Arduino Compatible UNO R3 Starter Kit Set UNO R3 Development Board Kit list: 1 xUNO R3 1 x prototype develop expansion board 1 x Mini breadboard 1 x Senior breadboard 1 x Transparent plexiglass plate(10 x 20cm) 1 x Large component box + SMD components 1 x 1602 LCD module 1 x Adjustable resistance 1 x Flame sensor 1 x Infrared receiver 1 x LM35 temperature sensor 1 x USB cable 1 x 9V battery box 1 x Mini remote Control 2 x Buzzer 2 x Digital tube 2 x Mercury switch or ball switch 3 x Photoresistor 4 x Button switch 15 x LED lights red yellow green(each 5pcs) 15 x Resistor 220, 1K, 10K(each 5pcs) 20 x Colorful breadboard wires Package included: 1 x Starter kit set for Arduino