Feature: 1. [Comprehensive Learning Kit] This electronic components kit is perfect for beginners, offering a wealth of learning materials and project examples to facilitate easy understanding and hands on experience. 2. [High Performance Development Board] The for R3 development board boasts superior performance and stability, suitable for a wide range of projects. 3. [Radio Frequency Identification Module] The radio frequency identification module included in this kit provides additional security and convenience, enabling applications in access control, identity authentication, and other related functions. 4. [Accurate Position Control] The stepper motor included in the kit allows for accurate position control, making it ideal for projects such as robotic arms, 3D printers, and other applications. 5. [Rich Learning Kit Experience] With a variety of electronic components and projects, this kit offers users a comprehensive learning experience and ample opportunities for project creating. Specification: Item Type: Starter Kit for R3 Material: ABS Plastic Battery Type: 1604D 6F22 9V Layered Battery x 1 (Equipped) Battery Model: 1604D 6F22 Layered Battery Battery Capacity: 300mAh Remote Control Battery Type: 3V CR1220 Button Battery x 1 (Built in) Battery Model: CR1220 Button Battery Battery Capacity: 40mAh. Package List: 1 x Mainboard1 x USB Cable1 x Original Extension Board + Mini Breadboard1 x 5V Stepper Motor1 x Motor Driver Board1 x IC 74HC5952 x Vibration Sensor1 x Flame Sensor1 x Temperature Sensor1 x Infrared Receiver3 x Photoresistor10 x Red LED10 x Green LED10 x Blue LED4 x Push Button Switch2 x Red Button Cap2 x Yellow Button Cap1 x Large Breadboard1 x Ultrasonic Sensor1 x Power Module1 x Active Buzzer1 x Passive Buzzer1 x 1602 LCD Display1 x Remote Control1 x 1 Digital Tube1 x 4 Digit 8 Character Digital Tube1 x 8x8 Dot Matrix1 x Bread Line1 x Female to Female Line1 x Three Color Light Module1 x 10K Adjustable Potentiometer1 x 2.54 Single Row Pin1 x 9V Battery1 x Battery Connection Cable10 x Resistance 1K10 x Resistance 10K10 x Resistance 220Ω 10 x Resistance 330Ω4 x Jumper Cap1 x Component Box1 x Color Ring Card1 x Plastic Box1 x CD1 x Nut1 x Shim