ESPHome component for Multical 401 and Multical MC66C.

Multical 401 custom sensor for ESPhome. Also works with Multical MC66C, needs some changes in ESPhome config (uart settings, see YAML)

Readout via IR-head; see references.

References:

https://elektronikforumet.com/forum/viewtopic.php?f=2&t=79853

https://wiki.hal9k.dk/_media/projects/kamstrup/schematic.pdf

https://wiki.hal9k.dk/projects/kamstrup