paul mcdowell wrote:
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totaly hypothetical if someone is experimenting what can they do to insure they dont break anything? on the board should one put a buffer of some sort on the ports to protect them?

Yes, I should have done that - I bust two stupid amplifier boards this week that needed a half-assed power supply configuration (not described in the docs) else plugging in a serial port fries the %^£&*$*$) thing.

Even the pros have bad weeks.

Steve