Hi
thanks for you reply,
1)The sfg module is working with pc.i.e, when i connect it to pc i am able to add,search,all operations are working.
But when i interface it with 8051(p89v51rd2) the commands i send dont work.
2)I am interfacing bio-metric with 8051 and sending the ID i receive from sensor to a receiver module
and using that id i am giving the attendance…