Heatpump

[TrystanLea]

Hello @Frans

@Frans

I ordered a Kamstrup 302 whit wired Mbus to get the data from the heat system. I assume this will fit also for the Mbus signals.

The heatpump monitor firmware (https://github.com/openenergymonitor/HeatpumpMonitor/blob/master/Firmware/Arduino/HeatpumpMonitor_AutoTemp_MultiPage/HeatpumpMonitor_AutoTemp_MultiPage.ino) only supports Kamstrup 402, 403 and Sontext 531 at the moment.

You add support for further meters yourself but its a bit of a complex procedure of reading through the meter datasheets, finding the register positions and then updating the heatpump monitor firmware to support the new meter.

There is a tool that helps with this process here: https://github.com/openenergymonitor/HeatpumpMonitor/tree/master/Firmware/Arduino/MBUS_Reader it reads from the any meter and prints out whatever it can work out. You could try that as a starting points perhaps?

@Frans

I like to order the ESP8266 Wi-Fi Heat pump Monitor but like to know if this is also could use this for a wired cat network.

The ESP8266 Wi-Fi Heat pump Monitor is WIFI only Im afraid.

@Frans

Is it possible to connect this whit a RFM12B 868MHz or do you have a RFM69CW that could fit whit my Emonbase I already use.

Yes it uses a RFM69CW already.

@Frans

Another option for me could be to use one EmonTX V2 I have. Can this be prepared for Mbus?

The MBUS reader requires specific hardware to work. You could build this circuit and perhaps use with an EmonTx v2 but I think it would be a challenging project. Here’s the original forum post with a link to the MBUS reader schematic M-Bus ? | Archived Forum

Hope that helps!