User's Guide

www.elechouse.com
We have updated this module to version 4.
Compared with V3 have the following improvement:
Performance
PN532 NFC V3
PN532 NFC V4
Description
Reading Distance on PVC Mifare tag
5~6cm
6~8cm
Improved performance on IOS14443A tags
Reading Distance on PVC SRT512
1~2cm
2~4cm
Improved performance on IOS14443B tags
Feature
1. Compatibility: it is compatible with V3 both in hardware and software.
2. Smaller: the size now is as small as 42.7mm*40.4mm*4mm
3. Easy to change mode: with a small SMD toggle Switch, it becomes very easy to change among IIC, SPI and HSU modes
4. Longer distance: the reading distance becomes 6~8cm