Feature:1. FUNCTIONS AND EFFECTS: The upgrade motherboard kit is used for learning and getting started, helping you quickly learn about development2. SECURITY VERIFICATION: The electronic components kit contain RFID modules, which can realize wireless communication and identity authentication functions to improve the security and practicality of the project3. ACCURATE CONTROL: The basic electronic components kit is equipped with stepper motor and steering gear, which can achieve accurate motion control and enhance the mechanical function and interactivity of the project4. WITH TUTORIALS: The electronic components starter kit contain detailed tutorials to help you get started and begin without a professional background5. APPLICABLE MODEL: Electronic components repair kit is compatible with for R3 motherboard, with higher compatibility and stability, to meet your various innovative and implementation needsSpecification:Item Type: Electronic Components KitMaterial: Electronic componentsRemote Control Battery: Button battery(not included)Battery Model: CR2023.Package List:1 x Breadboard5 x Yellow F5 LED5 x Red F5 LED5 x Blue F5 LED1 x Infrared Transmitter1 x Infrared Receiver2 x HDX Vibration Switch3 x Thermistor1 x Passive Buzzer1 x 5V Buzzer1 x 74HC595N1 x LM35DZ4 x Tactile Switch(12x12)1 x Potentiometer 10K1 x LCD16021 x Radio Frequency Identification Module1 x Water Level Sensor1 x For R3 Official Board5 x 1/6W 1K Resistor5 x 1/6W 10K Resistor5 x 1/6W 220R Resistor1 x Mini Remote Control1 x Dot Matrix Module(8x8)1 x Keypad Module(4x4)1 x ULN2003 Module1 x Temperature Humidity Sensor Module1 x 1 Digit Digital Tube1 x 4 Digit Digital Tube1 x Rocker 5 Pin1 x 5V 1 Way Power Module1 x Microphone Module1 x DS1302 Module1 x SG901 x Stepper Motor10 x Jump Wire 20cm Male to Female1 x 9V Battery Cable1 x Computer Cable1 x Bread Tray Line1 x Remote Control with LED Module1 x Storage Box3 x Plastic Plate