Table of Contents

Adafruit PN532 RFID Breakout Board with ESP32
- Serial Interface Signals
- Antenna Design

Adafruit PN532 RFID Breakout Board with ESP32

NXP PN532 Datasheet: PN532_C1.pdf

cdn-learn.adafruit.com_assets_assets_000_002_710_original_rfid_nfc_id789_lrg.jpg

Source: https://learn.adafruit.com/adafruit-pn532-rfid-nfc?view=all

Source: https://learn.adafruit.com/adafruit-pn532-rfid-nfc/downloads

Serial Interface Signals

SPI	I2C	UART
SCK
MISO
MOSI	SDA	TX
NSS	SCL	RX
Common
IRQ
RSTOUT_N
VDD/3.3V
GND

Antenna Design

Adafruit: https://cdn-shop.adafruit.com/datasheets/PN532_AntennaDesign_v1.0.pdf
NXP AN1445 + Excel Sheet to optimize antenna: https://www.nxp.com/docs/en/application-note/AN1445_An1444.zip