Product family

Romeo robot controllers

9 variants · Varies by controller architecture, wireless connectivity, motor channels, board form factor, hardware generation

DFRobot

About this product family

Manufacturer-defined Romeo robot controllers family, with size and configuration details recorded on each individual model.

Compare variants

Values retain their source conditions and claim stage. A missing value means it has not been published in this catalogue.

Variant / modelAnalog i/o countBoard dimensionsDigital i/o countGdi connectorsI2c interfacesDetails & evidence
Romeo Mini ESP32-C3 DFR1063

3 portsConfiguration: DFR1063; Manufacturer specification; no independent measurement.

47 × 38.5 mmConfiguration: DFR1063; Manufacturer specification; no independent measurement.

4 portsConfiguration: DFR1063; Manufacturer specification; no independent measurement.

1 connectorsConfiguration: DFR1063; Manufacturer specification; no independent measurement.

1 interfacesConfiguration: DFR1063; Manufacturer specification; no independent measurement.

Full specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog i/o count

3 ports

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Analog I/O: x3

Board dimensions

47 × 38.5 mm

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Module size: 47x38.5mm

Digital i/o count

4 ports

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Digital I/O: x4

Gdi connectors

1 connectors

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
GDI: x1

I2c interfaces

1 interfaces

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
I2C: x1

I2c pinout

SDA GPIO8; SCL GPIO9; 3.3 V supply

Manufacturer specification

Configuration: wiki-DFR1063; Manufacturer specification; no independent measurement.

Romeo Mini ESP32-C3 Robot Control Board | Compact & Versatile | DFRobot Wiki
Standard I2C interface: SDA (8), SCL (9), VCC (3.3V), GND

Main controller

ESP32-C3-MINI-1

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Main control chip: ESP32-C3-MINI-1

Motor continuous drive current per channel

1.7 A

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Motor output current: 1.7A continuous drive current per channel

Motor outputs

2 channels

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Motor: x2

Servo input range

5–12 V

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Servo input voltage: 5-12V

Shared uart and servo pins

UART cannot be used when the shared servo ports are used

Manufacturer specification

Configuration: wiki-DFR1063; Manufacturer specification; no independent measurement.

Romeo Mini ESP32-C3 Robot Control Board | Compact & Versatile | DFRobot Wiki
The UART interface shares two IO ports with servo ports, so UART cannot be used when servos are used.

Uart interfaces

1 interfaces

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
UART: x1

Usb-c connectors

1 connectors

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Type-C: x1

Usb-c input voltage

5 V

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Type-C input voltage: 5V

Vin range

5–12 V

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
VIN input voltage: 5-12V

Wireless communication

Wi-Fi and Bluetooth 5

Manufacturer specification

Configuration: DFR1063; Manufacturer specification; no independent measurement.

Compact ESP32-C3 Control Board | Robotics WiFi/Bluetooth Solution - DFRobot
Featuring an onboard ESP32-C3 module, it offers seamless Wi-Fi and Bluetooth 5 dual-mode communication.
Romeo ESP32-S3 DFR0994Not publishedNot published

27 portsConfiguration: DFR0994; Manufacturer specification; no independent measurement.

Not published

2 interfacesConfiguration: DFR0994; Manufacturer specification; no independent measurement.

Full specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

5 v supply maximum output current

2 A

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Maximum Output Current of 5V Power Supply: 2A

Adc

Two 12-bit SAR ADCs; 20 channels

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
2×12-bit SAR ADC, 20 Channels

Bluetooth protocol

Bluetooth 5 and Bluetooth mesh

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Bluetooth Protocol: Bluetooth 5, Bluetooth mesh

Bluetooth published data rates

125 Kbps; 500 Kbps; 1 Mbps; 2 Mbps

Manufacturer specification

Configuration: DFR0994; Source labels these values frequency but prints data-rate units; values retained with their printed units.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Bluetooth Frequency: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps

Controller vin range

7–24 V

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
VIN Input Voltage: 7-24V

Digital i/o count

27 ports

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Digital I/O x27

Dma channels

5 transmit and 5 receive channels

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
DMA Controller: transmit channel x5, receive channel x5

Expansion connectors

GDI display, DVP camera, USB and MicroSD

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
On-board GDI display, DVP camera, USB, and MicroSD card interfaces

Flash

16 MB

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Flash: 16MB

I2c interfaces

2 interfaces

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
I2C x2

I2s interfaces

2 interfaces

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
I2S x2

Interface multiplexing

Functional pins are multiplexed; interface quantities are maxima

Manufacturer specification

Configuration: wiki-DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robot Development Board | WiFi & AI | DFRobot Wiki
The functional pins are multiplexed, and the above number of interfaces is the maximum value.

Ir transceiver channels

5 transmit and 5 receive channels

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
IR Transceiver: transmit channel x5, receive channel x5

Led pwm controller channels

8 channels

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
LED PWM Controller 8 Channels

Motor control modes

PH/EN and PWM

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Supporting both PH/EN control mode and PWM control mode

Motor drive capacity

2.5 A

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Motor Drive Capacity: 2.5A

Motor driver channels

4 channels

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
A four-channel 2.5A high-current H-bridge motor driver

Motor vm range

5–24 V

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
VM Input Voltage: 5-24V

Operating temperature range

0–60 °C

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Operating Temperature: 0 to 60℃

Operating voltage

3.3 V

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Operating Voltage: 3.3V

Processor

Xtensa dual-core 32-bit LX7

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Processor: Xtensa® dual-core 32-bit LX7 microprocessor

Processor clock

240 MHz

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Main Frequency: 240 MHz

Psram

8 MB

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
PSRAM: 8MB

Published dimension claim

25.4 × 60 mm / 2.95 × 3.54 inches

Manufacturer specification

Configuration: DFR0994; Manufacturer prints incompatible metric/imperial dimensions. Retained verbatim as an unresolved source conflict; do not use as a verified size.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Dimension: 25.4x60mm/2.95x3.54"

Rom

384 KB

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
ROM: 384KB

Rtc sram

16 KB

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
RTC SRAM: 16KB

Shipped camera selection

OV2640 or OV3660, randomly shipped

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
OV2640 or OV3660 camera x1 (randomly shipped)

Spi interface count

4 interfaces

Manufacturer specification

Configuration: DFR0994 store claim; Store claim conflicts with official wiki x2. Pins are multiplexed; manufacturer clarification required.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
SPI x4

Spi interface count

2 interfaces

Manufacturer specification

Configuration: DFR0994 wiki claim; Wiki claim conflicts with official store x4; pins are multiplexed and quantities are maximum values. Manufacturer clarification required.

Romeo ESP32-S3 Robot Development Board | WiFi & AI | DFRobot Wiki
SPI x2

Sram

512 KB

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
SRAM: 512KB

Uart interfaces

3 interfaces

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
UART x3

Usb-c input voltage

5 V

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Type-C Input Voltage: 5V

Usb protocol

USB 2.0 OTG full-speed

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
USB: USB 2.0 OTG full-speed

Wi-fi band

2.4 GHz

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
WIFI Frequency: 2.4GHz

Wi-fi channel bandwidths

20 or 40 MHz

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Bandwidth: Support 20 MHz and 40 MHz at 2.4 GHz band

Wi-fi frame aggregation

TX/RX A-MPDU and TX/RX A-MSDU

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
Frame Aggregation: TX/RX A-MPDU, TX/RX A-MSDU

Wi-fi operating modes

Station, SoftAP, combined SoftAP+Station

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
WIFI Mode: Station, SoftAP, SoftAP+Station combined mode

Wi-fi protocol

IEEE 802.11b/g/n

Manufacturer specification

Configuration: DFR0994; Manufacturer specification; no independent measurement.

Romeo ESP32-S3 Robotics Board | FPV Camera & Motor Driver - DFRobot
WIFI Protocol: IEEE 802.11b/g/n
Romeo BLE DFR0305Not published

94 × 80 mmConfiguration: DFR0305; Manufacturer specification; no independent measurement.

Not publishedNot publishedNot publishedFull specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog inputs

8 ports

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
8 10-bit analog input ports

Analog resolution

10 bit

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
8 10-bit analog input ports

Ble configuration

AT commands

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Support AT command to config the BLE

Ble serial mode

Transparent serial communication

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Support Transparent communication through Serial

Bluetooth chip

TI CC2540

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
On-board BLE chip: TI CC2540

Bluetooth hid

Supported

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Support Bluetooth HID

Board dimensions

94 × 80 mm

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Size: 94mm x 80mm(3.70"x3.15")

Bootloader

Arduino UNO

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Bootloader: Arduino UNO

Buttons

5 buttons

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
5 Buttons

Dc output voltages

5 and 3.3 V

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
DC output: 5V/3.3V

Digital i/o

14 ports

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
14 Digital I/O ports

External supply range

5–23 V

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
External Power Supply Range: 5-23V

I2c connector sets

3 sets

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
3 I2Cs

Ibeacon support

Supported

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Support iBeacons

Microcontroller

ATmega328P

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Microcontroller: ATmega328P

Motor driver

Two-way H-bridge, 2 A maximum

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Two-way H-bridged Motor Driver with 2A maximum current

Power connectors

USB or DC2.1

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Power Supply Port: USB or DC2.1

Pwm outputs

6 ports

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
6 PWM Outputs (Pin11, Pin10, Pin9, Pin6, Pin5, Pin3)

Pwm pins

11, 10, 9, 6, 5, 3

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
6 PWM Outputs (Pin11, Pin10, Pin9, Pin6, Pin5, Pin3)

Radio expansion

APC220 RF module socket

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Integrated sockets for APC220 RF Module

Radio range

70 m

Manufacturer specification

Configuration: DFR0305; Free-space manufacturer claim.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Transmission range: 70m in free space

Wireless programming

Bluetooth remote Arduino program update

Manufacturer specification

Configuration: DFR0305; Manufacturer specification; no independent measurement.

Romeo BLE - Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Support Bluetooth remote update the Arduino program
Romeo for Intel® Edison Controller DFR0331Not published

100 × 88 × 15 mmConfiguration: edison; Manufacturer specification; no independent measurement.

Not publishedNot published

1 interfacesConfiguration: edison; Manufacturer specification; no independent measurement.

Full specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog i/o pins

6 pins

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Analog I/O pins: 6

Board dimensions

100 × 88 × 15 mm

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Size: 100x88x15mm(3.94x3.46x0.59")

Dc current per i/o pin

10 mA

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
DC Current per I/O Pin: 10mA

Dc output voltages

5 and 3.3 V

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Output Voltage: 5V/3.3V

Digital i/o pins

14 pins

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Digital I/O pins: 14

Edison module inclusion

Not included

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Romeo for Edison Controller (without Edison) x1

I2c interfaces

1 interfaces

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Support 1 x I2C interface

Input voltage limits

6–20 V

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Input Voltage(limits): 6-20V

Mass

70 g

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Weight: 70g

Motor driver current claim

Two channels, 2 A peak

Manufacturer specification

Configuration: DFR0331 features claim; Features call 2 A peak; specification table calls 2 × 2 A constant. Both manufacturer claims retained; rating duration unresolved.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Support 2 way motor drive (Peak Current: 2A)

Motor driver current claim

2 × 2 A constant current

Manufacturer specification

Configuration: DFR0331 specification-table claim; Specification table calls 2 A constant; features call 2 A peak. Both manufacturer claims retained; rating duration unresolved.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Motor Driver Constant Current: 2 x 2A

Operating voltage

5 V

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Operating Voltage: 5V

Pwm outputs

4 interfaces

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
4 PWM Output interfaces

Usb otg

Supported

Manufacturer specification

Configuration: edison; Manufacturer specification; no independent measurement.

Romeo for Intel® Edison Controller (Without Intel® Edison) - DFRobot
Support OTG
Romeo BLE mini DFR0351 V2.0Not published

45 × 38.5 mmConfiguration: DFR0351; Manufacturer specification; no independent measurement.

8 portsConfiguration: DFR0351; Manufacturer specification; no independent measurement.

Not publishedNot publishedFull specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog inputs

4 ports

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Analog Input Pins: 4

Bluetooth chip

TI CC2540

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
BLE chip: TI CC2540

Board dimensions

45 × 38.5 mm

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Size: 45x38.5mm

Bootloader flash usage

0.5 KB

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Flash: 32 KB (ATmega328P) of which 0.5 KB used by bootloader

Clock frequency

16 MHz

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Clock Frequency: 16 MHz

Digital i/o count

8 ports

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Digital I/O Pins: 8

Eeprom

1 KB

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
EEPROM: 1 KB (ATmega328P)

Flash

32 KB

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Flash: 32 KB (ATmega328P) of which 0.5 KB used by bootloader

Ide board selection

Arduino UNO

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Board selection: Arduino UNO

Microcontroller

ATmega328P

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Microprocessor: ATmega328P

Motor continuous current per channel

1.2 A

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Output current: 1.2A single-channel continuous drive current

Motor driver headline claim

2 × 2 A H-bridge

Manufacturer specification

Configuration: DFR0351; Headline summary does not override the separate 1.2 A continuous, 2 A continuous-pulse and 3.2 A single-pulse ratings. Exact current duration conditions must be observed.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
2x2A H-bridge motor driver

Motor driver revision

TB6612 replaces HR8833 in V2.0

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
V2.0 has upgraded its motor driver IC, it replaces HR8833 with TB6612 motor driver chip.

Motor peak current

3.2 A

Manufacturer specification

Configuration: DFR0351; Single-pulse peak condition; not a continuous current rating.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Start / Peak Current: 2A (continuous pulse) / 3.2A (single pulse)

Motor pins

D4, D5, D6, D7

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Motor Drive Pins: D4, D5, D6, D7

Motor start current

2 A

Manufacturer specification

Configuration: DFR0351; Continuous-pulse condition as printed by manufacturer; not the continuous 1.2 A rating.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Start / Peak Current: 2A (continuous pulse) / 3.2A (single pulse)

Pwm outputs

4 ports

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
PWM Digital I/O Pins: 4 (D3, D9, D10, D11)

Pwm pins

D3, D9, D10, D11

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
PWM Digital I/O Pins: 4 (D3, D9, D10, D11)

Radio range

30 m

Manufacturer specification

Configuration: DFR0351; Open area manufacturer claim.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
Transmission distance: 30m (open area)

Sram

2 KB

Manufacturer specification

Configuration: wiki-DFR0351; Official wiki gives 2 KB clearly; current store contains malformed text SRAM2: KB.

Romeo BLE Mini V2.0 - Compact Arduino Board for DIY Robotics | DFRobot Wiki
SRAM 2 KB (ATmega328P)

Usb connector

microUSB

Manufacturer specification

Configuration: DFR0351; Manufacturer specification; no independent measurement.

Romeo BLE mini - Small Control Board for Robot - Arduino Compatible - Bluetooth 4.0 - DFRobot
microUSB connector
Romeo BLE Quad DFR0398Not published

67 × 42 mmConfiguration: DFR0398-retired; Manufacturer specification; no independent measurement.

Not publishedNot publishedNot publishedFull specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog i/o pins

5 pins

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Analog I/O Pins: 5

Bluetooth chip

TI CC2540; Bluetooth 4.0

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Bluetooth Chip: TI CC2540 (Bluetooth 4.0)

Board dimensions

67 × 42 mm

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Size: 67 x 42 (mm)

Clock frequency

72 MHz

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Clock Speed: 72 MHZ

Dc motor channels

4 channels

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
DC Motor: 4 way

Digital i/o pins

10 pins

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Digital I/O Pins: 10

Encoder interfaces

Four-way motor driver with encoder interfaces

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Beyond this, it also includes a 4-way DC motor driver and encoder interfaces.

External supply range

7–10 V DC

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
DC Supply: USB Powered or External 7V~10V DC

Flash published claim

512K; customizable allocation

Manufacturer specification

Configuration: DFR0398-retired; Source prints K without an explicit byte unit; allocation details are configurable.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Flash: 512K (Customizable Flash assignment, refer to Flash chapter for more info)

I2c default pins

SDA 30; SCL 29

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
I2C/IWC: 30 (Default SDA), 29 (Default SCL)

Mass

54 g

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Weight: 54g

Microcontroller

STM32 F103RET6

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Microcontroller: STM32 F103RET6

Operating voltage

3.3 V

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Operating Voltage: 3.3V

Radio range

30 m

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Communication Range: 30m

Serial1 pins

RX1 0; TX1 1

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Serial1 0 (Rx1) and 1 (Tx1)

Serial3 pins

RX3 30; TX3 29

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Serial3 30 (Rx3), and 29 (Tx3)

Serial ports

2 ports

Manufacturer specification

Configuration: DFR0398-retired; Manufacturer specification; no independent measurement.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
Serial Port: 2 (Serial1, Serial3)

Sram published claim

64k

Manufacturer specification

Configuration: DFR0398-retired; Source prints k without an explicit byte unit. Retained as text rather than inventing a unit.

Romeo BLE Quad - A STM32 Robot Controller Board with Quad DC Motor Driver & Bluetooth 4.0 - DFRobot
SRAM: 64k
Romeo V2 DFR0225Not published

89 × 84 × 14 mmConfiguration: DFR0225; Manufacturer specification; no independent measurement.

Not publishedNot publishedNot publishedFull specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog input pin mapping

A0–A5; A6–A11 on digital pins 4, 6, 8, 9, 10 and 12

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Analog Inputs: A0-A5, A6 - A11 (on digital pins 4, 6, 8, 9, 10, and 12)

Board dimensions

89 × 84 × 14 mm

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Size: 89 x 84 x 14mm (3.50

Bootloader

Arduino Leonardo

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Bootloader: Arduino Leonardo

Dc motor driver

Two channels; 2 A maximum

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Two-way Motor Driver with 2A maximum current

Dc output claim

5 V (2 A) / 3.3 V

Manufacturer specification

Configuration: DFR0225 store claim; Current store claim; official wiki instead prints 5 V (200 mA) / 3.3 V (100 mA). Revision dependence unresolved; do not assume interchangeable current limits.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
DC Output: 5V(2A) / 3.3V DC

Dc output claim

5 V (200 mA) / 3.3 V (100 mA)

Manufacturer specification

Configuration: DFR0225 wiki claim; Official wiki claim; current store instead prints 5 V (2 A) / 3.3 V. Revision dependence unresolved; do not assume interchangeable current limits.

Romeo V2 - a Robot Control Board with Motor Driver | DFRobot Wiki
DC Output: 5V(200mA) / 3.3V(100mA)

External supply range

6–23 V DC

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
DC Supply: USB Powered or External 6V ~ 23V DC

I2c/twi connector sets

3 sets

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Three I2C/TWI Interface Pin Sets (two 90°pin headers)

Key inputs

5 inputs

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
5 key inputs for testing

Microcontroller

ATmega32u4

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Microcontroller: ATmega32u4

Motor continuous current

2 A

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Motor driver Continuous Output Current: 2A

Pin mapping

Arduino R3 compatible

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Compatible with the Arduino R3 pin mapping

Pwm pins

3, 5, 6, 9, 10, 11, 13

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
PWM: 3, 5, 6, 9, 10, 11, and 13. Provide 8-bit PWM output

Pwm resolution

8 bit

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
PWM: 3, 5, 6, 9, 10, 11, and 13. Provide 8-bit PWM output

Radio expansion sockets

APC220 RF and DF-Bluetooth modules

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Integrated sockets for APC220 RF Module and DF-Bluetooth Module

Stepper driver

One stepper motor; 2 A maximum

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
One Stepper Motor Drive with 2A maximum current

V2.2 power-system change

Power system redesigned to improve ADC stability

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Romeo V2.2 redesigns the power supply system to improve the stability of the ADC circuit.

Xbee socket

Built-in

Manufacturer specification

Configuration: DFR0225; Manufacturer specification; no independent measurement.

Romeo V2 - a Robot Control Board with Motor Driver (Compatible with Arduino) - DFRobot
Built-in Xbee socket
Romeo DFR0004Not published

90 × 80 × 14 mmConfiguration: DFR0004; Manufacturer specification; no independent measurement.

Not publishedNot publishedNot publishedFull specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog i/o channels

8 channels

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
8 Channels 10-bit Analog I/O

Analog resolution

10 bit

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
8 Channels 10-bit Analog I/O

Board dimensions

90 × 80 × 14 mm

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Size:90x80x14mm(3.54"x3.15"x0.55")

Bootloader

Arduino Uno

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Bootloader: Arduino Uno

Dc outputs

5 V, 3.3 V and external power output

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
DC Output:5V /3.3V DC and External Power Output

External supply range

7–12 V DC

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
DC Supply:USB Powered or External 7V~12V DC

I2c connector sets

3 sets

Manufacturer specification

Configuration: DFR0004 current store; Current store claim; wiki describes five sets and Atmega 168/328, apparently spanning earlier hardware. Exact revision difference unresolved.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Three I2C Interface Pin Sets(two 90°pin headers)

I2c connector sets

Five pin sets

Manufacturer specification

Configuration: DFR0004 legacy wiki; Wiki claim spans Atmega 168/328 hardware; current store specifies three sets and Atmega328. Do not silently combine revisions.

Romeo - Robot Control Board with Motor Driver | Arduino-Compatible | DFRobot Wiki
I2C Interface Five Pin Sets

Key inputs

5 inputs

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
5 key inputs

Mass

60 g

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Weight:60 gram

Microcontroller

Atmega328

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Microcontroller: Atmega328

Motor driver

Two channels; 2 A maximum

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Two way Motor Driver with 2A maximum current

Pin mapping

Arduino Uno compatible

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Compatible with the Arduino Uno pin mapping

Power switching

Automatic sensing and switching

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Auto sensing/switching power input

Programming interface

ICSP header

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
ICSP header for direct program download

Serial interface

TTL level

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Serial Interface TTL Level

Usb interface

Included

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
USB interface

Wireless expansion sockets

APC220 RF and DF-Bluetooth modules

Manufacturer specification

Configuration: DFR0004; Manufacturer specification; no independent measurement.

Romeo - a Robot Control Board with Motor Driver (compatible with Arduino) - DFRobot
Integrated sockets for APC220 RF Module and DF-Bluetooth Module
Romeo BLE mini DFR0351 V1.0Not published

45 × 38.5 mmConfiguration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Not publishedNot published

1 channelsConfiguration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Full specifications
Source-backed claims

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Analog i/o

4 channels

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Analog I/O pins: 4 channel

Bluetooth chip

TI CC2540

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
BLE chip: TI CC2540

Bluetooth protocol

BLE 4.0

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Romeo BLE mini is the first DFRobot compact size Romeo mainboard that integrates 2 way DC motor driver and BLE 4.0 wireless technology.

Board dimensions

45 × 38.5 mm

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Dimension: 45x38.5mm

Bootloader

Arduino UNO

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Builtin Bootloader: Arduino UNO

Digital i/o

8 channels

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Digital I/O pins: 8 channel (PWM: D10;D11)

I2c interfaces

1 channels

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
IIC/I2C: 1 channel

Microcontroller

ATmega328P

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Microcontroller: ATmega328P

Motor driver

Two channels, 1.5 A

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release claim; pulse/continuous duration is not specified. Do not substitute current V2.0 ratings.

Romeo BLE mini Free trial - DFRobot
Motor driver: 2 way 1.5A motor driver

Pre-release trial announcement date

2015-08-18

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Day precision. Manufacturer announcement of an upcoming free trial before official store sales. This is not a launch or first-shipping date.

Romeo BLE mini Free trial - DFRobot
Romeo BLE mini Free trial DFRobot Aug 18 2015

Programming and communication

Wireless/USB programming; Bluetooth HID; AT configuration; transparent serial; master/slave switching

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Support wireless programming;USB programming; Bluetooth HID; AT configuration; serial transparent transmission; master-slave machine switch ; automatic power switchover.

Pwm pins

D10; D11

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 pre-release trial hardware; manufacturer claim, not a V2.0 specification.

Romeo BLE mini Free trial - DFRobot
Digital I/O pins: 8 channel (PWM: D10;D11)

Radio range

60 m

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Open field; historical pre-release V1.0 claim, not the 30 m current V2.0 rating.

Romeo BLE mini Free trial - DFRobot
Transmission Range: 60m (Open field)

Release event type

Pre-release trial announcement

Manufacturer specification

Configuration: Romeo BLE mini DFR0351 V1.0 pre-release trial hardware; Historical V1.0 hardware. Trial application window begins 2015-08-19; no first shipping or commercial launch inferred.

Romeo BLE mini Free trial - DFRobot
Every month, DFRobot will choose a new product presenting to our customers before it officially sells on our online store. Here comes the season 1: Romeo BLE Mini.

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