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Grove - 125KHz RFID Reader

Product Code:MMP-0993

Ex.Tax £17.49

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Grove - 125KHz RFID Reader
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Grove - 125KHz RFID Reader output
Seeed 113020002 Grove - 125KHz RFID Reader UART or Wiegand Outputs The Grove 125KHz RFID Reader by Seeed gives two outputs. I am using this unit to create a RFID switch by using a relay to on/off a motor contactor. When I present the tag i get a 1 second pulse of approx 0.2v, measured across the output wires white and yellow. Can this be used to operate a relay which needs to keep motor running till power is removed. Then when power restored it will switch on so long as the tag is in range. Can i have some help on this please
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The Grove-125KHz RFID Reader is a module used to read uem4100 RFID card information with two output formats: Uart and Wiegand. It has a sensitivity with maximum 7cm sensing distance.


  • Selectable output format: Uart or Wiegand.
  • 4Pins Electronic Brick Interface
  • High Sensitivity

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.


please visit SEEED support pages wiki page for more info about this product. It will be appreciated if  you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.

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