Onion NFC-RFID Expansion [Discontinued] _MAKE_SENSOR_FINGER 7V LiIon/LiPoly battery

7V LiIon/LiPoly battery

This holds true even in the presence of many of the various acoustic or electrical noise sources

Cherokey expansion plate x1

Those items are not included

Onion NFC-RFID Expansion [Discontinued] _MAKE_SENSOR_FINGER 7V LiIon/LiPoly batteryThe new RFID & NFC expansion board for Onion! This board uses the PN532 controller chip, which is the most popular NFC chip, and is embedded in pretty much every phone or device that does NFC. It can read and write to tags and cards, communicate with phones (for example payment processing), and act like an NFC tag. If you want to do any sort of embedded NFC work, this is the chip youll want to use! NFC (Near Field Communications) is a way for two