M-Bus Raspberry Pi HAT

With this Raspberry Pi HAT you can extend your Raspberry Pi with functions for smart metering. The HAT provides an M-Bus master to which other M-Bus devices such as electricity, water or gas meters (with the appropriate interface) can be connected directly.

Features:

• M-Bus (Meter-Bus) Master
• powered by an external 9..30V DC voltage or by the 5V DC of Raspberry Pi (36V for the MBUS will be generated internally from this voltage)
• up to 6 unit loads can be powered
• isolated interface
• selectable UART via jumper (with Raspberry Pi4 or Pi5 only)
• indicator LEDs for RX and TX 
• removable block terminal for bus connection
• stackable header

Software:

With libmbus, powerful C++ software is available for the Raspberry Pi, which can be used with the M-BUS HAT. If you prefer Python take a look to the pyMeterBus project.

This HAT is also available at ThePiHut.com.