Rpi4 uart & boud rate

[Rudinskas]

Please help me identify the issue.

I have a Raspberry Pi 4, and I connected a TTL USB adapter to its UART serial port.

When I use a direct connection via Ethernet SSH with MINICOM, sending data to the Raspberry Pi 4 UART port works perfectly. I receive all packets on the TTL USB adapter connected to my PC.

However, when I run wmbusmeters with the same baud rate, the data does not seem to transmit correctly—either the baud rate is mismatched or something else is wrong.

What could be causing this issue?

I need to get the correct packets to the PC TTL USB adapter, then I will go forward.

Thank you in advance!