frank26080115:
if(memcmp(master, target_tag, TAG_LEN) == 0 )
Hmm, for some reason it was throwing an error before: cannot compare byte* & byte...it works now, but only for one of my RFID cards. The other one wont validate.
This is my array for all my tags that Ive got saved in the Arduino:
byte target_tag[ARR_LEN][TAG_LEN]={{0x4F, 0x00, 0x88, 0xB3, 0x4F},{*My Other Tag*}}