# Don't have oscilloscope? Now you do, and free!!

#### count_volta

Joined Feb 4, 2009
435
A couple of days ago I needed to use the oscilloscope to observe the behavior of the digital circuit I was designing for university. I was too tired to drive all the way to school to use their scope. So as always laziness is the mother of invention. I looked online and found this.

http://www.zeitnitz.de/Christian/scope_en

Its totally awesome, and all you need is a sound card to use it. You just connect your input into the microphone jack. It works exactly like a real oscilloscope and what amazes me is how accurate it is!!!

I later went to school and compared what the real oscilloscope gave me. Very close actually!!! And btw it has a built in spectrum analyzer!!!

Be careful, anything higher than 1V input and you will fry your sound card, I guarantee it.

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#### count_volta

Joined Feb 4, 2009
435
Thanks, good links. Will look into them.

Even if my oscope isn't entirely free, its so good I would even pay for it. It saved my ass.

When I built my circuit the first time it didn't work correctly, imagine if I had no scope. I would bring the circuit to school thinking that it works. That would not be good. Instead I fixed it and saw with the scope that it finally works.

#### SgtWookie

Joined Jul 17, 2007
22,229
Be aware that you can inadvertently destroy your sound card (and even your motherboard) if you are not careful with these types of things.

#### count_volta

Joined Feb 4, 2009
435
Actually this scope is free unless you want it for commercial use, which is true for most things.

• The use of the software and of the documentation is granted free of charge for private and non-commercial use in educational institutions
• Any commercial application requires a corresponding license (see below)
• Distribution and sale of the program is prohibited. Contact the author in order to obtain a resale license

#### alami__klm

Joined Mar 14, 2010
1
Thank you so much to all

#### redlight000

Joined Feb 26, 2010
66
Hi Burtus,
Just to say your link is very cool

cheers
redlight.

#### maxpower097

Joined Feb 20, 2009
816