Feature: 1. COMPLETE ACCESSORIES: Development board starter kit include a complete for R3 starter kit to meet the learning needs of both beginners and professionals 2. EASY TO OPERATE: The development board complete starter kit is simple to operate and help users quickly master programming skills for R3, suitable for software engineers 3. STABLE AND RELIABLE: The development board kit has reliable quality and high stability, which is suitable for various projects and application scenarios 4. MULTIPLE MODULES: The development board beginner kit include a wide range of sensors and modules that will allow users to experiment and be innovative 5. FUNCTIONS AND USES: Complete accessories programming development board kit, so that users can easily build a variety of electronic prototypes, display people project results Specification: Item Type: Development Board Starter Kit Material: ABS plastic Remote Controller Battery: Battery Type: 1 x 3V CR1220 button battery Battery Capacity: 40mAh Battery Buckle Battery(not included): Battery Type: 1 x 9V 6F22 type. Package List: 1 x for R3 Mainboard 1 x CD 1 x Main Board Expansion Board 1 x Small Breadboard 1 x Temperature and Humidity Module 1 x Motor 1 x Water Level Detection Module 1 x Ultrasonic Sensor Module 1 x Servo Motor 1 x Servo Plastic Barrier 3 x Servo Screw 1 x Stepper Motor 1 x Stepper Motor Driver Board 1 x 1602 LCD Display Screen 1 x Sound Sensor Module 1 x Fan Blade 1 x Power Module 10 x 220Ω Resistor 10 x 330Ω Resistor 10 x 2K Resistor 10 x 5.1K Resistor 10 x 1M Resistor 10 x 100Ω Resistor 10 x 1K Resistor 10 x 10K Resistance10 x 100K Resistance10 x 10Ω Resistance10 x Male To Female Jump Wire1 x Film Key1 x Battery Buckle1 x Infrared Receiving Module1 x Rocking Bar1 x USB Cable1 x Breadboard1 x Remote Control65 x Bread Line1 x 1 Digit Digital Tube1 x 4 Digit Digital Tube1 x Relay1 x Potentiometer1 x Gasket1 x Nut1 x Passive Buzzer1 x Active Buzzer1 x Tilt Switch5 x Key2 x Triode2 x Diode1 x Thermistor2 x Photoresistor1 x RGB LED5 x Red LED5 x Yellow LED5 x Green LED5 x Blue LED5 x White LED1 x SN74HC595N1 x L293D1 x Plastic Box