Switching to floor heating, my oil heating didn't regulate temperature very stable and the heating water was to hot. As the support couldn't change it to an ideal behaviour and I didn't want them to have another (third) try I pay for, I did it myself. :)

Funcionality:

• measure temperature bevore and after mixer and from oil heating
• calculate mixer settings from these three temperatures
• adjust mixer

open items:

• finish nextion support
• test MySensors integration
• finish AC detection
• add logic for debug tab

specialities:

• arduino pro mini 16MHz voltage set to 3.3 V (instead of 5V)

status:

• in production with a TM1638 LED display and buttons (older sketch)
• building a second controller to finish development