Home Automation Domotica Forum Europe, Bwired Forum

I have not made any progress since my original post (unfortunately my entire home automation efforts have been on hold since then, I'm planning to get started again soon).

You say it sends /?!, does that mean it sends data periodically? Or when you press the button?

Hi folks, trying to read stuff from my P1 port, I found that there wasn't any C/C++ code around that really properly parsed P1 messages (only some basic pattern matching stuff). So I set to coding for a few days and created a new library: https://github.com/matthijskooijman/arduino-dsmr It's aimed a...

Hey folks, I've been trying to read my smart meter through the P1 port (with success). However, digging through the P1 port specs, I noticed that the gas meter readings are only updated once per hour (since the gas meter only sends the readings to the electricity meter once per hour wirelessly). Sin...

Your observations seem right to me, though I'm by no means an expert. If you want more info and have specific question, you could try calling the Nefit customer sevice. I did that before and even though they didn't have any actual protocol documentation available for end users, they actually tried h...

Nothing yet, but this is still on my todolist.

What I've understood from Nefit is indeed that newer heaters (not sure if they're still called ecomline?) use EMS, but older ones like the one I have from 2000 or so use an older protocol.

pbrand, on Linux the "hd" (hexdump) tool can generate this output from a raw binary file. I think the "xxd" command also supports it. Also, it's the same format used by many (graphical) hexeditors on different platforms, perhaps you can find one for your platform?

Looking at my own code , the year is the lower 6 bytes of the second byte, so 0x8e & 0x3f == 0xe == 14 Looking at the original post in this thread, it says: Year : (value & 0Fh)+2000d So I think that means: 0x178e & 0x0F == 0xE. So value is _both_ bytes (in big endian ;-p), not just the ...

Perhaps you could just hook up a relay to the on/off connection of your boiler and no longer need thermostat at all? I have something similar set up: An Arduino with RFM22 module listens to my Max thermostats and if any one is open, it switches a relay, which shorts the on/off connection on my boile...

Copying the README would be fine, AFAICS you have then fulfilled the only condition in the MIT license, which is to include the license notice in all "copies or substantial portions" of the software. Alternatively, I hereby give you permission to redistribute my RF22-related source files u...

firefox0815, cool that you made progress sending messages. Good to see my code is being useful for you :-) However, I just noticed I didn't include any copyright or license info in my code (which technically means you're now violating copyright law by redistributing my code ;-p). However, that wasn'...

Sorry, I haven't actually tried sending messages yet. Also, I'm probably going to move away from the ELV Max! system soon, so I don't expect to work on the code any more either...

Thinking, "it never hurts to ask", I sent an e-mail to ELV to see if they could provide any extra documentation about the system. It didn't actually get me anything, as was to be expected of course. I'll share the exchange here, for future reference. I've been experimenting with your ELV M...

Perhaps if you chain the Easy Connect adapter with an EMS -> Opentherm converter from Nefit, but I'd not get your hopes up... Regarding the ecomline protocol: I've opened up my moduline thermostat and found it contains some chip labeld "betronic irtas v1", which is mentioned on a lot of ch...

Ah, indeed, I missed that point. Seems that the "Easy Connect" adapter converts both OpenTherm and the older Nefit protocol to the EMS protocol (I presume) to work with the Moduline Easy. Still, for me that doesn't really help me, since I want to control my kettle for my own zoning system,...

I don't think so, that's about the brand new moduline easy, which uses the newer EMS protocol (and according to my service technician does not work with the older ecomline boilers...).