ID Card Decoding Module RFID Card Reader Access Control Card Swipe 125K Radio Frequency Single-Chip Microcomputer Serial Port DIY Modification
ID Card Decoding Module RFID Card Reader Access Control Card Swipe 125K Radio Frequency Single-Chip Microcomputer Serial Port DIY Modification
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RFID decoding module
DIY modification of 125K RF single-chip microcomputer serial port for RFID card reader access control card swiping
Product introduction
This product is an ID card decoding module. After sensing an ID card, it actively decodes and outputs a 10-digit card number. It also has an output port that can output high and low levels, which can meet the general operations of reading, deleting and registering ID cards!
Product parameter
Product dimensions :5x2.9x0.5cm
Supply voltage: DC 5V
Working current :26ma
Current after sensing the card :20ma
Sensing distance: The measured distance for large cards is 1-2.3cm. The typical value is greater than 1.5cm. If a longer distance
of 3-6cm is required, it can be customized.
Output terminal voltage: approximately 4.3V (when powered by 5V)
Supported types: Supports reading ID card numbers, ID access control card numbers, and VIP keychain ID card numbers
Baud rate: Supports four selectable baud rates, namely 4800, 9600, 57,600, and 115,200 BPS
Storage card numbers: A total of 0 to 34 card numbers can be stored, including 35 ID cards
Interface :1 TTL serial port, 1 output port
Supported 1D card chip model :125K TK4100
Operating temperature :-20℃ to 70℃
Working principle: After this module senses the ID card, it actively decodes and outputs a 10-digit card number.
Interface definition
RXD | Receiving port for TTL serial port |
TXD | The transmitting port of the TTL serial port |
VCC | Positive terminal of 5v power supply |
GND | Negative terminal of 5V power supply |
OUT | Output port. When the card has been recorded, it outputs a high level when approaching the sensor and returns to a low level when leaving. |
Product dimension
Note: Manual measurement may have errors. Please refer to the actual product
Products photography




