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 for reading consumption meters with P1 customer interface and DLMS/COSAM protocol * The Arduino M-BUS meter example shows how you can program your own simple meters https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2024-06-25 https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2024-09-18 https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2024-11-29 https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2024-11-30 https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2025-11-28 https://elecena.pl/product/26142337/m-bus-slave-hat-for-raspberry-pi-pico 2025-11-29