DFRobot RoMeo BLE Arduino Robot Control Boards

DFRobot RoMeo BLE Arduino Robot Control Boards are all-in-one Arduino-based control boards designed for robotics applications from DFRobot. The boards benefit from the Arduino open-source platform and are supported by thousands of open-source codes. The RoMeo BLE and BLE mini-feature an ATmega328 microcontroller and on-board TI CC2540 chips.

The boards can easily be expanded with Arduino shields and feature an integrated 2-way DC motor driver and wireless socket. This allows for starting robot projects immediately without the need for an additional motor driver. RoMeo features DFRobot's standard 3-Pin-out designed and compatible with Gravity series sensors and actuators. Hundreds of sensors are now plug-and-play with RoMeo.

The RoMeo BLE has integrated BLUETOOTH® 4.0 and supports uploading sketch wireless which means no need to plug a cable to upload code. Just need a USB Bluno Link adapter.

Specifications

Specifications RoMeo BLE (DFR0305)
- Microcontroller: ATmega328P
- Bootloader: Arduino UNO
- On-board BLE chip: TI CC2540
- Transmission range: 70m in free space
- Support BLUETOOTH® remote update the Arduino program
- Support BLUETOOTH® HID
- Support iBeacons
- Support AT command to config the BLE
- Support Transparent communication through Serial
- Support the master-slave machine switch
- Support USB update BLE chip program
- 14 Digital I/O ports
- 6 PWM Outputs (Pin11, Pin10, Pin9, Pin6, Pin5, Pin3)
- 8 10-bit analog input ports
- 3 I2Cs
- Two-way H-bridged Motor Driver with 2A maximum current
- 5 Buttons
- Support Male and Female Pin Header
- Integrated sockets for APC220 RF Module
- Power Supply Port: USB or DC2.1
- External Power Supply Range: 5-23V
- DC output: 5V/3.3V
- Auto-sensing/switching external power input
- Size: 94x80mm (3.70x3.15")

Specifications RoMeo BLE mini (DFR0351)
- Microcontroller: Atmega328p
- Bootloader: Arduino UNO
- On-board BLE chip: TI CC2540
- Transmission range: <30m
- Easy to use BLE firmware updating
- Wireless Programming via BLE
- Support BLUETOOTH® HID
- Support AT command to config the BLE
- Support the master-slave machine switch
- Transparent communication through Serial
- 8 Digital I/O ports
- 2 PWM Outputs(Pin11,Pin10)
- 4 10-bit analog input ports
- USB port
- Auto-sensing/switching external power input
- TTL I2C ICSP interfaces
- Two-way H-bridged Motor Driver with 1.5A maximum current (each one)
- Size: 45x38.5mm (1.77x1.52")

On-the-Board

Microchip ATmega328 8-bit AVR® microcontrollers are high-performance RISC-based devices that combine 32KB ISP Flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, serial programmable USART, and more.

Texas Instruments CC2540 Bluetooth® System-on-Chip devices are cost-effective, low-power true SoC solutions for BLUETOOTH® low energy applications. The TI CC2540F128 and CC2540F256 SoCs feature 128 or 256KB flash memory and combine an excellent RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8KB RAM, and many other powerful supporting features and peripherals.