Does anyone have a really good =93phantom power=94 circuit for getting the =
most out of an rs232 port?
Ideally it would have as inputs multiple ~10mA @+10V or -10V (at least DTR =
and RTS) (~200mW) and provide 50mA at 3.3V (150mW) or thereabouts=85

The nominal goal would be to buffer and send =93occasional=94 serial traffi=
c over BTLE or one of the other =93low power radio=94 standards.  I figure =
with the advances in radios, this should be approaching feasibility.

thanks
Bill W


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