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2019 Radiocrafts AS
MBUS User Manual (ver 2.01)
MBUS USER MANUAL
2 Basic Functionality
The figure below shows a simplified block diagram of the module:
Figure 1
– Block diagram
The host use the UART Interface to send and receive Wireless M-Bus data. The UART packet content, like the
addition of RSSI, CRC and start/stop bytes, can be changed in the configuration mode.
When the module receives a Wireless M-Bus packet over RF it will send the packet over the UART interface on the
TXD line. When the host MCU wants to transmit a Wireless M-Bus packet over the RF, it must send the packet
through the UART interface on the RXD line.
Figure 2
– Wireless M-Bus Link
