Feature: 1. FOR BEGINNERS: The development board kit is designed for beginners in the for R3 learning suite to help students quickly master the basics and maker skills 2. INSPIRE CREATIVITY: The development board basic kit feature for Scratch maker education to make learning more fun and stimulate creativity and imagination 3. ACCURATE SENSING: The development board starter kit is equipped with a wealth of sensors to support a variety of hands on projects, giving students a comprehensive understanding of the world of electronic programming 4. APPLICABLE SCENARIO: Development board beginner kit is widely used and can be applied to places such as schools, graduate students and families 5. STABLE MATERIAL: The software engineer development board kit is made of excellent ABS plastic material with high stability and durability, an ideal educational tool Specification: Item Type: Development Board Starter Kit Material: ABS plastic Remote Control Battery: Battery Type: 1 x 3V CR2025 Button Battery Battery Model: CR2025 Battery Capacity: 140mAh Battery Snap Battery: Battery Type: 1 x 9V 6F22 Type Battery Model: 6F22 Type Battery Capacity: 200mAh. Package List: 1 x For R3 Mainboard 1 x Stepper Motor Driver Board 1 x Breadboard 1 x Four Digit Numeral Tube1 x One Digit Numeral Tube 4 x Buttons 1 x Remote Controller 1 x Temperature Humidity Module 1 x Potentiometer 1 x L293D Chip 1 x Passive Buzzer 1 x Active Buzzer 1 x Fan Blade 1 x Stepper Motor 1 x 9V Battery 1 x Battery Clip 1 x USB Cable 20 x Jump Wires 30 x Breadboard Wires 2 x Yellow Key Caps 2 x Red Key Caps 10 x 10M Resistor 10 x 1M Resistor 10 x 100M Resistor 10 x 330Ω Resistor 10 x 220Ω Resistor10 x 1K Resistance10 x 560Ω Resistance10 x 4.7K Resistance10 x Green LED Light10 x Blue LED Light10 x Red LED Light10 x Yellow LED Light10 x White LED Light1 x RGB Full Color5 x Triode1 x Infrared Receiver2 x Flame Sensor2 x Thermistor2 x Photoresistor2 x Ball Switch1 x Motor1 x Plastic Box