125KHZ UART/TTL 5V Reading 30CM RFID Long-Distance Card Reader Module EM Antenna Remote Card Reader Is Used in Pet Parking Lot

The long-distance 125khz module is equipped with brand-new technology, featuring an advanced RF receiving circuit design and an industrial-grade embedded microcontroller, ensuring stable and reliable operation. The module is equipped with triple protection against system freeze, surge and wrong connection. It offers flexible interface selection and can be connected to various MCUS via UART or TTL. The baud rate supports adjustment from 9600 to 115200. From connection to usage, there is no threshold throughout the process. The medium-range EM module makes radio frequency identification applications more convenient and adaptable to various usage scenarios.

matters need attention

The reading distance is related to the card used. Different cards have different distances. With the EM4200 card, it can reach 30 centimeters. Additionally, the product is initially set to a continuous card reading state by default. If you need a card anti-duplicate reading state, please contact us for configuration. You can configure the label to read once through instructions to prevent duplicate reading. The baud rate of this module is a factory fixed value and cannot be modified through the serial port or jumper. If you have any special requirements for the product's functions, it is recommended that you consult in detail before purchasing.

RFID card swiping module

The TTL interface /UART interface embedded identification module supports EM4100 and TK4100 cards, which are widely used in access control systems, industrial security, industrial automation scenarios, and animal identification, etc

Product Parameter

Name: 125KHZ-TTL long-range module
Working temperature: -30°Cto 85°C
Working humidity:40%~90%
Power requirements:3.3v-5v100ma or more
Card reading speed: <0.2 seconds
Card reading distance:0-30cm
Card reading frequency:125khz
Output interface: ttl / uart
Card reader type: id card, em4100 card, em4200, tk4100 card
Scope of application: suitable for a wide range of rfid applications, including
access control, time and attendance tracking, toll collection, anti-theft systems,
patrol management, building intercoms, parking management systems, highway
toll collection, integrated card systems, e-commerce, and more.

Instructions for installation

Installation Notes
Since metal will absorb rf signals, the rf module should not be installed
on a metal surface as much as possible, or the back of the rf module
should be dug out against the metal part. Whether it is the metal in front
of and behind the rf module or nearby, it will absorb its rf signal,
resulting in a attenuation of the card reading distance. If the metal
contact surface is large, it will even affect the card reader to read the
card.
Having two rf modules too close together can impact identification.in
some cases, this can shorten the card reading distance, while in others, it
can lengthen it. it can even cause both modules to read the card
simultaneously or fail to recognize the card altogether. The distance
between two rf modules is recommended to be kept at least 25cm.

Trouble removal

ls the card reading in a critical state?.
·whether the wiring is properly connected and whether it is
connected to the ground
.whether there are other rf card tags within the card reading range
·whether the communication cable between the rf module and the computer is too long
·whether it is an id card or digital tag supported by the reader, and whether the radio frequency card is damaged.
ls the baud rate consistent during transmission? the default
is 9600 bps, with 8 data bits, no parity, and 1 stop bit