# Share Your Projects

**URL:** https://discourse.nodered.org/c/share-your-projects/6.md?no_subcategories=false&page=22

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**Page:** 23

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## [So, Have A PCF8574, And Want To Use It Via Node Red?](https://discourse.nodered.org/t/so-have-a-pcf8574-and-want-to-use-it-via-node-red/30853)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [29 July 2020 05:47 UTC](https://discourse.nodered.org/t/so-have-a-pcf8574-and-want-to-use-it-via-node-red/30853 "2020-07-29T05:47:15Z")

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So, have a PCF8574 breakout board and want to use it via NR? Have I got a deal, \[cough\], a flow for you! I could not seem to find an easy, straight forward way to use an PCF8574 based GPIO expansion breakout board in…

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## ["Have a MPL115A2 Sensor? And..."](https://discourse.nodered.org/t/have-a-mpl115a2-sensor-and/30809)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [28 July 2020 02:37 UTC](https://discourse.nodered.org/t/have-a-mpl115a2-sensor-and/30809 "2020-07-28T02:37:56Z")

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Well, every single node module I found for node.js or NR that supports the MPL115A2 sensor chip, is either very old and broken over time, fails to compile, and/or seems to refuse to load into npm, etc. Moreover, the MPL…

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## [Node Red Security: Auditing login successes and failures](https://discourse.nodered.org/t/node-red-security-auditing-login-successes-and-failures/30371)

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**Author:** [@murraybrandon](https://discourse.nodered.org/u/murraybrandon)\
**Replies:** 3\
**Last updated:** [20 July 2020 23:34 UTC](https://discourse.nodered.org/t/node-red-security-auditing-login-successes-and-failures/30371 "2020-07-20T23:34:47Z")

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(Raspbian Node Red) If you plan to have Node Red running for a long time, you really should keep an eye on who is using it. One handy thing you can do is tail the system logs to see when someone logs in or fails to log…

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## [Controlling model train](https://discourse.nodered.org/t/controlling-model-train/30276)

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**Author:** [@Jacad](https://discourse.nodered.org/u/Jacad)\
**Replies:** 4\
**Last updated:** [18 July 2020 20:43 UTC](https://discourse.nodered.org/t/controlling-model-train/30276 "2020-07-18T20:43:24Z")

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Node-Red, Raspberry Pi 4 and 0, Esp32, MQTT. In the last months, a lot of spare time, I build my 40 year old model train set and tried to control it with Node-Red. First step: Manually controlling with the Dashboard. …

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## [\[Flow\] Corona country comparison with Hubei (China)](https://discourse.nodered.org/t/flow-corona-country-comparison-with-hubei-china/23237)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 91\
**Last updated:** [9 June 2020 14:00 UTC](https://discourse.nodered.org/t/flow-corona-country-comparison-with-hubei-china/23237 "2020-06-09T14:00:44Z")

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Comparison Charts (new section!!) I will regularly post new country comparison charts as comment to this forum topic. Here below the list of charts I have posted so far. Italy (lock down date=2020-03-05) generated a…

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## [Send audio from android to Node Red / Tasker tutorial for voice2json](https://discourse.nodered.org/t/send-audio-from-android-to-node-red-tasker-tutorial-for-voice2json/29959)

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**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 0\
**Last updated:** [12 July 2020 19:23 UTC](https://discourse.nodered.org/t/send-audio-from-android-to-node-red-tasker-tutorial-for-voice2json/29959 "2020-07-12T19:23:54Z")

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How to record your voice and send it to Node Red on Android mobile phones Introduction: This description is basically a step by step tutorial. It’s made to get a stream / buffer of your recorded audio sample to Node Re…

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## [Monitoring the status of a mini-tower of Raspberry Pi(es)](https://discourse.nodered.org/t/monitoring-the-status-of-a-mini-tower-of-raspberry-pi-es/29428)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 3\
**Last updated:** [11 July 2020 08:14 UTC](https://discourse.nodered.org/t/monitoring-the-status-of-a-mini-tower-of-raspberry-pi-es/29428 "2020-07-11T08:14:53Z")

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I've just built a mini-tower for some of my old RPi-3s and 2s and thought I would try out SVG to overlay some LEDs (as circles) on top of a photo to show LED status, and some text to indicate the CPU temperature and IP a…

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## [Power Forecasts and Data-Tuning for Solar Installations (Node-Red / solcast-API / InfluxDB / Grafana)](https://discourse.nodered.org/t/power-forecasts-and-data-tuning-for-solar-installations-node-red-solcast-api-influxdb-grafana/28037)

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**Author:** [@hominidae](https://discourse.nodered.org/u/hominidae)\
**Replies:** 4\
**Last updated:** [8 July 2020 20:15 UTC](https://discourse.nodered.org/t/power-forecasts-and-data-tuning-for-solar-installations-node-red-solcast-api-influxdb-grafana/28037 "2020-07-08T20:15:04Z")

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Hi folks, at home, I have a freshly installed solar power plant and now wanted to do some information gathering and analysis with its data. As I can already collect various energy based information in my home to mqtt a…

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## [Coral TPU on Windows 10](https://discourse.nodered.org/t/coral-tpu-on-windows-10/29573)

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**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 0\
**Last updated:** [5 July 2020 22:06 UTC](https://discourse.nodered.org/t/coral-tpu-on-windows-10/29573 "2020-07-05T22:06:43Z")

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The original thread is closed Google recently added support for the Coral TPU AI accelerator to Windows 10. A friend gave me a Windows 10 "mini pc" and asked if I could get my security system add-on running on it. I …

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## [\[Announce\] @node-red-contrib-themes/solarized-dark-grey](https://discourse.nodered.org/t/announce-node-red-contrib-themes-solarized-dark-grey/29504)

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**Author:** [@ristomatti](https://discourse.nodered.org/u/ristomatti)\
**Replies:** 11\
**Last updated:** [6 July 2020 13:39 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-themes-solarized-dark-grey/29504 "2020-07-06T13:39:11Z")

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I have just published my custom Node-RED dark theme. It's inspired by Ethan Schoonover's classic solarized dark color theme with the main difference of a dark grey background instead of a dark blue one. It's installed i…

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## [Formatting times & dates with moment.js examples](https://discourse.nodered.org/t/formatting-times-dates-with-moment-js-examples/29553)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 3\
**Last updated:** [5 July 2020 16:04 UTC](https://discourse.nodered.org/t/formatting-times-dates-with-moment-js-examples/29553 "2020-07-05T16:04:34Z")

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Since node-RED v1.1.0 support for the moment.js date/time library has been added, currently only available for jsonata expressions, but hopefully in time to also be added to the function node. I've included a few exampl…

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## [Event Timeline for an MQTT Camera](https://discourse.nodered.org/t/event-timeline-for-an-mqtt-camera/29070)

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**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\
**Replies:** 3\
**Last updated:** [27 June 2020 16:26 UTC](https://discourse.nodered.org/t/event-timeline-for-an-mqtt-camera/29070 "2020-06-27T16:26:03Z")

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Use Case You are sitting in front of screen having to keep an eye on what is happening somewhere. You want to be able to see the live video from your camera, get a snapshot whenever the motion detection is triggered and …

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## [RPi CPU Temperature monitoring - simple but informative](https://discourse.nodered.org/t/rpi-cpu-temperature-monitoring-simple-but-informative/28540)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 35\
**Last updated:** [26 June 2020 21:31 UTC](https://discourse.nodered.org/t/rpi-cpu-temperature-monitoring-simple-but-informative/28540 "2020-06-26T21:31:14Z")

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I have, just like many of us, several RPi's scattered around. Some are placed outdoor, indoor, in the ground and up in the attic. In total I counted to 10, crazy, really tried to re-think, well some got eventually be mer…

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## [Blue Iris v5 with INSTAR MQTT Cameras](https://discourse.nodered.org/t/blue-iris-v5-with-instar-mqtt-cameras/28718)

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**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\
**Replies:** 3\
**Last updated:** [22 June 2020 11:10 UTC](https://discourse.nodered.org/t/blue-iris-v5-with-instar-mqtt-cameras/28718 "2020-06-22T11:10:54Z")

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The version 5 of Blue Iris now sports an MQTT interface through which you can use a couple of Admin Commands to take control over the software with Node-RED. Connect Blue Iris to your Broker I am using an MQTT Broker/Ca…

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## [How to watch devices availability in a network](https://discourse.nodered.org/t/how-to-watch-devices-availability-in-a-network/7799)

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**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 26\
**Last updated:** [16 June 2020 00:56 UTC](https://discourse.nodered.org/t/how-to-watch-devices-availability-in-a-network/7799 "2020-06-16T00:56:20Z")

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Devices like Raspberry pi, ESP8266, camera, etc. are often used in a LAN (local area network). Using more "ip devices" rises the need to watch the connection. Here is a general solution based on the nodes node-red-node-…

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## [My Z-Wave heating solution](https://discourse.nodered.org/t/my-z-wave-heating-solution/28322)

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**Author:** [@Maximus1](https://discourse.nodered.org/u/Maximus1)\
**Replies:** 4\
**Last updated:** [15 June 2020 21:45 UTC](https://discourse.nodered.org/t/my-z-wave-heating-solution/28322 "2020-06-15T21:45:57Z")

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Two years ago I bought a Devolo Home Control (DHC) with some heaters. The DHC is really crap and i switched to an Everspring Z-Wave USB Dongle. After Installing all the depencies and modifying the original Flow found s…

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## [Epidemic Models](https://discourse.nodered.org/t/epidemic-models/27455)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 26\
**Last updated:** [15 June 2020 21:39 UTC](https://discourse.nodered.org/t/epidemic-models/27455 "2020-06-15T21:39:25Z")

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I have been following the remarkable COVID-19 pandemic charts posted by @janvda here and here, and I wanted to be able to make comparisons with predictions from contagious disease models and explore a few "what if" scen…

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## [Enocean Switch Dimming](https://discourse.nodered.org/t/enocean-switch-dimming/28315)

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**Author:** [@Techserv-krY](https://discourse.nodered.org/u/Techserv-krY)\
**Replies:** 0\
**Last updated:** [14 June 2020 14:03 UTC](https://discourse.nodered.org/t/enocean-switch-dimming/28315 "2020-06-14T14:03:42Z")

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I use it with a Tasmota Light but with a bit of code changeing you can use it with everything u need More infos for Enocean Enocean Gateway on Github // Update the timers to the context store let timers = context.get(…

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## [\[Flow\] COVID-19 country history charts based on total tests](https://discourse.nodered.org/t/flow-covid-19-country-history-charts-based-on-total-tests/25356)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 25\
**Last updated:** [9 June 2020 13:54 UTC](https://discourse.nodered.org/t/flow-covid-19-country-history-charts-based-on-total-tests/25356 "2020-06-09T13:54:44Z")

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I have found a cool github repository maintained by Our World in Data that is also reporting the total tests performed per day. Based on this I have created a node-red flow that allows to compare percentage of confirmed…

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## [STM32CubeMonitor: The Netflix of MCUs](https://discourse.nodered.org/t/stm32cubemonitor-the-netflix-of-mcus/27815)

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**Author:** [@Thierry](https://discourse.nodered.org/u/Thierry)\
**Replies:** 0\
**Last updated:** [5 June 2020 08:01 UTC](https://discourse.nodered.org/t/stm32cubemonitor-the-netflix-of-mcus/27815 "2020-06-05T08:01:52Z")

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STMicroelectronics is using node-red in their monitoring tool for STM32 microcontrollers

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## [Mosquitto listening on two ports (inside/outside LAN)](https://discourse.nodered.org/t/mosquitto-listening-on-two-ports-inside-outside-lan/27635)

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**Author:** [@stefan24](https://discourse.nodered.org/u/stefan24)\
**Replies:** 3\
**Last updated:** [4 June 2020 19:46 UTC](https://discourse.nodered.org/t/mosquitto-listening-on-two-ports-inside-outside-lan/27635 "2020-06-04T19:46:08Z")

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I have not found a way to initiate a command from my smartphone from outside my WLAN to Node-RED. I tried Telegram (chats arrive at the bot, but do not initiate anything in Node-RED, because they arrive from the wrong di…

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## [Convert Wind direction in degrees to Cardinal points](https://discourse.nodered.org/t/convert-wind-direction-in-degrees-to-cardinal-points/10931)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 49\
**Last updated:** [4 June 2020 18:42 UTC](https://discourse.nodered.org/t/convert-wind-direction-in-degrees-to-cardinal-points/10931 "2020-06-04T18:42:49Z")

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This change node will convert a payload in decimal degrees to Cardinal points N, NNE, NE....... It might be useful to others using online weather services to display wind directions in human readable form. \[{"id":"ab01…

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## [Phonetrack HomeAssistant GPS Logger Bridge](https://discourse.nodered.org/t/phonetrack-homeassistant-gps-logger-bridge/27690)

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**Author:** [@dugite-code](https://discourse.nodered.org/u/dugite-code)\
**Replies:** 0\
**Last updated:** [3 June 2020 02:24 UTC](https://discourse.nodered.org/t/phonetrack-homeassistant-gps-logger-bridge/27690 "2020-06-03T02:24:23Z")

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I threw together a quick way to bridge GPS data from the android app GPS Logger between HomeAssistant and the Nextcloud APP Phonetrack. Note: Returns the highest http response code thrown by either service, this can res…

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## [Dashboard as electron app](https://discourse.nodered.org/t/dashboard-as-electron-app/27579)

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**Author:** [@cinhcet](https://discourse.nodered.org/u/cinhcet)\
**Replies:** 3\
**Last updated:** [2 June 2020 14:01 UTC](https://discourse.nodered.org/t/dashboard-as-electron-app/27579 "2020-06-02T14:01:55Z")

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Hi, on android adding a webpage to the home screen is convenient and makes dashboards feel like native apps. Not so much on desktop. Therefore, I created a VERY simple electron app, which basically is really just a chr…

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## [How to get all Alexa requests WITHOUT any other skills](https://discourse.nodered.org/t/how-to-get-all-alexa-requests-without-any-other-skills/26783)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 7\
**Last updated:** [26 May 2020 21:40 UTC](https://discourse.nodered.org/t/how-to-get-all-alexa-requests-without-any-other-skills/26783 "2020-05-26T21:40:39Z")

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Executive Summary ... just prefix all your house #IoT commands with "Simon Says" :slight\_smile: And then listen out for them using node-red-contrib-alexa-remote2 Obviously, being called Simon doesn't make this method …

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## [Not ordinary using function node and flow.set/get](https://discourse.nodered.org/t/not-ordinary-using-function-node-and-flow-set-get/27286)

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**Author:** [@offreal](https://discourse.nodered.org/u/offreal)\
**Replies:** 4\
**Last updated:** [26 May 2020 09:15 UTC](https://discourse.nodered.org/t/not-ordinary-using-function-node-and-flow-set-get/27286 "2020-05-26T09:15:54Z")

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Hi, there. Did you using all function node features? Today I found solution how to make function node send specified message without any input msg. Just try this: \[{"id":"9c663e52.a1985","type":"function","z":"696d25…

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## [Webhook: Trigger iOS shortcuts from notifications](https://discourse.nodered.org/t/webhook-trigger-ios-shortcuts-from-notifications/10568)

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**Author:** [@sliemeobn](https://discourse.nodered.org/u/sliemeobn)\
**Replies:** 9\
**Last updated:** [22 May 2020 08:20 UTC](https://discourse.nodered.org/t/webhook-trigger-ios-shortcuts-from-notifications/10568 "2020-05-22T08:20:35Z")

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Last week I released the iOS app Pushcut which integrates push notifications with customizable actions that can either be iOS shortcuts or URLs. You can trigger the notification through a HTTP web API. I am sure it can b…

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## [Using a INA219 to measure voltage and current](https://discourse.nodered.org/t/using-a-ina219-to-measure-voltage-and-current/16407)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 4\
**Last updated:** [21 May 2020 14:47 UTC](https://discourse.nodered.org/t/using-a-ina219-to-measure-voltage-and-current/16407 "2020-05-21T14:47:46Z")

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A very short tutorial (for my IoT students) explaining how to use the INA219 device to measure voltage and current in a circuit. As with most of my projects, a Wemos D1 Mini is used to provide the control/sensing interf…

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## [Node-RED SSL reverse proxy w/ Google Oauth](https://discourse.nodered.org/t/node-red-ssl-reverse-proxy-w-google-oauth/25103)

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**Author:** [@VinistoisR](https://discourse.nodered.org/u/VinistoisR)\
**Replies:** 81\
**Last updated:** [20 May 2020 08:42 UTC](https://discourse.nodered.org/t/node-red-ssl-reverse-proxy-w-google-oauth/25103 "2020-05-20T08:42:53Z")

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edit: please see this post for most recent deployment instructions Here's a docker-compose.yml file to deploy Node-RED and Traefik, a reverse proxy that automates fetching, issuing, and renewing free SSL certificates fr…

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## [Debugging aid using MQTT Explorer](https://discourse.nodered.org/t/debugging-aid-using-mqtt-explorer/26413)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [18 May 2020 15:55 UTC](https://discourse.nodered.org/t/debugging-aid-using-mqtt-explorer/26413 "2020-05-18T15:55:39Z")

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Just thought I'd share a little technique that I'm finding quite useful I'm basically using my local MQTT broker to store logging information and then using MQTT Explorer as my inspection tool It lets me easily read …

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