4 Way Extension Board
180 Per Piece
expansion joint board
150 Per Piece
Best Deals from Expansion Boards
Extension Board
750 Per Piece
1 Piece (MOQ)
RFID NFC PN532 SHIELD IC CARD EXPANSION BOARD ARDUINO
Get Price Quote
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.
4 Socket Extension Boards
349 Per Piece
Expansion Joint Filler Board
Get Price Quote
Expansion Joint Filler Board, backer rods, Industrial Pipes
Power Extension Board
Get Price Quote
Power Extension Board, Bluetooth Speaker, extension box
expansion board
Get Price Quote
expansion board, Card And Tag, Biometric Time Attendance System
Extension Board
Get Price Quote
Driver IC Sensors, Connectivity Via 2 Serial Ports, CP 5221 Eth Ethernet CPU