Hi,
I want to display data, obtained from an analog input pin, in waveform shown on computer at real-time.
How can I do this?
Thank you!
An arduino can be your Analog to digital converter as well as you data serial transmetter to your PC (using USB for example). You also need to make a software on your computer that read the data and convert it to your image. Try to find PC and Arduino based oscilloscope. An example is always a good way to start quickly.
What frequency are you looking at.
The real time capability of this setup is not good.
You can try Simplot
http://forum.arduino.cc/index.php?topic=58911.0
or Visual Analyzer
If not good enough, then you need an external device, i.e. an oscilloscope.