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Chris McSweeny wrote:
> Given standard RS232 levels, you always have power available between Rx (as
> seen from your PIC perspective) and GND - it's just that sometimes it's +ve,
> sometimes it's -ve.

Hmm, I was thinking he was using a 5v GPS module rather than something
with a true RS232 output. If it is true RS232 voltages then certainly
there will be power available.

- --
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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