Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0 Expand

Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0

DFRobot DFRobot



The Romeo BLE is an Arduino Robot Control Board with Bluetooth 4.0 capabilities, featuring an onboard 2-way H-bridged motor driver for robotics.

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If you love robotics like we do here at DIYElectronics, you will also love this fantastic little Arduino Robot Control Board with Bluetooth 4.0 compatibility, known as the Romeo BLE. This DFRobot Original controller board is the ultimate board for robotics, and has been designed specifically to be used for small robots like the “Turtle” Robot Kit and “Pirate” Robot Kit, with an onboard motor driver, built-in Bluetooth 4.0 BLE capabilities, and even an iOS APP called “GoBLE” as well as the Visual Programming APP “WhenDo” to complement it.

The onboard motor driver on the Romeo BLE is a 2-way H-bridged driver with 2A max current, which is capable of driving DC Motors as well as power-hungry Servo Motors if necessary. With this at hand, all you will need to get your robot project underway is this board, a power supply or battery pack, and a Bluetooth capable device for controlling your little buddy once it’s built.

So, in essence, the Romeo BLE is a very upgraded Arduino Board, but with a good range of extra features that add functionality and convenience in a variety of different ways. From integrated wireless communications and motor drivers, to complementary applications and onboard buttons and switches, there are few other boards that can offer the full package like the Romeo BLE can.

Please Note: Although this board is based on Arduino and features a MicroUSB Port, it can't actually be programmed directly via USB, but instead utilises Wireless BLE Programming, which of course means that you will need the trusty Bluno Link USB Bluetooth Dongle to effectively modify and upload code for your robots or other applications. Furthermore, if you ever need to update the Bluetooth Chip, then you will need to use the MicroUSB port to do so.


Romeo BLE Control Board with Bluetooth 4.0  -  Technical Specifications:

  • Version

– V1.0

  • Microcontroller

– ATmega328P

  • Bootloader

– Arduino UNO

  • Onboard BLE Chip

– TI CC2540 (Integrated Bluetooth 4.0)

  • Recommended BLE Dongle

Bluno Link USB Bluetooth Dongle

  • Transmission Range

– 70m in Open Field

  • Remote Updating

– Supported via Bluetooth

  • Bluetooth HID

– Supported

  • AT Commands to Config BLE

– Supported

  • Transparent communication via Serial

– Supported

  • Master-Slave Machine Switch

– Supported

  • USB Update BLE Chip Program

– Supported

  • Digital I/O Ports

– 14

  • PWM Outputs

– 6  (Pin 11, Pin 10, Pin 9, Pin 6, Pin 5, Pin 3)

  • 10-bit Analog Input Ports

– 8

  • I2Cs

– 3

  • Onboard Motor Driver

– Two-way H-Bridged Driver with 2A Max Current

  • Onboard Buttons

– 5

  • Male / Female Pin Header

– Optional (Both Supported)

  • APC220 RF Module Sockets

– Integrated

  • Power Supply Ports

– USB (500mA Limit)

– External Power Terminals

– External Digital Power Terminals

  • External Power Supply Range

– 5V to 23V DC (Auto-Sensing/Switching)

  • DC Output

– 5V / 3.3V

  • Dimensions

– 94 x 80mm


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Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0

Romeo BLE - Arduino Robot Control Board with Bluetooth 4.0

As self-proclaimed “Robo-holics”, DFRobot is a company comprised of over 100 staff members, of which 30% are engineers who love to build robots. It was started in 2008 with the goal of embracing and promoting open-source hardware, with a core focus on Arduino, Raspberry Pi and their very own LattePanda development boards. Since then, DFRobot have manufactured over 1300 unique modules, sensors and components that all work together and complement each other, allowing users like us to enjoy a full spectrum of cutting edge robotics and electronics without having to pay premium prices.

With the primary goal of developing and manufacturing great quality products, while making them accessible to as many people as possible, DFRobot are rapidly becoming one of the most common-place brands in the world of open-source robotics and electronics. With more than 1300 products developed in-house, and an impressive range of different categories and specialisations, there are few brands in the world who can compete in terms of quality, accessibility and genuine innovation.