- legacy wiki page https://w.electrodragon.com/w/Category: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
demo code
- https://w.electrodragon.com/w/Category:EL125
- or Arduino demo code here: https://github.com/Edragon/Arduino-main/tree/master/Sketchbook/RF/16-RFID/125KHZ/EL-125
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
FAQ
other RFID cards or keys
- no guarantee the same performance, high quality RFID cards or tags are required!
performance
- Any microcontrollers should work, and lithium batteries also work, just add more capacitors to filter the noise in the power supply. The performance only changes a little or not if you do good filtering.
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