student attendance system using U2270b, tk551, pic 16f877a

building a student attendance system
using U2270b, tk551, pic 16f877a
i have problem in communication between u2270b and pc using pic controller
u2270b is a read write base and communicates both ways
i need to read and write tk5551 through pc
is there any code any one have who have used u2270b, for communication in micro chip ide
it uses Manchester coding
it any one can do it and send it to me
i am even ready to pay for i

Hi
Look about this project based on U2270B which is tested and works well - https://www.edaboard.com/thread24464.html
https://www.edaboard.com/attachments...ransponder.zip

I made it 8 years ago and I can say that it works extremely well - there is code for PIC16F876A and the PCB.

Thanks sir
but its DSN file is not working on protious