1、Wide Utility: Has wide compatibility with for RPI, practical and stable. 2、Easy Control: Standard interface can be directly controlled by micro controller, supports 8051, AVR, PIC, etc. 3、Simple Using: The upgrade tutorial inside the CD is only for R3, very simple to use. 4、37Pcs in All: Including 37pcs different sensor module in all, such as flash module, 18B20 temp module and so on. 5、100Pcs Resistor: There are also 10 values of resistors, and each has 10pcs, meeting your various working needs. Item Type: Sensor Module Material: PCB Clock Module Battery: CR2025 (Without) Specification: 1 x Flash Module 1 x 18B20 Temp Module 1 x Avoidance Module 1 x Big Sound Module 1 x Flame Module 1 x LCD 1602 Module 1 x Linear Hall Module 1 x Photo Interrupter Module 1 x RGB LED Module 1 x Small Sound Module 1 x SMD RGB Module 1 x Tracking Module 1 x Two Color Module 1 x Button Module 1 x Button Switch Module 1 x Joystick Module 1 x Ultrasonic Sensor Module 1 x Reed Switch Module 1 x Power Supply Module 1 x TAP Module 1 x Photo Resistor Module 1 x IR Emission Module 1 x IR Receiver Module 1 x Laser Emission Module 1 x Relay Module 1 x Metal Touch Module 1 x Tilt Switch Module 1 x Human Body Infrared Sensor Module 1 x Clock Module (Without Battery, CR2025 3.0V Battery) 1 x Digital Temperature Module 1 x Water Level Sensor Module 1 x Gyroscope 6DOF Module 1 x Temperature and Humidity Sensor Module 1 x Rotary Encoder Module 1 x Buzzer Module 1 x Vibration Module 1 x Teaching CD 10 Types of Resistor (10 for Each): 10Ω, 100Ω, 220Ω, 330Ω, 1KΩ, 2kΩ, 5.1KΩ, 10KΩ, 100kΩ, 1MΩ. 1 x Teaching CD 1 x Flash Module 1 x 18B20 Temp Module 1 x Avoidance Module 1 x Big Sound Module 1 x Flame Module 1 x LCD 1602 Module 1 x Linear Hall Module 1 x Photo Interrupter Module 1 x RGB LED Module 1 x Small Sound Module 1 x SMD RGB Module 1 x Tracking Module 1 x Two Color Module 1 x Button Module 1 x Button Switch Module 1 x Joystick Module 1 x Ultrasonic Sensor Module 1 x Reed Switch Module 1 x Power Supply Module 1 x TAP Module 1 x Photo Resistor Module 1 x IR Emission Module 1 x IR Receiver Module 1 x Laser Emission Module 1 x Relay Module 1 x Metal Touch Module 1 x Tilt Switch Module 1 x Human Body Infrared Sensor Module 1 x Clock Module (Without CR2025 Battery) 1 x Digital Temperature Module 1 x Water Level Sensor Module 1 x Gyroscope 6DOF Module (With 2Pcs Pin Header) 1 x Temperature and Humidity Sensor Module 1 x Rotary Encoder Module 1 x Buzzer Module 1 x Vibration Module 10 x Resistor Set (Each Has 10cs) 1 x Storage Box