Features 1、Equipped with corresponding external components and sensors for programming experiments 2、The analog input voltage is changed by the potentiometer component, so that the development board can read 3、The brightness of the LED light is controlled after the development board is read, very practical 4、Basic starter kit suitable for beginners to learn programming, can assist in learning all the resources of the for R3 development board 5、This components kit come with stable structure, excellent performance and long service life Specification Item Type: Components kit Voltage: 5V Current: 1A Model: 830 Tie-in breadboard Package List 1 x 830 Connection Point Breadboard 1 x Module 1 x Accurate Potentiometer 1 x IC 4N35 1 x IC 74HC595 1 x Active Buzzer 1 x Passive Buzzer 10 x Button 1 x RGB LED 10 x White LED 10 x Yellow LED 10 x Blue LED 10 x Green LED 10 x Red LED 1 x 65 Jumper 140 x Solderless Jumpers 1 x Color Card 20 x Jump Wire Male-to-Male 2 x Pin Headers (40pins) 2 x Photoresistors 1 x Thermistor 5 x Electrolytic Capacitor (10μF 25V) 5 x Electrolytic Capacitor (47μF 16V) 5 x Diode Rectifiers (1N4007) 5 x NPN Transistors (PN2222) 10 x Resistance (10R) 10 x Resistance (100R) 10 x Resistance (220R) 10 x Resistor (330R) 10 x Resistance (1K) 10 x Resistance (2K) 10 x Resistor (5.1K) 10 x Resistance (10K) 10 x Resistance (100K) 10 x Resistance (1M)