Simple Circuit Request

J

Jeff M

Guest
I'm an absolute beginner at the electroncis groups, so forgive me if this is
the wrong group.

I need to control an 120 VAC circuit with a PC. I'd like it to plug into a
USB or serial port, and the circuit will be opened or closed based upon a
control program running on the PC.

I think this is a simple request. However, when I googled for it, it came
up with so many hits that I didn't know where to begin. Neither did I know
how to refine the search.

So, I guess what I'm actually asking for is either a product, or search
terms.

Thanks.
 
"Jeff M" <jamcraven@yahoo.com> wrote in message
news:109n3n4ia15a42c@corp.supernews.com...
I'm an absolute beginner at the electroncis groups, so forgive me if this
is
the wrong group.

I need to control an 120 VAC circuit with a PC. I'd like it to plug into
a
USB or serial port, and the circuit will be opened or closed based upon a
control program running on the PC.
Click to expand...
Probably best to buy one. Google should find one near where you live...

See "Serial Isolated I/O Module" on this page...

http://www.electronics123.com/amazon/catalogue/c3-3-2.htm

or there are lots of parallel port cards around...

http://www.oceancontrols.com.au/controllers/parallel_relay_k074.htm

Colin
 
"Jeff M" <jamcraven@yahoo.com> wrote in message
news:109n3n4ia15a42c@corp.supernews.com...
I'm an absolute beginner at the electroncis groups, so forgive me if this
is
the wrong group.

I need to control an 120 VAC circuit with a PC. I'd like it to plug into
a
USB or serial port, and the circuit will be opened or closed based upon a
control program running on the PC.

I think this is a simple request. However, when I googled for it, it came
up with so many hits that I didn't know where to begin. Neither did I
know
how to refine the search.

So, I guess what I'm actually asking for is either a product, or search
terms.
Click to expand...
You can use a "solid state relay" It takes a few milliamps input.
You can connect them to the various control lines of the serial port with a
resistor and diode. Every electronics shop should have them and they come up
regularly on eBay

Wim
 
Check out what X10 devices can do at:

www.x10.com

It may be what you are looking for.


"Jeff M" <jamcraven@yahoo.com> wrote in message
news:109n3n4ia15a42c@corp.supernews.com...
I'm an absolute beginner at the electroncis groups, so forgive me if this
is
the wrong group.

I need to control an 120 VAC circuit with a PC. I'd like it to plug into
a
USB or serial port, and the circuit will be opened or closed based upon a
control program running on the PC.

I think this is a simple request. However, when I googled for it, it came
up with so many hits that I didn't know where to begin. Neither did I
know
how to refine the search.

So, I guess what I'm actually asking for is either a product, or search
terms.

Thanks.
Click to expand...
 
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