how to make oscilloscope with laptop

[rajaram04]

Hello sir
sir is it possible to make oscilloscope by using my computer or laptop in home ? how its possible ? please explain what to do

 

[Genovator]

Yes. It requires the sound card of your pc...

http://www.dosprinter.net/lptscope/

http://www.zelscope.com/

 

[rajaram04]

sir is there any possibility of hazard to sound card ?

 

[Genovator]

Any PC works on 5v logic voltage. So you have to make sure the input amplitude should not cross 5v. If you are working on circuit with high voltage, use a high value resistors of 1K to 1M ohm, as required. A high value potentiometer can help you to adjust the amplitude.

 

[rajaram04]

sir incase of laptop i ve only a mic-in jack so may i proceed with that only ?

 

[Genovator]

Yes. Mic-in is only needed... Make sure you have the audio drivers installed in your PC and it detects the mic port.
They have mentioned in their site to use 1 volt as input. Please go through these FAQ...
http://www.zelscope.com/faq.html

 

[Ice-Tea]

Picoscope is another option. However, as bandwidth requirements rise, price does too and as far as I know the delta with 'discrete' scopes becomes smaller...

 

[rajaram04]

Picoscope is another option. However, as bandwidth requirements rise, price does too and as far as I know the delta with 'discrete' scopes becomes smaller...

now what is picoscope ?

 

[Ice-Tea]

It's in the link.