Data Sheet

 DC Supply:USB Powered or External 6V~23V DC
 DC Output:5V(2A) / 3.3V DC
 Motor driver Continuous Output Current:2A
 Microcontroller:ATmega32u4
 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
 Serial Interface
- TTL Level
- USB
 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 90°pin headers)
 Two way Motor Driver with 2A maximum current
 One Stepper Motor Drive with 2A maximum current
 Size:89 x 84 x 14mm
 Improvement compared with Romeo v1.1
 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 extermal motor power
 3 Digital I/O extension(D14-D16)
 S1-S5 switch replace jump cap
 Micro USB instead of A-B USB connector
 Analog sensor extension port: Orange for Signal,Red for Vcc,Black for GND