Hi, TI engineer
PGA450Q1EVM-S board is in use and refer to sldu019b.pdf (PGA450Q1EVM-S User's Guide).
2.3 UART When receiving data using Command1, Command4, etc. in Command List, it looks like a random value and it seems that data output proportional to distance does not work.
(The same symptom of two modules)
(Power is 9-12V DC, UART 19200BPS is used)
One more thing to check is that I wonder if this EVM board does not have a DACO (PIN 16) output at the factory.