DFRobot Romeo - an Arduino Robot Control Board with Motor Driver Romeo is an All-in-One Arduino compatible microcontroller especially designed for robotics applications from DFRobot Romeo is a robot control board based on Arduino Uno. It has built in 2x2A DC motor drivers and socket for bluetooth / APC220 communications. The integrated sensor shield allows it connect hundreds of different sensors. It benefits from the Arduino open source platform, it is supported by thousands of open source codes, and can easily be expanded with your Arduino-comaptible shields The integrated 2 way DC motor driver and wireless socket allows you to start your project immediatly without the need for an additional motor driver or wirless shield. You can Download User Guide on this page for more information. (Technical Specification - User Guide) Romeo family is an All-in-One Robot control board especially designed for robotics applications from DFRobot.  It benefits from the Arduino open source platform, it is supported by thousands of open source codes, and can easily be expanded with your Arduino shields. The integrated 2 way DC motor driver and wireless socket allows you to start your own robot project immediately without the need for an additional motor driver.  Not just has the motor driver, Romeo is also designed to have extra power for servos which need more current. DFR0004 - This is the first member in Romeo family that is born in 2009. It is not only the very first Arduino Robot Controller, but also the first Arduino-derived board in the market. The current version of Romeo is based on Arduino Uno. DC Supply:USB Powered or External 7V~12V DC DC Output:5V /3.3V DC and External Power Output Bootloader: Arduino Uno Compatible with the Arduino Uno pin mapping 8 Channels 10-bit Analog I/O USB interface 5 key inputs Auto sensing/switching power input ICSP header for direct program download Serial Interface TTL Level Support Male and Female Pin Header Integrated sockets for APC220 RF Module and DF-Bluetooth Module Three I2C Interface Pin Sets(two 90pin headers) Two way Motor Driver with 2A maximum current Gold plating pcb board Microcontroller: Atmega328 Working voltage: 5V CPU Frequency: 16MHz SPI: 1 Interrupt pins: 2 Vin: 7-12V IDE version: Arduino 1.0 and above