3.3-5V RFID Card Reader Module 125khz Built-in Integrated Antenna PCB RF Module UART Serial Output Wireless Module with Pins

Product selling point:1. This product is a 125KHz RFID swipe decoding module, and integrates the antenna in the PCB.2. The interface adopts 5PIN interface, which are VCC, J1, Tx, J2, GND. At the same time, Schottky diode is added to the power supply for anti-reverse connection protection.3. This module is suitable for most low frequency ID cards.4. The module has 3 output modes: UART output, IO direct output, and triode open-drain output.5. Wide applicationProduct parameters:Product Name: Integrated Antenna RF Card Swipe ModuleSupply voltage: 3.3-5V (5V recommended)Operating current: less than 50mA, the typical value is 35mA.Serial port parameters: baud rate 9600 bit/s, data bit 8 bit, no parity check, 1 bit stop bitInterface function:The module adopts three kinds of interface output1. Pin Tx uses UART to output data, the output data format is 10 ASCII codes + 1 space, and the card number is 10 data (see Figure 1). The baud rate setting is sampled in the manner of Figure 1 to receive data.2. If the product does not need to use the UART to read the specific card number, you can directly read whether the card swipe is successful through the IO port of J2. When the card is swiped successfully, it will be accompanied by UART data output. During the data output period, the J2 port remains high. After the data output is completed or in the idle state, it always outputs a low level.The J1 port and the J2 port have an opposite level, but the port is an open-drain output, and the corresponding level can be output through a pull-up resistor. It can also be connected to 12V load and 24V load. This port is designed to be upgraded for subsequent products, driving relays, etc. The sink current of the port cannot exceed 100mA. (If the customer needs to directly drive the relay, the corresponding program needs to be replaced)List:Integrated antenna RF card swiping module*1+pin header*1