# Latest

**URL:** https://discourse.nodered.org/latest.md?page=800

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

**Page:** 801

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## [Node-red doesnt deploy after connecting gpio pins](https://discourse.nodered.org/t/node-red-doesnt-deploy-after-connecting-gpio-pins/46694)

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**Author:** [@raj2911](https://discourse.nodered.org/u/raj2911)\
**Replies:** 14\
**Last updated:** [6 June 2021 06:46 UTC](https://discourse.nodered.org/t/node-red-doesnt-deploy-after-connecting-gpio-pins/46694 "2021-06-06T06:46:02Z")

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I have been using an dht sensor in my flow and i cannot start node-red. I tried updating node-red and nodejs along with using different pi to check if there is any issues. Sometimes node-red flows get started but i can…

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## [MCP3008 Node not working](https://discourse.nodered.org/t/mcp3008-node-not-working/46712)

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**Author:** [@dmac101](https://discourse.nodered.org/u/dmac101)\
**Replies:** 6\
**Last updated:** [6 June 2021 06:35 UTC](https://discourse.nodered.org/t/mcp3008-node-not-working/46712 "2021-06-06T06:35:12Z")

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Hi All, I was hoping that someone out there in the community may be able to help out on this one. I have setup a basic flow to test the MCP3008 ADC. This consists of an inject node, MCP3008 node and debug node. The MCP …

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## [Help with Tuya-Local commands](https://discourse.nodered.org/t/help-with-tuya-local-commands/46762)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 0\
**Last updated:** [6 June 2021 05:29 UTC](https://discourse.nodered.org/t/help-with-tuya-local-commands/46762 "2021-06-06T05:29:04Z")

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Guys, Trying to parse some text to send out to the Tuya-Local nodes but keep getting errors One of the DPS keys (2) accepts the commands silence, booster, smart - but each time i try to send these to the tuya-local nod…

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## [MQTT problems. (nodes, messages and python)](https://discourse.nodered.org/t/mqtt-problems-nodes-messages-and-python/46715)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [6 June 2021 00:32 UTC](https://discourse.nodered.org/t/mqtt-problems-nodes-messages-and-python/46715 "2021-06-06T00:32:35Z")

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(How has to become this complicated?) I have a python script running and I added this line: client.publish("alarm\_clock/oops",text) I then have an MQTT IN node and set it so: \[{"id":"20f5e9bf.b0c9f6","type":"mqtt in"…

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## [Transparent group background template node](https://discourse.nodered.org/t/transparent-group-background-template-node/46755)

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**Author:** [@ghada](https://discourse.nodered.org/u/ghada)\
**Replies:** 0\
**Last updated:** [5 June 2021 22:18 UTC](https://discourse.nodered.org/t/transparent-group-background-template-node/46755 "2021-06-05T22:18:58Z")

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Hello!! I'm fairly new to Node-red. I have tried to follow many similar topics but I keep failing to acjieve the desired results. I have a background image and i need my md-cards to be transparent.

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## [Using global in a node (that's not a function node)](https://discourse.nodered.org/t/using-global-in-a-node-thats-not-a-function-node/46746)

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**Author:** [@wiiNinja](https://discourse.nodered.org/u/wiiNinja)\
**Replies:** 4\
**Last updated:** [5 June 2021 17:31 UTC](https://discourse.nodered.org/t/using-global-in-a-node-thats-not-a-function-node/46746 "2021-06-05T17:31:39Z")

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I have some globals declared in functionGlobalContext (example): functionGlobalContext: { led\_light: 'light.my\_led\_light' }, In a "function" node, I can do a global.get('led\_light'), and this works fine. I wanted to …

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## [MQTT Topic filter / wildcard switch](https://discourse.nodered.org/t/mqtt-topic-filter-wildcard-switch/46700)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 1\
**Last updated:** [5 June 2021 17:29 UTC](https://discourse.nodered.org/t/mqtt-topic-filter-wildcard-switch/46700 "2021-06-05T17:29:01Z")

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Hi all, just sharing this subflow I put together that allows you to switch based on a standard MQTT topic wildcards https://flows.nodered.org/flow/e38554543a8cdec6c44eacfc68a0c149 If follows on from this subject switch…

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## [Cannot create property '\_id' on string](https://discourse.nodered.org/t/cannot-create-property-id-on-string/46739)

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**Author:** [@ChrisTs99](https://discourse.nodered.org/u/ChrisTs99)\
**Replies:** 6\
**Last updated:** [5 June 2021 16:19 UTC](https://discourse.nodered.org/t/cannot-create-property-id-on-string/46739 "2021-06-05T16:19:22Z")

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Hello, I want to fill a database with random numbers using MongoDB. There are 3 nodes, 1 timestamp, 1 function where the random numbers are created and returned as a msg, 1 collection node of MongoDB. I have adjusted my…

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## [Switch node - wildcard option for routing](https://discourse.nodered.org/t/switch-node-wildcard-option-for-routing/46454)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 6\
**Last updated:** [5 June 2021 15:31 UTC](https://discourse.nodered.org/t/switch-node-wildcard-option-for-routing/46454 "2021-06-05T15:31:35Z")

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Hi all, following on from the thread Switch node - MQTT like wildcards for switching that was raised following some interesting points in this thread, it is proposed that it would be ultimately more beneficial to everyon…

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## [Specified time in Influx object](https://discourse.nodered.org/t/specified-time-in-influx-object/46703)

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**Author:** [@derko](https://discourse.nodered.org/u/derko)\
**Replies:** 7\
**Last updated:** [5 June 2021 14:39 UTC](https://discourse.nodered.org/t/specified-time-in-influx-object/46703 "2021-06-05T14:39:18Z")

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I'm receiving in HTTP IN a JSON containing, among other things, an id, some timestamps and some fields. I need to store the fields into an InfluxDB by tag id and by timestamp. So I create an JSON-object array. But I am…

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## [Hashing credentials for POST /auth/token](https://discourse.nodered.org/t/hashing-credentials-for-post-auth-token/46583)

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**Author:** [@browseitall](https://discourse.nodered.org/u/browseitall)\
**Replies:** 2\
**Last updated:** [5 June 2021 13:10 UTC](https://discourse.nodered.org/t/hashing-credentials-for-post-auth-token/46583 "2021-06-05T13:10:25Z")

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Not sure if this belongs into the Dashboard or General category, excuse me. My purposes require me to make a request to /flows (just reloading, so I'm not passing any node information); incidentally I'll need bearer tok…

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## [Mysql ER\_PARSE\_ERROR until flow is redeployed or restarted](https://discourse.nodered.org/t/mysql-er-parse-error-until-flow-is-redeployed-or-restarted/46631)

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**Author:** [@crabman](https://discourse.nodered.org/u/crabman)\
**Replies:** 18\
**Last updated:** [5 June 2021 13:00 UTC](https://discourse.nodered.org/t/mysql-er-parse-error-until-flow-is-redeployed-or-restarted/46631 "2021-06-05T13:00:55Z")

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var dataIn = msg.payload; var price = dataIn.bpi.USD.rate\_float; if (price != null){ flow.set('price',price); var dataForInsertQuery = \[\]; var ts = dataIn.time.updatedISO.slice(0, 19).replace('T', ' '); …

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## [Python libraries in Node Red Flows](https://discourse.nodered.org/t/python-libraries-in-node-red-flows/46707)

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**Author:** [@cjbussey](https://discourse.nodered.org/u/cjbussey)\
**Replies:** 4\
**Last updated:** [5 June 2021 12:24 UTC](https://discourse.nodered.org/t/python-libraries-in-node-red-flows/46707 "2021-06-05T12:24:49Z")

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Hi All, I have a rotary encoder where the knob is illuminated by an RGB LED, both the encoder and the LED are controlled by a microcontroller connected to a Raspberry PI over i2c. The libraries supporting the rotary en…

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## [Open Chromium from EXEC node](https://discourse.nodered.org/t/open-chromium-from-exec-node/46734)

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**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\
**Replies:** 0\
**Last updated:** [5 June 2021 12:07 UTC](https://discourse.nodered.org/t/open-chromium-from-exec-node/46734 "2021-06-05T12:07:44Z")

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Goodday, I know I can use the kiosk mode from startup, but I want to try it from the EXEC node in node red. I use this as the command: DISPLAY=:0 chromium-browser --kiosk --http://192.168.86.95:1880/worldmap --start-f…

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## [\[ANNOUNCE\] colour picker widget based on iro.js](https://discourse.nodered.org/t/announce-colour-picker-widget-based-on-iro-js/45393)

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**Author:** [@Christian-Me](https://discourse.nodered.org/u/Christian-Me)\
**Replies:** 2\
**Last updated:** [5 June 2021 10:25 UTC](https://discourse.nodered.org/t/announce-colour-picker-widget-based-on-iro-js/45393 "2021-06-05T10:25:24Z")

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node-red-contrib-ui-iro-color-picker Alternative color picker node utilizing the iro.js widget. The main credit goes to James for the iro.js widget. I was searching for a colour picker which is usable in different way…

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## [Grafana count entry](https://discourse.nodered.org/t/grafana-count-entry/46572)

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**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\
**Replies:** 7\
**Last updated:** [5 June 2021 09:58 UTC](https://discourse.nodered.org/t/grafana-count-entry/46572 "2021-06-05T09:58:43Z")

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Hello i have again a Grafana Problem imagine time | status | Name solved John NOK vera solved John NOK John solved John solved vera so i would like to count on my database how many time Jo…

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## [Using Grafana as Node-Red Dashboard?](https://discourse.nodered.org/t/using-grafana-as-node-red-dashboard/46673)

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**Author:** [@tve](https://discourse.nodered.org/u/tve)\
**Replies:** 1\
**Last updated:** [5 June 2021 08:02 UTC](https://discourse.nodered.org/t/using-grafana-as-node-red-dashboard/46673 "2021-06-05T08:02:45Z")

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For FlexDash I am exploring how to embed grafana in an iframe in FlexDash and started to wonder how it would be to use Grafana as the dashboard for Node-Red... Thoughts: Grafana now uses React, so modern stuff, but it …

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## [Bug report, old version so maybe fixed, RPi3B](https://discourse.nodered.org/t/bug-report-old-version-so-maybe-fixed-rpi3b/46671)

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**Author:** [@tyeth](https://discourse.nodered.org/u/tyeth)\
**Replies:** 1\
**Last updated:** [5 June 2021 07:46 UTC](https://discourse.nodered.org/t/bug-report-old-version-so-maybe-fixed-rpi3b/46671 "2021-06-05T07:46:58Z")

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Apologies, I was half tempted to stick this on github but not sure if it's easily recreated, nor if it's a problem with the contrib module, is that possible? Anyway here's my rambling version: Importing some flows I've …

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## [Change node suggestion](https://discourse.nodered.org/t/change-node-suggestion/46717)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [5 June 2021 07:04 UTC](https://discourse.nodered.org/t/change-node-suggestion/46717 "2021-06-05T07:04:08Z")

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An option to click on something like with the function node to make the edit area bigger.

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## ["Search" - I'm not getting something](https://discourse.nodered.org/t/search-im-not-getting-something/46678)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [4 June 2021 23:51 UTC](https://discourse.nodered.org/t/search-im-not-getting-something/46678 "2021-06-04T23:51:37Z")

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Hey folks. I am going through replacing a node with another one which is better suited. I search for it and the list of nodes is show. To keep things simple, I click on the top one, replace and repeat the search. Ok.…

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## [Debug buffer size](https://discourse.nodered.org/t/debug-buffer-size/46709)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 3\
**Last updated:** [4 June 2021 22:03 UTC](https://discourse.nodered.org/t/debug-buffer-size/46709 "2021-06-04T22:03:04Z")

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Hi, Are there a size limit for the debug buffer (amount of messages displayed in the debug)? If there is can it be adjusted? Thank you

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## [Value NaN on Node-red](https://discourse.nodered.org/t/value-nan-on-node-red/46665)

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**Author:** [@Alex95](https://discourse.nodered.org/u/Alex95)\
**Replies:** 1\
**Last updated:** [4 June 2021 21:16 UTC](https://discourse.nodered.org/t/value-nan-on-node-red/46665 "2021-06-04T21:16:22Z")

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Good evening to all. Before I tell you my problem I will tell you some details. Initially I have two Arduino which communicate with each other via LoRa due to the fact that I have connected them to two Dragino. So I have…

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## [Two instances of node red active](https://discourse.nodered.org/t/two-instances-of-node-red-active/46692)

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**Author:** [@CHLINDE](https://discourse.nodered.org/u/CHLINDE)\
**Replies:** 1\
**Last updated:** [4 June 2021 21:02 UTC](https://discourse.nodered.org/t/two-instances-of-node-red-active/46692 "2021-06-04T21:02:15Z")

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Hello! I got a raspberry pi for maintainance. To connect to the dashboard, I enter http://172.16.30.21: 1880 into firefox. Everything seems to be fine. But when I enter "http://172.16.30.21" without the port value, I r…

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## [Wifi not working when network cable is plugged in](https://discourse.nodered.org/t/wifi-not-working-when-network-cable-is-plugged-in/46660)

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**Author:** [@barry](https://discourse.nodered.org/u/barry)\
**Replies:** 8\
**Last updated:** [4 June 2021 20:31 UTC](https://discourse.nodered.org/t/wifi-not-working-when-network-cable-is-plugged-in/46660 "2021-06-04T20:31:42Z")

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Hi Guys I have a small network of click PLCs I'm monitoring inputs using Modbus My PLCc are addressed 192.168.11.--- The Server is addressed 192.168.63.1 I changed my Pie's Wan IP Address to 192.168.11.101 And I le…

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## [Unable to communicate with firestore](https://discourse.nodered.org/t/unable-to-communicate-with-firestore/46708)

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**Author:** [@alex1](https://discourse.nodered.org/u/alex1)\
**Replies:** 0\
**Last updated:** [4 June 2021 19:39 UTC](https://discourse.nodered.org/t/unable-to-communicate-with-firestore/46708 "2021-06-04T19:39:06Z")

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## [Merging 2 csv LEFT JOIN](https://discourse.nodered.org/t/merging-2-csv-left-join/46663)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 10\
**Last updated:** [4 June 2021 16:37 UTC](https://discourse.nodered.org/t/merging-2-csv-left-join/46663 "2021-06-04T16:37:33Z")

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Hello! I would like to merge two CSVs. With SQL, do this via a LEFT JOIN, is that also possible in node red?

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## [Signal when there is a change in status](https://discourse.nodered.org/t/signal-when-there-is-a-change-in-status/46705)

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**Author:** [@automati](https://discourse.nodered.org/u/automati)\
**Replies:** 1\
**Last updated:** [4 June 2021 14:45 UTC](https://discourse.nodered.org/t/signal-when-there-is-a-change-in-status/46705 "2021-06-04T14:45:22Z")

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Hello everybody I have a question: I have the following problem .. I have connected a Shelly to Nodered via MQTT, now I have the problem that I get the status from the Shelly about every 3 seconds ... Now I just want …

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## [Saving a single value to context](https://discourse.nodered.org/t/saving-a-single-value-to-context/46670)

<div class="topic-metadata">

**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 13\
**Last updated:** [4 June 2021 14:19 UTC](https://discourse.nodered.org/t/saving-a-single-value-to-context/46670 "2021-06-04T14:19:25Z")

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I'm saving a JSON object to file context similar to; { "192-168-1-10": \[ { "last\_on": 1622751269764 }, { "last\_off": 1622751272068 } \], "192-16-1-13": \[ { "last\_on": 162275177…

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## [How to use feezal](https://discourse.nodered.org/t/how-to-use-feezal/46688)

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**Author:** [@Suyens](https://discourse.nodered.org/u/Suyens)\
**Replies:** 1\
**Last updated:** [4 June 2021 12:07 UTC](https://discourse.nodered.org/t/how-to-use-feezal/46688 "2021-06-04T12:07:13Z")

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Hi, how to use feezal？

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## [Node red newby - change node - to string with payload parameter](https://discourse.nodered.org/t/node-red-newby-change-node-to-string-with-payload-parameter/46697)

<div class="topic-metadata">

**Author:** [@spitzlbergerj](https://discourse.nodered.org/u/spitzlbergerj)\
**Replies:** 1\
**Last updated:** [4 June 2021 09:48 UTC](https://discourse.nodered.org/t/node-red-newby-change-node-to-string-with-payload-parameter/46697 "2021-06-04T09:48:37Z")

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Hi, I am new to node red (Raspberry Pi, Node Red v1.3.5), have already read many docs. However, I can't find an answer to my current problem, which I'm sure is very trivial.. I want to query the status of a device (3d …

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