NID1020 DAT - EL125

  • accessoires please read at page 125khz-dat

  • product link - https://www.electrodragon.com/product/125khz-rfid-long-distance-module-40cm-serial/
  • card and accessories link - https://www.electrodragon.com/?s=125khz&post_type=product

pin definitions

pin name note
1 antenna 1 MUST CONNECT
2 antenna 2 MUST CONNECT
3 high-level election serial port, low-level selection of Wigan, THIS MUST SELECT
4 buzzer output, no card low, a card output 2.7k square wave  
5 Serial TX output or Wigan 26 data D1 data out
6 Wigan 26 data D0  
7 reset terminal, active low to repeat reading  
8 ground MUST CONNECT
9 power supply MUST CONNECT
  • pin 1/2 antenna
  • pin 3 data type output selection, normally put to VCC
  • pin 5 tx output data
  • pin 8/9 power supply

read info

  • baudrate 9600
  • EL125 tag read: 02 30 44 30 30 36 36 37 38 38 36 95 03
  • EM4100 tag read: 02 32 37 30 30 39 44 41 36 43 45 D2 03
  • test2: 02 30 39 30 30 37 43 42 32 43 30 07 03

Arduino

  • Use software serial pin 6/7, connect RFID TX data pin to Arduino RX pin 6 or 7

  • Module output selection pin should set to High for serial output

  • To avoid interferences, use different power supply for RFID and arduino, but connect share common ground GND

checklist

  • make sure there are not other metal materials too close to them, in case to avoid the interferences, which means you may need to clean up your table.
  • Power supply 5V / GND, use a pure AA *2 battery in case (100% reliable)
  • hook pin 3 to 5V, and try to read serial data out from pin 5 TX

demo code

  • https://w.electrodragon.com/w/Category:EL125
  • or Arduino demo code here: https://github.com/Edragon/arduino-main2/tree/main/0-BSP/NID/NID1020-EL-125

demo video

  • https://www.youtube.com/watch?v=9gzx0SZKJYE
  • Test result is 20cm thin card, and 14cm key tag.: https://twitter.com/electro_phoenix/status/1001781336393175041

Ref

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