Hello Sir,
I had purchased RFID Reader/Write Module (UART interface) HY502 series reader from you. Now I am checking it. I want to detect serial number of tag. But module is not giving any kind of response. Please help me in this. I am waiting for you reply.
Thank You.
Suhas Kalse, Aurangabad, Maharashtra
M.Tech (@ NIELIT)

Hi Suhas,

You first need to know the protocol to communicate with the HY502 module.You need to know the commands..
am attaching a datasheet along with this post, you can go through it.

First you can check the protocol by sending commands through a terminal which supports to communicate in hex mode
like 'Realterm' you can freely download it.

You should have a suitable RS232 to TTL converter inorder to interface it with PC.
make connections from reader to rs232 converter as per the J1 connector list mentioned in datasheet.
connect RX,TX,VCC,GND properly leave other pins .
send below mentioned command when card present at baud rate 19200(The red led glows and remains stable till card is present)
0x02 0x20 0x22
reply- AA BB 06 20 42 F9 BF 3D 1F (ID is in between 20 and 1F)

reply-AA BB 02 DF DD(if no card is present)

See the datasheet for more details......



Regards
Pegasus

HI SIR ,
i'm also testing for reading rf id tags (low frequency) with rfid this read/module ,and connected module on hyper terminal as u have mentioned in this post. but its not responding.......
after sending the command not showing red light (for scanning rf id cards).
plz help....

swapnil deshmukh
nagpur

Hi,

This module is High frequency (13.56 MHz) RFID reader. You can't use Low frequency tags with this module. This module supports Mifare One S50, S70, Ultra Light & Mifare Pro, FM11RF08 and other compatible cards.

You can go for RFID Tag - Laundry MIFARE 1K-13.56 MHz (Part No: RFID-1616) which is compatible withe the HY502 module.

Best Regards

SIR i got rf id card with hf but still after sending the command (0x02 0x20 0x22)module is not showing red light (for scanning rf id cards).

Hi,

First of all show your card. Then the RED led will blink. Check whether LED blinks or not.

That means that module have read the TAG ID. At that time you have to send the command to get the TAG ID from the module. Follow the instructions in the previous posts.

Instead of hyperterminal make use of Realterm. Becoz the commands should be given in hex format. Hyperterminal supports only in ASCII format.

Best Regards
Arjun

sir when i take card near to card reader, its not showing any response. not glowing led.
a red led glows only once when we start the module(5v on vcc)......
plz rpl....

Hi,

Please give me the details of the tag which you are using.

Regards
Arjun.P