Arduino Expansion Shield for Raspberry Pi model B

What's the difference between Raspberry Pi and Arduino?

We all know Raspberry Pi is a mini-computer running on Linux operating system; while Arduino is a microcontroller running on simple I/Os. Both of them focuses on very different areas. Compared with Arduino, the Pi gets much better computing performance.



A simple example would be, when building a mobile robot, we use the Raspberry Pi to extend its vision and get a nice tiny monitor. Meanwhile, Arduino handle nicely with the motor driving part and delivers fast responses like obstacle avoidance. Because, without the OS, the response time of rapid changes on the Arduino is much shorter. Also the high performance Pi can deals much easily with wireless communications, imaging and running complex algorithm..
FEATURES
Integrate with the Xbee socket
Easy connection with Arduino and Raspberry Pi directly
Compatible with BLE Link(BT4.0)/Bluetooth Bee(BT2.1) and Xbee modules
Embeded DS1307 RTC module, which keeps time of the Pi even when the power is off, or when battery removed
Bidirectional logic converter for Raspberry Pi GPIO to convert signal between 3.3v and 5v
3 pin headers sensor port for Arduino pins and Pi GPIO, directly compatible with hundreds of Arduino sensors and modules
Arduino shield compatible layout makes it possible to extend Arduino shield features for your Pi
SPECIFICATION
Onboard Microcontroller: ATmega32u4
Arduino Leonardo Chip
Arduino Compatible pin mapping
Compatible with All arduino standard shield and sensors
System Voltage: 5v
Extended 8 Raspberry Pi GPIO with Stardard 3pin sensor pin headers
Extended Raspberry Pi SPI & I2C and UART port
Dimension: 88mm x 56mm x 17mm(3.46"x2.20"0.67")
OPTIONAL PARTS
Relay Module V3.1 for IOT AC control
Analog pH Meter Kit for monitoring Water quality of your pool
SHIPPING LIST
Arduino Expansion Shield for Raspberry Pi B+ x1
20cm micro USB cable x1 CR1220 battrey not include flight constrain