# Share Your Projects

**URL:** https://discourse.nodered.org/c/share-your-projects/6.md?no_subcategories=false&page=17

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

**Page:** 18

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## [A re-imagining of the delay node (subflow)](https://discourse.nodered.org/t/a-re-imagining-of-the-delay-node-subflow/55054)

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**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 4\
**Last updated:** [11 December 2021 20:27 UTC](https://discourse.nodered.org/t/a-re-imagining-of-the-delay-node-subflow/55054 "2021-12-11T20:27:19Z")

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I recently tried using the delay node to rate-limit messages to 1 per day. I had expected the first message to pass immediately, but quickly learned that it holds onto messages that pass until a static interval is reach…

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## [4 lane traffic light control with raspberry Pi and Node red](https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852)

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**Author:** [@hasan\_s\_m](https://discourse.nodered.org/u/hasan_s_m)\
**Replies:** 1\
**Last updated:** [8 December 2021 20:33 UTC](https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852 "2021-12-08T20:33:05Z")

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flows.json (72.8 KB)

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## [A handy way for testing different ways of doing something in your flows](https://discourse.nodered.org/t/a-handy-way-for-testing-different-ways-of-doing-something-in-your-flows/54724)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 12\
**Last updated:** [7 December 2021 22:14 UTC](https://discourse.nodered.org/t/a-handy-way-for-testing-different-ways-of-doing-something-in-your-flows/54724 "2021-12-07T22:14:49Z")

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If you are only clawing your way through node-red and are open to trying different ways to get something done, this maybe handy for you. Here you can see how I have one incoming message and you are not sure which cod…

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## [Full web OEE system with plc communication](https://discourse.nodered.org/t/full-web-oee-system-with-plc-communication/54799)

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**Author:** [@vitormnm](https://discourse.nodered.org/u/vitormnm)\
**Replies:** 0\
**Last updated:** [6 December 2021 23:04 UTC](https://discourse.nodered.org/t/full-web-oee-system-with-plc-communication/54799 "2021-12-06T23:04:49Z")

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I just made a system made with a web interface using the standard nodes http(not red-dashboard), I used the mysql nodes and the communication node with plc(AB micrologix 1400). The performance looks good to me, I'm usin…

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## [My video about the use of a 4-way zigbee switch, a zigbee2mqtt gateway, Node Red and a hybrid inverter](https://discourse.nodered.org/t/my-video-about-the-use-of-a-4-way-zigbee-switch-a-zigbee2mqtt-gateway-node-red-and-a-hybrid-inverter/54788)

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**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\
**Replies:** 5\
**Last updated:** [6 December 2021 21:51 UTC](https://discourse.nodered.org/t/my-video-about-the-use-of-a-4-way-zigbee-switch-a-zigbee2mqtt-gateway-node-red-and-a-hybrid-inverter/54788 "2021-12-06T21:51:06Z")

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I wanted to share a demo about the use of a 4-way zigbee switch, a zigbee2mqtt gateway, Node Red and a hybrid inverter. A telling example of what can be done with NR without any real programming knowledge. The wish of …

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## [Show and Tell - Node-RED playing Snake, and more!](https://discourse.nodered.org/t/show-and-tell-node-red-playing-snake-and-more/53653)

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**Author:** [@mdkrieg](https://discourse.nodered.org/u/mdkrieg)\
**Replies:** 6\
**Last updated:** [30 November 2021 23:26 UTC](https://discourse.nodered.org/t/show-and-tell-node-red-playing-snake-and-more/53653 "2021-11-30T23:26:42Z")

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Hello everyone, I have three projects to share today, but the common thread in these projects is that these are all "no backend" applications. Meaning, everything is served with flat files and the flow is interpreted in…

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## [Helping with subflows and context access examples](https://discourse.nodered.org/t/helping-with-subflows-and-context-access-examples/54534)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [30 November 2021 21:17 UTC](https://discourse.nodered.org/t/helping-with-subflows-and-context-access-examples/54534 "2021-11-30T21:17:27Z")

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To put it out there here is a flow with 2 examples of subflow and accessing context. The first is accessing context from within the subflow. The second accesses context from the parent flow. This example READS context…

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## [Public gallery with projects](https://discourse.nodered.org/t/public-gallery-with-projects/54253)

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**Author:** [@LucianPopescu](https://discourse.nodered.org/u/LucianPopescu)\
**Replies:** 5\
**Last updated:** [26 November 2021 07:48 UTC](https://discourse.nodered.org/t/public-gallery-with-projects/54253 "2021-11-26T07:48:31Z")

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Greetings Node-Red community, Is there any galley where the projects can be saved, shared and re-use? At this moment transferring projects from one device to another is not very user-friendly, and it would be nice to …

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## [TTS with Denon Receiver](https://discourse.nodered.org/t/tts-with-denon-receiver/54174)

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**Author:** [@donniev](https://discourse.nodered.org/u/donniev)\
**Replies:** 0\
**Last updated:** [23 November 2021 18:49 UTC](https://discourse.nodered.org/t/tts-with-denon-receiver/54174 "2021-11-23T18:49:20Z")

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I struggled getting TTS to work with my Denon receiver and I thought I would post a few tips here in hopes of saving others a bit of time; Play\_media loads a resource and plays it BUT ALSO adds it to the queue (playli…

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## [Programming in a nutshell](https://discourse.nodered.org/t/programming-in-a-nutshell/53873)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 2\
**Last updated:** [17 November 2021 14:44 UTC](https://discourse.nodered.org/t/programming-in-a-nutshell/53873 "2021-11-17T14:44:43Z")

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Not really a project, but since I share quite a bit of the material I use with my IoT students here - I thought this might be a suitable place to share it with you. I created this short presentation to explain the basic…

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## [Ham Radio - Icom PCR1000 FrontEnd](https://discourse.nodered.org/t/ham-radio-icom-pcr1000-frontend/52466)

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**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 61\
**Last updated:** [12 November 2021 13:55 UTC](https://discourse.nodered.org/t/ham-radio-icom-pcr1000-frontend/52466 "2021-11-12T13:55:46Z")

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Hi All, Here is a small front end I have started for the Icom PCR1000 .... Far from perfect, still needs de-cluttering, still needs bandscope to be done, but a fun little project so far... Runs purely on Node Red with…

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## [Simple control of Alexa enabled devices](https://discourse.nodered.org/t/simple-control-of-alexa-enabled-devices/53039)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 6\
**Last updated:** [10 November 2021 09:05 UTC](https://discourse.nodered.org/t/simple-control-of-alexa-enabled-devices/53039 "2021-11-10T09:05:48Z")

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https://simplesi.net/control-any-alexa-device-using-node-red/ I've had this idea for a while and I've finally implemented it :smiley: The basic idea is that you use text to speech and place a speaker (or headphone ea…

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## [A way to export the functions of your Node Red Flows to a .js file](https://discourse.nodered.org/t/a-way-to-export-the-functions-of-your-node-red-flows-to-a-js-file/53328)

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**Author:** [@lstebe](https://discourse.nodered.org/u/lstebe)\
**Replies:** 4\
**Last updated:** [8 November 2021 16:20 UTC](https://discourse.nodered.org/t/a-way-to-export-the-functions-of-your-node-red-flows-to-a-js-file/53328 "2021-11-08T16:20:09Z")

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Hello Folks, I am working on a bigger academic project atm and was looking for a way to export the code in my function Nodes to a .js file. Main Reasons: Easier Versioning external editing in e.g. VSC I am using bas…

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## [Worldmap - Working with Markers example](https://discourse.nodered.org/t/worldmap-working-with-markers-example/43576)

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**Author:** [@meeki007](https://discourse.nodered.org/u/meeki007)\
**Replies:** 3\
**Last updated:** [3 April 2021 16:36 UTC](https://discourse.nodered.org/t/worldmap-working-with-markers-example/43576 "2021-04-03T16:36:12Z")

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What this example provides: Save markers you create on the map between deployments, restarts, page refreshes. Warns user if marker name is already used and does not overwrite marker. Outlines step by step how to add a …

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## [Message debug function node](https://discourse.nodered.org/t/message-debug-function-node/53261)

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**Author:** [@ozpos](https://discourse.nodered.org/u/ozpos)\
**Replies:** 6\
**Last updated:** [6 November 2021 09:36 UTC](https://discourse.nodered.org/t/message-debug-function-node/53261 "2021-11-06T09:36:13Z")

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Hi All, I got into a spot of bother with message timing and fatal lock up so I created this function node to pause, skip, play next, play last, dump and run any message with a topic. Messages are saved to context varia…

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## [Node-red-node-sqlite npm install node-gyp problem](https://discourse.nodered.org/t/node-red-node-sqlite-npm-install-node-gyp-problem/52716)

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**Author:** [@Josari](https://discourse.nodered.org/u/Josari)\
**Replies:** 17\
**Last updated:** [5 November 2021 17:03 UTC](https://discourse.nodered.org/t/node-red-node-sqlite-npm-install-node-gyp-problem/52716 "2021-11-05T17:03:22Z")

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Hi all, I am currently working with node-red on a raspberry pi 3B+. The problem begins when I try to install node-red-node-sqlite node. This happens when I try to install the nodes from node-red pallete or when I execut…

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## [Neopixel Matrix Test with Obniz Boards](https://discourse.nodered.org/t/neopixel-matrix-test-with-obniz-boards/52737)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 0\
**Last updated:** [26 October 2021 06:59 UTC](https://discourse.nodered.org/t/neopixel-matrix-test-with-obniz-boards/52737 "2021-10-26T06:59:25Z")

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Nothing special today, just a set of flows to control an obniz board with an attached Neopixel 16x16 RGB matrix - although they may easily be adapted to other geometries of chained WS2812 RGB LEDs (but only up to a lengt…

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## [Build a Node-Red Framework](https://discourse.nodered.org/t/build-a-node-red-framework/52726)

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**Author:** [@Colin\_Rebello](https://discourse.nodered.org/u/Colin_Rebello)\
**Replies:** 0\
**Last updated:** [25 October 2021 18:16 UTC](https://discourse.nodered.org/t/build-a-node-red-framework/52726 "2021-10-25T18:16:08Z")

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This article along with an accompanying app describes and implements a framework to capture and process IOT or Lab Data data in a more complete way ..ie an end to end solution with a Simulator side and a PC side talking…

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## [Web Server Examples](https://discourse.nodered.org/t/web-server-examples/51768)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 1\
**Last updated:** [25 October 2021 15:57 UTC](https://discourse.nodered.org/t/web-server-examples/51768 "2021-10-25T15:57:39Z")

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I'm currently preparing a set of Node-RED flows and use cases for my students in order to motivate and encourage them to invent and build web sites and REST services without having to know, learn and program much. As pa…

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## [Authentication and Authorization Examples for Node-RED](https://discourse.nodered.org/t/authentication-and-authorization-examples-for-node-red/51750)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 3\
**Last updated:** [25 October 2021 15:46 UTC](https://discourse.nodered.org/t/authentication-and-authorization-examples-for-node-red/51750 "2021-10-25T15:46:37Z")

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I'm currently preparing a set of Node-RED flows and use cases for my students in order to motivate and encourage them to invent and build web sites and REST services without having to know, learn and program much. Often…

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## [I made a setup to control GPT-3, the most powerful AI in the world using Node Red](https://discourse.nodered.org/t/i-made-a-setup-to-control-gpt-3-the-most-powerful-ai-in-the-world-using-node-red/52557)

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**Author:** [@mistywind](https://discourse.nodered.org/u/mistywind)\
**Replies:** 0\
**Last updated:** [22 October 2021 08:50 UTC](https://discourse.nodered.org/t/i-made-a-setup-to-control-gpt-3-the-most-powerful-ai-in-the-world-using-node-red/52557 "2021-10-22T08:50:40Z")

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I had received access to GPT-3 API earlier and had played with in the openai playground. However, I found that the API is kind of unusable for the layman. It requires coding skills and a schoolboy or a shopkeeper cannot …

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## [Contact Form and User Feedback Examples](https://discourse.nodered.org/t/contact-form-and-user-feedback-examples/52469)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 0\
**Last updated:** [20 October 2021 14:30 UTC](https://discourse.nodered.org/t/contact-form-and-user-feedback-examples/52469 "2021-10-20T14:30:25Z")

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I'm currently preparing a set of Node-RED flows and use cases for my students in order to motivate and encourage them to invent and build web sites and REST services without having to know, learn and program much. As pa…

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## [CBUS IoT Project](https://discourse.nodered.org/t/cbus-iot-project/52368)

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**Author:** [@Westwood85](https://discourse.nodered.org/u/Westwood85)\
**Replies:** 0\
**Last updated:** [18 October 2021 13:49 UTC](https://discourse.nodered.org/t/cbus-iot-project/52368 "2021-10-18T13:49:23Z")

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Hello everyone. I have been working on an IoT project for a while as a hobby, and i would like to share it with you. It is complately free, and you can try it out as you wish. Any feedback would be much appriciated! I…

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## [MQTT for problems that occur when singletones share the same object](https://discourse.nodered.org/t/mqtt-for-problems-that-occur-when-singletones-share-the-same-object/52354)

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**Author:** [@JaeHyunKim](https://discourse.nodered.org/u/JaeHyunKim)\
**Replies:** 4\
**Last updated:** [18 October 2021 10:02 UTC](https://discourse.nodered.org/t/mqtt-for-problems-that-occur-when-singletones-share-the-same-object/52354 "2021-10-18T10:02:34Z")

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Hello. I want to create a dynamically linked MQTT object. I found 'node-red-contrib-mqtt-dynamictopic' as a similar node. However, I ask because it is not like the function I want to make because only the Topic can be…

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## [Having fun with license plate recognitions](https://discourse.nodered.org/t/having-fun-with-license-plate-recognitions/51893)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 8\
**Last updated:** [8 October 2021 20:27 UTC](https://discourse.nodered.org/t/having-fun-with-license-plate-recognitions/51893 "2021-10-08T20:27:44Z")

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Hi folks, Some community members are currently very busy to help us building our own video surveillance system. Their enthousiasm has triggered me to demonstrate how license plate recognition can easily be integrated i…

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## [Printer Ink Fill level with SNMP](https://discourse.nodered.org/t/printer-ink-fill-level-with-snmp/51889)

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**Author:** [@Urs-Eppenberger](https://discourse.nodered.org/u/Urs-Eppenberger)\
**Replies:** 8\
**Last updated:** [6 October 2021 18:07 UTC](https://discourse.nodered.org/t/printer-ink-fill-level-with-snmp/51889 "2021-10-06T18:07:58Z")

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In March I posted about my search to monitor the ink fill levels of my new printer. https://discourse.nodered.org/t/read-ink-fill-level-from-epson-printer/43048 Having a dashboard with the absolute ink levels is nice. …

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## [Express Server with embedded Node-RED Instance](https://discourse.nodered.org/t/express-server-with-embedded-node-red-instance/51752)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 1\
**Last updated:** [2 October 2021 03:48 UTC](https://discourse.nodered.org/t/express-server-with-embedded-node-red-instance/51752 "2021-10-02T03:48:27Z")

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I'm currently preparing a set of Node-RED flows and use cases for my students in order to motivate and encourage them to invent and build web sites and REST services without having to know, learn and program much. As an…

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## [NodeRed IoT Deployment with Synpse](https://discourse.nodered.org/t/nodered-iot-deployment-with-synpse/51346)

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**Author:** [@M.J](https://discourse.nodered.org/u/M.J)\
**Replies:** 0\
**Last updated:** [21 September 2021 14:22 UTC](https://discourse.nodered.org/t/nodered-iot-deployment-with-synpse/51346 "2021-09-21T14:22:26Z")

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Howdy folks, Might sound a bit of an advertisement, so if this is not the right place - let me know :slight\_smile: We are very big NodeRed fans. We use it everywhere. We are a couple of contractors doing freelance. An…

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## [Hubitat to Node-Red Hue, Saturation, and Level combination](https://discourse.nodered.org/t/hubitat-to-node-red-hue-saturation-and-level-combination/51312)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 0\
**Last updated:** [20 September 2021 23:43 UTC](https://discourse.nodered.org/t/hubitat-to-node-red-hue-saturation-and-level-combination/51312 "2021-09-20T23:43:27Z")

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Not a full project, but in case someone looks here instead of the Hubitat forum, I wanted to share a flow. I had discussed a challenge with separating input from Hubitat into Node-Red. The situation is that when a colo…

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## [Scratch 3 and NodeRED working together](https://discourse.nodered.org/t/scratch-3-and-nodered-working-together/8473)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 33\
**Last updated:** [16 September 2021 07:54 UTC](https://discourse.nodered.org/t/scratch-3-and-nodered-working-together/8473 "2021-09-16T07:54:30Z")

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Scratch 3 translate requests re-directed to NodeRED HTTP nodes using a chrome extension Then parsed by Blockly node and result of eval returned back to Scratch Brings power of javascript to Scratch :slight\_smile: …

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