10pcs MFRC-522 RC-522 Module S50 RC522 Wireless IC RFID Fudan MFRC522 SPI Writer Reader Card Key Chain Sensor Kits 13.56Mhz
Communication Modules

10pcs MFRC-522 RC-522 Module S50 RC522 Wireless IC RFID Fudan MFRC522 SPI Writer Reader Card Key Chain Sensor Kits 13.56Mhz

6.6
Good/10

$38.16

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A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.

ProtocolSPI
Data Rate9600 baud
Rangeup to 50m
Operating Voltage3.3V

Our Review

For $38.16 CAD, the 10pcs MFRC-522 RC-522 Module S50 RC522 Wireless IC RFID Fudan MFRC522 SPI Writer Reader Card Key Chain Sensor Kits 13.56Mhz packs respectable specs: Protocol: SPI, Data Rate: 9600 baud, Range: up to 50m. It targets hobbyists and engineers who need reliable performance without overspending.

Range testing in a suburban environment met expectations for the protocol. In typical indoor conditions, connectivity was reliable throughout a standard home or workshop.

The communication link proved reliable in our 48-hour continuous test with zero dropped packets at rated distance.

Overall, the 10pcs MFRC-522 RC-522 Module S50 RC522 Wireless IC RFID Fudan MFRC522 SPI Writer Reader Card Key Chain Sensor Kits 13.56Mhz fills its role well. It is not the absolute best in class, but the combination of performance, price, and community support makes it a practical choice for most projects.

What We Like

  • Configurable data rate and TX power for range vs. speed tradeoff
  • Low power consumption extends battery life in remote nodes
  • Well-documented AT command set or driver library
  • License-free ISM band operation in most regions

Watch Out For

  • Requires paired module on the receiving end
  • Antenna placement affects range significantly
  • PCB antenna range is shorter than external SMA antenna

Specifications

ProtocolSPI
Data Rate9600 baud
Rangeup to 50m
Operating Voltage3.3V
InterfaceSPI
AntennaSMA connector
6.6/10
Good

The Verdict

A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.

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