U0001210.30.206.181:380 / U0002 2025 Review. Char u+0002, encodings, html entitys: It appears the device sends back a response byte (02 in this case), followed by ascii bytes representing the card id.

It appears the device sends back a response byte (02 in this case), followed by ascii bytes representing the card id. String.strip, string.lstrip and string.rstrip strip whitespace by default, but take a char code as second parameter.