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Arduino library for SPI and I2C access to the PN532 RFID/Near Field Communication chip

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Adafruit-PN532

Compatibility

MCU Tested Works Doesn't Work Not Tested Notes
Atmega328 @ 16MHz X SPI & I2C Works
Atmega328 @ 12MHz X SPI & I2C Works
Atmega32u4 @ 16MHz X Follow instructions at https://learn.adafruit.com/adafruit-pn532-rfid-nfc/shield-wiring#using-with-the-arduino-leonardo-and-yun to move pin 2.
Atmega32u4 @ 8MHz X SPI & I2C Works
ESP8266 X SPI only, I2C clock stretching not supported
Atmega2560 @ 16MHz X SPI & I2C Works
ATSAM3X8E X SPI & I2C Works
ATSAM21D X SPI only, I2C clock stretching not supported. Use programming port.
ATtiny85 @ 16MHz X
ATtiny85 @ 8MHz X
Intel Curie @ 32MHz X
STM32F2 X
  • ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
  • ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
  • ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
  • ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
  • ESP8266 : Adafruit Huzzah
  • ATmega2560 @ 16MHz : Arduino Mega
  • ATSAM3X8E : Arduino Due
  • ATSAM21D : Arduino Zero, M0 Pro
  • ATtiny85 @ 16MHz : Adafruit Trinket 5V
  • ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V

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Arduino library for SPI and I2C access to the PN532 RFID/Near Field Communication chip

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