125KHz RFID Module Kits

It is compatible with ID cards of 64 bit read-only EM4100, TK4100, and EM4102 series. This module outputs original card information (Manchester code) and ascii codes which can be directly displayed on the computer. Code formate: Manufacturers code + ID card number + parity bits. It can be directly connected to Pin 2 of the computer serial port (COM). Antenna and the module has been adjusted to the best condition, with long reader distance. With CBB capacitors, it has anti-interference to temperature change.

Parameters:

• Voltage: 3 - 5V DC
• Current: <50mA
• Output format: Baud rate 9600, Data bits 8, stop bit 1
• Manchester code output:
  ___ 1; ____
  | ___; ___ | 0
• Reading Distance: key card> 5cm, thin card> 9cm, thick card> 11cm, with no blind spots
• Operation temperature: 0 ~ 70 degrees Celsius
• Size: 38mm * 20mm

Pin definition

• VCC: +5 V power supply
• TX: TX output. Baud rate: 9600, Data bits: 8, stop bit: 1
• PC: TX output to computer serial port. Directly connected to Pin2 of the computer COM. Note: already embeded with voltage level conversion circuit.
• L2: antenna
• L1: antenna
• GND: GND
• Mcst: Manchester code output
• Rest: reset pin, low effective.
• D1: card available signal. When a card is detected this pin is high. After 6ms, TX outputs data. Then it becomes low after TX output finished
• D2: vacant
• D3: vacant

Product list:

1. RFID reader module x1
2. Coil antenna x1
3. Thick ID card x1
4. Thin ID card x1
5. Key ID card x1

Sample connection:

While it is connected with PC, super terminal might be used:

Click here to get the reference schematic diagram