RFID NFC PN532 SHIELD IC CARD EXPANSION BOARD ARDUINO

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DESCRIPTION

DESCRIPTION

This shield is designed to use I2C or SPI communication protocols. I2C is the default, as it uses fewer pins: analog 4 and 5 are used for I2C (of course you can still connect other I2C devices to the bus). Digital #2 is used for "interrupt" notification. This means you don't have to sit there and 'poll' the chip to ask if a target tag has been found, the pin will pull low when a card, phone, etc is within range. You can adjust which pin is used if you need to keep digital #2 for something else. It is also easy to change the shield over to SPI where you can use any 4 digital pins by shorting two solder jumpers on the top of the PCB. Compatible with any "classic" Arduino - NG, Diecimilla, Duemilanove, UNO - as well as Mega R3 or later. For using the I2C interface with Mega R2 or earlier, two wires must be soldered as the I2C pins are in a different location on earlier Megas.

FEATURE

  • The chip uses NXP's PN532 NFC dedicated chip. 
  • Can be set via jumpers UART, SPI, and I2C interface communication. 
  •  The integrated 3.3V LDO, the input voltage 3.6V ~ 6.0V, onboard power indicator.
  • Leads all functions PN532 pin, convenient secondary development. 
  • All SMD components factory welding, stable quality, appearance neat appearance. 
  • The farthest reading distance of up to 7.5cm (with the size and location of the card on) 
  • According to the official website of the appropriate changes to the original file location and
    trace elements to make it more beautiful and tidy.
  • Gift cards and NTAG M1 white label card for each one.