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View All / IoT & Wireless / RFID & NFC
M5Stack RFID Reader/Writer Module WS1850S 13.56MHz I2C U031-B

M5Stack RFID Reader/Writer Module WS1850S 13.56MHz I2C U031-B

13.56MHz contactless RFID read/write unit for access control, attendance, vehicle and warehouse management
WS1850S | I2C 0x28 | ISO14443A, MIFARE, NTAG | read range under 20mm | -20 to 85 C | 48x24x8mm
Only the IC changed from RC522 to WS1850S; same functions; Arduino and UIFlow

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NT$300
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Description
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Description

Description

Unit RFID2 is a radio frequency identification (RFID) read/write unit based on the 13.56MHz frequency band. It integrates the WS1850S chip and complies with the ISO/IEC 14443 Type A/B standard, supporting data read/write operations for RFID cards such as MIFARE and NTAG series. The unit communicates via the I2C interface, has a read/write distance of less than 20mm, and features a LEGO-compatible mounting hole design, making it easy to integrate into creative structures or secure with screws. It is suitable for access control systems, identity authentication, data logging, and other application scenarios that require information verification.


Features

  • Core Chip: WS1850S
  • Operating Frequency: 13.56 MHz
  • Supported Standards: ISO/IEC 14443 Type A/B
  • Communication Interface: I2C
  • Read/Write Distance: < 20mm
  • 2 x LEGO-Compatible Mounting Holes
  • Development Platform
    • UiFlow1
    • UiFlow2
    • Arduino IDE


Includes

  • 1 x Unit RFID2
  • 1 x HY2.0-4P Grove Cable (20cm)

Applications

  • Smart home access control system
  • Vehicle management
  • Intelligent transportation
  • Smart bookshelf

Specifications

Specification Parameter
Read/Write IC WS1850S
Operating Freq 13.56MHz
Communication Interface I2C @0x28
Supported Prot ISO/IEC 14443 Type A/Type B
Product Size 48.0 x 24.0 x 8.0mm
Product Weight 6.0g
Package Size 138.0 x 93.0 x 16.0mm
Gross Weight 11.3g



Learn and Documents

→ DOCUMENTS


Shipping & Payment

Delivery Options

  • Overseas (Post)
  • Postal delivery
  • 7-11 Pickup and pay in store (C2C)
  • 7-11 Pickup only (C2C)
  • Tcat - Room Temp.
  • Tcat - Room Temp. (Collect on Delivery)
  • Draft quotation

Payment Options

  • Sales Coordinator Contact
  • Apple Pay
  • 「SHOPLINE Payments ATM 虛擬帳號收款服務 6/1 由藍新金流承接，即日起不再支援此付款方式」Bank Transfer
  • Credit Card
  • Tcat (Collect on Delivery)
  • Pay on 7-11 Store Pickup (C2C)

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