Hi Ligo George,
Thank you so much for your valuable feedback.
As my project time is running out, i would like to check if i can just program where if i bring the RFID Key Fob near, the EM-18 sends signal 1 to the 18F4550 microcontroller and from there i can make it enable something. Is this possible? (means i do not need to worry if the RFID is legitimate or not)
Once again thank you!