RFID is a popular system for door access, attendance record, security and even tracking system. There are many type of RFID tag and reader, and there are tons of standard to define RFID, but generally, you will most likely use
CT- UNO with plastic "legs" CIKU with plastic "legs" You will get supporting plastic "leg" on CIKU and CT-UNO if your order is being shipped out 20th Dec 2014 onward. We have added 4 snap and fit supporting plastic spacers.
There are several return of CIKU board from customers, claiming the bootloader is corrupted. We have spotted a reason where user want to create their own project instead of using provided CIKU project. Unfortunately, they have overwrite CIKU bootloader inside