Cytron Technical Forum

Hi,
I'm working on RFID project where I need to determine the checksum value. Below is the example of Hex string value where I believed the last two bytes are the checksum values. How to get the value of 88 byte for item 1 and how to get the checksum value for item 2. I'm really appreciate if anyone could help me. Thank you.

1. 00 03 85 01 FF 88, Checksum = 88
2. 00 09 85 05 AA FF FF FF FF FF FF ??

Could I know what kind of RFID module you used?

I have share RFID read and write here viewtopic.php?f=30&t=11739

Idris WROTE:Could I know what kind of RFID module you used?

I have share RFID read and write here viewtopic.php?f=30&t=11739

I use as the link below;

https://www.sparkfun.com/products/10126
https://www.sparkfun.com/products/10406