This M-Bus Slave HAT is an add-on board that allows the Raspberry Pi Pico to function as an M-Bus (meter bus) slave node. It is based on the TSS721 M-Bus Transceiver IC and provides communication via UART0 or UART1.

The HAT features an isolated interface and can be used to read consumption meters with a P1 customer interface or create custom meters for M-Bus systems. Software support includes example codes for Arduino IDE to read meters and implement simple meter functions.

We also have the M-Bus Master HAT here

Note: Raspberry Pi Pico is NOT included

Features

• M-Bus (meter bus) slave node
• Based on the TSS721 M-Bus Transceiver IC
• Communication with Pico via UART0 or UART1
• Isolated Interface

Connection Example – Electric Meter with P1 Port

Resources

• Datasheet

Software

• Arduino IDE
  • On our GitHub account we have provided example code forreading consumption meters with P1 customer interfaceand DLMS/COSAM protocol
  • TheArduino M-BUS meterexample shows how you can program your own simple meters