I know the voltage produced by the com port is low (around 5 volts i think) what I want to do is use that voltage to pull in a relay which switches in a bigger voltage - assuming the relay can switch on a 5 volt supply??
Cheers
Chris
;)
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I know the voltage produced by the com port is low (around 5 volts i think) what I want to do is use that voltage to pull in a relay which switches in a bigger voltage - assuming the relay can switch on a 5 volt supply??
Cheers
Chris
;)
I think it's possible, but I dont' know if I'd reccomend it.
Using the PC power supply directly to power a relay is
not adviseable. But I'd try it anyway.
I know there are interface boards that wil take in signals
from a computer and trigger relays.
If you just have a single input/output I suspect that
one could be had cheaply (under $100).
Allen-bradley
National insturments
Omron
are just a handful of manufacturers.
There are lots more.
have fun.