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Control lights, pc->relay->lights

R

RS82

Jan 1, 1970
0
Hi

I would like to switch on some lights (24v DC) using my PC - i was
thinking either serial \ parralell interface - or USB if that is possible.

As far as i can see i just need some kind of relay attached to the port, and
then send a signal to trip the relay. Is this right?

What kind of relay do i need? (If possible, i want one where i'd send a
signal and it would turn on, send a signal to turn it off - as opposed to
one where i need to send a signal constantly to have the lights on). Please
bear in mind i really dont know much about electronics.

Also, would it be possible to detect on the PC whether the relay is on or
off?

Thanks

Rs
 
B

Bill Bowden

Jan 1, 1970
0
RS82 said:
Hi

I would like to switch on some lights (24v DC) using my PC - i was
thinking either serial \ parralell interface - or USB if that is possible.

As far as i can see i just need some kind of relay attached to the port, and
then send a signal to trip the relay. Is this right?

What kind of relay do i need? (If possible, i want one where i'd send a
signal and it would turn on, send a signal to turn it off - as opposed to
one where i need to send a signal constantly to have the lights on). Please
bear in mind i really dont know much about electronics.

Also, would it be possible to detect on the PC whether the relay is on or
off?

Thanks

Rs

There are a few ideas to hookup relays to the PC printer
port shown here.

http://ourworld.compuserve.com/homepages/Bill_Bowden/page6.htm#PPRIC

-Bill
 
R

RS82

Jan 1, 1970
0
Thanks, Bill & Tom - both sources have helped me understand a great deal

rs
 
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