It depends . . .
Newer PCs with newer ChipSets are a bit more tolerant regarding the Levels on the COM-ports. (They might even accept TTL-levels on RX).
Some (older) PCs require levels of +/- 12V.
However:
Even if sending Data from a PIC to a PC works
you have got to take care when sending data from PC to PIC
as the the Levels on the PCs TX-pin might ecxeed the PICs limits.
regards
Ralph
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There are only 10 types of people:
Those who understand binary, and those who don't ...
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