Registration for Node-RED Con 2025 opens soon!

We’ll announce it here, but if you'd like an email reminder, our sponsor FlowFuse will send one out.

Sign up here: https://flowfuse.com/blog/2025/06/announcing-node-red-con-2025/#would-you-like-to-attend%3F

*MIRACULIX* solar power system
==============================

AC power: 98.2W
AC current: 0.42A
Yield today: 617Wh
Yield total: 888.674kWh
Total DC power: 103.1W
DC power module 1: 51.6W
DC power module 2: 51.5W
#Synology #NodeRed #ioBroker #SmartHome #Yuma #Balkonkraftwerk #balconypowerplant #erneuerbareEnergie #renewableEnergy #Energiewende #OpenDTU #Hoymiles #Miraculix

Got a brilliant Node-RED project to share? Our Call for Papers for Node-RED Con 2025 is still open!

We're keen to hear about industrial applications, but all inspiring Node-RED stories are welcome.

Submit your talk: https://www.papercall.io/node-red-con-2025

I've been doing a bit of @MCQN_Ltd project archaeology of late. As a result I'm rather pleased with getting this LED to blink in response to the Mastodon API

I've gone live!

Neurodivers.cat - Wir bauen eine neue Instanz - Gentoo - GoToSocial

#owncast #streaming #Linux #Gentoo #Server #SmartHome #Grafana #NodeRed

https://owncast.grautier.eu

Hat irgendjemand schon mal versucht #deltachat für Benachrichtigungen aus Smarthomesystemen wie Nodered, Homeassistant etc zu nutzen? Oder gibt es ggf einen CLI Client mit ner API die man aus solchen Systemen raus aufrufen kann. Dementsprechende Bist könnte Delta Chat zu einer coolen Alternative zu Telegram machen.
#smarthome #homeassistant #nodered @delta

*MIRACULIX* Threema Gateway
===========================

#Zigbee or #Hunfun device disconnected!

Sent #Threema message to @my_millennium

*MIRACULIX* Threema Gateway
===========================

#Zigbee or #Hunfun device disconnected!

Sent #Threema message to @my_millennium

*MIRACULIX* Threema Gateway
===========================

UPS battery check started. Server on battery!

Battery runtime: 2737 secs

Sent #Threema message to @my_millennium

My son, the CS major, helps me program my #linux based #raspberrypi pool controller. We use #nodered because it gives a really nice little dashboard and controls all the GPIOs well.

I was looking into the code and spotted this lovely little bit of type coercion. I can completely relate to what kind of mood he was in when he probably found some stupid bug because it was dealing with the letter "0" instead of the number 0.

Guten Morgen, ihr Trötnasen!
Ob sich das Warten lohnt? Oder scheitert es an der Bürokratie?
Und ja: es wird diesmal ein E-Auto sein!
Welche #wallbox könnt ihr empfehlen? Budget bis 750 Euronen, 11kW, sollte WLAN tauglich sein und sich mit #nodered bzw. #homeassistant steuern lassen.

To people who use #HomeAssistant, do you need #NodeRed to get the most out of it? Found this guide to setting up HomeAssistant in #Docker that helped me get both installed, but Node-Red's interface is pretty much unusable with a #ScreenReader, and I'm thinking of uninstalling it.
#SelfHosting #SelfHosted #RaspberryPi #RaspberryPi500 #RPi #RPi500 #Linux #Stormux #ArchLinuxARM
@selfhosting @selfhost @selfhosted

OMG - What a ride... after tinkering and yelling at clouds @nocci was able to fix a lot of #NodeRED Code so my flow is way cleaner.

First pic is the whole mess noccis brain spit out yesterday and second shows his work after putting some "real" coding effort into this thing here. (now there are emojis)

(there are maybe some useful infos for you in the alt-text)

Over the past few days, I "channeled" my inner nerd into building an automated radiation detection system using open-source tools.

The device combines an ESP32 running #ESPHome for sensor data collection, my #HomeAssistant for centralized smart home integration, and #NodeRED for automating hourly Fediverse updates via a bot account

@Radiation_SL (since this Geiger counter is located in northern Germany ( #Schleswig )

Technical Breakdown:

Sensor: Radiation D-v1.1 (CAJOE) - radiation detector

Connectivity: ESP32 transmits via Wi-Fi to Home Assistant

Case: #3dPrinting the case (photo) - base is black and the lid is blue and shows the logo of "Fallout" (pc game/ TV series)

Automation: Node-RED flow formats data into ActivityPub messages

Decentralized Sharing: Posts include μSv/h readings

While this started as a hardware tinkering project, recent global events — nuclear rhetoric in conflict zones, aging power plants, and insufficient transparency in environmental monitoring — made me realize decentralized citizen science could play a crucial role.

Open-source tools eliminate single points of failure, and Fediverse integration ensures censorship-resistant data sharing.

Feel free to follow my bot account I mentioned above, if you are interested.

If I can find some time I will write a blogpost about the build process and link it in the bio / or just toot about it.

​​

Stay informed about the latest radiation levels in northern Germany (in a small town called Schleswig) with this small and tiny bot.

It retrieves microsievert (µSv) data every hour from an #ESPHome device, seamlessly integrated with #HomeAssistant and #NodeRed.

This data is then forwarded to this #Sharkey instance, ensuring you receive timely updates on your social media feed.

Stay safe and stay informed! ​​

I was looking around for a #selfhosting option that would work like #Zapier or #IFTTT.

Maybe I need to give #nodered more of a chance? It felt "dated" (first impressions).

#n8n gives me all of the fake Open Source ickiness and I don't want to invest much in something I might lose after a bad business decision is made.

What are some other great projects out there?