Feature: 1. Rich Sensor Modules: This development board kit includes a variety of sensor modules, perfect for electronic learning and programming development. 2. For R3 Board Design: Featuring support for graphical programming, the for R3 board makes it easy for beginners and makers to learn and create. 3. Diverse Sensor Modules Combination: With multiple sensor modules included, this kit caters to various learning and needs, fostering exploration and innovation. 4. Strong Expandability: The kit offers strong expandability for individual projects, allowing users to realize their ideas and unleash creativity. 5. Ideal for Beginners: Designed for both beginners and electronic learning enthusiasts, this kit is a versatile tool for learning and experimentation. Specification: Item Type: for R3 Development Board Kit Material: ABS Plastic Battery Buckle Battery: Battery Type: 9V 6F22 x1 Battery Model: 6F22(without) Remote Control Battery: Battery Type: 3V CR1220 Button Battery x 1 Battery Model: CR1220 Button Battery Battery Capacity: 40mAh (With built in battery) . Package List: 1 x for R3 Main Board 1 x Header Pins 1 x USB Cable 1 x 74HC595 Chip 1 x 1602 LCD Display 1 x 8 x 8 Dot 1 x 4 Digit Digital Tube 1 x 1 Digit Digital Tube 5 x Red LEDs 5 x Green LEDs 5 x Yellow LEDs 1 x Stepper Motor 1 x Stepper Motor Driver Board 1 x Passive Buzzer 1 x Active Buzzer 1 x Servo Motor 3 x Servo Plastic Arms 3 x Servo Screws 2 x Tilt Sensors SW 520D 3 x Photoresistors 1 x LM35 Temperature Sensor 10 x Female to Female Jumper Wires 1 x Ultrasonic Module 1 x Obstacle Avoidance Sensor 1 x Remote Control 1 x Infrared Receiver 1 x Potentiometer 10 x 1k Resistors 10 x 10k Resistors 10 x 220R Resistors 1 x Battery Holder 1 x Blue Button Hat 1 x White Button Hat 1 x Black Button Hat 1 x Red Button Hat 1 x Green Button Hat 5 x Buttons 1 x Breadboard 65 x Breadboard Wires 1 x Nut 1 x Plastic Storage Case