title: How would program/create a custom NFC reader-writer?
body: <p>I'm trying to create a custom NFC reader/writer. I've been able to use a linux machine with  Eclipse to write a java program (and daemon) that controls a reader writer like an ACR122U. So basically on shutdown and startup, it can read nfc data and then transmit it. But now I want to downsize this. I want to put breadboard together a device that is way smaller (palm of your hand)  that reads an NFC tag/phone and transmits it back through a serial port (I'm assuming that's easiest). I understand I need a microcontroller and a PN5XX chip. I'm thinking I need a flash rom to put the instructions on. Does anyone know how I could get started creating this?  </p>