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emsesp / EMS-ESP

ESP8266 firmware to read and control EMS and Heatronic compatible equipment such as boilers, thermostats, solar modules, and heat pumps
https://emsesp.github.io/docs
GNU Lesser General Public License v3.0
302 stars 96 forks source link

Buderus Logamax plus GB112-11/19 with Buderus Logamatic ERC #210

Closed Gisbert1 closed 4 years ago

Gisbert1 commented 4 years ago

Dear proddy,

I have the above boiler and control unit, both are from the year 2000. As I do not find both devices on the list of supported devices, I like to ask if there is a chance that your EMS-ESP software together with the EMS gateway can work.

Is there a way to find out whether my devices are compatible to the EMS gateway and your EMS-ESP? I have some basic experience in microelectronic but no professional equipment, only basic equipment like multimeter, I have access to a local microcontroller group with equipment. Can you guide me to find out?

I'm searching so long to make my boiler smart but was not succesful so far. In the meantime I added thermocouples on the outside of the lines and more of these kind of things to get some information from the boiler. Idealwise I would like to change settings and this will be the case for a new boiler once the existing will break (now 19 years old, but still in good shape and working without troubles).

Best Regards Gisbert

proddy commented 4 years ago

Hi @Gisbert1 - did a quick search on the web and found this. Looks like your boiler is UBA1 compliant and EMS is only supported with UBA3 and higher. Worth reading the whole thread though for possible workarounds as I only briefly glanced at it (in google translate!)

Gisbert1 commented 4 years ago

Hi proddy,

with this information it becomes clear that my devices are NOT designed for EMS. But you helped me a lot with the link which included another link: http://www.picbasic.nl/thermostaat_nefit.htm

They brought up the idea to tune the desired temperature in an similar thermostat like the ERC. I will use this idea but I will do it slightly different: I'm going to use the same digital potentiometer X9C103 (0.1-10 kOhm) which I'm going to control with an ESP8266. There is in Arduino already a library for the potentiometer available which make things easier. Addionally I have already such a circuit in place for the outside temperature where I use a X9C104 (1-100 kOhm) instead of an NTC resistor; this works pretty fine.

Best Regards Gisbert

proddy commented 4 years ago

ok, good luck! Let us know how you get on.