Using ESPHome DSMR component with "stadsverwarming"/city-heating heat energy meter Multical 402 with P1 port

ESPHome
1

Hi,

Is it possible to use the ESPHome DSMR component with a Multical 402 heat energy meter that has a P1 port?
On the docs page I see no reference to this. Only for electricity and gas meters. Not for heat energy meters connected to a heat exchanger for city-heating / stadsverwarming / warmtenet.

I tried it today, but all I’m getting in the wireless serial log is the WiFi signal strength once a minute.

Is there a way to output/view the raw telegram that the Multical is sending? At this point I’m not even sure there is data coming out of the Multcal.

Thanks for the help!

2

It’s been a while since I posted this question. Bumping it in the hope someone can point me in the right direction.

How could I reprogram my ESPHome DSMR reader that I use with my electricity meter, to do the following:

  • Read the serial telegram from the meter.
  • Output the telegram in its raw state to the webserial monitor?

Basically a serial relay. Take the input from the esp8266 rx pin, and print whatever comes in to the webserial monitor.

Thanks!