This Arduino MKR Shield extends your Arduino MKR with functions for Smartmetering. The shield provides an M-Bus master to which other M-Bus devices such as electricity, water or gas meters (with appropriate interface) can be directly connected. Features: galvanically isolated M-Bus master interface M-Bus is supplied by an external power supply (9...30V) (the 36V for the MBUS are generated internally from this voltage) maximum 6 load units can be supplied can be combined with any Arduino MKR board https://elecena.pl/product/18950804/mbus-shield-for-arduino-mkr 2021-06-28 https://elecena.pl/product/18950804/mbus-shield-for-arduino-mkr 2021-11-27