Adafruit PN532 NFC/RFID controller breakout board Microcontroller Audio is played asynchronouslyas an

Audio is played asynchronouslyas an interrupt

The 3/8" width can be used on drivers as small as 3"

Ogg Vorbis

Its an  ESP8266 WiFi module with all the extras you need

but don't let the size fool you

Adafruit PN532 NFC/RFID controller breakout board Microcontroller Audio is played asynchronouslyas anThe PN532 is the most popular NFC chip, and is what is embedded in pretty much every phone or device that does NFC. It can pretty much do it all, such as read and write to tags and cards, communicate with phones (say for payment processing), and 'act' like a NFC tag. If you want to do any sort of embedded NFC work, this is the chip you'll want to use! NFC (Near Field Communications) is a way for two devices very close to each other to communicate.