Sintron] MEGA 2560 RFID Master Kit + Time Clock Joystick Motor Servo LCD 5V Relay Module for Arduino AVR Learner (1) It includes 1 RFID-RC522 Module (RFID reader) + 1 RFID Proximity ID Round Tag + 1 RFID Proximity ID Card Tag, With the later version Mega 2560 included. This is with main Chip ATmega2560, with more I/O Pins, and additional 10 PWM output. (2) With this kit , you can use it to communicate with arduino board . we will provide the connection diagram and the sample code for you to use with this kit, so the process would become very easier for you to get familiar with this kit. (3) So you can start your RFID project as soon as you get this kit , such as use the RFID to open the door etc...and we hope you can also be very creative to use this kit for many awesome ideas ! (4) Unlike other sellers , we are professional and provide all the tools necessary . other seller might just sell you the hardware, then leave you alone, so you have to spend a lot of time to figure out how to get it to work. (5) After you purchase , just send an email to us with title "require Arduino pdf files for starters " , then we will show you how to access these PDF documents . so you can save a lot of time searching for these!