Feature:1. COMPLETE ACCESSORIES: Development board starter kit include a complete for R3 starter kit to meet the learning needs of both beginners and professionals2. 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 engineers3. STABLE AND RELIABLE: The development board kit has reliable quality and high stability, which is suitable for various projects and application scenarios4. MULTIPLE MODULES: The development board beginner kit include a wide range of sensors and modules that will allow users to experiment and be innovative5. FUNCTIONS AND USES: Complete accessories programming development board kit, so that users can easily build a variety of electronic prototypes, display people project resultsSpecification:Item Type: Development Board Starter KitMaterial: ABS plasticRemote Controller Battery:Battery Type: 1 x 3V CR1220 button batteryBattery Capacity: 40mAhBattery Buckle Battery(not included):Battery Type: 1 x 9V 6F22 type.Package List:1 x for R3 Mainboard1 x CD1 x Main Board Expansion Board1 x Small Breadboard1 x Temperature and Humidity Module1 x Motor1 x Water Level Detection Module1 x Ultrasonic Sensor Module1 x Servo Motor1 x Servo Plastic Barrier3 x Servo Screw1 x Stepper Motor1 x Stepper Motor Driver Board1 x 1602 LCD Display Screen1 x Sound Sensor Module1 x Fan Blade1 x Power Module10 x 220 Resistor10 x 330 Resistor10 x 2K Resistor10 x 5.1K Resistor10 x 1M Resistor10 x 100 Resistor10 x 1K Resistor10 x 10K Resistance10 x 100K Resistance10 x 10 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