Oscilloscope (오실로스코프)

analyze audio waveform thru mic or audio jack

ver 1.3 new functions

- using SurfaceView class

- added peripheral device menu

- added help menu

fuction

1. adjust time division

2. adjust voltage division

3. adjust raito of voltage

you can adjust voltage ratio according to devices

because they are different from each other with audio input level

4. run/stop : if you want to stop waveform, you can do it