Note: This question only applies to the [https://github.com/adafruit/Adafruit_NFCShield_I2C I2C Library]. The [https://github.com/adafruit/Adafruit-PN532 SPI library] doesn't handle the timing the same way. | Note: This question only applies to the [https://github.com/adafruit/Adafruit_NFCShield_I2C I2C Library]. The [https://github.com/adafruit/Adafruit-PN532 SPI library] doesn't handle the timing the same way. |