113990014

125Khz RFID module – UART RDM 125KHz card mini-module is designed for reading code from 125KHz card compatible read-only tags and read/write card . It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc. Note: Module will notify whenever 125khz tag approaches, tag serial number will be send via TX pin. Easy way for a RFID module on MCU projects or PC connnection via UartSB. Features • Support external antenna • Maximum effective distance up to 50mm • Less than 100ms decoding time • UART TTL interface • Support EM4100 compatible read only or read/write tags • Built-in external bi-color LED and buzzer driver • Small outline design Specification May include key specification and other specifications. Key Specification Frequency 125KHz Baud Rate 9600 (TTL Electricity Level RS232 format) interface Weigang26 Or TTL Electricity Level RS232 format Power supply DC 5V（±5%） Current 50mm(Depend on Card/Tag shape, manufacturer) Expand I/O port N/A Indication light N/A Working temperature -10℃~ +70℃ Storage temperature -20℃~ +80℃ Max. humidity Relative humidity 0 ~ 95% Size 38.5mm ×19mm×9mm Pin definition and Rating Look the image below(Mechanic Dimensions), and check the pin definition list here: Pin Definition : P1: PIN1 TX PIN2 RX PIN3 PIN4 GND PIN5 +5V(DC) P2: PIN1 ANT1 PIN2 ANT2 P3: PIN1 LED PIN2 +5V(DC) PIN3 GND Mechanic Dimensions Usage TTL Interface RS232 Data output format 1. 9600bps,N,8,1 2. CHECKSUM: card 10byte DATA entire do XOR operation 02 10ASCII Data Characters Chechsum Example: card number: 62E3086CED • Output data:36H、32H、45H、33H、30H、38H、36H、43H、45H、44H • CHECKSUM: (62H) XOR (E3H) XOR (08H) XOR (6CH) XOR (EDH)=08H 03 Time sequence chart Exampel Output date(HEX): 02 | 30 31 30 30 30 37 33 34 45 30 | 44 32 | 03 ->Change to Decimal CardNumber Decimal: 48 49 48 48 48 55 51 52 69 48 CheckSum Decimal: 68 50 >Refer to ASCII table,get Ascill value CardNumber Ascill: 0 1 0 0 0 7 3 4 E 0 CheckSum Ascill : D 2 (01H) xor (00H) xor (07H) xor (34H) xor (E0H) = D2H Programming Connect RX/TX to Arduino UART port , Uart demo code : void setup() { Serial.begin(9600); } void loop() { if(Serial.available()) { while(Serial.available()) Serial.write(Serial.read()); } } Resources • Datasheet: RDM630-Spec.pdf • How to connect Arduino and RFID http://wiki.seeedstudio.com/125Khz_RFID_module-UART/ 7-18-18