# Latest

**URL:** https://discourse.nodered.org/latest.md?page=399

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

**Page:** 400

---

## [Dashboard LCD emulator](https://discourse.nodered.org/t/dashboard-lcd-emulator/75023)

<div class="topic-metadata">

**Author:** [@aduroch](https://discourse.nodered.org/u/aduroch)\
**Replies:** 1\
**Last updated:** [11 February 2023 06:30 UTC](https://discourse.nodered.org/t/dashboard-lcd-emulator/75023 "2023-02-11T06:30:48Z")

</div>

Hello, I would like to know if there is a conversion script or a conbtrib node to reproduce LCD20x4-I2C visual content on dashboard, using the same function that I use to run the physical LCD screen. msg.payload = { m…

---

## [Protobuf Wire format is invalid](https://discourse.nodered.org/t/protobuf-wire-format-is-invalid/74956)

<div class="topic-metadata">

**Author:** [@JohnnyPicnic](https://discourse.nodered.org/u/JohnnyPicnic)\
**Replies:** 1\
**Last updated:** [10 February 2023 22:49 UTC](https://discourse.nodered.org/t/protobuf-wire-format-is-invalid/74956 "2023-02-10T22:49:16Z")

</div>

Hello, I'm having trouble decoding a protobuf message. I'm not sure if it how i'm injecting the data or something with my protobuf settings. The message is: 0a0412345678100118b4014001220c080110bced949f0620002a00220c080…

---

## [Need help in Nested JSON object](https://discourse.nodered.org/t/need-help-in-nested-json-object/75010)

<div class="topic-metadata">

**Author:** [@dhanushmh](https://discourse.nodered.org/u/dhanushmh)\
**Replies:** 8\
**Last updated:** [10 February 2023 22:23 UTC](https://discourse.nodered.org/t/need-help-in-nested-json-object/75010 "2023-02-10T22:23:48Z")

</div>

I am trying to collect sensor data from ESP32 to RPi. I am getting a packet of data containing strings in intervals of 10secs(this can be changed). I am getting sensor data, along with geolocation and device ID which co…

---

## [Help with switching msg.payload based on serial buffer input](https://discourse.nodered.org/t/help-with-switching-msg-payload-based-on-serial-buffer-input/75012)

<div class="topic-metadata">

**Author:** [@mzychowicz](https://discourse.nodered.org/u/mzychowicz)\
**Replies:** 0\
**Last updated:** [10 February 2023 20:35 UTC](https://discourse.nodered.org/t/help-with-switching-msg-payload-based-on-serial-buffer-input/75012 "2023-02-10T20:35:01Z")

</div>

I am currently simulating devices via node red for codesys and receiving serial buffers. I would like to change the msg.payload based on the different buffer inputs. I am having trouble with the syntax. Please see the ph…

---

## [Recommendations on how to do logging through function nodes](https://discourse.nodered.org/t/recommendations-on-how-to-do-logging-through-function-nodes/74898)

<div class="topic-metadata">

**Author:** [@brolaugh](https://discourse.nodered.org/u/brolaugh)\
**Replies:** 6\
**Last updated:** [10 February 2023 20:23 UTC](https://discourse.nodered.org/t/recommendations-on-how-to-do-logging-through-function-nodes/74898 "2023-02-10T20:23:07Z")

</div>

I've read through the docs about logging here Logging : Node-RED where it mentions that there's several log levels. However... I haven't found how I can actually log to these different levels in a function node. What I h…

---

## [Time Calculation](https://discourse.nodered.org/t/time-calculation/74980)

<div class="topic-metadata">

**Author:** [@grant.cpt](https://discourse.nodered.org/u/grant.cpt)\
**Replies:** 2\
**Last updated:** [10 February 2023 20:21 UTC](https://discourse.nodered.org/t/time-calculation/74980 "2023-02-10T20:21:16Z")

</div>

Hi All, I've got a use case I want to try and solve. And that's calculating the time between for a value to change from x to y. Starting Temperature: 50 Time: 10:00:00 Next value: 51 Time: 10:05:00 So the output wi…

---

## [Gauge line width](https://discourse.nodered.org/t/gauge-line-width/74963)

<div class="topic-metadata">

**Author:** [@rxdeath](https://discourse.nodered.org/u/rxdeath)\
**Replies:** 5\
**Last updated:** [10 February 2023 19:01 UTC](https://discourse.nodered.org/t/gauge-line-width/74963 "2023-02-10T19:01:22Z")

</div>

i'm using artless gauge and on a previous project i have increased the line width permanently past the 3,5,7 px limit in the gauge. i get options up to 25px. on my new project i'm having problems doing that, as the opt…

---

## [Otdm-yss ver: 0.3 - Establishing communication](https://discourse.nodered.org/t/otdm-yss-ver-0-3-establishing-communication/74063)

<div class="topic-metadata">

**Author:** [@yOyOeK1](https://discourse.nodered.org/u/yOyOeK1)\
**Replies:** 1\
**Last updated:** [10 February 2023 18:49 UTC](https://discourse.nodered.org/t/otdm-yss-ver-0-3-establishing-communication/74063 "2023-02-10T18:49:00Z")

</div>

Share your project is a good spot? There is a update 0.3 of otdm-yss. Now it connect web layer to shell layer by HTTP API. Displays data coming from dpkg-query. To do otdm magic. All in details: oiyshTerminal/nodeRedF…

---

## [Join node gives different values when run. Assumption was that it would be same?](https://discourse.nodered.org/t/join-node-gives-different-values-when-run-assumption-was-that-it-would-be-same/74999)

<div class="topic-metadata">

**Author:** [@Soiski](https://discourse.nodered.org/u/Soiski)\
**Replies:** 5\
**Last updated:** [10 February 2023 17:06 UTC](https://discourse.nodered.org/t/join-node-gives-different-values-when-run-assumption-was-that-it-would-be-same/74999 "2023-02-10T17:06:31Z")

</div>

Hi, As many other I have barked my path to use nordpool data to find cheapest hours for electricity. The part getting the data, separating it and grouping it to 3hrs intervals (with 2 hrs overlap) works , but when it sho…

---

## [How to set the \_field tag to write to influxdb using the influxdb out node?](https://discourse.nodered.org/t/how-to-set-the-field-tag-to-write-to-influxdb-using-the-influxdb-out-node/74990)

<div class="topic-metadata">

**Author:** [@HerrLux](https://discourse.nodered.org/u/HerrLux)\
**Replies:** 4\
**Last updated:** [10 February 2023 17:05 UTC](https://discourse.nodered.org/t/how-to-set-the-field-tag-to-write-to-influxdb-using-the-influxdb-out-node/74990 "2023-02-10T17:05:20Z")

</div>

Hey everyone, I'm new to node-red and already learned a lot from browsing this forum. I have a little flow that right now uses a single object to write a value into influx db using the influxdb out node. My problem is…

---

## [Display POI on map taken from db and updated in realtime](https://discourse.nodered.org/t/display-poi-on-map-taken-from-db-and-updated-in-realtime/74997)

<div class="topic-metadata">

**Author:** [@Elberto](https://discourse.nodered.org/u/Elberto)\
**Replies:** 0\
**Last updated:** [10 February 2023 15:19 UTC](https://discourse.nodered.org/t/display-poi-on-map-taken-from-db-and-updated-in-realtime/74997 "2023-02-10T15:19:15Z")

</div>

Hi to all. I need to display POI, stored in db, on map but I am a beginner and I have many problems... I have POI coordinates and status stored on db, when I load map I need to display POIs regardless status (on status…

---

## [How read array?](https://discourse.nodered.org/t/how-read-array/74948)

<div class="topic-metadata">

**Author:** [@Elberto](https://discourse.nodered.org/u/Elberto)\
**Replies:** 3\
**Last updated:** [10 February 2023 15:43 UTC](https://discourse.nodered.org/t/how-read-array/74948 "2023-02-10T15:43:40Z")

</div>

Hi to all! I apologize but I am still newbie about nred... I need to display data on map, so I started reading data from sqlite table. I can correctly query my table using function but output is: array\[38\] 0: object …

---

## [I want to inject a timestamp in my existing flow after every 10 seconds](https://discourse.nodered.org/t/i-want-to-inject-a-timestamp-in-my-existing-flow-after-every-10-seconds/74982)

<div class="topic-metadata">

**Author:** [@Manish131rai](https://discourse.nodered.org/u/Manish131rai)\
**Replies:** 6\
**Last updated:** [10 February 2023 15:42 UTC](https://discourse.nodered.org/t/i-want-to-inject-a-timestamp-in-my-existing-flow-after-every-10-seconds/74982 "2023-02-10T15:42:01Z")

</div>

i want to actually refresh my data in the template node after every 60 seconds but it shows an error in debug node as (no object response) my flow : \[http request\] ------\>\[function node\](contains code to generate timest…

---

## [Automate clicking buttons on website](https://discourse.nodered.org/t/automate-clicking-buttons-on-website/74996)

<div class="topic-metadata">

**Author:** [@Romprod](https://discourse.nodered.org/u/Romprod)\
**Replies:** 0\
**Last updated:** [10 February 2023 15:09 UTC](https://discourse.nodered.org/t/automate-clicking-buttons-on-website/74996 "2023-02-10T15:09:29Z")

</div>

I'd like to automatically a daily visit to a website and click through each of the buttons but I'm unsure if this is possible, I was hoping that Nodered could be the solution for this. The website is flashscore.com and …

---

## [Dynamically changing the whole dashboard (colors, dark/light mode)](https://discourse.nodered.org/t/dynamically-changing-the-whole-dashboard-colors-dark-light-mode/49352)

<div class="topic-metadata">

**Author:** [@ant](https://discourse.nodered.org/u/ant)\
**Replies:** 14\
**Last updated:** [10 February 2023 13:46 UTC](https://discourse.nodered.org/t/dynamically-changing-the-whole-dashboard-colors-dark-light-mode/49352 "2023-02-10T13:46:46Z")

</div>

I figured I'd share this since I've seen a lot of threads/questions about how to dynamically change the colors of a dashboard using CSS in the head section, it's far from perfect and I'm not really a front-end developer …

---

## [Unit testing nodes that connect to remote hosts](https://discourse.nodered.org/t/unit-testing-nodes-that-connect-to-remote-hosts/74969)

<div class="topic-metadata">

**Author:** [@dudest](https://discourse.nodered.org/u/dudest)\
**Replies:** 1\
**Last updated:** [10 February 2023 11:55 UTC](https://discourse.nodered.org/t/unit-testing-nodes-that-connect-to-remote-hosts/74969 "2023-02-10T11:55:29Z")

</div>

Greetings all, I'm interested to know you're approach to unit testing nodes that connect to remote hosts. Do you emulate them with tcp in/out nodes? do you omit unit testing altogether and test manually? Please share …

---

## [How to make a flow wait before triggering a node once more](https://discourse.nodered.org/t/how-to-make-a-flow-wait-before-triggering-a-node-once-more/74992)

<div class="topic-metadata">

**Author:** [@dcaccount](https://discourse.nodered.org/u/dcaccount)\
**Replies:** 1\
**Last updated:** [10 February 2023 11:46 UTC](https://discourse.nodered.org/t/how-to-make-a-flow-wait-before-triggering-a-node-once-more/74992 "2023-02-10T11:46:41Z")

</div>

Hello, I am pretty new to Node Red so I kindly ask for your help. I have an intrusion video alarm that when triggered sends an email to my Raspberry server. I have created a simple flow that checks the email received …

---

## [Nodered version 3.0](https://discourse.nodered.org/t/nodered-version-3-0/74985)

<div class="topic-metadata">

**Author:** [@daak](https://discourse.nodered.org/u/daak)\
**Replies:** 1\
**Last updated:** [10 February 2023 10:09 UTC](https://discourse.nodered.org/t/nodered-version-3-0/74985 "2023-02-10T10:09:10Z")

</div>

Hello I'm a beginner on Nodered and I can't connect my remotec on Nodered, I receive the following message"you must be logged in to deploy changes and " could not fetch nodes. Thank you

---

## [Stackhero-MYSql - Query not working](https://discourse.nodered.org/t/stackhero-mysql-query-not-working/74938)

<div class="topic-metadata">

**Author:** [@nico25](https://discourse.nodered.org/u/nico25)\
**Replies:** 2\
**Last updated:** [10 February 2023 10:07 UTC](https://discourse.nodered.org/t/stackhero-mysql-query-not-working/74938 "2023-02-10T10:07:49Z")

</div>

Hi everyone, I have a very strange problem with the Stackhero-MySQL-Node. When I pass the query using a simple inject node, it works and I get this reply from the server: {"\_msgid":"d855ae7a356ff9bc","topic":"SELECT \`…

---

## [Rflink data converting](https://discourse.nodered.org/t/rflink-data-converting/74900)

<div class="topic-metadata">

**Author:** [@dick](https://discourse.nodered.org/u/dick)\
**Replies:** 4\
**Last updated:** [10 February 2023 07:47 UTC](https://discourse.nodered.org/t/rflink-data-converting/74900 "2023-02-10T07:47:43Z")

</div>

rflink gives data from weatherstation (as bought is some stores) e.g alecto /ws1700/ cresta/ oregon/ auriol and many others data: 20;20;Oregon Temp;ID=9610;TEMP=00de;BAT=OK; 20;21;Cresta;ID=3401;TEMP=00dd;BAT=OK; 2…

---

## [Conversion and display milliseconds in the format "dd hh mm ss"](https://discourse.nodered.org/t/conversion-and-display-milliseconds-in-the-format-dd-hh-mm-ss/74951)

<div class="topic-metadata">

**Author:** [@F11](https://discourse.nodered.org/u/F11)\
**Replies:** 6\
**Last updated:** [10 February 2023 06:24 UTC](https://discourse.nodered.org/t/conversion-and-display-milliseconds-in-the-format-dd-hh-mm-ss/74951 "2023-02-10T06:24:10Z")

</div>

Hello, I have a problem with converting and displaying milliseconds in the format dd hh mm ss. I have 3 phases L1 L2 L3 and I want to add them together. This works so far, but with the conversion into the time format …

---

## [How to convert a string](https://discourse.nodered.org/t/how-to-convert-a-string/74927)

<div class="topic-metadata">

**Author:** [@asdrubouscaras](https://discourse.nodered.org/u/asdrubouscaras)\
**Replies:** 2\
**Last updated:** [10 February 2023 04:40 UTC](https://discourse.nodered.org/t/how-to-convert-a-string/74927 "2023-02-10T04:40:02Z")

</div>

Hi, I have a Novus device which has RS-485 communication and works as a modbus gateway. It is possible to read/write to slave devices connected to the gateway over MQTT publish. The device return in another topic a pa…

---

## [Working with weather station data JSON](https://discourse.nodered.org/t/working-with-weather-station-data-json/74929)

<div class="topic-metadata">

**Author:** [@HobbyFarmer](https://discourse.nodered.org/u/HobbyFarmer)\
**Replies:** 4\
**Last updated:** [10 February 2023 01:18 UTC](https://discourse.nodered.org/t/working-with-weather-station-data-json/74929 "2023-02-10T01:18:17Z")

</div>

What is the best way to pull say the temperature out of this JSON object and drop it into msg.payload. So far the examples I have found are more down the line of multiple devices all sending temperature and separating ou…

---

## [Unit testing configuration node](https://discourse.nodered.org/t/unit-testing-configuration-node/74360)

<div class="topic-metadata">

**Author:** [@donatelloraphael](https://discourse.nodered.org/u/donatelloraphael)\
**Replies:** 1\
**Last updated:** [10 February 2023 00:47 UTC](https://discourse.nodered.org/t/unit-testing-configuration-node/74360 "2023-02-10T00:47:02Z")

</div>

Is it possible to unit test config nodes in isolation? If so, how do I go about doing it?

---

## [Node-Red showing error in Function Node but it works correctly](https://discourse.nodered.org/t/node-red-showing-error-in-function-node-but-it-works-correctly/74967)

<div class="topic-metadata">

**Author:** [@CAG](https://discourse.nodered.org/u/CAG)\
**Replies:** 2\
**Last updated:** [9 February 2023 22:50 UTC](https://discourse.nodered.org/t/node-red-showing-error-in-function-node-but-it-works-correctly/74967 "2023-02-09T22:50:14Z")

</div>

I have this code in a function node. It shows an error but I checked in Notepad++ and not issues. It does deploy and seems to run correctly. Any ideas on what the error is? // check payload if (msg.payload === "") {…

---

## [Apache2 reverse proxy mp4](https://discourse.nodered.org/t/apache2-reverse-proxy-mp4/74587)

<div class="topic-metadata">

**Author:** [@EIKSEU](https://discourse.nodered.org/u/EIKSEU)\
**Replies:** 8\
**Last updated:** [9 February 2023 22:04 UTC](https://discourse.nodered.org/t/apache2-reverse-proxy-mp4/74587 "2023-02-09T22:04:11Z")

</div>

Hello, I use kevinGodell/node-red-mp4frag in my flows, which also works well, now I have made nr accessible via a reserve proxy ssl, which also works so far, except that no videos are played, how can I fix this? VM296:…

---

## [How to turn on RGB LED based on Temp from BME below 20 C](https://discourse.nodered.org/t/how-to-turn-on-rgb-led-based-on-temp-from-bme-below-20-c/74916)

<div class="topic-metadata">

**Author:** [@kstenek](https://discourse.nodered.org/u/kstenek)\
**Replies:** 4\
**Last updated:** [9 February 2023 20:54 UTC](https://discourse.nodered.org/t/how-to-turn-on-rgb-led-based-on-temp-from-bme-below-20-c/74916 "2023-02-09T20:54:32Z")

</div>

I am a teacher and pretty new to NR. I was given a curriculum that has a challenge that I am not sure how to complete. We want our RGB LED to turn on when the temperature reading from a BME280 is below a certain point. W…

---

## [HTTP request GET - JSON parsing error](https://discourse.nodered.org/t/http-request-get-json-parsing-error/74738)

<div class="topic-metadata">

**Author:** [@bonito](https://discourse.nodered.org/u/bonito)\
**Replies:** 16\
**Last updated:** [9 February 2023 20:52 UTC](https://discourse.nodered.org/t/http-request-get-json-parsing-error/74738 "2023-02-09T20:52:36Z")

</div>

Hi I am having trouble to get JSON content into Node-red. I think that I have identified the problem is in HTTP request. If I set to as parsed JSON object. It returns as JSON parse error. If I set it to retuns as UTF-…

---

## [Career Openings @ FlowForge](https://discourse.nodered.org/t/career-openings-flowforge/74961)

<div class="topic-metadata">

**Author:** [@iskerrett](https://discourse.nodered.org/u/iskerrett)\
**Replies:** 0\
**Last updated:** [9 February 2023 19:09 UTC](https://discourse.nodered.org/t/career-openings-flowforge/74961 "2023-02-09T19:09:00Z")

</div>

FlowForge has a number of career openings to join our team, including: Developer Advocate - Manufacturing & Industrial Automation DevOps Engineer NodeJS Developer Visual Designer FlowForge is the company behind Node-R…

---

## [Limiting repeat notifications](https://discourse.nodered.org/t/limiting-repeat-notifications/74947)

<div class="topic-metadata">

**Author:** [@Sitruk](https://discourse.nodered.org/u/Sitruk)\
**Replies:** 2\
**Last updated:** [9 February 2023 18:04 UTC](https://discourse.nodered.org/t/limiting-repeat-notifications/74947 "2023-02-09T18:04:49Z")

</div>

Ok, I'm fairly new to Node-Red, but I have used flow based automation before. I know enough to tinker and make some sloppy flows. Right now I'm having an issue with limiting repeat notification triggers. I know I'm missi…

[Previous page](https://discourse.nodered.org/latest.md?page=398)

[Next page](https://discourse.nodered.org/latest.md?page=400)