ChrisNov 24
Hey Fediverse! 👋
New here and looking to connect with folks in #OTSec, #SmartHome, #HomeAutomation, #KNX, oversized #Homelab setups (#Proxmox / #OPNsense / #Docker) and the whole #FOSS / #OpenSource world.
Also into #3DPrinting and currently turning my house into a fully automated playground. 🛠️🏡
Say hi if you’re into similar things!
Show threadfarmio / Matthias AlphartNov 24
@ChrisLink Hi 👋!
Show threadChrisNov 24
@farmous Hey, thanks! 😊
Your name definitely rings a bell — I think we’ve chatted before in the Home Assistant forum.
If I remember correctly, the first blueprint I ever used was actually your Hue ↔️ KNX blueprint! 💡🔧
Great to meet you here!
#HomeAssistant #KNX #Hue #SmartHome
Show threadfarmio / Matthias AlphartNov 24
@ChrisLink If you had a question about Knx there, chances are quite high. I'm maintainer of the integration 😉
Nice to meet you again here!
Show threadBoyesen
@farmous @ChrisLink Hey, nice to meet you here! Just started planning a house with KNX, will definitely (later) also use homebridge. Super excited already :-)
Dec 14 at 9:36pmWeb
Show threadChrisDec 14

@boyesen @farmous
Hey, nice running into you here! 😊
I’m currently planning a simple, "native" KNX integration between my ventilation system and domestic hot water heat pump.

Goals:
• key parameters on the KNX bus (without spamming it 👀)
• basic control even if IT / Home Assistant is down
• all the #dataporn flowing into the #Homelab 📈🖥️

Anyone else doing #KNX and #HVAC #heatpump integrations?
How do you balance low bus traffic vs “still want the data”?

Show threadfarmio / Matthias AlphartDec 15

@ChrisLink @boyesen I guess heat pumps don't require sub-second precision to be controlled, do they?
If you really require high resolution sensor data, Knx isn't the right tool.

Other than that, I'm more or less happy with my ABB ClimaEco heating controller (AC/S). It's a generic Knx application controller that's ETS configured (which imho is a downside). But I don't use a heat pump myself - shouldn't make much difference though.

Show threadChrisDec 15

@farmous @boyesen
Both my ventilation system and domestic hot water heat pump speak Modbus RTU.
The plan is to intercept them via a Modbus RTU → TCP gateway.

From there:

Minimal, selected values → KNX via a Modbus TCP ↔ KNX gateway

Richer data set → Home Assistant directly on the Modbus TCP level

One RTU bus, multiple TCP clients, different consumers depending on their strengths.
Simple where it needs to be, detailed where it helps.

#HomeAutomation #Modbus #KNX #HomeAssistant #SmartHome