there's a file named test.txt and a subfolder named dump in the folder I'm looking into. What am I doing wro…

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## [Arduino - Node-red -sensoren - data convert/split](https://discourse.nodered.org/t/arduino-node-red-sensoren-data-convert-split/50880)

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**Author:** [@dick](https://discourse.nodered.org/u/dick)\
**Replies:** 11\
**Last updated:** [11 September 2021 11:14 UTC](https://discourse.nodered.org/t/arduino-node-red-sensoren-data-convert-split/50880 "2021-09-11T11:14:01Z")

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Hello, Arduino gives data to node-red from sensoren 1 DHT11 for temp, hum, hic (heatindex) 2 CO- sensor for CO Arduino with connection to Node-red gives with debug as follows: "hum 38.00% ; temp 24.00°C ; hic 23.45…

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