Egyras

@maertsen did you tried to connect NodeMCU? I have tried NodeMCU and wemos d1 mini with small luck only. I believe signal level shifter is requered as Panasonic uses 5V...

@IgorYbema I have only test sketch, will post when get my Wemos D1 mini working. It post data to mqtt, it would be better to format all as json as...

@IgorYbema wemos and all othe esp8266 modules tolerates 3.3V signal level and Panasonic gives 5V signal, so signal shifter should be used according me. Tx accord me was working on...

@IgorYbema @maertsen did you guys tried to connect wemos D1 or other ESP8266 controller ? I have uploaded my test sketch which made today, no luck even using logic converter...

Ok, found my spare board https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/overview and all works using logic level shifter 5V-3.3V on TX as RX on this board already tolerates 5V signal. Testing sketch gives heat shift...

@IgorYbema I used level shifter on TX pin only, I believe that latest original Wemos D1 mini could have some issues with TX pin. Didnt compared newer ver. with older...

A little progress, testing my latest code in Openhab. Need to doublecheck some decrypted values, water flow can be wrong. Also need to find out other bytes. 

@IgorYbema IO ninja gives free trial and its easy to launch serial port with a few clicks :) Latest code will be tonight.

@IgorYbema I have tank connected, its not all-in-one unit. For tank data currently I found current tank temperature and set temperature, there is other parameter like Delta which tells pump...

@IgorYbema I will decode these commands, basically it will be heat pump modes like Auto, heat+dhw, dhw only and etc. Currently have only heat pump mode responses. I use my...