# Latest

**URL:** https://discourse.nodered.org/latest.md?page=946

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

**Page:** 947

---

## [Revert byte stuffing](https://discourse.nodered.org/t/revert-byte-stuffing/36487)

<div class="topic-metadata">

**Author:** [@Ralf711](https://discourse.nodered.org/u/Ralf711)\
**Replies:** 2\
**Last updated:** [25 November 2020 11:15 UTC](https://discourse.nodered.org/t/revert-byte-stuffing/36487 "2020-11-25T11:15:13Z")

</div>

Hello community, I am struggling with extracting and replacing specific bytes from a buffer. Sensor is sending out data in buffers with between 47 and 50 bytes, see examples. Buffer w/th 47 bytes: {"payload":\[126,0,3…

---

## [Uploading large Videos / Saving on Server](https://discourse.nodered.org/t/uploading-large-videos-saving-on-server/36498)

<div class="topic-metadata">

**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 1\
**Last updated:** [25 November 2020 06:11 UTC](https://discourse.nodered.org/t/uploading-large-videos-saving-on-server/36498 "2020-11-25T06:11:55Z")

</div>

I'm trying to allow large file uploads, mainly videos, to the node-red server, and save the files to a location on disk. I've tried Nicks example: https://flows.nodered.org/flow/c70d0b4c54b583cf30c7e989b74feb68 I tried…

---

## [Flow variables "set" and "get" in python3 node](https://discourse.nodered.org/t/flow-variables-set-and-get-in-python3-node/4082)

<div class="topic-metadata">

**Author:** [@Eyad](https://discourse.nodered.org/u/Eyad)\
**Replies:** 3\
**Last updated:** [18 October 2018 12:12 UTC](https://discourse.nodered.org/t/flow-variables-set-and-get-in-python3-node/4082 "2018-10-18T12:12:54Z")

</div>

Hi guys, I am trying to use the "context.get()" and "context.set()" in python3 function node and I am getting below error. global name 'context' is not defined. your kind help is much appreciated. Thanks.

---

## [Node Red Scheduler - how to make it repeat itself everyday?](https://discourse.nodered.org/t/node-red-scheduler-how-to-make-it-repeat-itself-everyday/36042)

<div class="topic-metadata">

**Author:** [@IOT\_Explorer](https://discourse.nodered.org/u/IOT_Explorer)\
**Replies:** 4\
**Last updated:** [25 November 2020 03:33 UTC](https://discourse.nodered.org/t/node-red-scheduler-how-to-make-it-repeat-itself-everyday/36042 "2020-11-25T03:33:16Z")

</div>

Hi Guys, I'm quote new to Node Red and i'm looking forward to using node red in my home automation project. I'm currently using this node ( https://flows.nodered.org/node/node-red-contrib-ui-time-scheduler) to set my s…

---

## [Image not displayed in node-red-contrib-ui-media](https://discourse.nodered.org/t/image-not-displayed-in-node-red-contrib-ui-media/32662)

<div class="topic-metadata">

**Author:** [@DrdP](https://discourse.nodered.org/u/DrdP)\
**Replies:** 11\
**Last updated:** [25 November 2020 01:24 UTC](https://discourse.nodered.org/t/image-not-displayed-in-node-red-contrib-ui-media/32662 "2020-11-25T01:24:15Z")

</div>

@gfcittolin Thank you for this node as it has really made something easy. I have tried to use it but the image is not displaying and I am not certain of what I have missed? Would I be able to use 1 ui-media node with so…

---

## [Exec Node to send command to windows machine](https://discourse.nodered.org/t/exec-node-to-send-command-to-windows-machine/36453)

<div class="topic-metadata">

**Author:** [@drumstick77](https://discourse.nodered.org/u/drumstick77)\
**Replies:** 1\
**Last updated:** [24 November 2020 23:54 UTC](https://discourse.nodered.org/t/exec-node-to-send-command-to-windows-machine/36453 "2020-11-24T23:54:58Z")

</div>

Hi all, just wondering if this is possible....scenario that I'm in is.... I've got node-red on linux installed on a VM. I would like to be able to send windows command to a windows laptop to remotely shutdown or sleep …

---

## [HTTP Endpoint Node no IP info about client/caller?](https://discourse.nodered.org/t/http-endpoint-node-no-ip-info-about-client-caller/36459)

<div class="topic-metadata">

**Author:** [@JSONata](https://discourse.nodered.org/u/JSONata)\
**Replies:** 4\
**Last updated:** [24 November 2020 23:44 UTC](https://discourse.nodered.org/t/http-endpoint-node-no-ip-info-about-client-caller/36459 "2020-11-24T23:44:03Z")

</div>

Hallo, I'm setting up a HTTP node and I'm wondering if there is really no info about the IP of the client? Nodes: \[{"id":"f7a89e10.8bd628","type":"http in","z":"b451655f.5db818","name":"","url":"/HTTPTest","method":"g…

---

## [Stored procedure with MSSQL-Plus node](https://discourse.nodered.org/t/stored-procedure-with-mssql-plus-node/36466)

<div class="topic-metadata">

**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 4\
**Last updated:** [24 November 2020 23:30 UTC](https://discourse.nodered.org/t/stored-procedure-with-mssql-plus-node/36466 "2020-11-24T23:30:13Z")

</div>

Hello. I have been successfully executing SQL queries via the MSSQL-Plus node for many months, and am now trying to execute a very simple stored procedure. I am getting the error(s) shown below and have attempted vario…

---

## [Contrib-s7 error when adding variables](https://discourse.nodered.org/t/contrib-s7-error-when-adding-variables/36480)

<div class="topic-metadata">

**Author:** [@ArttuJ](https://discourse.nodered.org/u/ArttuJ)\
**Replies:** 1\
**Last updated:** [24 November 2020 21:19 UTC](https://discourse.nodered.org/t/contrib-s7-error-when-adding-variables/36480 "2020-11-24T21:19:24Z")

</div>

Hello, Whenever I try to add any variables to my S7 node, I get this error: error \[0x8104\] 0x8104 My PLC is an S7-1200 1214C DC/DC/RLY The node will read "Online" without any variables and no errors are posted in …

---

## [Set the SHAPE of a Dashboard BUTTON?](https://discourse.nodered.org/t/set-the-shape-of-a-dashboard-button/36457)

<div class="topic-metadata">

**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 8\
**Last updated:** [24 November 2020 20:01 UTC](https://discourse.nodered.org/t/set-the-shape-of-a-dashboard-button/36457 "2020-11-24T20:01:31Z")

</div>

Is it possible at all to control the roundness of the corners on the Dashboard "Button"? Or, do you have to use something else to deploy a rounded edge button? or to make a circle push button out of a 1x1 size? Kind R…

---

## [Having trouble Hello Worlding with google-iot-core node](https://discourse.nodered.org/t/having-trouble-hello-worlding-with-google-iot-core-node/36485)

<div class="topic-metadata">

**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 0\
**Last updated:** [24 November 2020 19:59 UTC](https://discourse.nodered.org/t/having-trouble-hello-worlding-with-google-iot-core-node/36485 "2020-11-24T19:59:52Z")

</div>

I am currently testing the node-red-contrib-google-iot-core. And i managed to successfully connect both in/out nodes. I added a simple inject node (Hello World) to the out node. In google cloud dashboard i successfully…

---

## [Saving flow.variables from a Subflow?](https://discourse.nodered.org/t/saving-flow-variables-from-a-subflow/36473)

<div class="topic-metadata">

**Author:** [@Curious](https://discourse.nodered.org/u/Curious)\
**Replies:** 5\
**Last updated:** [24 November 2020 19:29 UTC](https://discourse.nodered.org/t/saving-flow-variables-from-a-subflow/36473 "2020-11-24T19:29:51Z")

</div>

I am using Node0Red V1.04. I am able to save global variables from a subflow but saving flow variables does not seem to work. Is setting / saving flow variables supported from a sub flow?

---

## [Hubitat nodes crashing Node-RED](https://discourse.nodered.org/t/hubitat-nodes-crashing-node-red/36440)

<div class="topic-metadata">

**Author:** [@bkdfkup](https://discourse.nodered.org/u/bkdfkup)\
**Replies:** 6\
**Last updated:** [24 November 2020 17:51 UTC](https://discourse.nodered.org/t/hubitat-nodes-crashing-node-red/36440 "2020-11-24T17:51:56Z")

</div>

Hi all! I am hitting an issue with (some) node-red-contrib-hubitat nodes crashing node-RED, requiring a --safe restart and disabling flows until i can get it to stay working. The following error appears in an SSH termin…

---

## [Serial port split node](https://discourse.nodered.org/t/serial-port-split-node/36449)

<div class="topic-metadata">

**Author:** [@diaz\_1988](https://discourse.nodered.org/u/diaz_1988)\
**Replies:** 1\
**Last updated:** [24 November 2020 17:09 UTC](https://discourse.nodered.org/t/serial-port-split-node/36449 "2020-11-24T17:09:44Z")

</div>

Hey to all can someone suggest how to split this string ouput? It comes from a serial port node

---

## [Working with object name variables](https://discourse.nodered.org/t/working-with-object-name-variables/36464)

<div class="topic-metadata">

**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 4\
**Last updated:** [24 November 2020 16:48 UTC](https://discourse.nodered.org/t/working-with-object-name-variables/36464 "2020-11-24T16:48:59Z")

</div>

I have a pop up whereby I can choose one of many Sonoff (MQTT Tasmota) switches and via notification see that switches operating info such as RSSI, network, gui\_name, hw\_name, etc... So if I choose "1" in my pop up, the…

---

## [Is there a right way to update NR from a flow?](https://discourse.nodered.org/t/is-there-a-right-way-to-update-nr-from-a-flow/36307)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 11\
**Last updated:** [24 November 2020 16:40 UTC](https://discourse.nodered.org/t/is-there-a-right-way-to-update-nr-from-a-flow/36307 "2020-11-24T16:40:54Z")

</div>

Is there a right way to update NR from a flow? Calling the official Pi script as a use case? From an exec node? Stop and restart of NR would be required of course. Expect the exec node to queue the task... so the act…

---

## [Tuyapi (node-red-contrib-tuya-smart-device) - how to GET a value](https://discourse.nodered.org/t/tuyapi-node-red-contrib-tuya-smart-device-how-to-get-a-value/36185)

<div class="topic-metadata">

**Author:** [@Domeus](https://discourse.nodered.org/u/Domeus)\
**Replies:** 5\
**Last updated:** [24 November 2020 15:15 UTC](https://discourse.nodered.org/t/tuyapi-node-red-contrib-tuya-smart-device-how-to-get-a-value/36185 "2020-11-24T15:15:43Z")

</div>

Hello. I use node-red and tuyapi to control my floor heater sensors. I use the node "tuya smart device". Set orders work perfect like this one to set a new temperatur (it is json): { "dps": 2, "set": {{payload}} } …

---

## [Multiply two variables](https://discourse.nodered.org/t/multiply-two-variables/35380)

<div class="topic-metadata">

**Author:** [@usmanEmder](https://discourse.nodered.org/u/usmanEmder)\
**Replies:** 11\
**Last updated:** [24 November 2020 14:30 UTC](https://discourse.nodered.org/t/multiply-two-variables/35380 "2020-11-24T14:30:21Z")

</div>

I have two random payloads, First, I assign the variables with "change note" then want to multiply them but I am getting NaN in debug.

---

## [Unit Test with Code Coverage](https://discourse.nodered.org/t/unit-test-with-code-coverage/36451)

<div class="topic-metadata">

**Author:** [@emanuel](https://discourse.nodered.org/u/emanuel)\
**Replies:** 1\
**Last updated:** [24 November 2020 14:28 UTC](https://discourse.nodered.org/t/unit-test-with-code-coverage/36451 "2020-11-24T14:28:37Z")

</div>

I have managed to install mocha and made some unit tests. I want to check the coverage when running my tests. Is it possible to do with nyc (istanbul) for example I have tried but only get 0% coverage all the time.

---

## [Modbus USB PORTNOTOPENERROR](https://discourse.nodered.org/t/modbus-usb-portnotopenerror/36324)

<div class="topic-metadata">

**Author:** [@bert2713d](https://discourse.nodered.org/u/bert2713d)\
**Replies:** 1\
**Last updated:** [24 November 2020 14:25 UTC](https://discourse.nodered.org/t/modbus-usb-portnotopenerror/36324 "2020-11-24T14:25:45Z")

</div>

dear All I using node-red to convert a Modbus signal to MQTT . It was working fine. However I have install on my raspberry Pi4 a SSH and VNC connection in order to have a distance access. I do not know if it is linking…

---

## [Using the functionGlobalContext](https://discourse.nodered.org/t/using-the-functionglobalcontext/36445)

<div class="topic-metadata">

**Author:** [@heei](https://discourse.nodered.org/u/heei)\
**Replies:** 2\
**Last updated:** [24 November 2020 13:25 UTC](https://discourse.nodered.org/t/using-the-functionglobalcontext/36445 "2020-11-24T13:25:08Z")

</div>

Hi, This is my first post, so please let me know if I'm doing something wrong. I am using node-red v1.0.6 on a Raspberry Pi 4 B. I am currently using a custom node module in my function nodes, imported by using the fu…

---

## [Problem with MongoDB-aggregate function](https://discourse.nodered.org/t/problem-with-mongodb-aggregate-function/35601)

<div class="topic-metadata">

**Author:** [@jonlega06](https://discourse.nodered.org/u/jonlega06)\
**Replies:** 8\
**Last updated:** [11 November 2020 10:34 UTC](https://discourse.nodered.org/t/problem-with-mongodb-aggregate-function/35601 "2020-11-11T10:34:15Z")

</div>

Hi all, I'm trying to get some data from MongoDB database using the function 'aggregate'. But when I insert the pipeline array in the payload, as it sais in the mongodb node information page that I have used \[node-red-n…

---

## [Shutters with Shelly 2.5 opened/closed dectection via powerdrae](https://discourse.nodered.org/t/shutters-with-shelly-2-5-opened-closed-dectection-via-powerdrae/36388)

<div class="topic-metadata">

**Author:** [@AnScherf](https://discourse.nodered.org/u/AnScherf)\
**Replies:** 3\
**Last updated:** [24 November 2020 11:10 UTC](https://discourse.nodered.org/t/shutters-with-shelly-2-5-opened-closed-dectection-via-powerdrae/36388 "2020-11-24T11:10:55Z")

</div>

Hello, I'm running nodered on home assistant. My shutters are controlled by shelly 2.5 devices. With the node-red-contrib-shelly most of all is working fine. I've got a switch, which is not connected to the Shelly Devic…

---

## [Queue is reversing my payload order](https://discourse.nodered.org/t/queue-is-reversing-my-payload-order/36431)

<div class="topic-metadata">

**Author:** [@krisluks](https://discourse.nodered.org/u/krisluks)\
**Replies:** 2\
**Last updated:** [24 November 2020 10:33 UTC](https://discourse.nodered.org/t/queue-is-reversing-my-payload-order/36431 "2020-11-24T10:33:35Z")

</div>

Hi everyone, I'm having an issue using a SimpleQueue where the messages instead of being FIFO are coming out FILO, am I doing anything wrong here? Flow Template Function node Outcome in text Flow export: \[…

---

## [Feature Request Auto-Commit](https://discourse.nodered.org/t/feature-request-auto-commit/36411)

<div class="topic-metadata">

**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 2\
**Last updated:** [24 November 2020 10:17 UTC](https://discourse.nodered.org/t/feature-request-auto-commit/36411 "2020-11-24T10:17:33Z")

</div>

I like the newly introduced auto-commit feature since version 1.2. Really cool! Thank you very much. It would be even more nice, if I there would be an option, that asks me on every deploy what I have changed and use th…

---

## [Chart showing weird graphs](https://discourse.nodered.org/t/chart-showing-weird-graphs/36434)

<div class="topic-metadata">

**Author:** [@Statler](https://discourse.nodered.org/u/Statler)\
**Replies:** 5\
**Last updated:** [24 November 2020 09:36 UTC](https://discourse.nodered.org/t/chart-showing-weird-graphs/36434 "2020-11-24T09:36:55Z")

</div>

\[{"id":"88cf6203.a189f","type":"ui\_chart","z":"48d2a1b1.9516a","name":"","group":"6ff1bfe2.8add3","order":13,"width":18,"height":7,"label":"","chartType":"line","legend":"false","xformat":"HH:mm","interpolate":"bezier","…

---

## [Connecting Node-RED to an Omron PLC](https://discourse.nodered.org/t/connecting-node-red-to-an-omron-plc/911)

<div class="topic-metadata">

**Author:** [@Dhiaa](https://discourse.nodered.org/u/Dhiaa)\
**Replies:** 20\
**Last updated:** [24 November 2020 08:39 UTC](https://discourse.nodered.org/t/connecting-node-red-to-an-omron-plc/911 "2020-11-24T08:39:13Z")

</div>

Hi, I am new to learn Node-RED and its features. I want to connect an Omron PLC to it to make some tests. Could you guys tell me what node to use? The communication should be established throught an Ethernet/IP port. T…

---

## [Buffer Parser to JSON to PUSH & REST API](https://discourse.nodered.org/t/buffer-parser-to-json-to-push-rest-api/35940)

<div class="topic-metadata">

**Author:** [@maa1](https://discourse.nodered.org/u/maa1)\
**Replies:** 6\
**Last updated:** [24 November 2020 08:18 UTC](https://discourse.nodered.org/t/buffer-parser-to-json-to-push-rest-api/35940 "2020-11-24T08:18:23Z")

</div>

Hi, I want to know: How I can convert the output of Buffer Parser into JSON? How to send the JSON data over PUSH API and REST API. Please help.

---

## [Ui\_toast - feature request - third button](https://discourse.nodered.org/t/ui-toast-feature-request-third-button/36439)

<div class="topic-metadata">

**Author:** [@Betschler](https://discourse.nodered.org/u/Betschler)\
**Replies:** 0\
**Last updated:** [24 November 2020 08:06 UTC](https://discourse.nodered.org/t/ui-toast-feature-request-third-button/36439 "2020-11-24T08:06:26Z")

</div>

Hi, is it possible to add the option for a third button? We currently have the issue that we want to control a machine. If an error occurs, the options should "continue", "stop" and "recheck". We tried to use templates…

---

## [\[Announce\] node-red-contrib-pico2wave](https://discourse.nodered.org/t/announce-node-red-contrib-pico2wave/36438)

<div class="topic-metadata">

**Author:** [@JGKK](https://discourse.nodered.org/u/JGKK)\
**Replies:** 0\
**Last updated:** [24 November 2020 08:01 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-pico2wave/36438 "2020-11-24T08:01:28Z")

</div>

Hello, I just published node-red-contrib-pico2wave to npm and the flows library: This node is a simple interface for the Svox pico text to speech tool that allows you to generate spoken audio from a string in En…

[Previous page](https://discourse.nodered.org/latest.md?page=945)

[Next page](https://discourse.nodered.org/latest.md?page=947)