I'm trying to build a handheld device which can communicate bidirectionally with an NFC-enabled Android phone. Generally, the phone will send some arbitrary command, and the handheld would then respond with some data.
The cheapest NFC chip I've found is this one from ST.
Can this chip be used to implement bidirectional communication? If not, what features/standards do I need to be looking for in an NFC chip?
Still trying to wrap my head around the technology. The words MiFare and Felica keep coming up, but the chips seem to be more expensive, and I'm not sure if they are necessary.