It is the unofficial leader of ICa of Hokuriku Railroad bus. And holding the ICa in the NFC-powered devices, the balance and usage history can be queried. Further, it is possible to check at any time the balance of the check at the end by placing a widget. And for informal, data registered in the ICa does not mean that the public, security of the data that is displayed in the application is not possible. Please use with knowledge of it.
I have been supported by http://bit.ly/ICaReader defects and, the demand etc..
I was allowed to refer to the site below for data of ICa. http://jennychan.web.fc2.com/format/ica.html
Also, I'm using the nfc-felica library to read FeliCa. http://d.hatena.ne.jp/Kazzz/20110122/p1