add README.md
add line breaks
add protocol specification
add firmware's source codes and project
change hard-tab to soft-tab
implemented usart
add timer2 for generate 1ms interval for button proc
add hex file
add .gitignore
add Android project first
change hard-tab to soft-tab
add Bluetooth.java. list paired devices only.
implmented scan devices
add Bluetooth.isEnabled and launch to enable settings activity
add ranalyzer
add overrun debug code
change read serial method polling to interrupt

* シリアル通信の方法をポーリング方式から割り込み方式へ変更
* バッファーサイズ、アドレスを変更
* ハードタブをソフトタブに変更
add debug code for send data
implement connnect to Blutooth device
implement for HC-05