Resolving the "handshaking error: unexpected response 0x68" requires a systematic approach:
Imagine two metronomes ticking at different speeds. Device A sends a bit every 1ms (9600 baud), but Device B listens for a bit every 0.104ms (115200 baud). Device B will chop the incoming signal into the wrong bits. handshaking... error unexpected response 0x68
The hexadecimal code "0x68" corresponds to the decimal value 104. In the context of computer networking, this value is often associated with the Transport Layer Security (TLS) protocol, which is used to establish secure connections over the internet. handshaking... error unexpected response 0x68