Please Turn OFF the Motor Power Switch when debugging Romeo through USB

cable. Or the external power supply(>12V) will destroy your Romeo.

NOTE:



Please select Leonardo board when uploading a sketch by Arduino IDE.



Serial port 0 or 1 Read more from Arduino.cc: Please use Serial1.***() instead of

Serial.***() in code to communicate with devices connected to serial interface, i.e. Pin

0/1. e.g. Bluetooth, WiFi module, Xbee etc. Serial.***() is for USB debugging on pc

serial monitor.



Analog 0: If you are going to use the Analog port 0, you have to pay attention to the

switch(s1-s5), turn it OFF please. There are five buttons connected to A0, if you

turn ON the button switch,then the A0 read value would be not the one you want.

Specification

Basic

Feature

Improvement compared with

Romeo v1.1

DC Supply:USB Powered or

External 6V~23V DC

DC Output:5V(200mA) /

3.3V(100mA)

Motor driver Continuous Output

Current:2A

Microcontroller:ATmega32u4

Bootloader: Arduino Leonardo

Serial Interface

TTL Level(Serial1.***();)

USB(Serial.***())

Size:89x84x14mm

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 90°pin headers)

Two way Motor Driver with 2A

maximum current

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