DFRobot Romeo V2 - an Arduino Robot Board (Arduino Leonardo) with Motor Driver RoMeo V2 [R3] is an All-in-One Arduino based robot board, it is especially designed for robotics applications, and extended devices. Romeo benefits from the Arduino open source platform, it is supported by thousands of open source projects, and can easily be expanded with Arduino Shields. The integrated 2 way DC motor driver and Xbee socket allows you to start your project immediatly without the need for an additional motor driver or wireless shield. The RoMeo V2 [R3] Arduino Robot Board behaves like Arduino Leonardo based on the ATmega32u4 chip,You can program it directly from the Arduino IDE 1.0.1 or later version. Because of the ATmega32U4 as it&#039;s sole microcontroller, RoMeo V2 is simple and easy to use. The 32U4 chipset handles the USB directly, code libraries are available which allow the board to emulate a computer keyboard, mouse, and more using the very interesting USB-HID protocol! The best advantage is that ATmega32u4 has two serial ports which allows uploading sketches without removing wireless modules. Debuging is no longer a painful task. Wide operating input voltage Directly support Xbee and XBee form factor wifi, bluetooth and RF modules ON/ OFF switch to control the system power from external motor power 3 Digital I/O extensions (D14-D16) S1 - S5 switch replace jump cap, allows free use for the GPIO. Micro USB instead of A-B USB connector Analog sensor extension port: Orange for Signal, Red for Vcc, Black for GND DC Supply: USB Powered or External 6V ~ 23V DC DC Output: 5V(2A) / 3.3V DC Motor driver Continuous Output Current: 2A Bootloader: Arduino Leonardo Compatible with the Arduino R3 pin mapping Analog Inputs: A0-A5, A6 - A11 (on digital pins 4, 6, 8, 9, 10, and 12) PWM: 3, 5, 6, 9, 10, 11, and 13. Provide 8-bit PWM output 5 key inputs for testing Auto sensing/switching external power input Support Male and Female Pin Header Built-in Xbee socket Integrated sockets for APC220 RF Module and DF-Bluetooth Module Three I2C/TWI Interface Pin Sets (two 90pin headers) Two way Motor Driver with 2A maximum current One Stepper Motor Drive with 2A maximum current Microcontroller: ATmega32u4 Serial Interface TTL Level USB Working voltage: 5V CPU Frequency: 16MHz SPI: 1 Interrupt pins: 2 Vin: 7-12V IDE version: Arduino 1.0 and above