Android App built with the accelerometer sensor.

It's an Android app based on the accelerometer sensor. The app has the following features: 1. **Step counter**: Let's say you hold the phone in your pocket, and you make a few steps in a direction. The phone needs to count the steps based on the moves the phone does. The distance will be also calculated : average_step_lenght * step_number. 2. **Fall detector**: Again, you hold the phone in your pocket, and let's say you accidentally trip and fall. The phone should alert this with a sound. Again, it's all about the moves the phone does. The user will be able to select a certain sound from the phone's memory. The features are based on the moves made by the phone, moves detected with the accelerometer sensor. I also need a documentation for the app, like 20 pages.(design, implementation, testing, results, user interface, conclusions).