# Latest

**URL:** https://discourse.nodered.org/latest.md?page=458

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

**Page:** 459

---

## [Unable to install modules - permission denied](https://discourse.nodered.org/t/unable-to-install-modules-permission-denied/70804)

<div class="topic-metadata">

**Author:** [@Ccheese4](https://discourse.nodered.org/u/Ccheese4)\
**Replies:** 0\
**Last updated:** [18 November 2022 00:58 UTC](https://discourse.nodered.org/t/unable-to-install-modules-permission-denied/70804 "2022-11-18T00:58:54Z")

</div>

I have attempted to install two modules recently. node-red-contrib-sun-position, and node-red-dashboard. Both have failed due to the same error. Here is the output from my log file: 2022-11-18T00:50:37.753Z Install : no…

---

## [Connecting to HIVE MQ Cloud](https://discourse.nodered.org/t/connecting-to-hive-mq-cloud/70789)

<div class="topic-metadata">

**Author:** [@sweetwater](https://discourse.nodered.org/u/sweetwater)\
**Replies:** 3\
**Last updated:** [17 November 2022 22:33 UTC](https://discourse.nodered.org/t/connecting-to-hive-mq-cloud/70789 "2022-11-17T22:33:01Z")

</div>

I have setup a HIVE MQ cluster as my MQTT Broker However, I am having problem establishing a connection. The MQTT just hangs at "connecting". Note, using the PUBLIC HIVE MQTT broker work ok. Its just the HIVE MQ that …

---

## [\[ANNOUNCE\] node-red-contrib-http-logger: version 3.0.0 beta](https://discourse.nodered.org/t/announce-node-red-contrib-http-logger-version-3-0-0-beta/70798)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 0\
**Last updated:** [17 November 2022 22:22 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-http-logger-version-3-0-0-beta/70798 "2022-11-17T22:22:41Z")

</div>

Hi folks, Quite some time ago that I made an announcement here... A beta 3.0.0 version is now available on the upgrade-to-mswjs branch of my node-red-contrib-http-logger Github repository. I needed this migration alre…

---

## [Change node to set value for each object in array with if exeption](https://discourse.nodered.org/t/change-node-to-set-value-for-each-object-in-array-with-if-exeption/70671)

<div class="topic-metadata">

**Author:** [@danieleronchi](https://discourse.nodered.org/u/danieleronchi)\
**Replies:** 3\
**Last updated:** [17 November 2022 19:44 UTC](https://discourse.nodered.org/t/change-node-to-set-value-for-each-object-in-array-with-if-exeption/70671 "2022-11-17T19:44:06Z")

</div>

Hi to everyone, i need a little help. I found this intresting discussion Change node to set value for each object in array in the forum and it helps a lot but i need to change the value of the object of the array only w…

---

## [MQTT node - messages received twice!?](https://discourse.nodered.org/t/mqtt-node-messages-received-twice/70727)

<div class="topic-metadata">

**Author:** [@PPASSL](https://discourse.nodered.org/u/PPASSL)\
**Replies:** 23\
**Last updated:** [17 November 2022 18:04 UTC](https://discourse.nodered.org/t/mqtt-node-messages-received-twice/70727 "2022-11-17T18:04:46Z")

</div>

Using NR v3.0.2 I'm using a MQTT in Node and keep getting the messages received twice. It might be a trivial issue... tried changing the QOS from the default 0 to 2 but didn't change anything. Thought it was the broke…

---

## [Node and plugin in same package.json](https://discourse.nodered.org/t/node-and-plugin-in-same-package-json/70766)

<div class="topic-metadata">

**Author:** [@alevher](https://discourse.nodered.org/u/alevher)\
**Replies:** 3\
**Last updated:** [17 November 2022 17:21 UTC](https://discourse.nodered.org/t/node-and-plugin-in-same-package-json/70766 "2022-11-17T17:21:26Z")

</div>

Hello everyone, i'm trying to prepare the package for my own set of nodes and i've encountered a problem. I have a plugin node and various other nodes and i want them to be installed in a single package but this keeps r…

---

## [Viability question](https://discourse.nodered.org/t/viability-question/11266)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 39\
**Last updated:** [17 November 2022 17:21 UTC](https://discourse.nodered.org/t/viability-question/11266 "2022-11-17T17:21:01Z")

</div>

(Probably not the best/right place to ask, but.....) I'm stuck with which way to go: I have NR running on my RPI and it is coping with it, but it is headless and is the "brains" to the system. I need a display system. …

---

## [Publish Nodes Question](https://discourse.nodered.org/t/publish-nodes-question/70587)

<div class="topic-metadata">

**Author:** [@alevher](https://discourse.nodered.org/u/alevher)\
**Replies:** 10\
**Last updated:** [17 November 2022 17:20 UTC](https://discourse.nodered.org/t/publish-nodes-question/70587 "2022-11-17T17:20:35Z")

</div>

Hello Everyone! I have some questions while i'm preparing myself to publish my own set of nodes. Basically i developed the nodes indipendently with its own package.json and here comes the first question: -Is it possib…

---

## [Help with nodejs changes to new Buffer()](https://discourse.nodered.org/t/help-with-nodejs-changes-to-new-buffer/70753)

<div class="topic-metadata">

**Author:** [@emlarsen](https://discourse.nodered.org/u/emlarsen)\
**Replies:** 4\
**Last updated:** [17 November 2022 17:07 UTC](https://discourse.nodered.org/t/help-with-nodejs-changes-to-new-buffer/70753 "2022-11-17T17:07:10Z")

</div>

I have a function node that extracts some numbers from binary data. It has been running for years wonderfully but of course I decided to upgrade nodejs and nodered and new Buffer is no longer working and I can seem to un…

---

## [Fuel Tank Level](https://discourse.nodered.org/t/fuel-tank-level/70661)

<div class="topic-metadata">

**Author:** [@pierrot](https://discourse.nodered.org/u/pierrot)\
**Replies:** 23\
**Last updated:** [17 November 2022 16:38 UTC](https://discourse.nodered.org/t/fuel-tank-level/70661 "2022-11-17T16:38:59Z")

</div>

Hello all anyone can help with his experience in installing fuel level sensor for a fuel tank ? there is the contactless level sensor but dont know if it will work with rpi - node red

---

## [Template not making use of variables](https://discourse.nodered.org/t/template-not-making-use-of-variables/70737)

<div class="topic-metadata">

**Author:** [@adamfenn28](https://discourse.nodered.org/u/adamfenn28)\
**Replies:** 6\
**Last updated:** [17 November 2022 15:46 UTC](https://discourse.nodered.org/t/template-not-making-use-of-variables/70737 "2022-11-17T15:46:00Z")

</div>

I'm attempting to use the node-red-dashboard template to display an embed that uses to configurable parameters. I have a javascript function that passes those into the template, but I cannot get the template to parse th…

---

## [Delay Node : Enhancement : msg.flush or msg.reset by Topic](https://discourse.nodered.org/t/delay-node-enhancement-msg-flush-or-msg-reset-by-topic/70526)

<div class="topic-metadata">

**Author:** [@IanH](https://discourse.nodered.org/u/IanH)\
**Replies:** 3\
**Last updated:** [17 November 2022 15:40 UTC](https://discourse.nodered.org/t/delay-node-enhancement-msg-flush-or-msg-reset-by-topic/70526 "2022-11-17T15:40:55Z")

</div>

This was raised before by Flush delay node by topic and there was some agreement as it was a good idea and then closed a year ago with no action so I will raise it again (and add msg.reset to get same treatment) I have …

---

## [Filter after Counter](https://discourse.nodered.org/t/filter-after-counter/70048)

<div class="topic-metadata">

**Author:** [@ELParreira](https://discourse.nodered.org/u/ELParreira)\
**Replies:** 8\
**Last updated:** [17 November 2022 15:33 UTC](https://discourse.nodered.org/t/filter-after-counter/70048 "2022-11-17T15:33:03Z")

</div>

Hello to all, I'm having a brain meltdown since I have a code to send error messages, I want to receive a message after 3 errors, so I introduced a counter and a filter. It warns when I have 3 error but not when I stop…

---

## [SOLVED : NODE-RED crash while restarting Postgres service in WINDOWS!](https://discourse.nodered.org/t/solved-node-red-crash-while-restarting-postgres-service-in-windows/70777)

<div class="topic-metadata">

**Author:** [@Josh](https://discourse.nodered.org/u/Josh)\
**Replies:** 2\
**Last updated:** [17 November 2022 15:17 UTC](https://discourse.nodered.org/t/solved-node-red-crash-while-restarting-postgres-service-in-windows/70777 "2022-11-17T15:17:21Z")

</div>

Case: The node "node-red-contrib-postgresql" when deployed in flow works smooth. But when the postgres service is stopped for any reasons. The node causes the whole nodered to crash, resulting in this error : error: te…

---

## [MQTT won't send stop command to ffmpeg spawn node](https://discourse.nodered.org/t/mqtt-wont-send-stop-command-to-ffmpeg-spawn-node/70290)

<div class="topic-metadata">

**Author:** [@jorymathis13](https://discourse.nodered.org/u/jorymathis13)\
**Replies:** 14\
**Last updated:** [17 November 2022 14:48 UTC](https://discourse.nodered.org/t/mqtt-wont-send-stop-command-to-ffmpeg-spawn-node/70290 "2022-11-17T14:48:40Z")

</div>

Hey @kevinGodell could you please help me again sir? I'm using a function node with an MQTT IN node attached. I can send an MQTT messgae to "start" the ffmpeg spawn node of yours, but when I try to stop the ffmpeg spawn …

---

## [How to use RBE node with object](https://discourse.nodered.org/t/how-to-use-rbe-node-with-object/70767)

<div class="topic-metadata">

**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 4\
**Last updated:** [17 November 2022 13:38 UTC](https://discourse.nodered.org/t/how-to-use-rbe-node-with-object/70767 "2022-11-17T13:38:47Z")

</div>

I have object var a = { "a1": 0, "a2": 0, "a3": 0, "a4": 0, "a5": 0, "a6": 0, "a7": 1, } How to check changed value with RBE. How to create new topic for each value and send to RBE? \[ { "id": "6404…

---

## [Unit 8 CRC (look up table)](https://discourse.nodered.org/t/unit-8-crc-look-up-table/70720)

<div class="topic-metadata">

**Author:** [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Replies:** 1\
**Last updated:** [17 November 2022 12:17 UTC](https://discourse.nodered.org/t/unit-8-crc-look-up-table/70720 "2022-11-17T12:17:19Z")

</div>

Hi Serial Port communication string is composed of 6 bytes, detail is shown below: \[BYTE 0 = Register\], \[BYTE 1 BYTE 2 BYTE 3 BYTE 4 = 32 bit data\], \[BYTE 5 = CRC\] Byte 5 contains checksum, calculated from byte 0 to b…

---

## [Is there some nodes for a similar automation like Zapier that is cheaper?](https://discourse.nodered.org/t/is-there-some-nodes-for-a-similar-automation-like-zapier-that-is-cheaper/70756)

<div class="topic-metadata">

**Author:** [@funhall](https://discourse.nodered.org/u/funhall)\
**Replies:** 2\
**Last updated:** [17 November 2022 09:31 UTC](https://discourse.nodered.org/t/is-there-some-nodes-for-a-similar-automation-like-zapier-that-is-cheaper/70756 "2022-11-17T09:31:45Z")

</div>

Is there some nodes for a similar automation like Zapier that is cheaper?

---

## [How to read/write in MS Access table by using node red](https://discourse.nodered.org/t/how-to-read-write-in-ms-access-table-by-using-node-red/70380)

<div class="topic-metadata">

**Author:** [@haladriel](https://discourse.nodered.org/u/haladriel)\
**Replies:** 9\
**Last updated:** [17 November 2022 09:27 UTC](https://discourse.nodered.org/t/how-to-read-write-in-ms-access-table-by-using-node-red/70380 "2022-11-17T09:27:22Z")

</div>

Hello everyone. I have an application where i need to log the data in MS Access and later from other table i need to read other data. But i am not getting any node related to MS Access. I have the Description, the UID,…

---

## [Can I ask for a link or process on how to use Node Red and MQTT](https://discourse.nodered.org/t/can-i-ask-for-a-link-or-process-on-how-to-use-node-red-and-mqtt/70558)

<div class="topic-metadata">

**Author:** [@Ceowens](https://discourse.nodered.org/u/Ceowens)\
**Replies:** 5\
**Last updated:** [17 November 2022 08:50 UTC](https://discourse.nodered.org/t/can-i-ask-for-a-link-or-process-on-how-to-use-node-red-and-mqtt/70558 "2022-11-17T08:50:56Z")

</div>

I'm a beginner with Node Red and MQTT, but I've made some good strides. I have two raspberry pis that I downloaded MQTT and Node Red on. I have simple Nodes that are currently sending the recurring outputs from my only …

---

## [Date & Time not shown correctly in Dashboard Chart](https://discourse.nodered.org/t/date-time-not-shown-correctly-in-dashboard-chart/70283)

<div class="topic-metadata">

**Author:** [@msashraf](https://discourse.nodered.org/u/msashraf)\
**Replies:** 12\
**Last updated:** [17 November 2022 08:53 UTC](https://discourse.nodered.org/t/date-time-not-shown-correctly-in-dashboard-chart/70283 "2022-11-17T08:53:46Z")

</div>

I am storing certain data in MySql from Node Red. Now as I want to visualize data in chart in dashboard it is showing wrong date and time in graph. Whereas the X & Y titles are shown correctly.

---

## [I search for a Solution for Power Consumption Fallback](https://discourse.nodered.org/t/i-search-for-a-solution-for-power-consumption-fallback/70332)

<div class="topic-metadata">

**Author:** [@Starfoxfs](https://discourse.nodered.org/u/Starfoxfs)\
**Replies:** 9\
**Last updated:** [17 November 2022 08:05 UTC](https://discourse.nodered.org/t/i-search-for-a-solution-for-power-consumption-fallback/70332 "2022-11-17T08:05:23Z")

</div>

Hi, i search for a Solution to restore the Power Consumption if my Shelly get a powerloss and the Total Power Consumption falls back to 0 So far I've made it this far: I have a MQTT IN with the actually results of the…

---

## [Can't connect to Zigbee2MQTT MQTT Server](https://discourse.nodered.org/t/cant-connect-to-zigbee2mqtt-mqtt-server/70743)

<div class="topic-metadata">

**Author:** [@mikeg-de](https://discourse.nodered.org/u/mikeg-de)\
**Replies:** 6\
**Last updated:** [17 November 2022 07:27 UTC](https://discourse.nodered.org/t/cant-connect-to-zigbee2mqtt-mqtt-server/70743 "2022-11-17T07:27:10Z")

</div>

Hi, I have quite some troubles connecting to the MQTT Server from Zigbee2MQTT. I tried different methods but pretty much always get a "Connection refused" or MQTT offline. Hope anyone can help me spot my mistake o…

---

## [Store the old data to use latter](https://discourse.nodered.org/t/store-the-old-data-to-use-latter/70749)

<div class="topic-metadata">

**Author:** [@Jhankhana](https://discourse.nodered.org/u/Jhankhana)\
**Replies:** 1\
**Last updated:** [17 November 2022 05:44 UTC](https://discourse.nodered.org/t/store-the-old-data-to-use-latter/70749 "2022-11-17T05:44:16Z")

</div>

Hello there, I Need your help! How can I store the readings of a particular variables at a particular time and then use that reading after a day to perform math things and display them on the dashboard? Thanks in advan…

---

## [How to test is msg.payload is a number or not?](https://discourse.nodered.org/t/how-to-test-is-msg-payload-is-a-number-or-not/70741)

<div class="topic-metadata">

**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 2\
**Last updated:** [17 November 2022 05:14 UTC](https://discourse.nodered.org/t/how-to-test-is-msg-payload-is-a-number-or-not/70741 "2022-11-17T05:14:48Z")

</div>

I have a flow that reads a temperature sensor in Home Assistant and puts the numeric value in a flow variable. Works fine. However, if something happens to the sensor, the reading becomes "unavailable". How can I dete…

---

## [Node to wrap h3-js from https://github.com/uber/h3-js](https://discourse.nodered.org/t/node-to-wrap-h3-js-from-https-github-com-uber-h3-js/70598)

<div class="topic-metadata">

**Author:** [@mrdvt92](https://discourse.nodered.org/u/mrdvt92)\
**Replies:** 5\
**Last updated:** [17 November 2022 03:41 UTC](https://discourse.nodered.org/t/node-to-wrap-h3-js-from-https-github-com-uber-h3-js/70598 "2022-11-17T03:41:07Z")

</div>

I'd like to add Uber H3 cells to my node-red-contrib-web-worldmap display. But, I'm not quite sure how to take a JavaScript lib and then wrap it with a flow node. Ideally, what I like to figure out is how to take the l…

---

## ["Error: Error 7: Missing or insufficient permissions."](https://discourse.nodered.org/t/error-error-7-missing-or-insufficient-permissions/70747)

<div class="topic-metadata">

**Author:** [@hoang](https://discourse.nodered.org/u/hoang)\
**Replies:** 0\
**Last updated:** [17 November 2022 02:51 UTC](https://discourse.nodered.org/t/error-error-7-missing-or-insufficient-permissions/70747 "2022-11-17T02:51:33Z")

</div>

I use firestore to data and have a error like this: Error: 7 PERMISSION\_DENIED: Missing or insufficient permissions. I dont know fixed. Can anyone help me?

---

## [CSV to live/interactive line graph](https://discourse.nodered.org/t/csv-to-live-interactive-line-graph/70094)

<div class="topic-metadata">

**Author:** [@cookin83](https://discourse.nodered.org/u/cookin83)\
**Replies:** 2\
**Last updated:** [17 November 2022 02:12 UTC](https://discourse.nodered.org/t/csv-to-live-interactive-line-graph/70094 "2022-11-17T02:12:33Z")

</div>

I'm an absolute noob to Node Red and I'm not sure where to start with this part of my project. I have a Raspberry Pi Pico W that is sending a MQTT feed with temperature and humidity to a Raspberry Pi running Node Red. No…

---

## [Calculates days between 2 dates excluding weekends and holidays](https://discourse.nodered.org/t/calculates-days-between-2-dates-excluding-weekends-and-holidays/70604)

<div class="topic-metadata">

**Author:** [@ecombs](https://discourse.nodered.org/u/ecombs)\
**Replies:** 9\
**Last updated:** [17 November 2022 01:52 UTC](https://discourse.nodered.org/t/calculates-days-between-2-dates-excluding-weekends-and-holidays/70604 "2022-11-17T01:52:46Z")

</div>

Hello everyone, I'm trying to calculate the number of days between two date excluding weekends and holidays. I can get the normal amount of days, however it doesn't account for weekends or holidays. I've look at just a…

---

## [Count messages // do something // reset // howt to simplify flow](https://discourse.nodered.org/t/count-messages-do-something-reset-howt-to-simplify-flow/70689)

<div class="topic-metadata">

**Author:** [@DaaD](https://discourse.nodered.org/u/DaaD)\
**Replies:** 6\
**Last updated:** [16 November 2022 23:24 UTC](https://discourse.nodered.org/t/count-messages-do-something-reset-howt-to-simplify-flow/70689 "2022-11-16T23:24:12Z")

</div>

I have a home assistant feature that does fail sometimes at the first command, so i wanted a flow that when this happens there are 3 retries before another action takes place (msg + restart application). I've cobbled so…

[Previous page](https://discourse.nodered.org/latest.md?page=457)

[Next page](https://discourse.nodered.org/latest.md?page=459)