Hi DheerajThere are no such | Projects › Projects › RFID based Secured access system using 8051 microcontroller (AT89C51) › Hi DheerajThere are no such September 27, 2016 at 2:09 pm #14172 GANEEV SINGHParticipant Hi Dheeraj There are no such particular specifications required, it all depends on what type of communication you want to deal with. There are modules which offer USART while some come with SPI interface. Good luck
