>    Anyway, I've changed my protocol  so a byte with a value like 255
>means PacketStart. Now I can send any value between 0-254 (almost 8 bit
>values) and just need to send an extra byte at the start of  the packet.
>For large packets this would make the comunication a bit faster.

You could always reserve another character (say 254) as an escape character,
and then esc/255 means you are sending 255 instead of start of packet, and
esc/esc means you are sending the value of the escape character.

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