There are many accessories to choose, no need to worry about the damage of accessories Using the latest materials to bring you a comfortable experience Contains accessories required for programming, so that you can learn more and experience more while learning Type: Emulator packing list:5 white ,5 yellow ,5 blue ,5 green ,5 red ,1 RGB LED,Five 22pf ceramic capacitors,5 pieces of 104 ceramic capacitors,2 photoresistors,1 thermistor,5 diode rectifiers (1N4007),2 electrolytic capacitors (10UF 50V),2 electrolytic capacitors (100UF 50V),5 NPN transistors (PN2222),5 NPN transistors (S8050),1 tilt switch,5 buttons (small),1 1-digit 7-segment display,1 4-digit 7-segment display,1 sound sensor module,1 LCD1602 module (with pin header),1 IC L293D,1 IC 74HC595,1 active buzzer,1 passive buzzer,1 module,1 temperature and humidity module,2 potentiometers,1 rotary encoder module,1 joystick module,1 keyboard module,1 x 5V relay,1 infrared receiving module,1 for R3 controller board,1 breadboard,1 servo motor (SG90),1 stepper motor,1 ULN2003 stepper motor driver board,1 Prototype Expansion,1 power module,1 -SR501 PIR motion sensor,1 ultrasonic sensor,1 -521 module,1 x 3V servo motor,1 module,1 remote control,1 9V 1A power supply,1 65 jumper wire,1 water level sensor,1 USB cable,1 x 9V DC battery,1 RC522 RFID module,10 resistors (10R),10 resistors (100R),30 resistors (220R),10 resistors (330R),10 resistors (1K),10 resistors (2K),10 resistors (5K1),10 resistors (10K),10 resistors (100K),10 resistors (1M),20 female to male wires,1 resistance identification card,1 CD with total Colour:As Shown Material:plastic Package Contents: 1 x for R3 Kit (242pcs) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.