We have updated this module to version 3. Compared with V2, V3 have the following improvement:
1. Smaller: the size now is as small as 42.7mm*40.4mm*4mm
2. Easy to change mode: with a small SMD toggle Switch, it becomes very easy to change among IIC, SPI and HSU modes
3. Longer distance: the reading distance becomes 5~7cm, compared with 4~6 cm of last version
4. Add software to support NFC with Android Phone
Features
1. Support II2, SPI and HSU (High Speed UART)
2. RFID reader/writer mode support
• Mifare 1k, 4k, Ultralight, and DesFire cards
• ISO/IEC 14443-4 cards such as CD97BX, CD light, DesFire, P5CN072 (SMX)
• Innovision Jewel cards such as IRT5001 card
• FeliCa cards such as RCS_860 and RCS_854
3. Plug and play, Arduino compatible
4. Built in PCB Antenna, with 5cm~7cm communication distance
5. On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI
6. Work as RFID reader/writer
7. Work as 1443-A card or a virtual card
8. Support NFC with Android phone
9. Small size: 43mm*41mm*4mm
• VCC: 3.3V~5V
• I2C/UART: 3.3V~24V TTL
• SPI: 3.3V TTL with 100 ohm resistors in series. It could be connected directly to 5V interface of microcontroller such as Arduino.
The I2C and HSU shares the same pins. The definition of IIC pins is printed at front and the HSU’s is printed at the back. The HSU mode is configured as the default mode. But you could change the interface by setting the toggle switch.
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