Free PDF tutorial(more than 22 lessons) and clear listing in a nice packageThe most economical kit based for Arduino platform to starting programming for those beginners who are interested.Lcd1602 module with pin header (not need to be soldered by yourself)This is the upgraded starter kits with power supply module, 9V battery with dc. High quality kit with for UNO R3.100% compatible with for Arduino UNO R3, MEGA 2560 R3, NANO.Colour:As shownMaterial:ABSPackage Contents:5 x white LEDs5 x yellow LEDs5 x blue LEDs5 x green LEDs5 x red LEDs1 x RGB LED2 x photoresistors1 x thermistor2 x diode rectifiers (1N4007)2 x NPN transistors (PN2222)1 x tilt switch5 x buttons (small)1 x 1-digit 7-segment display1 x 4-digit 7-segment display1 x sound sensor module1 x LCD1602 module (with pin header)1 x IC L293D1 x IC 74HC5951 x active buzzer1 x passive buzzer1 x DHT11 temperature and humidity module1 x potentiometer1 x joystick module1 x membrane switch module1 x 5V relay1 x infrared receiver module1 x for UNO R3 controller board1 x 830-point breadboard1 x Servo Motor(SG90)1 x stepper motor1 x ULN2003 stepper motor driver board1 x prototype extension1 x power module1 x ultrasonic sensor1 x 3V Servo Motor(Wire Bonding)1 x fan blade1 x remote1 x 65 jumper1 x water level sensor1 x USB cable1 x 9V battery with DC10 x resistors (10R)10 x resistors (100R)10 x resistors (220R)10 x resistor (330R)10 x resistors (1K)10 x Resistor (2K)10 x Resistor (5K1)10 x resistors (10K)10 x Resistor (100K)10 x resistor (1M)10 x female to male Dupont wire1 x CDwith TotutialOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.