Car Sharing On-board Unit

Key Features

• Based on ST25R3911B high performance HF reader / NFC initiator with 1.4 W output power, supporting VHBR and AAT
  • ISO 18092 (NFCIP-1) active P2P
  • ISO14443A, ISO14443B and FeliCa™
  • ISO15693
  • Supports VHBR (3.4 Mbit/s PICC to PCD framing, 6.8 Mbit/s AFE and PCD to PICC framing)
  • Up to 1.4 W output power with differential antenna
  • Possibility of driving two antennas in single ended mode
  • Inductive and capacitive Wake-up
  • Automatic antenna tuning system
  • DPO (Dynamic Power Output)
  • User selectable and automatic gain control
  • Transparent and Stream modes to implement MIFARE™ Classic compliant or other custom protocols
  • 6 Mbit/s SPI
  • Wide supply voltage range (from 2.4 V to 5.5 V)
  • QFN32, 5 mm x 5 mm package
• STM32L476RET6 32-bit microcontroller with 512 kB of Flash memory
• 105 mm x 52 mm, two turns antenna etched on the PCB, and associated VHBR tuning circuit
• Micro-USB connector for communication with the host PC and board powering
• Six LEDs indicating the presence of the RF field and of the protocol used to communicate

Show More

Key Features

• On-board NFC card reader IC: ST25R3911B
• 47 mm x 34 mm, four turns, 13.56 MHz inductive antenna etched on PCB and associated tuning circuit
• Six general purpose LEDs
• ISO 18092 (NFCIP-1) active P2P
• ISO 14443A and ISO14443B
• ISO 15693
• FeliCa™
• VHBR
  • 6.8 Mbit/s AFE and PCD to PICC framing
  • 3.4 Mbit/s PICC to PCD framing
• Up to 1.4 W output power with differential antenna
• Possibility of driving two antennas in single ended configuration
• Inductive and capacitive wake-up
• Automatic antenna tuning system
• Transparent and Stream modes to implement MIFARE™ Classic compliant or other custom protocols
• Equipped with Arduino™ UNO R3 connector
• Free comprehensive development firmware library compatible with STM32Cube and samples for ST25R3911B
• Scalable solution for multiple board cascade
• FCC certified
• RoHS compliant

Show More