wouter van ooijen wrote:
> The 7805 output can not harm the PIC, unless you hve funny things on the
> 7805 input. Which might be caused by your (long?) cables.

I have a network of PIC16F628, powered via UTP cable (2 wires for 24V 
and 2 wires for 485), and each is powered by a 7805.
I protected its input via a 1N4007 diode and a 10uF cap. Would have 
liked to place a 1ohm resistor but had no more room available.
Wiring goes for some 100-200mt.


-- 
Ciao, Dario
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist