This is the simplest oscilloscope you could make. I made this to measure signals from 0 to 12 Volts directly without any switches. It is ultra sensitive and portable.
The app I used is called "Oscilloscope Pro 2" from the play store.
Feelings by STEAM PHUNK / steamphunk
Creative Commons - Attribution-ShareAlike 3.0 Unported- CC BY-SA 3.0
creativecommons.org/licenses/b...
Music promoted by Audio Library • Feelings - STEAM PHUNK...