User Manual

VMA211
V. 01 – 09/05/2019 3 ©Velleman nv
5. Overview
This NFC/RFID controller shield is based on the PN532 chip and can be used for field communication close to
13.56 MHz. This shield comes with an on-board antenna. It is compatible with SPI, IIC, UART interface to
communicate and needs to be stacked directly onto the VMA100 UNO control board.
chip ............................................................................................................... NXP PN532
working voltage .......................................................................................................... 3.3 V
power voltage ...................................................................................................... 3.3-5.5 V
max. power current ................................................................................................. 150 mA
working current (standby mode) ............................................................................... 100 mA
working current (write mode) .................................................................................... 120 mA
working current (read mode) .................................................................................... 120 mA
communication distance ............................................................................................ 2.5 cm
communication interfaces .............................................................................. SPI, I2C, UART
compatibility ............................................... ISO14443 type A and B cards / tags at 13.56 MHz
dimensions ............................................................................................... 69 x 54 x 24 mm
weight ........................................................................................................................ 18 g
1
Antenna port
6
I2C communication
2
NFC sensing area
7
Serial communication
3
Power port
8
Antenna selector
4
A0-A5 analogue port
9
D0-D13 digital port
5
Selectable communication