This is pretty cool stuff. PS Seismograph version 0.1.9 by PS3 developer deroad is a fully tested strong motion seismometer. Yeah you read that right. Not just another homebrew app or game. To utilize the seismograph you need to have a Jailbroken PS3 or one running CFW. The seismograph utilized all of the axis on your controller and this update has better resolution. You can also utilize this on standard def monitors. Check it out and deroad included the source code as well.
Here is deroad's changelog for version 0.1.9.
Changelog:
- 0.0.1 -
Initial Version
- 0.1.9 -
Added Cross, Triangle and Square Buttons on the screen
Added Triangle button to allow people to see only a graph (if you press it 4 times it will show again everything)
Added Square button to show the Max Gravity Accelleration of each axis (remind that G = 9.81 m/s^2)
Changed the FPS text to the sampling period (it will be shown as centi-seconds)
Added better buttons control.
Added PIC1.PNG
Changed ICON0.PNG
Source: