1、FUNCTIONS AND EFFECTS: The upgrade motherboard kit is used for learning and getting started, helping you quickly learn about development 2、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 project 3、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 project 4、WITH TUTORIALS: The electronic components starter kit contain detailed tutorials to help you get started and begin without a professional background 5、APPLICABLE MODEL: Electronic components repair kit is compatible with for R3 motherboard, with higher compatibility and stability, to meet your various innovative and implementation needs Item Type: Electronic Components Kit Material: Electronic components Remote Control Battery: Button battery(not included) Battery Model: CR2023 1 x Breadboard 5 x Yellow F5 LED 5 x Red F5 LED 5 x Blue F5 LED 1 x Infrared Transmitter 1 x Infrared Receiver 2 x HDX Vibration Switch 3 x Thermistor 1 x Passive Buzzer 1 x 5V Buzzer 1 x 74HC595N 1 x LM35DZ 4 x Tactile Switch(12x12) 1 x Potentiometer 10K 1 x LCD1602 1 x Radio Frequency Identification Module 1 x Water Level Sensor 1 x For R3 Official Board 5 x 1/6W 1K Resistor 5 x 1/6W 10K Resistor 5 x 1/6W 220R Resistor 1 x Mini Remote Control 1 x Dot Matrix Module(8x8) 1 x Keypad Module(4x4) 1 x ULN2003 Module 1 x Temperature Humidity Sensor Module 1 x 1 Digit Digital Tube 1 x 4 Digit Digital Tube 1 x Rocker 5 Pin 1 x 5V 1 Way Power Module 1 x Microphone Module 1 x DS1302 Module 1 x SG90 1 x Stepper Motor 10 x Jump Wire 20cm Male to Female 1 x 9V Battery Cable 1 x Computer Cable 1 x Bread Tray Line 1 x Remote Control with LED Module 1 x Storage Box 3 x Plastic Plate