RFID2 Unit (WS1850S) is a 13.56MHz RFID reader/writer module designed for smart access, authentication, and identification systems. Built around the WS1850S chip, it provides stable, non-contact two-way communication using magnetic field induction, supporting card reading, writing, recognition, and encoding.

build Key Features of RFID2 Unit:

• rss_feed Operating frequency: 13.56 MHz (ISO14443A, MIFARE, NTAG support)
• memory WS1850S Read/Write IC with 64-byte transceiver buffer
• sync_alt I2C interface (Fast mode: 400 Kbit/s; High-speed: 3.4 Mbit/s)
• straighten Compact size: 48 × 24 × 8 mm (6g net weight)
• devices Compatible with Arduino & UIFlow (Blockly, Python)
• layers Includes 2 × LEGO-compatible mounting holes

construction Applications:

• 🏠 Smart home access control
• 🚗 Vehicle entry & management systems
• 🚉 Smart transportation solutions
• 📚 Smart bookshelf & library tracking
• 🏢 Check-in & event registration systems

inventory_2 What’s in the Box:

• 📦 1 × RFID2 Unit (WS1850S chip)
• 🔌 1 × HY2.0-4P cable

rule Specifications:

• Read/Write IC: WS1850S
• Operating Frequency: 13.56 MHz
• Communication Protocol: I2C (Addr: 0x28)
• Supported Protocols: ISO/IEC 14443 Type A/B
• Data Storage: > 10 years
• Reading Distance: < 20 mm
• Working Temperature: -20℃ to +85℃
• Net Weight: 6 g | Gross Weight: 21 g
• Product Size: 48 × 24 × 8 mm
• Packing Size: 67 × 53 × 12 mm

⚠️ Legal Disclaimer:
This device is intended for development, prototyping, and authorized RFID applications. Unauthorized use for cloning, tampering, or unlawful access is strictly prohibited.