PDF Tutorial - Detailed PDF tutorial of 28 lessons with sample code and image instructions. ^^ This is the upgraded starter kits come with a 9V 1A Power Adapter to replace a 9V Battery ^^ Perfect Kit for Beginner - The most economical way for beginners to start programming. Compatible with Arduino r3, mega, nano and Sensors, Servo, Motor, power supply module, ULN2003 driver board, lcds, etc. ^^ No Need Solder - LCD1602 module with pin header (no need to be soldered by yourself). ^^ Good quality storage box with divider plates- Avoid to mess up and get a tidy box.