You know, bit-banged serial in microcontrollers might be a good excuse to
revive split-speed async communitcations.  1200bps TO the PIC, 38400 FROM
the PIC - there would be enough time to check for a received character IN
BETWEEN each transmitted character, since receive bits are longer than
transmitted bytes...

(split speed modems (1200/150, FSK, usually) were popular (in limitted
circles) back before fancier modulation schemes were implemented...)

BillW

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