Features: 1[STARTER PROJECT KIT] The best tool kit for beginners to start programming projects, compatible with platforms such as for mega. 2[WITH PIN HEADERS] The LCD1602 module is equipped with pin headers, no need to solder by yourself, easy to operate. 3[MULTIPLE MODULES] Comes with power supply module, infrared receiver module, breadboard expansion module and DC 9V battery, etc., complete accessories. 4[WITH STORAGE BOX] These electronic components are stored in storage box with partitions to avoid clutter and missing parts. 5[VARIOUS SPECIFICATIONS] Including 5 kinds different colors of LEDs and 10 kinds different resistance values of resistors, sufficient in number, easy to replace. Package included: 1 x 74HC595 Chip 1 x Thermistor 1 x Remote Control (With CR2025 Battery) 1 x USB Cable 1 x 1 Digit Digital Tube 2 x PN222 2 x Potentiometer 2 x Diode 2 x Buzzer 2 x Photoresistor 1 x 3PIN Cable 1 x 4 Digit Digital Tube 5 x Button Switch 1 x 9V Battery 1 x 10PIN Cable 1 x 64PIN Cable 1 x DHT-11 Temperature and Humidity Sensor Module 1 x LCD1602 Module 1 x RGB Light 1 x Stepper Motor 1 x Stepper Drive Module 1 x Control Rod Module 1 x Ultrasonic Ranging Module 1 x Battery Link Cable 1 x Capacitor 1 x Power Module 1 x Servo Kit (1 Servo 3 Screws 3 Fan Blades) 1 x Infrared Receiver Module 1 x Control Panel 2 x Nut (Possibly on the Potentiometer) 2 x Gasket (Possibly on the Potentiometer) 1 x Breadboard 1 x Breadboard Expansion Module (with a Small Breadboard) 1 x Water Level Sensor Module 25 x LEDs (5 Colors for Each 5pcs) 100 x Resistors (10 Kinds for Each 10pcs) 1 x Storage Box