DFRobot Expansion Shield for Raspberry Pi B+ ATmega32u4 Leonardo chip Compatible with Arduino Shield Sensors

DFRobot Expansion Shield for Raspberry Pi B+ ATmega32u4 Leonardo chip Compatible with Arduino Shield Sensors
    
Description:    
We all know Raspberry Pi is a mini-computer running on Linux operating system; while Ardulno 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, Ardulno 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 Ardulno is much shorter. Also the high performance Pi can deals much easily with wireless communications, imaging and running complex algorithm.Therefore, with the Ardulno and Pi together, you get a powerful "brain" and "cerebellum" for your project, at one time.    

Specification:    
- Onboard Microcontroller: ATmega32u4    
- Ardulno Leonardo Chip    
- Compatible with Arduino pin mapping    
- Compatible with arduino All standard shield and sensors    
- System Voltage: 5v    
- Ardulno Digital I/O: 23    
- Ardulno Analog I/O: 12    
- Raspberry Pi B+ GPIO: 16    
- Raspberry Pi B+ I2C: 1    
- Raspberry Pi B+ ID_I2C: 1    
- Raspberry Pi B+ SPI: 1    
- Raspberry Pi B+ TTL UART: 1    
- Dimension: 88mm x 56mm x 26mm    

Optional parts    
- Relay Module V3.1 for IOT AC control    
- Analog pH Meter Kit for monitoring Water quality of your pool    
- SHT1x Humidity and Temperature Sensor    
- Motion Sensor for security and human detection    
- A nice and low cost LCD12864 display    
- 2A Motor Shield for robot building    
- Dual Bipolar Stepper Motor Shield    
- GSM/GPRS and GPS Shield    

Information: : Click here
Schematic diagram: Click here
Element position diagram: Click here

Shipping list:    
- Raspberry Pi B+ Expansion Shield  x 1    
- 20cm micro USB cable x 1    
- CR1220 button cell x 1