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. Romeo is also featured with DFRobot's standard 3 Pin-out designed and compatible with Gravity series sensors and actuators. Hundreds of sensors are now plug-play with Romeo. 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. It has built in 2x2A DC motor drivers and socket for bluetooth / APC220 Radio Communication Module communications. The integrated io sensor pinout allows it connect hundreds of different Gravity compatible sensors and modules. It has servo connector which is a plug&play. It is the ideal controller to build your own robot. Romeo All in One Robot Controller Board Review by Arnab Kumar Das Arduino Tank Robot Project using the Devastator metal chassis! DFRobot Arduino Microcontrollers Series Name DFRduino UNO DFRobot Leonardo DFRobot Mega 2560 Romeo V2- an Arduino Robot Board Romeo - an Arduino Robot Control Board with Motor Driver SKU DFR0216 DFR0221 DFR0191 DFR0225 DFR0004 Microcontroller ATmega328p ATmega32u4 ATmega2560 ATmega32U4 Atmega328 Working voltage 5V 5V 5V 5V 5V CPU Frequency 16MHz 16MHz 16MHz 16MHz 16MHz TIO ports / PWM 6 / 14 7 / 20 54 / 15 20 / 7 14 / 6 Analog inputs 6 12 16 12 8 UART 1 2 4 2 1 I2C 1 1 2 3 3 SPI 1 1 1 1 1 Interrupt pins 2 2 2 2 2 EEPROM[KB] 1 1 4 1 1 Flash[KB] 32 32 256 32 32 SRAM[KB] 2 2.5 8 2.5 2 USB A-B USB cable micro USB cable A-B USB cable micro USB cable A-B USB cable Dimension 75*55*15mm 75*55*15mm 100*53*15mm 89*84*14mm 90*80*14mm Vin 7-12V 7-12V 7-12V 7-12V 7-12V Price $19.9 $19.9 $24.9 $34.95 $29.5 Weight（g） 45 50 70 80 80 IDE version Arduino 1.0 and above Arduino 1.0 and above Arduino 1.0 and above Arduino 1.0 and above Arduino 1.0 and above Feature DFRduino UNO is fully compatible with Arduino UNO R3,suitable for Arduino beginner and hobbyists DFRobot Leonardo is a low cost controller, integrated with Xbee and SPI. Suitable for low cost and communication demand of hobbyists DFRduino Mega has 54 digital pins and 16 analog pins, 4 UART channels. Suitable for demands of vast sensors Use ATmega32u4, 2 serial ports. Intergrated with Xbee socket and motor drivers Arduino microcontroller with motor driver, communication ports, IO expansion ports, it can be used as the main controller of robots
