Are you upset about the piles of jump wires, breadboards, resistors, other bits and pieces during the experiment? The multi-function expansion board is produced to solve these problems This is an open-source code base and Simple i / o platform, and with the use of a similar java, C language development environment. So you can quickly use the language with Flash or Processing and other software to make interactive works. It can be used to complete the development of electronic components such as Switch, Sensors or other controllers, LED, stepper motor or other output device. You can also operate independently as a software platform that can communicate with , for example: flash processing Maximum / MSP VVVV or other interactive software. Features: Can be seamlessly connected with mainstream controllers. 4-way LED indicator: In the actual projects, these indicators can indicate the program status to facilitate debugging. The temperature sensor interface for temperature measurement experiment. LM35 temperature sensor interface for temperature measurement experiment. 3296 accuracy adjustable potentiometer offers analog input port(can be used to control LED brightness, turn the steering angle, the digital voltage, etc.) Integrated infrared receiver that can fit any infrared remote control experiments. 4-bit digital tube(using 74HC595 driver provincial IO learning SPI), you can do digital tube display experiment (can display temperature, voltage, counter value,etc.). Three separate buttons, a reset button, the button can do experiments(human machine interface). The buzzer can be used for sound experiments.(Can alert, pronuncie, etc.) Bluetooth, wireless interface, voice module, voice recognition module can be used for wireless communication experiment. Servo interface, easy to drive servos. infrared detection interface for easy infrared docking and realization of human traffic statistics, etc. Note: The functions above provide interfaces only, and various function modules need to be purchased separately. Package list: 1 x Multifunctional Expansion Board .