4 Digital Multi-function Shield Expansion Board For Arduino®

Seamless docking with the 2009 UNO LENARDO 2560 and other mainstream controller
4 road LED indicator
DS18B20 temperature sensor interface, can make the temperature measurement experiment
LM35 temperature sensor interface, can make the temperature measurement experiment
3296 adjustable precision potentiometer, provide analog input port (which can be used for control LED brightness, turn the steering angle, digital
voltage etc.)
Infrared receiving head, can be suitable for any infrared remote control experiment
Four digital tube (driven by 74HC595 IO learning SPI), can do the digital tube display experiment (can display the temperature, voltage, count etc.)
Three independent key, a reset button, can do key experiment (human machine interface)
The buzzer can make sound experiments. (can alarm sounds, etc.)
Bluetooth, wireless interface, voice module, a voice recognition module, can be used for wireless communication experiment
The interface, convenient actuator
The infrared detection and infrared interface, convenient docking, realize people flow statistics